./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_c56fe1f7-137e-4124-80ca-600ec2393cf5/bin/utaipan/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_c56fe1f7-137e-4124-80ca-600ec2393cf5/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_c56fe1f7-137e-4124-80ca-600ec2393cf5/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_c56fe1f7-137e-4124-80ca-600ec2393cf5/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-sets/test_mutex_double_lock.i -s /tmp/vcloud-vcloud-master/worker/run_dir_c56fe1f7-137e-4124-80ca-600ec2393cf5/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_c56fe1f7-137e-4124-80ca-600ec2393cf5/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_c56fe1f7-137e-4124-80ca-600ec2393cf5/bin/utaipan/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_c56fe1f7-137e-4124-80ca-600ec2393cf5/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_c56fe1f7-137e-4124-80ca-600ec2393cf5/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_c56fe1f7-137e-4124-80ca-600ec2393cf5/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-sets/test_mutex_double_lock.i -s /tmp/vcloud-vcloud-master/worker/run_dir_c56fe1f7-137e-4124-80ca-600ec2393cf5/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_c56fe1f7-137e-4124-80ca-600ec2393cf5/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 [2020-12-03 12:39:07,400 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-03 12:39:07,402 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-03 12:39:07,445 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-03 12:39:07,446 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-03 12:39:07,447 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-03 12:39:07,449 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-03 12:39:07,452 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-03 12:39:07,454 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-03 12:39:07,455 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-03 12:39:07,457 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-03 12:39:07,458 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-03 12:39:07,459 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-03 12:39:07,460 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-03 12:39:07,462 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-03 12:39:07,463 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-03 12:39:07,465 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-03 12:39:07,466 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-03 12:39:07,468 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-03 12:39:07,471 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-03 12:39:07,473 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-03 12:39:07,475 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-03 12:39:07,477 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-03 12:39:07,478 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-03 12:39:07,481 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-12-03 12:39:07,482 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-12-03 12:39:07,482 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-12-03 12:39:07,484 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-12-03 12:39:07,484 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-12-03 12:39:07,486 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-12-03 12:39:07,486 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-03 12:39:07,487 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-03 12:39:07,488 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-03 12:39:07,489 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-03 12:39:07,491 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-03 12:39:07,491 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-03 12:39:07,492 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-03 12:39:07,493 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-03 12:39:07,493 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-03 12:39:07,495 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-03 12:39:07,496 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-03 12:39:07,497 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_c56fe1f7-137e-4124-80ca-600ec2393cf5/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2020-12-03 12:39:07,554 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-03 12:39:07,557 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-03 12:39:07,559 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2020-12-03 12:39:07,560 INFO L138 SettingsManager]: * User list type=DISABLED [2020-12-03 12:39:07,561 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2020-12-03 12:39:07,561 INFO L138 SettingsManager]: * Explicit value domain=true [2020-12-03 12:39:07,561 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2020-12-03 12:39:07,561 INFO L138 SettingsManager]: * Octagon Domain=false [2020-12-03 12:39:07,562 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2020-12-03 12:39:07,562 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2020-12-03 12:39:07,563 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2020-12-03 12:39:07,563 INFO L138 SettingsManager]: * Interval Domain=false [2020-12-03 12:39:07,564 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2020-12-03 12:39:07,564 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2020-12-03 12:39:07,564 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2020-12-03 12:39:07,565 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-03 12:39:07,565 INFO L138 SettingsManager]: * sizeof long=4 [2020-12-03 12:39:07,566 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-12-03 12:39:07,566 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-12-03 12:39:07,566 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-03 12:39:07,566 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-03 12:39:07,567 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-03 12:39:07,567 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-03 12:39:07,567 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2020-12-03 12:39:07,567 INFO L138 SettingsManager]: * sizeof long double=12 [2020-12-03 12:39:07,567 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-03 12:39:07,568 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-03 12:39:07,568 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-03 12:39:07,568 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-03 12:39:07,569 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-12-03 12:39:07,569 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-03 12:39:07,569 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-03 12:39:07,570 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-03 12:39:07,570 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-03 12:39:07,570 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2020-12-03 12:39:07,570 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-12-03 12:39:07,571 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-03 12:39:07,571 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-12-03 12:39:07,571 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-12-03 12:39:07,571 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_c56fe1f7-137e-4124-80ca-600ec2393cf5/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_c56fe1f7-137e-4124-80ca-600ec2393cf5/bin/utaipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 84f62959dc20df3dcecaea8b03619fc02cb1358b [2020-12-03 12:39:07,868 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-03 12:39:07,899 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-03 12:39:07,904 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-03 12:39:07,905 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-03 12:39:07,906 INFO L275 PluginConnector]: CDTParser initialized [2020-12-03 12:39:07,907 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_c56fe1f7-137e-4124-80ca-600ec2393cf5/bin/utaipan/../../sv-benchmarks/c/ldv-sets/test_mutex_double_lock.i [2020-12-03 12:39:08,010 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_c56fe1f7-137e-4124-80ca-600ec2393cf5/bin/utaipan/data/e59fc6842/aa87f076597040aeb2b2b24fae36fe0a/FLAGe5470832c [2020-12-03 12:39:08,620 INFO L306 CDTParser]: Found 1 translation units. [2020-12-03 12:39:08,621 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_c56fe1f7-137e-4124-80ca-600ec2393cf5/sv-benchmarks/c/ldv-sets/test_mutex_double_lock.i [2020-12-03 12:39:08,648 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_c56fe1f7-137e-4124-80ca-600ec2393cf5/bin/utaipan/data/e59fc6842/aa87f076597040aeb2b2b24fae36fe0a/FLAGe5470832c [2020-12-03 12:39:08,848 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_c56fe1f7-137e-4124-80ca-600ec2393cf5/bin/utaipan/data/e59fc6842/aa87f076597040aeb2b2b24fae36fe0a [2020-12-03 12:39:08,850 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-03 12:39:08,852 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-03 12:39:08,853 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-03 12:39:08,853 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-03 12:39:08,857 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-03 12:39:08,858 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.12 12:39:08" (1/1) ... [2020-12-03 12:39:08,860 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@12878583 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 12:39:08, skipping insertion in model container [2020-12-03 12:39:08,860 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.12 12:39:08" (1/1) ... [2020-12-03 12:39:08,868 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-03 12:39:08,914 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-03 12:39:09,310 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_c56fe1f7-137e-4124-80ca-600ec2393cf5/sv-benchmarks/c/ldv-sets/test_mutex_double_lock.i[25842,25855] [2020-12-03 12:39:09,322 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_c56fe1f7-137e-4124-80ca-600ec2393cf5/sv-benchmarks/c/ldv-sets/test_mutex_double_lock.i[25967,25980] [2020-12-03 12:39:09,327 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_c56fe1f7-137e-4124-80ca-600ec2393cf5/sv-benchmarks/c/ldv-sets/test_mutex_double_lock.i[26082,26095] [2020-12-03 12:39:09,333 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-03 12:39:09,353 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) [2020-12-03 12:39:09,354 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@180149ba and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 12:39:09, skipping insertion in model container [2020-12-03 12:39:09,355 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-03 12:39:09,355 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2020-12-03 12:39:09,358 INFO L168 Benchmark]: Toolchain (without parser) took 504.43 ms. Allocated memory is still 92.3 MB. Free memory was 69.6 MB in the beginning and 66.5 MB in the end (delta: 3.1 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2020-12-03 12:39:09,359 INFO L168 Benchmark]: CDTParser took 0.29 ms. Allocated memory is still 73.4 MB. Free memory is still 53.2 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-12-03 12:39:09,361 INFO L168 Benchmark]: CACSL2BoogieTranslator took 501.92 ms. Allocated memory is still 92.3 MB. Free memory was 69.4 MB in the beginning and 66.7 MB in the end (delta: 2.7 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2020-12-03 12:39:09,364 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.29 ms. Allocated memory is still 73.4 MB. Free memory is still 53.2 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 501.92 ms. Allocated memory is still 92.3 MB. Free memory was 69.4 MB in the beginning and 66.7 MB in the end (delta: 2.7 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 [2020-12-03 12:39:11,678 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-03 12:39:11,681 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-03 12:39:11,732 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-03 12:39:11,732 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-03 12:39:11,739 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-03 12:39:11,742 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-03 12:39:11,747 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-03 12:39:11,750 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-03 12:39:11,759 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-03 12:39:11,761 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-03 12:39:11,766 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-03 12:39:11,767 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-03 12:39:11,770 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-03 12:39:11,772 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-03 12:39:11,774 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-03 12:39:11,777 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-03 12:39:11,783 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-03 12:39:11,786 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-03 12:39:11,791 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-03 12:39:11,796 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-03 12:39:11,798 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-03 12:39:11,803 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-03 12:39:11,805 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-03 12:39:11,810 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-12-03 12:39:11,814 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-12-03 12:39:11,814 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-12-03 12:39:11,817 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-12-03 12:39:11,817 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-12-03 12:39:11,819 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-12-03 12:39:11,819 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-03 12:39:11,821 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-03 12:39:11,823 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-03 12:39:11,824 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-03 12:39:11,825 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-03 12:39:11,826 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-03 12:39:11,827 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-03 12:39:11,828 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-03 12:39:11,828 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-03 12:39:11,830 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-03 12:39:11,831 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-03 12:39:11,832 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_c56fe1f7-137e-4124-80ca-600ec2393cf5/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2020-12-03 12:39:11,880 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-03 12:39:11,880 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-03 12:39:11,882 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2020-12-03 12:39:11,883 INFO L138 SettingsManager]: * User list type=DISABLED [2020-12-03 12:39:11,883 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2020-12-03 12:39:11,883 INFO L138 SettingsManager]: * Explicit value domain=true [2020-12-03 12:39:11,883 INFO L138 SettingsManager]: * Octagon Domain=false [2020-12-03 12:39:11,884 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2020-12-03 12:39:11,884 INFO L138 SettingsManager]: * Interval Domain=false [2020-12-03 12:39:11,885 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-03 12:39:11,887 INFO L138 SettingsManager]: * sizeof long=4 [2020-12-03 12:39:11,887 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-12-03 12:39:11,887 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-03 12:39:11,887 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-03 12:39:11,888 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-03 12:39:11,888 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-03 12:39:11,888 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2020-12-03 12:39:11,888 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2020-12-03 12:39:11,888 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2020-12-03 12:39:11,889 INFO L138 SettingsManager]: * sizeof long double=12 [2020-12-03 12:39:11,889 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-03 12:39:11,889 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-03 12:39:11,889 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-03 12:39:11,890 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-03 12:39:11,890 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-12-03 12:39:11,890 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-12-03 12:39:11,890 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-03 12:39:11,911 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-03 12:39:11,911 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-03 12:39:11,911 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-03 12:39:11,912 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2020-12-03 12:39:11,912 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2020-12-03 12:39:11,912 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-03 12:39:11,912 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-12-03 12:39:11,913 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-12-03 12:39:11,913 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_c56fe1f7-137e-4124-80ca-600ec2393cf5/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_c56fe1f7-137e-4124-80ca-600ec2393cf5/bin/utaipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 84f62959dc20df3dcecaea8b03619fc02cb1358b [2020-12-03 12:39:12,309 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-03 12:39:12,337 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-03 12:39:12,340 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-03 12:39:12,341 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-03 12:39:12,342 INFO L275 PluginConnector]: CDTParser initialized [2020-12-03 12:39:12,343 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_c56fe1f7-137e-4124-80ca-600ec2393cf5/bin/utaipan/../../sv-benchmarks/c/ldv-sets/test_mutex_double_lock.i [2020-12-03 12:39:12,414 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_c56fe1f7-137e-4124-80ca-600ec2393cf5/bin/utaipan/data/738ddbb4b/f9a33c90e0d54ed2a0268ec8f3402895/FLAG791b74c05 [2020-12-03 12:39:13,122 INFO L306 CDTParser]: Found 1 translation units. [2020-12-03 12:39:13,122 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_c56fe1f7-137e-4124-80ca-600ec2393cf5/sv-benchmarks/c/ldv-sets/test_mutex_double_lock.i [2020-12-03 12:39:13,144 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_c56fe1f7-137e-4124-80ca-600ec2393cf5/bin/utaipan/data/738ddbb4b/f9a33c90e0d54ed2a0268ec8f3402895/FLAG791b74c05 [2020-12-03 12:39:13,381 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_c56fe1f7-137e-4124-80ca-600ec2393cf5/bin/utaipan/data/738ddbb4b/f9a33c90e0d54ed2a0268ec8f3402895 [2020-12-03 12:39:13,384 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-03 12:39:13,385 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-03 12:39:13,387 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-03 12:39:13,387 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-03 12:39:13,392 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-03 12:39:13,393 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.12 12:39:13" (1/1) ... [2020-12-03 12:39:13,395 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2bbc80b2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 12:39:13, skipping insertion in model container [2020-12-03 12:39:13,395 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.12 12:39:13" (1/1) ... [2020-12-03 12:39:13,405 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-03 12:39:13,476 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-03 12:39:13,894 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_c56fe1f7-137e-4124-80ca-600ec2393cf5/sv-benchmarks/c/ldv-sets/test_mutex_double_lock.i[25842,25855] [2020-12-03 12:39:13,901 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_c56fe1f7-137e-4124-80ca-600ec2393cf5/sv-benchmarks/c/ldv-sets/test_mutex_double_lock.i[25967,25980] [2020-12-03 12:39:13,907 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_c56fe1f7-137e-4124-80ca-600ec2393cf5/sv-benchmarks/c/ldv-sets/test_mutex_double_lock.i[26082,26095] [2020-12-03 12:39:13,913 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-03 12:39:13,929 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2020-12-03 12:39:13,941 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-03 12:39:13,992 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_c56fe1f7-137e-4124-80ca-600ec2393cf5/sv-benchmarks/c/ldv-sets/test_mutex_double_lock.i[25842,25855] [2020-12-03 12:39:13,993 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_c56fe1f7-137e-4124-80ca-600ec2393cf5/sv-benchmarks/c/ldv-sets/test_mutex_double_lock.i[25967,25980] [2020-12-03 12:39:13,994 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_c56fe1f7-137e-4124-80ca-600ec2393cf5/sv-benchmarks/c/ldv-sets/test_mutex_double_lock.i[26082,26095] [2020-12-03 12:39:13,996 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-03 12:39:13,999 INFO L203 MainTranslator]: Completed pre-run [2020-12-03 12:39:14,064 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_c56fe1f7-137e-4124-80ca-600ec2393cf5/sv-benchmarks/c/ldv-sets/test_mutex_double_lock.i[25842,25855] [2020-12-03 12:39:14,066 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_c56fe1f7-137e-4124-80ca-600ec2393cf5/sv-benchmarks/c/ldv-sets/test_mutex_double_lock.i[25967,25980] [2020-12-03 12:39:14,068 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_c56fe1f7-137e-4124-80ca-600ec2393cf5/sv-benchmarks/c/ldv-sets/test_mutex_double_lock.i[26082,26095] [2020-12-03 12:39:14,071 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-03 12:39:14,178 INFO L208 MainTranslator]: Completed translation [2020-12-03 12:39:14,178 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 12:39:14 WrapperNode [2020-12-03 12:39:14,178 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-03 12:39:14,179 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-03 12:39:14,179 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-03 12:39:14,179 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-03 12:39:14,186 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 12:39:14" (1/1) ... [2020-12-03 12:39:14,221 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 12:39:14" (1/1) ... [2020-12-03 12:39:14,260 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-03 12:39:14,261 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-03 12:39:14,261 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-03 12:39:14,261 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-03 12:39:14,271 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 12:39:14" (1/1) ... [2020-12-03 12:39:14,271 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 12:39:14" (1/1) ... [2020-12-03 12:39:14,278 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 12:39:14" (1/1) ... [2020-12-03 12:39:14,278 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 12:39:14" (1/1) ... [2020-12-03 12:39:14,300 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 12:39:14" (1/1) ... [2020-12-03 12:39:14,307 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 12:39:14" (1/1) ... [2020-12-03 12:39:14,312 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 12:39:14" (1/1) ... [2020-12-03 12:39:14,328 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-03 12:39:14,328 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-03 12:39:14,329 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-03 12:39:14,329 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-03 12:39:14,329 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 12:39:14" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c56fe1f7-137e-4124-80ca-600ec2393cf5/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 [2020-12-03 12:39:14,418 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-12-03 12:39:14,419 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-12-03 12:39:14,419 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-03 12:39:14,419 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-12-03 12:39:14,419 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-12-03 12:39:14,419 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2020-12-03 12:39:14,419 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2020-12-03 12:39:14,420 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-03 12:39:14,420 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-03 12:39:15,631 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-03 12:39:15,631 INFO L299 CfgBuilder]: Removed 82 assume(true) statements. [2020-12-03 12:39:15,633 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.12 12:39:15 BoogieIcfgContainer [2020-12-03 12:39:15,633 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-03 12:39:15,635 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-12-03 12:39:15,635 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-12-03 12:39:15,638 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-12-03 12:39:15,639 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.12 12:39:13" (1/3) ... [2020-12-03 12:39:15,639 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3af1f755 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.12 12:39:15, skipping insertion in model container [2020-12-03 12:39:15,640 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 12:39:14" (2/3) ... [2020-12-03 12:39:15,640 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3af1f755 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.12 12:39:15, skipping insertion in model container [2020-12-03 12:39:15,640 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.12 12:39:15" (3/3) ... [2020-12-03 12:39:15,642 INFO L111 eAbstractionObserver]: Analyzing ICFG test_mutex_double_lock.i [2020-12-03 12:39:15,656 INFO L180 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-12-03 12:39:15,660 INFO L192 ceAbstractionStarter]: Appying trace abstraction to program that has 5 error locations. [2020-12-03 12:39:15,671 INFO L253 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2020-12-03 12:39:15,696 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-12-03 12:39:15,697 INFO L378 AbstractCegarLoop]: Hoare is true [2020-12-03 12:39:15,697 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-12-03 12:39:15,697 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-12-03 12:39:15,697 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-12-03 12:39:15,697 INFO L382 AbstractCegarLoop]: Difference is false [2020-12-03 12:39:15,697 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-12-03 12:39:15,698 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-12-03 12:39:15,714 INFO L276 IsEmpty]: Start isEmpty. Operand 88 states. [2020-12-03 12:39:15,719 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-12-03 12:39:15,719 INFO L414 BasicCegarLoop]: Found error trace [2020-12-03 12:39:15,720 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-03 12:39:15,720 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]=== [2020-12-03 12:39:15,726 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-03 12:39:15,727 INFO L82 PathProgramCache]: Analyzing trace with hash 912087840, now seen corresponding path program 1 times [2020-12-03 12:39:15,739 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-12-03 12:39:15,740 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [802681929] [2020-12-03 12:39:15,740 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c56fe1f7-137e-4124-80ca-600ec2393cf5/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 [2020-12-03 12:39:15,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-03 12:39:15,902 INFO L263 TraceCheckSpWp]: Trace formula consists of 82 conjuncts, 1 conjunts are in the unsatisfiable core [2020-12-03 12:39:15,908 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-03 12:39:15,946 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-03 12:39:15,946 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-12-03 12:39:15,947 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [802681929] [2020-12-03 12:39:15,948 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-03 12:39:15,948 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-03 12:39:15,949 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1682944630] [2020-12-03 12:39:15,953 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-12-03 12:39:15,954 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-12-03 12:39:15,966 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-12-03 12:39:15,973 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-12-03 12:39:15,975 INFO L87 Difference]: Start difference. First operand 88 states. Second operand 2 states. [2020-12-03 12:39:16,017 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-03 12:39:16,017 INFO L93 Difference]: Finished difference Result 172 states and 239 transitions. [2020-12-03 12:39:16,017 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-12-03 12:39:16,019 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 14 [2020-12-03 12:39:16,019 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-03 12:39:16,029 INFO L225 Difference]: With dead ends: 172 [2020-12-03 12:39:16,030 INFO L226 Difference]: Without dead ends: 84 [2020-12-03 12:39:16,034 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 [2020-12-03 12:39:16,052 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 84 states. [2020-12-03 12:39:16,082 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 84 to 84. [2020-12-03 12:39:16,083 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 84 states. [2020-12-03 12:39:16,086 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 84 states to 84 states and 101 transitions. [2020-12-03 12:39:16,087 INFO L78 Accepts]: Start accepts. Automaton has 84 states and 101 transitions. Word has length 14 [2020-12-03 12:39:16,088 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-03 12:39:16,088 INFO L481 AbstractCegarLoop]: Abstraction has 84 states and 101 transitions. [2020-12-03 12:39:16,088 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-12-03 12:39:16,088 INFO L276 IsEmpty]: Start isEmpty. Operand 84 states and 101 transitions. [2020-12-03 12:39:16,088 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-12-03 12:39:16,089 INFO L414 BasicCegarLoop]: Found error trace [2020-12-03 12:39:16,089 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-03 12:39:16,293 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2020-12-03 12:39:16,294 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]=== [2020-12-03 12:39:16,296 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-03 12:39:16,296 INFO L82 PathProgramCache]: Analyzing trace with hash 793647061, now seen corresponding path program 1 times [2020-12-03 12:39:16,297 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-12-03 12:39:16,297 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [409716627] [2020-12-03 12:39:16,298 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c56fe1f7-137e-4124-80ca-600ec2393cf5/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 [2020-12-03 12:39:16,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-03 12:39:16,429 INFO L263 TraceCheckSpWp]: Trace formula consists of 83 conjuncts, 3 conjunts are in the unsatisfiable core [2020-12-03 12:39:16,430 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-03 12:39:16,483 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-03 12:39:16,483 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-12-03 12:39:16,484 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [409716627] [2020-12-03 12:39:16,485 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-03 12:39:16,486 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-12-03 12:39:16,486 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1150838340] [2020-12-03 12:39:16,487 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-03 12:39:16,487 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-12-03 12:39:16,490 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-03 12:39:16,490 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-12-03 12:39:16,491 INFO L87 Difference]: Start difference. First operand 84 states and 101 transitions. Second operand 4 states. [2020-12-03 12:39:16,704 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-03 12:39:16,704 INFO L93 Difference]: Finished difference Result 135 states and 157 transitions. [2020-12-03 12:39:16,706 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-12-03 12:39:16,708 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 14 [2020-12-03 12:39:16,709 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-03 12:39:16,712 INFO L225 Difference]: With dead ends: 135 [2020-12-03 12:39:16,714 INFO L226 Difference]: Without dead ends: 131 [2020-12-03 12:39:16,715 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 [2020-12-03 12:39:16,716 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 131 states. [2020-12-03 12:39:16,725 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 131 to 88. [2020-12-03 12:39:16,727 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 88 states. [2020-12-03 12:39:16,728 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 88 states to 88 states and 105 transitions. [2020-12-03 12:39:16,729 INFO L78 Accepts]: Start accepts. Automaton has 88 states and 105 transitions. Word has length 14 [2020-12-03 12:39:16,730 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-03 12:39:16,730 INFO L481 AbstractCegarLoop]: Abstraction has 88 states and 105 transitions. [2020-12-03 12:39:16,730 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-03 12:39:16,730 INFO L276 IsEmpty]: Start isEmpty. Operand 88 states and 105 transitions. [2020-12-03 12:39:16,732 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-12-03 12:39:16,732 INFO L414 BasicCegarLoop]: Found error trace [2020-12-03 12:39:16,732 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-03 12:39:16,945 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2020-12-03 12:39:16,949 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]=== [2020-12-03 12:39:16,950 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-03 12:39:16,950 INFO L82 PathProgramCache]: Analyzing trace with hash 795255775, now seen corresponding path program 1 times [2020-12-03 12:39:16,951 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-12-03 12:39:16,951 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [316477406] [2020-12-03 12:39:16,951 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c56fe1f7-137e-4124-80ca-600ec2393cf5/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 [2020-12-03 12:39:17,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-03 12:39:17,061 INFO L263 TraceCheckSpWp]: Trace formula consists of 86 conjuncts, 12 conjunts are in the unsatisfiable core [2020-12-03 12:39:17,063 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-03 12:39:17,156 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 [2020-12-03 12:39:17,159 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-03 12:39:17,172 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-03 12:39:17,178 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-03 12:39:17,179 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 [2020-12-03 12:39:17,180 INFO L547 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-12-03 12:39:17,189 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-03 12:39:17,190 INFO L547 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-12-03 12:39:17,191 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:34, output treesize:12 [2020-12-03 12:39:17,224 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-03 12:39:17,224 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-12-03 12:39:17,225 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [316477406] [2020-12-03 12:39:17,225 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-03 12:39:17,225 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-03 12:39:17,225 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [342146085] [2020-12-03 12:39:17,226 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-03 12:39:17,226 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-12-03 12:39:17,236 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-03 12:39:17,240 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-12-03 12:39:17,241 INFO L87 Difference]: Start difference. First operand 88 states and 105 transitions. Second operand 4 states. [2020-12-03 12:39:19,029 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-03 12:39:19,029 INFO L93 Difference]: Finished difference Result 219 states and 262 transitions. [2020-12-03 12:39:19,030 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-03 12:39:19,030 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 14 [2020-12-03 12:39:19,031 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-03 12:39:19,032 INFO L225 Difference]: With dead ends: 219 [2020-12-03 12:39:19,032 INFO L226 Difference]: Without dead ends: 140 [2020-12-03 12:39:19,033 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 [2020-12-03 12:39:19,034 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 140 states. [2020-12-03 12:39:19,045 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 140 to 101. [2020-12-03 12:39:19,046 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 101 states. [2020-12-03 12:39:19,047 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 101 states to 101 states and 118 transitions. [2020-12-03 12:39:19,047 INFO L78 Accepts]: Start accepts. Automaton has 101 states and 118 transitions. Word has length 14 [2020-12-03 12:39:19,047 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-03 12:39:19,047 INFO L481 AbstractCegarLoop]: Abstraction has 101 states and 118 transitions. [2020-12-03 12:39:19,048 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-03 12:39:19,048 INFO L276 IsEmpty]: Start isEmpty. Operand 101 states and 118 transitions. [2020-12-03 12:39:19,049 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2020-12-03 12:39:19,049 INFO L414 BasicCegarLoop]: Found error trace [2020-12-03 12:39:19,049 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] [2020-12-03 12:39:19,265 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 mathsat -unsat_core_generation=3 [2020-12-03 12:39:19,266 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]=== [2020-12-03 12:39:19,266 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-03 12:39:19,266 INFO L82 PathProgramCache]: Analyzing trace with hash 1115638045, now seen corresponding path program 1 times [2020-12-03 12:39:19,267 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-12-03 12:39:19,267 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1208866364] [2020-12-03 12:39:19,267 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c56fe1f7-137e-4124-80ca-600ec2393cf5/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 [2020-12-03 12:39:19,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-03 12:39:19,467 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-03 12:39:19,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-03 12:39:19,642 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-03 12:39:19,732 INFO L173 FreeRefinementEngine]: Strategy WALRUS found a feasible trace [2020-12-03 12:39:19,733 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-12-03 12:39:19,956 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 mathsat -unsat_core_generation=3 [2020-12-03 12:39:20,023 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 03.12 12:39:20 BoogieIcfgContainer [2020-12-03 12:39:20,024 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-12-03 12:39:20,024 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-12-03 12:39:20,025 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-12-03 12:39:20,025 INFO L275 PluginConnector]: Witness Printer initialized [2020-12-03 12:39:20,025 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.12 12:39:15" (3/4) ... [2020-12-03 12:39:20,027 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2020-12-03 12:39:20,105 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_c56fe1f7-137e-4124-80ca-600ec2393cf5/bin/utaipan/witness.graphml [2020-12-03 12:39:20,106 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-12-03 12:39:20,107 INFO L168 Benchmark]: Toolchain (without parser) took 6721.11 ms. Allocated memory was 69.2 MB in the beginning and 92.3 MB in the end (delta: 23.1 MB). Free memory was 50.1 MB in the beginning and 55.4 MB in the end (delta: -5.3 MB). Peak memory consumption was 18.1 MB. Max. memory is 16.1 GB. [2020-12-03 12:39:20,107 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 69.2 MB. Free memory is still 50.8 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-12-03 12:39:20,108 INFO L168 Benchmark]: CACSL2BoogieTranslator took 791.70 ms. Allocated memory is still 69.2 MB. Free memory was 49.8 MB in the beginning and 48.4 MB in the end (delta: 1.4 MB). Peak memory consumption was 22.3 MB. Max. memory is 16.1 GB. [2020-12-03 12:39:20,109 INFO L168 Benchmark]: Boogie Procedure Inliner took 81.05 ms. Allocated memory is still 69.2 MB. Free memory was 48.4 MB in the beginning and 45.1 MB in the end (delta: 3.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-12-03 12:39:20,109 INFO L168 Benchmark]: Boogie Preprocessor took 66.86 ms. Allocated memory is still 69.2 MB. Free memory was 45.1 MB in the beginning and 41.5 MB in the end (delta: 3.6 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2020-12-03 12:39:20,110 INFO L168 Benchmark]: RCFGBuilder took 1304.91 ms. Allocated memory was 69.2 MB in the beginning and 92.3 MB in the end (delta: 23.1 MB). Free memory was 41.5 MB in the beginning and 66.6 MB in the end (delta: -25.1 MB). Peak memory consumption was 27.6 MB. Max. memory is 16.1 GB. [2020-12-03 12:39:20,110 INFO L168 Benchmark]: TraceAbstraction took 4388.97 ms. Allocated memory is still 92.3 MB. Free memory was 66.6 MB in the beginning and 60.5 MB in the end (delta: 6.2 MB). Peak memory consumption was 35.3 MB. Max. memory is 16.1 GB. [2020-12-03 12:39:20,111 INFO L168 Benchmark]: Witness Printer took 81.48 ms. Allocated memory is still 92.3 MB. Free memory was 60.5 MB in the beginning and 55.4 MB in the end (delta: 5.1 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2020-12-03 12:39:20,114 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 69.2 MB. Free memory is still 50.8 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 791.70 ms. Allocated memory is still 69.2 MB. Free memory was 49.8 MB in the beginning and 48.4 MB in the end (delta: 1.4 MB). Peak memory consumption was 22.3 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 81.05 ms. Allocated memory is still 69.2 MB. Free memory was 48.4 MB in the beginning and 45.1 MB in the end (delta: 3.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 66.86 ms. Allocated memory is still 69.2 MB. Free memory was 45.1 MB in the beginning and 41.5 MB in the end (delta: 3.6 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1304.91 ms. Allocated memory was 69.2 MB in the beginning and 92.3 MB in the end (delta: 23.1 MB). Free memory was 41.5 MB in the beginning and 66.6 MB in the end (delta: -25.1 MB). Peak memory consumption was 27.6 MB. Max. memory is 16.1 GB. * TraceAbstraction took 4388.97 ms. Allocated memory is still 92.3 MB. Free memory was 66.6 MB in the beginning and 60.5 MB in the end (delta: 6.2 MB). Peak memory consumption was 35.3 MB. Max. memory is 16.1 GB. * Witness Printer took 81.48 ms. Allocated memory is still 92.3 MB. Free memory was 60.5 MB in the beginning and 55.4 MB in the end (delta: 5.1 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: 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: 4.2s, OverallIterations: 4, TraceHistogramMax: 1, AutomataDifference: 2.1s, 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, 1.7s 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, 0.2s SatisfiabilityAnalysisTime, 0.2s 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...