./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 7b2dab56 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_f0f63ee1-418f-4716-a5df-d391d1e61918/bin/utaipan/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_f0f63ee1-418f-4716-a5df-d391d1e61918/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_f0f63ee1-418f-4716-a5df-d391d1e61918/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_f0f63ee1-418f-4716-a5df-d391d1e61918/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-sets/test_mutex_double_lock.i -s /tmp/vcloud-vcloud-master/worker/run_dir_f0f63ee1-418f-4716-a5df-d391d1e61918/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_f0f63ee1-418f-4716-a5df-d391d1e61918/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_f0f63ee1-418f-4716-a5df-d391d1e61918/bin/utaipan/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_f0f63ee1-418f-4716-a5df-d391d1e61918/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_f0f63ee1-418f-4716-a5df-d391d1e61918/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_f0f63ee1-418f-4716-a5df-d391d1e61918/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-sets/test_mutex_double_lock.i -s /tmp/vcloud-vcloud-master/worker/run_dir_f0f63ee1-418f-4716-a5df-d391d1e61918/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_f0f63ee1-418f-4716-a5df-d391d1e61918/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 0.2.0-7b2dab5 [2020-12-09 19:43:44,113 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-09 19:43:44,118 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-09 19:43:44,147 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-09 19:43:44,147 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-09 19:43:44,149 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-09 19:43:44,151 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-09 19:43:44,153 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-09 19:43:44,155 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-09 19:43:44,156 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-09 19:43:44,157 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-09 19:43:44,159 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-09 19:43:44,159 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-09 19:43:44,160 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-09 19:43:44,161 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-09 19:43:44,163 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-09 19:43:44,164 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-09 19:43:44,165 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-09 19:43:44,167 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-09 19:43:44,169 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-09 19:43:44,171 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-09 19:43:44,172 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-09 19:43:44,173 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-09 19:43:44,174 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-09 19:43:44,177 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-12-09 19:43:44,178 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-12-09 19:43:44,178 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-12-09 19:43:44,179 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-12-09 19:43:44,180 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-12-09 19:43:44,181 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-12-09 19:43:44,181 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-09 19:43:44,182 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-09 19:43:44,183 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-09 19:43:44,184 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-09 19:43:44,185 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-09 19:43:44,185 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-09 19:43:44,186 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-09 19:43:44,186 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-09 19:43:44,186 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-09 19:43:44,187 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-09 19:43:44,188 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-09 19:43:44,188 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_f0f63ee1-418f-4716-a5df-d391d1e61918/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2020-12-09 19:43:44,210 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-09 19:43:44,210 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-09 19:43:44,211 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2020-12-09 19:43:44,211 INFO L138 SettingsManager]: * User list type=DISABLED [2020-12-09 19:43:44,211 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2020-12-09 19:43:44,211 INFO L138 SettingsManager]: * Explicit value domain=true [2020-12-09 19:43:44,211 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2020-12-09 19:43:44,212 INFO L138 SettingsManager]: * Octagon Domain=false [2020-12-09 19:43:44,212 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2020-12-09 19:43:44,212 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2020-12-09 19:43:44,212 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2020-12-09 19:43:44,212 INFO L138 SettingsManager]: * Interval Domain=false [2020-12-09 19:43:44,212 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2020-12-09 19:43:44,213 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2020-12-09 19:43:44,213 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2020-12-09 19:43:44,213 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-09 19:43:44,213 INFO L138 SettingsManager]: * sizeof long=4 [2020-12-09 19:43:44,213 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-12-09 19:43:44,214 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-12-09 19:43:44,214 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-09 19:43:44,214 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-09 19:43:44,214 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-09 19:43:44,214 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-09 19:43:44,214 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2020-12-09 19:43:44,214 INFO L138 SettingsManager]: * sizeof long double=12 [2020-12-09 19:43:44,214 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-09 19:43:44,214 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-09 19:43:44,214 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-09 19:43:44,215 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-09 19:43:44,215 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-12-09 19:43:44,215 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-09 19:43:44,215 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-09 19:43:44,215 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-09 19:43:44,215 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-09 19:43:44,215 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2020-12-09 19:43:44,215 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-12-09 19:43:44,216 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-09 19:43:44,216 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-12-09 19:43:44,216 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-12-09 19:43:44,216 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_f0f63ee1-418f-4716-a5df-d391d1e61918/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_f0f63ee1-418f-4716-a5df-d391d1e61918/bin/utaipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 84f62959dc20df3dcecaea8b03619fc02cb1358b [2020-12-09 19:43:44,397 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-09 19:43:44,414 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-09 19:43:44,416 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-09 19:43:44,416 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-09 19:43:44,417 INFO L275 PluginConnector]: CDTParser initialized [2020-12-09 19:43:44,418 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_f0f63ee1-418f-4716-a5df-d391d1e61918/bin/utaipan/../../sv-benchmarks/c/ldv-sets/test_mutex_double_lock.i [2020-12-09 19:43:44,465 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_f0f63ee1-418f-4716-a5df-d391d1e61918/bin/utaipan/data/544e076bf/f320dea8323540469dd709c0da4ba0cf/FLAGcb56dec63 [2020-12-09 19:43:44,880 INFO L306 CDTParser]: Found 1 translation units. [2020-12-09 19:43:44,880 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_f0f63ee1-418f-4716-a5df-d391d1e61918/sv-benchmarks/c/ldv-sets/test_mutex_double_lock.i [2020-12-09 19:43:44,890 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_f0f63ee1-418f-4716-a5df-d391d1e61918/bin/utaipan/data/544e076bf/f320dea8323540469dd709c0da4ba0cf/FLAGcb56dec63 [2020-12-09 19:43:44,899 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_f0f63ee1-418f-4716-a5df-d391d1e61918/bin/utaipan/data/544e076bf/f320dea8323540469dd709c0da4ba0cf [2020-12-09 19:43:44,900 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-09 19:43:44,901 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-09 19:43:44,902 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-09 19:43:44,903 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-09 19:43:44,905 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-09 19:43:44,905 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 07:43:44" (1/1) ... [2020-12-09 19:43:44,907 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@395a585 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 07:43:44, skipping insertion in model container [2020-12-09 19:43:44,907 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 07:43:44" (1/1) ... [2020-12-09 19:43:44,912 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-09 19:43:44,941 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-09 19:43:45,168 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud-vcloud-master/worker/run_dir_f0f63ee1-418f-4716-a5df-d391d1e61918/sv-benchmarks/c/ldv-sets/test_mutex_double_lock.i[25842,25855] [2020-12-09 19:43:45,172 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud-vcloud-master/worker/run_dir_f0f63ee1-418f-4716-a5df-d391d1e61918/sv-benchmarks/c/ldv-sets/test_mutex_double_lock.i[25967,25980] [2020-12-09 19:43:45,173 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud-vcloud-master/worker/run_dir_f0f63ee1-418f-4716-a5df-d391d1e61918/sv-benchmarks/c/ldv-sets/test_mutex_double_lock.i[26082,26095] [2020-12-09 19:43:45,176 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-09 19:43:45,186 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) [2020-12-09 19:43:45,186 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@1865fa6c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 07:43:45, skipping insertion in model container [2020-12-09 19:43:45,186 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-09 19:43:45,187 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2020-12-09 19:43:45,189 INFO L168 Benchmark]: Toolchain (without parser) took 286.15 ms. Allocated memory is still 102.8 MB. Free memory was 71.8 MB in the beginning and 59.5 MB in the end (delta: 12.3 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2020-12-09 19:43:45,189 INFO L168 Benchmark]: CDTParser took 0.16 ms. Allocated memory is still 69.2 MB. Free memory was 34.5 MB in the beginning and 34.4 MB in the end (delta: 77.0 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-09 19:43:45,190 INFO L168 Benchmark]: CACSL2BoogieTranslator took 284.16 ms. Allocated memory is still 102.8 MB. Free memory was 71.6 MB in the beginning and 59.7 MB in the end (delta: 12.0 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2020-12-09 19:43:45,192 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 69.2 MB. Free memory was 34.5 MB in the beginning and 34.4 MB in the end (delta: 77.0 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 284.16 ms. Allocated memory is still 102.8 MB. Free memory was 71.6 MB in the beginning and 59.7 MB in the end (delta: 12.0 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 0.2.0-7b2dab5 [2020-12-09 19:43:46,548 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-09 19:43:46,549 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-09 19:43:46,577 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-09 19:43:46,577 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-09 19:43:46,579 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-09 19:43:46,580 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-09 19:43:46,583 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-09 19:43:46,585 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-09 19:43:46,586 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-09 19:43:46,587 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-09 19:43:46,596 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-09 19:43:46,596 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-09 19:43:46,597 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-09 19:43:46,598 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-09 19:43:46,599 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-09 19:43:46,600 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-09 19:43:46,601 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-09 19:43:46,603 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-09 19:43:46,604 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-09 19:43:46,606 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-09 19:43:46,607 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-09 19:43:46,608 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-09 19:43:46,608 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-09 19:43:46,611 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-12-09 19:43:46,611 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-12-09 19:43:46,612 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-12-09 19:43:46,612 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-12-09 19:43:46,613 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-12-09 19:43:46,614 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-12-09 19:43:46,614 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-09 19:43:46,615 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-09 19:43:46,615 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-09 19:43:46,616 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-09 19:43:46,617 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-09 19:43:46,617 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-09 19:43:46,618 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-09 19:43:46,618 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-09 19:43:46,618 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-09 19:43:46,619 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-09 19:43:46,620 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-09 19:43:46,620 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_f0f63ee1-418f-4716-a5df-d391d1e61918/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2020-12-09 19:43:46,638 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-09 19:43:46,638 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-09 19:43:46,638 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2020-12-09 19:43:46,639 INFO L138 SettingsManager]: * User list type=DISABLED [2020-12-09 19:43:46,639 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2020-12-09 19:43:46,639 INFO L138 SettingsManager]: * Explicit value domain=true [2020-12-09 19:43:46,639 INFO L138 SettingsManager]: * Octagon Domain=false [2020-12-09 19:43:46,639 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2020-12-09 19:43:46,639 INFO L138 SettingsManager]: * Interval Domain=false [2020-12-09 19:43:46,640 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-09 19:43:46,640 INFO L138 SettingsManager]: * sizeof long=4 [2020-12-09 19:43:46,640 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-12-09 19:43:46,640 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-09 19:43:46,640 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-09 19:43:46,640 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-09 19:43:46,640 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-09 19:43:46,641 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2020-12-09 19:43:46,641 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2020-12-09 19:43:46,641 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2020-12-09 19:43:46,641 INFO L138 SettingsManager]: * sizeof long double=12 [2020-12-09 19:43:46,641 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-09 19:43:46,641 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-09 19:43:46,641 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-09 19:43:46,642 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-09 19:43:46,642 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-12-09 19:43:46,642 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-12-09 19:43:46,642 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-09 19:43:46,642 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-09 19:43:46,642 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-09 19:43:46,642 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-09 19:43:46,642 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2020-12-09 19:43:46,643 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2020-12-09 19:43:46,643 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-09 19:43:46,643 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-12-09 19:43:46,643 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-12-09 19:43:46,643 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_f0f63ee1-418f-4716-a5df-d391d1e61918/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_f0f63ee1-418f-4716-a5df-d391d1e61918/bin/utaipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 84f62959dc20df3dcecaea8b03619fc02cb1358b [2020-12-09 19:43:46,868 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-09 19:43:46,883 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-09 19:43:46,885 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-09 19:43:46,886 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-09 19:43:46,886 INFO L275 PluginConnector]: CDTParser initialized [2020-12-09 19:43:46,887 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_f0f63ee1-418f-4716-a5df-d391d1e61918/bin/utaipan/../../sv-benchmarks/c/ldv-sets/test_mutex_double_lock.i [2020-12-09 19:43:46,926 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_f0f63ee1-418f-4716-a5df-d391d1e61918/bin/utaipan/data/896411708/9935f55bf1234f6db25cf204ff0299e3/FLAGa36414171 [2020-12-09 19:43:47,465 INFO L306 CDTParser]: Found 1 translation units. [2020-12-09 19:43:47,465 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_f0f63ee1-418f-4716-a5df-d391d1e61918/sv-benchmarks/c/ldv-sets/test_mutex_double_lock.i [2020-12-09 19:43:47,475 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_f0f63ee1-418f-4716-a5df-d391d1e61918/bin/utaipan/data/896411708/9935f55bf1234f6db25cf204ff0299e3/FLAGa36414171 [2020-12-09 19:43:47,959 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_f0f63ee1-418f-4716-a5df-d391d1e61918/bin/utaipan/data/896411708/9935f55bf1234f6db25cf204ff0299e3 [2020-12-09 19:43:47,962 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-09 19:43:47,963 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-09 19:43:47,964 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-09 19:43:47,964 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-09 19:43:47,967 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-09 19:43:47,968 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 07:43:47" (1/1) ... [2020-12-09 19:43:47,969 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@e27111e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 07:43:47, skipping insertion in model container [2020-12-09 19:43:47,969 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 07:43:47" (1/1) ... [2020-12-09 19:43:47,974 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-09 19:43:48,006 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-09 19:43:48,219 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud-vcloud-master/worker/run_dir_f0f63ee1-418f-4716-a5df-d391d1e61918/sv-benchmarks/c/ldv-sets/test_mutex_double_lock.i[25842,25855] [2020-12-09 19:43:48,221 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud-vcloud-master/worker/run_dir_f0f63ee1-418f-4716-a5df-d391d1e61918/sv-benchmarks/c/ldv-sets/test_mutex_double_lock.i[25967,25980] [2020-12-09 19:43:48,222 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud-vcloud-master/worker/run_dir_f0f63ee1-418f-4716-a5df-d391d1e61918/sv-benchmarks/c/ldv-sets/test_mutex_double_lock.i[26082,26095] [2020-12-09 19:43:48,224 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-09 19:43:48,234 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2020-12-09 19:43:48,239 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-09 19:43:48,267 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud-vcloud-master/worker/run_dir_f0f63ee1-418f-4716-a5df-d391d1e61918/sv-benchmarks/c/ldv-sets/test_mutex_double_lock.i[25842,25855] [2020-12-09 19:43:48,268 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud-vcloud-master/worker/run_dir_f0f63ee1-418f-4716-a5df-d391d1e61918/sv-benchmarks/c/ldv-sets/test_mutex_double_lock.i[25967,25980] [2020-12-09 19:43:48,268 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud-vcloud-master/worker/run_dir_f0f63ee1-418f-4716-a5df-d391d1e61918/sv-benchmarks/c/ldv-sets/test_mutex_double_lock.i[26082,26095] [2020-12-09 19:43:48,269 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-09 19:43:48,271 INFO L203 MainTranslator]: Completed pre-run [2020-12-09 19:43:48,303 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud-vcloud-master/worker/run_dir_f0f63ee1-418f-4716-a5df-d391d1e61918/sv-benchmarks/c/ldv-sets/test_mutex_double_lock.i[25842,25855] [2020-12-09 19:43:48,303 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud-vcloud-master/worker/run_dir_f0f63ee1-418f-4716-a5df-d391d1e61918/sv-benchmarks/c/ldv-sets/test_mutex_double_lock.i[25967,25980] [2020-12-09 19:43:48,304 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud-vcloud-master/worker/run_dir_f0f63ee1-418f-4716-a5df-d391d1e61918/sv-benchmarks/c/ldv-sets/test_mutex_double_lock.i[26082,26095] [2020-12-09 19:43:48,305 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-09 19:43:48,361 INFO L208 MainTranslator]: Completed translation [2020-12-09 19:43:48,361 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 07:43:48 WrapperNode [2020-12-09 19:43:48,362 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-09 19:43:48,363 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-09 19:43:48,363 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-09 19:43:48,363 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-09 19:43:48,370 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 07:43:48" (1/1) ... [2020-12-09 19:43:48,386 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 07:43:48" (1/1) ... [2020-12-09 19:43:48,413 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-09 19:43:48,413 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-09 19:43:48,413 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-09 19:43:48,413 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-09 19:43:48,419 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 07:43:48" (1/1) ... [2020-12-09 19:43:48,420 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 07:43:48" (1/1) ... [2020-12-09 19:43:48,425 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 07:43:48" (1/1) ... [2020-12-09 19:43:48,425 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 07:43:48" (1/1) ... [2020-12-09 19:43:48,444 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 07:43:48" (1/1) ... [2020-12-09 19:43:48,449 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 07:43:48" (1/1) ... [2020-12-09 19:43:48,452 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 07:43:48" (1/1) ... [2020-12-09 19:43:48,457 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-09 19:43:48,457 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-09 19:43:48,457 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-09 19:43:48,457 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-09 19:43:48,458 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 07:43:48" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f0f63ee1-418f-4716-a5df-d391d1e61918/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 [2020-12-09 19:43:48,510 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-12-09 19:43:48,510 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-12-09 19:43:48,510 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-09 19:43:48,510 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-12-09 19:43:48,510 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-12-09 19:43:48,510 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2020-12-09 19:43:48,510 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2020-12-09 19:43:48,510 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-09 19:43:48,510 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-09 19:43:49,211 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-09 19:43:49,211 INFO L299 CfgBuilder]: Removed 82 assume(true) statements. [2020-12-09 19:43:49,212 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 07:43:49 BoogieIcfgContainer [2020-12-09 19:43:49,212 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-09 19:43:49,216 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-12-09 19:43:49,216 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-12-09 19:43:49,218 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-12-09 19:43:49,219 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.12 07:43:47" (1/3) ... [2020-12-09 19:43:49,219 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3123b1d6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 07:43:49, skipping insertion in model container [2020-12-09 19:43:49,219 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 07:43:48" (2/3) ... [2020-12-09 19:43:49,220 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3123b1d6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 07:43:49, skipping insertion in model container [2020-12-09 19:43:49,220 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 07:43:49" (3/3) ... [2020-12-09 19:43:49,221 INFO L111 eAbstractionObserver]: Analyzing ICFG test_mutex_double_lock.i [2020-12-09 19:43:49,230 INFO L180 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-12-09 19:43:49,233 INFO L192 ceAbstractionStarter]: Appying trace abstraction to program that has 5 error locations. [2020-12-09 19:43:49,240 INFO L253 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2020-12-09 19:43:49,256 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-12-09 19:43:49,256 INFO L378 AbstractCegarLoop]: Hoare is true [2020-12-09 19:43:49,256 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-12-09 19:43:49,256 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-12-09 19:43:49,256 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-12-09 19:43:49,257 INFO L382 AbstractCegarLoop]: Difference is false [2020-12-09 19:43:49,257 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-12-09 19:43:49,257 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-12-09 19:43:49,267 INFO L276 IsEmpty]: Start isEmpty. Operand 88 states. [2020-12-09 19:43:49,270 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-12-09 19:43:49,270 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 19:43:49,271 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-09 19:43:49,271 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]=== [2020-12-09 19:43:49,275 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 19:43:49,275 INFO L82 PathProgramCache]: Analyzing trace with hash 912087840, now seen corresponding path program 1 times [2020-12-09 19:43:49,283 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-12-09 19:43:49,284 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [336826804] [2020-12-09 19:43:49,284 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f0f63ee1-418f-4716-a5df-d391d1e61918/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 [2020-12-09 19:43:49,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 19:43:49,368 INFO L263 TraceCheckSpWp]: Trace formula consists of 82 conjuncts, 1 conjunts are in the unsatisfiable core [2020-12-09 19:43:49,371 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-09 19:43:49,394 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-09 19:43:49,395 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-12-09 19:43:49,395 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [336826804] [2020-12-09 19:43:49,396 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-09 19:43:49,396 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-09 19:43:49,396 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [950568375] [2020-12-09 19:43:49,399 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-12-09 19:43:49,400 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-12-09 19:43:49,408 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-12-09 19:43:49,408 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-12-09 19:43:49,410 INFO L87 Difference]: Start difference. First operand 88 states. Second operand 2 states. [2020-12-09 19:43:49,426 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 19:43:49,427 INFO L93 Difference]: Finished difference Result 172 states and 239 transitions. [2020-12-09 19:43:49,427 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-12-09 19:43:49,428 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 14 [2020-12-09 19:43:49,428 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 19:43:49,434 INFO L225 Difference]: With dead ends: 172 [2020-12-09 19:43:49,434 INFO L226 Difference]: Without dead ends: 84 [2020-12-09 19:43:49,436 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-12-09 19:43:49,447 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 84 states. [2020-12-09 19:43:49,459 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 84 to 84. [2020-12-09 19:43:49,460 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 84 states. [2020-12-09 19:43:49,462 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 84 states to 84 states and 101 transitions. [2020-12-09 19:43:49,463 INFO L78 Accepts]: Start accepts. Automaton has 84 states and 101 transitions. Word has length 14 [2020-12-09 19:43:49,463 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 19:43:49,463 INFO L481 AbstractCegarLoop]: Abstraction has 84 states and 101 transitions. [2020-12-09 19:43:49,463 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-12-09 19:43:49,463 INFO L276 IsEmpty]: Start isEmpty. Operand 84 states and 101 transitions. [2020-12-09 19:43:49,464 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-12-09 19:43:49,464 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 19:43:49,464 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-09 19:43:49,665 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2020-12-09 19:43:49,665 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]=== [2020-12-09 19:43:49,666 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 19:43:49,666 INFO L82 PathProgramCache]: Analyzing trace with hash 793647061, now seen corresponding path program 1 times [2020-12-09 19:43:49,667 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-12-09 19:43:49,667 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [642885425] [2020-12-09 19:43:49,667 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f0f63ee1-418f-4716-a5df-d391d1e61918/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 [2020-12-09 19:43:49,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 19:43:49,746 INFO L263 TraceCheckSpWp]: Trace formula consists of 83 conjuncts, 3 conjunts are in the unsatisfiable core [2020-12-09 19:43:49,747 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-09 19:43:49,781 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-09 19:43:49,781 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-12-09 19:43:49,781 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [642885425] [2020-12-09 19:43:49,782 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-09 19:43:49,782 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-12-09 19:43:49,782 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [118849875] [2020-12-09 19:43:49,783 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-09 19:43:49,783 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-12-09 19:43:49,783 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-09 19:43:49,783 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-12-09 19:43:49,784 INFO L87 Difference]: Start difference. First operand 84 states and 101 transitions. Second operand 4 states. [2020-12-09 19:43:49,909 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 19:43:49,910 INFO L93 Difference]: Finished difference Result 135 states and 157 transitions. [2020-12-09 19:43:49,910 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-12-09 19:43:49,910 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 14 [2020-12-09 19:43:49,910 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 19:43:49,912 INFO L225 Difference]: With dead ends: 135 [2020-12-09 19:43:49,912 INFO L226 Difference]: Without dead ends: 131 [2020-12-09 19:43:49,912 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-12-09 19:43:49,913 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 131 states. [2020-12-09 19:43:49,920 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 131 to 88. [2020-12-09 19:43:49,920 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 88 states. [2020-12-09 19:43:49,921 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 88 states to 88 states and 105 transitions. [2020-12-09 19:43:49,921 INFO L78 Accepts]: Start accepts. Automaton has 88 states and 105 transitions. Word has length 14 [2020-12-09 19:43:49,921 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 19:43:49,921 INFO L481 AbstractCegarLoop]: Abstraction has 88 states and 105 transitions. [2020-12-09 19:43:49,922 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-09 19:43:49,922 INFO L276 IsEmpty]: Start isEmpty. Operand 88 states and 105 transitions. [2020-12-09 19:43:49,922 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-12-09 19:43:49,922 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 19:43:49,922 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-09 19:43:50,123 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2020-12-09 19:43:50,125 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]=== [2020-12-09 19:43:50,127 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 19:43:50,127 INFO L82 PathProgramCache]: Analyzing trace with hash 795255775, now seen corresponding path program 1 times [2020-12-09 19:43:50,129 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-12-09 19:43:50,130 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [744590474] [2020-12-09 19:43:50,130 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f0f63ee1-418f-4716-a5df-d391d1e61918/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 [2020-12-09 19:43:50,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 19:43:50,278 INFO L263 TraceCheckSpWp]: Trace formula consists of 86 conjuncts, 12 conjunts are in the unsatisfiable core [2020-12-09 19:43:50,280 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-09 19:43:50,345 INFO L382 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 [2020-12-09 19:43:50,346 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-09 19:43:50,355 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-09 19:43:50,360 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-09 19:43:50,360 INFO L382 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 [2020-12-09 19:43:50,361 INFO L547 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-12-09 19:43:50,367 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-09 19:43:50,368 INFO L547 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-12-09 19:43:50,369 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:34, output treesize:12 [2020-12-09 19:43:50,392 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-09 19:43:50,392 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-12-09 19:43:50,393 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [744590474] [2020-12-09 19:43:50,393 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-09 19:43:50,393 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-09 19:43:50,393 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1565228583] [2020-12-09 19:43:50,393 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-09 19:43:50,393 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-12-09 19:43:50,394 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-09 19:43:50,394 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-12-09 19:43:50,394 INFO L87 Difference]: Start difference. First operand 88 states and 105 transitions. Second operand 4 states. [2020-12-09 19:43:51,737 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 19:43:51,737 INFO L93 Difference]: Finished difference Result 219 states and 262 transitions. [2020-12-09 19:43:51,738 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-09 19:43:51,738 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 14 [2020-12-09 19:43:51,738 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 19:43:51,740 INFO L225 Difference]: With dead ends: 219 [2020-12-09 19:43:51,740 INFO L226 Difference]: Without dead ends: 140 [2020-12-09 19:43:51,741 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-12-09 19:43:51,742 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 140 states. [2020-12-09 19:43:51,752 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 140 to 101. [2020-12-09 19:43:51,752 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 101 states. [2020-12-09 19:43:51,754 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 101 states to 101 states and 118 transitions. [2020-12-09 19:43:51,754 INFO L78 Accepts]: Start accepts. Automaton has 101 states and 118 transitions. Word has length 14 [2020-12-09 19:43:51,754 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 19:43:51,754 INFO L481 AbstractCegarLoop]: Abstraction has 101 states and 118 transitions. [2020-12-09 19:43:51,754 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-09 19:43:51,754 INFO L276 IsEmpty]: Start isEmpty. Operand 101 states and 118 transitions. [2020-12-09 19:43:51,755 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2020-12-09 19:43:51,755 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 19:43:51,756 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] [2020-12-09 19:43:51,956 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 mathsat -unsat_core_generation=3 [2020-12-09 19:43:51,958 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]=== [2020-12-09 19:43:51,959 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 19:43:51,960 INFO L82 PathProgramCache]: Analyzing trace with hash 1115638045, now seen corresponding path program 1 times [2020-12-09 19:43:51,961 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-12-09 19:43:51,962 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1518831109] [2020-12-09 19:43:51,962 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f0f63ee1-418f-4716-a5df-d391d1e61918/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 [2020-12-09 19:43:52,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-09 19:43:52,224 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-09 19:43:52,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-09 19:43:52,331 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-09 19:43:52,401 INFO L173 FreeRefinementEngine]: Strategy WALRUS found a feasible trace [2020-12-09 19:43:52,402 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-12-09 19:43:52,602 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 mathsat -unsat_core_generation=3 [2020-12-09 19:43:52,671 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.12 07:43:52 BoogieIcfgContainer [2020-12-09 19:43:52,671 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-12-09 19:43:52,672 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-12-09 19:43:52,672 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-12-09 19:43:52,672 INFO L275 PluginConnector]: Witness Printer initialized [2020-12-09 19:43:52,672 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 07:43:49" (3/4) ... [2020-12-09 19:43:52,673 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2020-12-09 19:43:52,713 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_f0f63ee1-418f-4716-a5df-d391d1e61918/bin/utaipan/witness.graphml [2020-12-09 19:43:52,713 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-12-09 19:43:52,714 INFO L168 Benchmark]: Toolchain (without parser) took 4750.33 ms. Allocated memory was 50.3 MB in the beginning and 98.6 MB in the end (delta: 48.2 MB). Free memory was 28.4 MB in the beginning and 74.7 MB in the end (delta: -46.2 MB). Peak memory consumption was 38.8 MB. Max. memory is 16.1 GB. [2020-12-09 19:43:52,714 INFO L168 Benchmark]: CDTParser took 0.16 ms. Allocated memory is still 50.3 MB. Free memory is still 32.4 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-12-09 19:43:52,714 INFO L168 Benchmark]: CACSL2BoogieTranslator took 397.82 ms. Allocated memory was 50.3 MB in the beginning and 67.1 MB in the end (delta: 16.8 MB). Free memory was 28.2 MB in the beginning and 35.9 MB in the end (delta: -7.7 MB). Peak memory consumption was 10.9 MB. Max. memory is 16.1 GB. [2020-12-09 19:43:52,715 INFO L168 Benchmark]: Boogie Procedure Inliner took 49.91 ms. Allocated memory is still 67.1 MB. Free memory was 35.9 MB in the beginning and 32.5 MB in the end (delta: 3.5 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2020-12-09 19:43:52,715 INFO L168 Benchmark]: Boogie Preprocessor took 43.51 ms. Allocated memory is still 67.1 MB. Free memory was 32.5 MB in the beginning and 46.2 MB in the end (delta: -13.7 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. [2020-12-09 19:43:52,715 INFO L168 Benchmark]: RCFGBuilder took 755.02 ms. Allocated memory is still 67.1 MB. Free memory was 46.2 MB in the beginning and 28.2 MB in the end (delta: 18.0 MB). Peak memory consumption was 21.1 MB. Max. memory is 16.1 GB. [2020-12-09 19:43:52,716 INFO L168 Benchmark]: TraceAbstraction took 3454.96 ms. Allocated memory is still 81.8 MB. Free memory was 59.0 MB in the beginning and 28.9 MB in the end (delta: 30.1 MB). Peak memory consumption was 28.6 MB. Max. memory is 16.1 GB. [2020-12-09 19:43:52,716 INFO L168 Benchmark]: Witness Printer took 41.38 ms. Allocated memory was 81.8 MB in the beginning and 98.6 MB in the end (delta: 16.8 MB). Free memory was 28.9 MB in the beginning and 74.7 MB in the end (delta: -45.7 MB). Peak memory consumption was 7.8 MB. Max. memory is 16.1 GB. [2020-12-09 19:43:52,718 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 50.3 MB. Free memory is still 32.4 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 397.82 ms. Allocated memory was 50.3 MB in the beginning and 67.1 MB in the end (delta: 16.8 MB). Free memory was 28.2 MB in the beginning and 35.9 MB in the end (delta: -7.7 MB). Peak memory consumption was 10.9 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 49.91 ms. Allocated memory is still 67.1 MB. Free memory was 35.9 MB in the beginning and 32.5 MB in the end (delta: 3.5 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 43.51 ms. Allocated memory is still 67.1 MB. Free memory was 32.5 MB in the beginning and 46.2 MB in the end (delta: -13.7 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. * RCFGBuilder took 755.02 ms. Allocated memory is still 67.1 MB. Free memory was 46.2 MB in the beginning and 28.2 MB in the end (delta: 18.0 MB). Peak memory consumption was 21.1 MB. Max. memory is 16.1 GB. * TraceAbstraction took 3454.96 ms. Allocated memory is still 81.8 MB. Free memory was 59.0 MB in the beginning and 28.9 MB in the end (delta: 30.1 MB). Peak memory consumption was 28.6 MB. Max. memory is 16.1 GB. * Witness Printer took 41.38 ms. Allocated memory was 81.8 MB in the beginning and 98.6 MB in the end (delta: 16.8 MB). Free memory was 28.9 MB in the beginning and 74.7 MB in the end (delta: -45.7 MB). Peak memory consumption was 7.8 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 669]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L665] struct ldv_list_head mutexes = { &(mutexes), &(mutexes) }; VAL [mutexes={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) [L669] reach_error() VAL [mutexes={2147483647:0}] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 88 locations, 5 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 3.3s, OverallIterations: 4, TraceHistogramMax: 1, AutomataDifference: 1.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 266 SDtfs, 165 SDslu, 281 SDs, 0 SdLazy, 105 SolverSat, 28 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 41 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=101occurred 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, 82 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 70 NumberOfCodeBlocks, 70 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 39 ConstructedInterpolants, 0 QuantifiedInterpolants, 2470 SizeOfPredicates, 13 NumberOfNonLiveVariables, 251 ConjunctsInSsa, 16 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 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...