./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-sets/test_mutex_double_unlock.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 63182f13 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8119d87-a492-4ed8-9ccc-7db9c3ea9932/bin/utaipan-vmNK8stdcF/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8119d87-a492-4ed8-9ccc-7db9c3ea9932/bin/utaipan-vmNK8stdcF/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8119d87-a492-4ed8-9ccc-7db9c3ea9932/bin/utaipan-vmNK8stdcF/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8119d87-a492-4ed8-9ccc-7db9c3ea9932/bin/utaipan-vmNK8stdcF/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-sets/test_mutex_double_unlock.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8119d87-a492-4ed8-9ccc-7db9c3ea9932/bin/utaipan-vmNK8stdcF/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8119d87-a492-4ed8-9ccc-7db9c3ea9932/bin/utaipan-vmNK8stdcF --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 d82f1b23bea4834b28dfbe602ddf1f3e06a3ee60a847e3002a9403f092f2c830 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-63182f1 [2021-11-12 22:56:27,327 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-12 22:56:27,330 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-12 22:56:27,407 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-12 22:56:27,408 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-12 22:56:27,414 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-12 22:56:27,417 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-12 22:56:27,422 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-12 22:56:27,425 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-12 22:56:27,432 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-12 22:56:27,433 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-12 22:56:27,435 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-12 22:56:27,436 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-12 22:56:27,439 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-12 22:56:27,442 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-12 22:56:27,453 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-12 22:56:27,454 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-12 22:56:27,456 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-12 22:56:27,458 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-12 22:56:27,469 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-12 22:56:27,473 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-12 22:56:27,475 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-12 22:56:27,479 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-12 22:56:27,480 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-12 22:56:27,485 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-12 22:56:27,486 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-12 22:56:27,486 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-12 22:56:27,489 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-12 22:56:27,490 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-12 22:56:27,491 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-12 22:56:27,492 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-12 22:56:27,493 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-12 22:56:27,495 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-12 22:56:27,497 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-12 22:56:27,499 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-12 22:56:27,499 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-12 22:56:27,500 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-12 22:56:27,500 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-12 22:56:27,501 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-12 22:56:27,502 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-12 22:56:27,502 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-12 22:56:27,504 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8119d87-a492-4ed8-9ccc-7db9c3ea9932/bin/utaipan-vmNK8stdcF/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-11-12 22:56:27,560 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-12 22:56:27,560 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-12 22:56:27,562 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-12 22:56:27,562 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-12 22:56:27,563 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-12 22:56:27,563 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-12 22:56:27,563 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-12 22:56:27,563 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-12 22:56:27,564 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-12 22:56:27,564 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-12 22:56:27,565 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-12 22:56:27,566 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-12 22:56:27,566 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-12 22:56:27,566 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-12 22:56:27,566 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-12 22:56:27,567 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-11-12 22:56:27,568 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-12 22:56:27,568 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-12 22:56:27,568 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-12 22:56:27,569 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-12 22:56:27,569 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-12 22:56:27,569 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-12 22:56:27,569 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-12 22:56:27,570 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-12 22:56:27,570 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-12 22:56:27,570 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-12 22:56:27,571 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-12 22:56:27,571 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-12 22:56:27,571 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-12 22:56:27,573 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-12 22:56:27,573 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-12 22:56:27,574 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-12 22:56:27,574 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-12 22:56:27,574 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-12 22:56:27,575 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-12 22:56:27,575 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-12 22:56:27,575 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-12 22:56:27,575 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-12 22:56:27,576 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-12 22:56:27,576 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-12 22:56:27,576 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8119d87-a492-4ed8-9ccc-7db9c3ea9932/bin/utaipan-vmNK8stdcF/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8119d87-a492-4ed8-9ccc-7db9c3ea9932/bin/utaipan-vmNK8stdcF Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d82f1b23bea4834b28dfbe602ddf1f3e06a3ee60a847e3002a9403f092f2c830 [2021-11-12 22:56:27,936 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-12 22:56:27,977 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-12 22:56:27,980 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-12 22:56:27,982 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-12 22:56:27,983 INFO L275 PluginConnector]: CDTParser initialized [2021-11-12 22:56:27,984 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8119d87-a492-4ed8-9ccc-7db9c3ea9932/bin/utaipan-vmNK8stdcF/../../sv-benchmarks/c/ldv-sets/test_mutex_double_unlock.i [2021-11-12 22:56:28,072 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8119d87-a492-4ed8-9ccc-7db9c3ea9932/bin/utaipan-vmNK8stdcF/data/ea2202e58/68e0fac65ecf40c2a01dc4fcdda1fabc/FLAG6e5fbc4e6 [2021-11-12 22:56:28,816 INFO L306 CDTParser]: Found 1 translation units. [2021-11-12 22:56:28,817 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8119d87-a492-4ed8-9ccc-7db9c3ea9932/sv-benchmarks/c/ldv-sets/test_mutex_double_unlock.i [2021-11-12 22:56:28,847 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8119d87-a492-4ed8-9ccc-7db9c3ea9932/bin/utaipan-vmNK8stdcF/data/ea2202e58/68e0fac65ecf40c2a01dc4fcdda1fabc/FLAG6e5fbc4e6 [2021-11-12 22:56:29,027 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8119d87-a492-4ed8-9ccc-7db9c3ea9932/bin/utaipan-vmNK8stdcF/data/ea2202e58/68e0fac65ecf40c2a01dc4fcdda1fabc [2021-11-12 22:56:29,029 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-12 22:56:29,030 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-12 22:56:29,036 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-12 22:56:29,037 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-12 22:56:29,041 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-12 22:56:29,042 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 10:56:29" (1/1) ... [2021-11-12 22:56:29,043 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2cbe24fc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:56:29, skipping insertion in model container [2021-11-12 22:56:29,043 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 10:56:29" (1/1) ... [2021-11-12 22:56:29,053 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-12 22:56:29,099 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-12 22:56:29,506 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8119d87-a492-4ed8-9ccc-7db9c3ea9932/sv-benchmarks/c/ldv-sets/test_mutex_double_unlock.i[25842,25855] [2021-11-12 22:56:29,516 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8119d87-a492-4ed8-9ccc-7db9c3ea9932/sv-benchmarks/c/ldv-sets/test_mutex_double_unlock.i[25967,25980] [2021-11-12 22:56:29,521 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8119d87-a492-4ed8-9ccc-7db9c3ea9932/sv-benchmarks/c/ldv-sets/test_mutex_double_unlock.i[26082,26095] [2021-11-12 22:56:29,529 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-12 22:56:29,545 ERROR L326 MainTranslator]: Unsupported Syntax: Found a cast between two array/pointer types where the value type is smaller than the cast-to type while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) [2021-11-12 22:56:29,545 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@6f753326 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:56:29, skipping insertion in model container [2021-11-12 22:56:29,546 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-12 22:56:29,546 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2021-11-12 22:56:29,549 INFO L158 Benchmark]: Toolchain (without parser) took 516.71ms. Allocated memory is still 100.7MB. Free memory was 64.6MB in the beginning and 72.3MB in the end (delta: -7.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-11-12 22:56:29,551 INFO L158 Benchmark]: CDTParser took 0.27ms. Allocated memory is still 100.7MB. Free memory was 71.4MB in the beginning and 71.4MB in the end (delta: 27.6kB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-12 22:56:29,553 INFO L158 Benchmark]: CACSL2BoogieTranslator took 509.96ms. Allocated memory is still 100.7MB. Free memory was 64.4MB in the beginning and 72.3MB in the end (delta: -7.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-11-12 22:56:29,556 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27ms. Allocated memory is still 100.7MB. Free memory was 71.4MB in the beginning and 71.4MB in the end (delta: 27.6kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 509.96ms. Allocated memory is still 100.7MB. Free memory was 64.4MB in the beginning and 72.3MB in the end (delta: -7.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 638]: Unsupported Syntax Found a cast between two array/pointer types where the value type is smaller than the cast-to type while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8119d87-a492-4ed8-9ccc-7db9c3ea9932/bin/utaipan-vmNK8stdcF/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8119d87-a492-4ed8-9ccc-7db9c3ea9932/bin/utaipan-vmNK8stdcF/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8119d87-a492-4ed8-9ccc-7db9c3ea9932/bin/utaipan-vmNK8stdcF/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8119d87-a492-4ed8-9ccc-7db9c3ea9932/bin/utaipan-vmNK8stdcF/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-sets/test_mutex_double_unlock.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8119d87-a492-4ed8-9ccc-7db9c3ea9932/bin/utaipan-vmNK8stdcF/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8119d87-a492-4ed8-9ccc-7db9c3ea9932/bin/utaipan-vmNK8stdcF --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 d82f1b23bea4834b28dfbe602ddf1f3e06a3ee60a847e3002a9403f092f2c830 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-63182f1 [2021-11-12 22:56:32,325 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-12 22:56:32,328 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-12 22:56:32,381 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-12 22:56:32,382 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-12 22:56:32,387 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-12 22:56:32,390 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-12 22:56:32,399 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-12 22:56:32,403 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-12 22:56:32,413 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-12 22:56:32,415 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-12 22:56:32,417 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-12 22:56:32,418 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-12 22:56:32,421 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-12 22:56:32,424 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-12 22:56:32,429 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-12 22:56:32,431 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-12 22:56:32,432 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-12 22:56:32,447 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-12 22:56:32,457 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-12 22:56:32,459 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-12 22:56:32,461 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-12 22:56:32,465 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-12 22:56:32,467 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-12 22:56:32,479 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-12 22:56:32,479 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-12 22:56:32,480 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-12 22:56:32,482 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-12 22:56:32,483 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-12 22:56:32,484 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-12 22:56:32,485 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-12 22:56:32,486 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-12 22:56:32,489 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-12 22:56:32,490 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-12 22:56:32,492 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-12 22:56:32,493 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-12 22:56:32,494 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-12 22:56:32,494 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-12 22:56:32,494 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-12 22:56:32,497 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-12 22:56:32,498 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-12 22:56:32,499 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8119d87-a492-4ed8-9ccc-7db9c3ea9932/bin/utaipan-vmNK8stdcF/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2021-11-12 22:56:32,553 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-12 22:56:32,553 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-12 22:56:32,555 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-12 22:56:32,555 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-12 22:56:32,555 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-12 22:56:32,556 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-12 22:56:32,556 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-12 22:56:32,556 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-12 22:56:32,556 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-12 22:56:32,557 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-12 22:56:32,559 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-12 22:56:32,560 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-12 22:56:32,560 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-12 22:56:32,560 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-12 22:56:32,561 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-12 22:56:32,561 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-12 22:56:32,561 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-12 22:56:32,561 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-12 22:56:32,562 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-12 22:56:32,562 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-12 22:56:32,562 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-12 22:56:32,562 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-12 22:56:32,563 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-12 22:56:32,563 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-12 22:56:32,563 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-12 22:56:32,563 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-12 22:56:32,564 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-12 22:56:32,564 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-12 22:56:32,564 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-12 22:56:32,565 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-12 22:56:32,565 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-12 22:56:32,565 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-11-12 22:56:32,565 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-12 22:56:32,566 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-12 22:56:32,566 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-12 22:56:32,567 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-12 22:56:32,567 INFO L138 SettingsManager]: * Logic for external solver=AUFBV WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8119d87-a492-4ed8-9ccc-7db9c3ea9932/bin/utaipan-vmNK8stdcF/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8119d87-a492-4ed8-9ccc-7db9c3ea9932/bin/utaipan-vmNK8stdcF Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d82f1b23bea4834b28dfbe602ddf1f3e06a3ee60a847e3002a9403f092f2c830 [2021-11-12 22:56:32,990 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-12 22:56:33,015 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-12 22:56:33,018 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-12 22:56:33,019 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-12 22:56:33,020 INFO L275 PluginConnector]: CDTParser initialized [2021-11-12 22:56:33,021 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8119d87-a492-4ed8-9ccc-7db9c3ea9932/bin/utaipan-vmNK8stdcF/../../sv-benchmarks/c/ldv-sets/test_mutex_double_unlock.i [2021-11-12 22:56:33,086 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8119d87-a492-4ed8-9ccc-7db9c3ea9932/bin/utaipan-vmNK8stdcF/data/cc8caf652/ef755db1c9d64de89d2d7582a017a21b/FLAGd3ff08d3d [2021-11-12 22:56:33,848 INFO L306 CDTParser]: Found 1 translation units. [2021-11-12 22:56:33,849 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8119d87-a492-4ed8-9ccc-7db9c3ea9932/sv-benchmarks/c/ldv-sets/test_mutex_double_unlock.i [2021-11-12 22:56:33,869 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8119d87-a492-4ed8-9ccc-7db9c3ea9932/bin/utaipan-vmNK8stdcF/data/cc8caf652/ef755db1c9d64de89d2d7582a017a21b/FLAGd3ff08d3d [2021-11-12 22:56:34,114 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8119d87-a492-4ed8-9ccc-7db9c3ea9932/bin/utaipan-vmNK8stdcF/data/cc8caf652/ef755db1c9d64de89d2d7582a017a21b [2021-11-12 22:56:34,117 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-12 22:56:34,118 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-12 22:56:34,123 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-12 22:56:34,123 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-12 22:56:34,141 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-12 22:56:34,142 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 10:56:34" (1/1) ... [2021-11-12 22:56:34,143 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@36f6b12 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:56:34, skipping insertion in model container [2021-11-12 22:56:34,143 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 10:56:34" (1/1) ... [2021-11-12 22:56:34,152 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-12 22:56:34,228 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-12 22:56:34,611 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8119d87-a492-4ed8-9ccc-7db9c3ea9932/sv-benchmarks/c/ldv-sets/test_mutex_double_unlock.i[25842,25855] [2021-11-12 22:56:34,615 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8119d87-a492-4ed8-9ccc-7db9c3ea9932/sv-benchmarks/c/ldv-sets/test_mutex_double_unlock.i[25967,25980] [2021-11-12 22:56:34,617 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8119d87-a492-4ed8-9ccc-7db9c3ea9932/sv-benchmarks/c/ldv-sets/test_mutex_double_unlock.i[26082,26095] [2021-11-12 22:56:34,620 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-12 22:56:34,638 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-11-12 22:56:34,655 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-12 22:56:34,735 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8119d87-a492-4ed8-9ccc-7db9c3ea9932/sv-benchmarks/c/ldv-sets/test_mutex_double_unlock.i[25842,25855] [2021-11-12 22:56:34,746 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8119d87-a492-4ed8-9ccc-7db9c3ea9932/sv-benchmarks/c/ldv-sets/test_mutex_double_unlock.i[25967,25980] [2021-11-12 22:56:34,748 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8119d87-a492-4ed8-9ccc-7db9c3ea9932/sv-benchmarks/c/ldv-sets/test_mutex_double_unlock.i[26082,26095] [2021-11-12 22:56:34,757 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-12 22:56:34,762 INFO L203 MainTranslator]: Completed pre-run [2021-11-12 22:56:34,824 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8119d87-a492-4ed8-9ccc-7db9c3ea9932/sv-benchmarks/c/ldv-sets/test_mutex_double_unlock.i[25842,25855] [2021-11-12 22:56:34,825 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8119d87-a492-4ed8-9ccc-7db9c3ea9932/sv-benchmarks/c/ldv-sets/test_mutex_double_unlock.i[25967,25980] [2021-11-12 22:56:34,826 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8119d87-a492-4ed8-9ccc-7db9c3ea9932/sv-benchmarks/c/ldv-sets/test_mutex_double_unlock.i[26082,26095] [2021-11-12 22:56:34,828 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-12 22:56:34,883 INFO L208 MainTranslator]: Completed translation [2021-11-12 22:56:34,884 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:56:34 WrapperNode [2021-11-12 22:56:34,884 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-12 22:56:34,886 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-12 22:56:34,887 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-12 22:56:34,887 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-12 22:56:34,896 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:56:34" (1/1) ... [2021-11-12 22:56:34,926 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:56:34" (1/1) ... [2021-11-12 22:56:34,985 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-12 22:56:34,986 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-12 22:56:34,986 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-12 22:56:34,987 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-12 22:56:34,996 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:56:34" (1/1) ... [2021-11-12 22:56:34,997 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:56:34" (1/1) ... [2021-11-12 22:56:35,015 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:56:34" (1/1) ... [2021-11-12 22:56:35,031 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:56:34" (1/1) ... [2021-11-12 22:56:35,046 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:56:34" (1/1) ... [2021-11-12 22:56:35,051 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:56:34" (1/1) ... [2021-11-12 22:56:35,055 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:56:34" (1/1) ... [2021-11-12 22:56:35,061 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-12 22:56:35,062 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-12 22:56:35,062 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-12 22:56:35,062 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-12 22:56:35,063 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:56:34" (1/1) ... [2021-11-12 22:56:35,071 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-12 22:56:35,086 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8119d87-a492-4ed8-9ccc-7db9c3ea9932/bin/utaipan-vmNK8stdcF/z3 [2021-11-12 22:56:35,100 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8119d87-a492-4ed8-9ccc-7db9c3ea9932/bin/utaipan-vmNK8stdcF/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-12 22:56:35,104 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8119d87-a492-4ed8-9ccc-7db9c3ea9932/bin/utaipan-vmNK8stdcF/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-12 22:56:35,144 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_list_add [2021-11-12 22:56:35,145 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_list_add [2021-11-12 22:56:35,145 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2021-11-12 22:56:35,145 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2021-11-12 22:56:35,145 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-12 22:56:35,146 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock [2021-11-12 22:56:35,146 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock [2021-11-12 22:56:35,146 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-12 22:56:35,146 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-12 22:56:35,146 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_in_set [2021-11-12 22:56:35,147 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_in_set [2021-11-12 22:56:35,147 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-12 22:56:35,147 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-12 22:56:35,147 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-12 22:56:35,148 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-12 22:56:35,148 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_successful_malloc [2021-11-12 22:56:35,148 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_successful_malloc [2021-11-12 22:56:35,148 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-12 22:56:35,148 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-12 22:56:35,892 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-12 22:56:35,893 INFO L299 CfgBuilder]: Removed 2 assume(true) statements. [2021-11-12 22:56:35,895 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 10:56:35 BoogieIcfgContainer [2021-11-12 22:56:35,895 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-12 22:56:35,898 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-12 22:56:35,898 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-12 22:56:35,901 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-12 22:56:35,903 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.11 10:56:34" (1/3) ... [2021-11-12 22:56:35,904 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6334f635 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 10:56:35, skipping insertion in model container [2021-11-12 22:56:35,904 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:56:34" (2/3) ... [2021-11-12 22:56:35,904 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6334f635 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 10:56:35, skipping insertion in model container [2021-11-12 22:56:35,905 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 10:56:35" (3/3) ... [2021-11-12 22:56:35,906 INFO L111 eAbstractionObserver]: Analyzing ICFG test_mutex_double_unlock.i [2021-11-12 22:56:35,912 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-12 22:56:35,913 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2021-11-12 22:56:36,000 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-12 22:56:36,019 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-11-12 22:56:36,021 INFO L340 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2021-11-12 22:56:36,048 INFO L276 IsEmpty]: Start isEmpty. Operand has 67 states, 47 states have (on average 1.297872340425532) internal successors, (61), 50 states have internal predecessors, (61), 11 states have call successors, (11), 5 states have call predecessors, (11), 5 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2021-11-12 22:56:36,055 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2021-11-12 22:56:36,055 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 22:56:36,056 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 22:56:36,056 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting mutex_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [mutex_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, mutex_lockErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-12 22:56:36,063 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 22:56:36,064 INFO L85 PathProgramCache]: Analyzing trace with hash 673246785, now seen corresponding path program 1 times [2021-11-12 22:56:36,081 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 22:56:36,081 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [531680003] [2021-11-12 22:56:36,082 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 22:56:36,083 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 22:56:36,084 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8119d87-a492-4ed8-9ccc-7db9c3ea9932/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 22:56:36,087 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8119d87-a492-4ed8-9ccc-7db9c3ea9932/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 22:56:36,136 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8119d87-a492-4ed8-9ccc-7db9c3ea9932/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-11-12 22:56:36,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 22:56:36,273 INFO L263 TraceCheckSpWp]: Trace formula consists of 110 conjuncts, 1 conjunts are in the unsatisfiable core [2021-11-12 22:56:36,278 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 22:56:36,413 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-11-12 22:56:36,421 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 22:56:36,527 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-11-12 22:56:36,528 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 22:56:36,528 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [531680003] [2021-11-12 22:56:36,530 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [531680003] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-12 22:56:36,530 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-12 22:56:36,531 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2021-11-12 22:56:36,533 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [688992216] [2021-11-12 22:56:36,536 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-12 22:56:36,542 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-12 22:56:36,542 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 22:56:36,588 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-12 22:56:36,589 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-12 22:56:36,591 INFO L87 Difference]: Start difference. First operand has 67 states, 47 states have (on average 1.297872340425532) internal successors, (61), 50 states have internal predecessors, (61), 11 states have call successors, (11), 5 states have call predecessors, (11), 5 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) Second operand has 2 states, 2 states have (on average 11.5) internal successors, (23), 2 states have internal predecessors, (23), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2021-11-12 22:56:36,647 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 22:56:36,647 INFO L93 Difference]: Finished difference Result 130 states and 171 transitions. [2021-11-12 22:56:36,649 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-12 22:56:36,651 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 11.5) internal successors, (23), 2 states have internal predecessors, (23), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 27 [2021-11-12 22:56:36,652 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 22:56:36,661 INFO L225 Difference]: With dead ends: 130 [2021-11-12 22:56:36,661 INFO L226 Difference]: Without dead ends: 62 [2021-11-12 22:56:36,667 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 52 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-12 22:56:36,673 INFO L933 BasicCegarLoop]: 77 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.00ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 77 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 2.51ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.00ms IncrementalHoareTripleChecker+Time [2021-11-12 22:56:36,674 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 77 Invalid, 0 Unknown, 0 Unchecked, 2.51ms Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.00ms Time] [2021-11-12 22:56:36,698 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62 states. [2021-11-12 22:56:36,740 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62 to 62. [2021-11-12 22:56:36,741 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 62 states, 43 states have (on average 1.1627906976744187) internal successors, (50), 45 states have internal predecessors, (50), 11 states have call successors, (11), 5 states have call predecessors, (11), 5 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2021-11-12 22:56:36,748 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62 states to 62 states and 72 transitions. [2021-11-12 22:56:36,750 INFO L78 Accepts]: Start accepts. Automaton has 62 states and 72 transitions. Word has length 27 [2021-11-12 22:56:36,751 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 22:56:36,751 INFO L470 AbstractCegarLoop]: Abstraction has 62 states and 72 transitions. [2021-11-12 22:56:36,751 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 11.5) internal successors, (23), 2 states have internal predecessors, (23), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2021-11-12 22:56:36,752 INFO L276 IsEmpty]: Start isEmpty. Operand 62 states and 72 transitions. [2021-11-12 22:56:36,754 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2021-11-12 22:56:36,754 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 22:56:36,755 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 22:56:36,770 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8119d87-a492-4ed8-9ccc-7db9c3ea9932/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-11-12 22:56:36,968 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8119d87-a492-4ed8-9ccc-7db9c3ea9932/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 22:56:36,969 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting mutex_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [mutex_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, mutex_lockErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-12 22:56:36,969 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 22:56:36,970 INFO L85 PathProgramCache]: Analyzing trace with hash -387762175, now seen corresponding path program 1 times [2021-11-12 22:56:36,970 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 22:56:36,971 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [649983975] [2021-11-12 22:56:36,971 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 22:56:36,971 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 22:56:36,971 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8119d87-a492-4ed8-9ccc-7db9c3ea9932/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 22:56:36,972 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8119d87-a492-4ed8-9ccc-7db9c3ea9932/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 22:56:36,979 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8119d87-a492-4ed8-9ccc-7db9c3ea9932/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-11-12 22:56:37,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 22:56:37,091 INFO L263 TraceCheckSpWp]: Trace formula consists of 110 conjuncts, 16 conjunts are in the unsatisfiable core [2021-11-12 22:56:37,095 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 22:56:37,891 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2021-11-12 22:56:37,891 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 22:56:38,470 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2021-11-12 22:56:38,470 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 22:56:38,470 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [649983975] [2021-11-12 22:56:38,471 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [649983975] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-12 22:56:38,471 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-12 22:56:38,471 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 5] imperfect sequences [] total 8 [2021-11-12 22:56:38,471 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1861421294] [2021-11-12 22:56:38,471 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-12 22:56:38,473 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-12 22:56:38,473 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 22:56:38,474 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-12 22:56:38,474 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-11-12 22:56:38,474 INFO L87 Difference]: Start difference. First operand 62 states and 72 transitions. Second operand has 8 states, 8 states have (on average 3.75) internal successors, (30), 8 states have internal predecessors, (30), 2 states have call successors, (8), 3 states have call predecessors, (8), 4 states have return successors, (6), 3 states have call predecessors, (6), 2 states have call successors, (6) [2021-11-12 22:56:39,604 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 22:56:39,605 INFO L93 Difference]: Finished difference Result 195 states and 243 transitions. [2021-11-12 22:56:39,605 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-11-12 22:56:39,606 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 3.75) internal successors, (30), 8 states have internal predecessors, (30), 2 states have call successors, (8), 3 states have call predecessors, (8), 4 states have return successors, (6), 3 states have call predecessors, (6), 2 states have call successors, (6) Word has length 27 [2021-11-12 22:56:39,606 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 22:56:39,611 INFO L225 Difference]: With dead ends: 195 [2021-11-12 22:56:39,611 INFO L226 Difference]: Without dead ends: 141 [2021-11-12 22:56:39,613 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 46 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-11-12 22:56:39,615 INFO L933 BasicCegarLoop]: 82 mSDtfsCounter, 103 mSDsluCounter, 210 mSDsCounter, 0 mSdLazyCounter, 198 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 902.31ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 111 SdHoareTripleChecker+Valid, 292 SdHoareTripleChecker+Invalid, 207 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 12.94ms SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 198 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1016.22ms IncrementalHoareTripleChecker+Time [2021-11-12 22:56:39,615 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [111 Valid, 292 Invalid, 207 Unknown, 0 Unchecked, 12.94ms Time], IncrementalHoareTripleChecker [9 Valid, 198 Invalid, 0 Unknown, 0 Unchecked, 1016.22ms Time] [2021-11-12 22:56:39,617 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 141 states. [2021-11-12 22:56:39,641 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 141 to 120. [2021-11-12 22:56:39,641 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 120 states, 85 states have (on average 1.2470588235294118) internal successors, (106), 90 states have internal predecessors, (106), 19 states have call successors, (19), 9 states have call predecessors, (19), 13 states have return successors, (31), 20 states have call predecessors, (31), 19 states have call successors, (31) [2021-11-12 22:56:39,644 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 120 states to 120 states and 156 transitions. [2021-11-12 22:56:39,644 INFO L78 Accepts]: Start accepts. Automaton has 120 states and 156 transitions. Word has length 27 [2021-11-12 22:56:39,645 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 22:56:39,645 INFO L470 AbstractCegarLoop]: Abstraction has 120 states and 156 transitions. [2021-11-12 22:56:39,645 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 3.75) internal successors, (30), 8 states have internal predecessors, (30), 2 states have call successors, (8), 3 states have call predecessors, (8), 4 states have return successors, (6), 3 states have call predecessors, (6), 2 states have call successors, (6) [2021-11-12 22:56:39,646 INFO L276 IsEmpty]: Start isEmpty. Operand 120 states and 156 transitions. [2021-11-12 22:56:39,647 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2021-11-12 22:56:39,647 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 22:56:39,647 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 22:56:39,663 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8119d87-a492-4ed8-9ccc-7db9c3ea9932/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-11-12 22:56:39,859 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8119d87-a492-4ed8-9ccc-7db9c3ea9932/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 22:56:39,860 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting mutex_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [mutex_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, mutex_lockErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-12 22:56:39,861 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 22:56:39,861 INFO L85 PathProgramCache]: Analyzing trace with hash -438555830, now seen corresponding path program 1 times [2021-11-12 22:56:39,862 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 22:56:39,862 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [108060434] [2021-11-12 22:56:39,862 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 22:56:39,863 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 22:56:39,863 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8119d87-a492-4ed8-9ccc-7db9c3ea9932/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 22:56:39,864 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8119d87-a492-4ed8-9ccc-7db9c3ea9932/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 22:56:39,909 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8119d87-a492-4ed8-9ccc-7db9c3ea9932/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-11-12 22:56:39,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 22:56:39,979 INFO L263 TraceCheckSpWp]: Trace formula consists of 107 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-12 22:56:39,981 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 22:56:40,049 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2021-11-12 22:56:40,050 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 22:56:40,156 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2021-11-12 22:56:40,156 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 22:56:40,156 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [108060434] [2021-11-12 22:56:40,157 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [108060434] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-12 22:56:40,157 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-12 22:56:40,157 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 4 [2021-11-12 22:56:40,157 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1736107572] [2021-11-12 22:56:40,157 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-12 22:56:40,158 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-12 22:56:40,158 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 22:56:40,158 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-12 22:56:40,159 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-12 22:56:40,159 INFO L87 Difference]: Start difference. First operand 120 states and 156 transitions. Second operand has 4 states, 4 states have (on average 4.0) internal successors, (16), 3 states have internal predecessors, (16), 1 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2021-11-12 22:56:40,176 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 22:56:40,176 INFO L93 Difference]: Finished difference Result 127 states and 166 transitions. [2021-11-12 22:56:40,195 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-12 22:56:40,195 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 4.0) internal successors, (16), 3 states have internal predecessors, (16), 1 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) Word has length 27 [2021-11-12 22:56:40,196 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 22:56:40,198 INFO L225 Difference]: With dead ends: 127 [2021-11-12 22:56:40,198 INFO L226 Difference]: Without dead ends: 125 [2021-11-12 22:56:40,199 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 50 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-12 22:56:40,200 INFO L933 BasicCegarLoop]: 73 mSDtfsCounter, 0 mSDsluCounter, 142 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.46ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 215 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 1.69ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.32ms IncrementalHoareTripleChecker+Time [2021-11-12 22:56:40,201 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 215 Invalid, 5 Unknown, 0 Unchecked, 1.69ms Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 5.32ms Time] [2021-11-12 22:56:40,202 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 125 states. [2021-11-12 22:56:40,232 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 125 to 123. [2021-11-12 22:56:40,233 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 123 states, 87 states have (on average 1.2183908045977012) internal successors, (106), 92 states have internal predecessors, (106), 19 states have call successors, (19), 9 states have call predecessors, (19), 14 states have return successors, (35), 21 states have call predecessors, (35), 19 states have call successors, (35) [2021-11-12 22:56:40,235 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 123 states to 123 states and 160 transitions. [2021-11-12 22:56:40,251 INFO L78 Accepts]: Start accepts. Automaton has 123 states and 160 transitions. Word has length 27 [2021-11-12 22:56:40,251 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 22:56:40,251 INFO L470 AbstractCegarLoop]: Abstraction has 123 states and 160 transitions. [2021-11-12 22:56:40,252 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 4.0) internal successors, (16), 3 states have internal predecessors, (16), 1 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2021-11-12 22:56:40,252 INFO L276 IsEmpty]: Start isEmpty. Operand 123 states and 160 transitions. [2021-11-12 22:56:40,255 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2021-11-12 22:56:40,255 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 22:56:40,255 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 22:56:40,272 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8119d87-a492-4ed8-9ccc-7db9c3ea9932/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-11-12 22:56:40,468 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8119d87-a492-4ed8-9ccc-7db9c3ea9932/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 22:56:40,468 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting mutex_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION === [mutex_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, mutex_lockErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-12 22:56:40,469 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 22:56:40,469 INFO L85 PathProgramCache]: Analyzing trace with hash -811626959, now seen corresponding path program 1 times [2021-11-12 22:56:40,469 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 22:56:40,470 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [83641015] [2021-11-12 22:56:40,470 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 22:56:40,470 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 22:56:40,470 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8119d87-a492-4ed8-9ccc-7db9c3ea9932/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 22:56:40,471 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8119d87-a492-4ed8-9ccc-7db9c3ea9932/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 22:56:40,472 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8119d87-a492-4ed8-9ccc-7db9c3ea9932/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-11-12 22:56:40,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 22:56:40,626 INFO L263 TraceCheckSpWp]: Trace formula consists of 241 conjuncts, 25 conjunts are in the unsatisfiable core [2021-11-12 22:56:40,632 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 22:56:40,945 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2021-11-12 22:56:40,952 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2021-11-12 22:56:41,494 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 39 proven. 0 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2021-11-12 22:56:41,495 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 22:56:42,429 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 4 [2021-11-12 22:56:42,440 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 4 [2021-11-12 22:56:42,922 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 3 proven. 19 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2021-11-12 22:56:42,922 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 22:56:42,922 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [83641015] [2021-11-12 22:56:42,922 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [83641015] provided 1 perfect and 1 imperfect interpolant sequences [2021-11-12 22:56:42,922 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-12 22:56:42,923 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [8] total 15 [2021-11-12 22:56:42,923 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1574419133] [2021-11-12 22:56:42,923 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-12 22:56:42,924 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-11-12 22:56:42,924 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 22:56:42,924 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-11-12 22:56:42,925 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=160, Unknown=0, NotChecked=0, Total=210 [2021-11-12 22:56:42,925 INFO L87 Difference]: Start difference. First operand 123 states and 160 transitions. Second operand has 9 states, 8 states have (on average 4.75) internal successors, (38), 8 states have internal predecessors, (38), 4 states have call successors, (10), 4 states have call predecessors, (10), 5 states have return successors, (9), 4 states have call predecessors, (9), 4 states have call successors, (9) [2021-11-12 22:56:45,129 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 22:56:45,130 INFO L93 Difference]: Finished difference Result 291 states and 374 transitions. [2021-11-12 22:56:45,130 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-11-12 22:56:45,131 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 4.75) internal successors, (38), 8 states have internal predecessors, (38), 4 states have call successors, (10), 4 states have call predecessors, (10), 5 states have return successors, (9), 4 states have call predecessors, (9), 4 states have call successors, (9) Word has length 67 [2021-11-12 22:56:45,131 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 22:56:45,135 INFO L225 Difference]: With dead ends: 291 [2021-11-12 22:56:45,136 INFO L226 Difference]: Without dead ends: 166 [2021-11-12 22:56:45,139 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 143 GetRequests, 119 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 96 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=170, Invalid=480, Unknown=0, NotChecked=0, Total=650 [2021-11-12 22:56:45,140 INFO L933 BasicCegarLoop]: 87 mSDtfsCounter, 249 mSDsluCounter, 225 mSDsCounter, 0 mSdLazyCounter, 392 mSolverCounterSat, 79 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1433.42ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 258 SdHoareTripleChecker+Valid, 312 SdHoareTripleChecker+Invalid, 471 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 8.52ms SdHoareTripleChecker+Time, 79 IncrementalHoareTripleChecker+Valid, 392 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1624.11ms IncrementalHoareTripleChecker+Time [2021-11-12 22:56:45,141 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [258 Valid, 312 Invalid, 471 Unknown, 0 Unchecked, 8.52ms Time], IncrementalHoareTripleChecker [79 Valid, 392 Invalid, 0 Unknown, 0 Unchecked, 1624.11ms Time] [2021-11-12 22:56:45,143 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 166 states. [2021-11-12 22:56:45,165 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 166 to 122. [2021-11-12 22:56:45,166 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 122 states, 86 states have (on average 1.186046511627907) internal successors, (102), 92 states have internal predecessors, (102), 19 states have call successors, (19), 10 states have call predecessors, (19), 14 states have return successors, (32), 19 states have call predecessors, (32), 19 states have call successors, (32) [2021-11-12 22:56:45,169 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 122 states to 122 states and 153 transitions. [2021-11-12 22:56:45,169 INFO L78 Accepts]: Start accepts. Automaton has 122 states and 153 transitions. Word has length 67 [2021-11-12 22:56:45,169 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 22:56:45,170 INFO L470 AbstractCegarLoop]: Abstraction has 122 states and 153 transitions. [2021-11-12 22:56:45,170 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 4.75) internal successors, (38), 8 states have internal predecessors, (38), 4 states have call successors, (10), 4 states have call predecessors, (10), 5 states have return successors, (9), 4 states have call predecessors, (9), 4 states have call successors, (9) [2021-11-12 22:56:45,170 INFO L276 IsEmpty]: Start isEmpty. Operand 122 states and 153 transitions. [2021-11-12 22:56:45,172 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2021-11-12 22:56:45,172 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 22:56:45,173 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 22:56:45,193 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8119d87-a492-4ed8-9ccc-7db9c3ea9932/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2021-11-12 22:56:45,387 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8119d87-a492-4ed8-9ccc-7db9c3ea9932/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 22:56:45,387 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting mutex_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION === [mutex_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, mutex_lockErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-12 22:56:45,388 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 22:56:45,388 INFO L85 PathProgramCache]: Analyzing trace with hash 1108503363, now seen corresponding path program 1 times [2021-11-12 22:56:45,389 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 22:56:45,389 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [283577607] [2021-11-12 22:56:45,389 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 22:56:45,389 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 22:56:45,389 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8119d87-a492-4ed8-9ccc-7db9c3ea9932/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 22:56:45,390 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8119d87-a492-4ed8-9ccc-7db9c3ea9932/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 22:56:45,393 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8119d87-a492-4ed8-9ccc-7db9c3ea9932/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-11-12 22:56:45,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 22:56:45,556 INFO L263 TraceCheckSpWp]: Trace formula consists of 235 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-12 22:56:45,560 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 22:56:45,721 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 38 proven. 0 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2021-11-12 22:56:45,722 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 22:56:45,903 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 2 proven. 10 refuted. 0 times theorem prover too weak. 52 trivial. 0 not checked. [2021-11-12 22:56:45,904 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 22:56:45,904 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [283577607] [2021-11-12 22:56:45,904 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [283577607] provided 1 perfect and 1 imperfect interpolant sequences [2021-11-12 22:56:45,905 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-12 22:56:45,905 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 4 [2021-11-12 22:56:45,905 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1103905831] [2021-11-12 22:56:45,905 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-12 22:56:45,906 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-12 22:56:45,906 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 22:56:45,907 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-12 22:56:45,907 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-12 22:56:45,907 INFO L87 Difference]: Start difference. First operand 122 states and 153 transitions. Second operand has 4 states, 4 states have (on average 8.0) internal successors, (32), 3 states have internal predecessors, (32), 2 states have call successors, (10), 2 states have call predecessors, (10), 3 states have return successors, (9), 3 states have call predecessors, (9), 2 states have call successors, (9) [2021-11-12 22:56:45,927 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 22:56:45,927 INFO L93 Difference]: Finished difference Result 196 states and 237 transitions. [2021-11-12 22:56:45,928 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-12 22:56:45,928 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 8.0) internal successors, (32), 3 states have internal predecessors, (32), 2 states have call successors, (10), 2 states have call predecessors, (10), 3 states have return successors, (9), 3 states have call predecessors, (9), 2 states have call successors, (9) Word has length 67 [2021-11-12 22:56:45,929 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 22:56:45,931 INFO L225 Difference]: With dead ends: 196 [2021-11-12 22:56:45,931 INFO L226 Difference]: Without dead ends: 109 [2021-11-12 22:56:45,932 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 132 GetRequests, 130 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-12 22:56:45,933 INFO L933 BasicCegarLoop]: 72 mSDtfsCounter, 0 mSDsluCounter, 140 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.21ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 212 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 1.36ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.26ms IncrementalHoareTripleChecker+Time [2021-11-12 22:56:45,934 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 212 Invalid, 6 Unknown, 0 Unchecked, 1.36ms Time], IncrementalHoareTripleChecker [0 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 7.26ms Time] [2021-11-12 22:56:45,935 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 109 states. [2021-11-12 22:56:45,950 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 109 to 103. [2021-11-12 22:56:45,950 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 103 states, 73 states have (on average 1.1369863013698631) internal successors, (83), 77 states have internal predecessors, (83), 15 states have call successors, (15), 9 states have call predecessors, (15), 12 states have return successors, (23), 16 states have call predecessors, (23), 15 states have call successors, (23) [2021-11-12 22:56:45,952 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 103 states to 103 states and 121 transitions. [2021-11-12 22:56:45,958 INFO L78 Accepts]: Start accepts. Automaton has 103 states and 121 transitions. Word has length 67 [2021-11-12 22:56:45,959 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 22:56:45,959 INFO L470 AbstractCegarLoop]: Abstraction has 103 states and 121 transitions. [2021-11-12 22:56:45,959 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 8.0) internal successors, (32), 3 states have internal predecessors, (32), 2 states have call successors, (10), 2 states have call predecessors, (10), 3 states have return successors, (9), 3 states have call predecessors, (9), 2 states have call successors, (9) [2021-11-12 22:56:45,960 INFO L276 IsEmpty]: Start isEmpty. Operand 103 states and 121 transitions. [2021-11-12 22:56:45,961 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2021-11-12 22:56:45,961 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 22:56:45,961 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 22:56:45,981 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8119d87-a492-4ed8-9ccc-7db9c3ea9932/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2021-11-12 22:56:46,177 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8119d87-a492-4ed8-9ccc-7db9c3ea9932/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 22:56:46,177 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting mutex_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [mutex_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, mutex_lockErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-12 22:56:46,178 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 22:56:46,178 INFO L85 PathProgramCache]: Analyzing trace with hash -1210243856, now seen corresponding path program 1 times [2021-11-12 22:56:46,179 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 22:56:46,179 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [890017045] [2021-11-12 22:56:46,179 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 22:56:46,180 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 22:56:46,180 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8119d87-a492-4ed8-9ccc-7db9c3ea9932/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 22:56:46,182 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8119d87-a492-4ed8-9ccc-7db9c3ea9932/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 22:56:46,188 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8119d87-a492-4ed8-9ccc-7db9c3ea9932/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2021-11-12 22:56:46,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 22:56:46,445 INFO L263 TraceCheckSpWp]: Trace formula consists of 238 conjuncts, 77 conjunts are in the unsatisfiable core [2021-11-12 22:56:46,450 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 22:56:46,506 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-11-12 22:56:46,891 INFO L354 Elim1Store]: treesize reduction 15, result has 46.4 percent of original size [2021-11-12 22:56:46,892 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 32 treesize of output 39 [2021-11-12 22:56:47,103 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2021-11-12 22:56:48,380 INFO L354 Elim1Store]: treesize reduction 166, result has 26.9 percent of original size [2021-11-12 22:56:48,380 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 3 case distinctions, treesize of input 155 treesize of output 145 [2021-11-12 22:56:54,988 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-12 22:56:54,998 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:56:55,000 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:56:55,155 INFO L354 Elim1Store]: treesize reduction 590, result has 8.8 percent of original size [2021-11-12 22:56:55,156 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 2 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 4 new quantified variables, introduced 4 case distinctions, treesize of input 622 treesize of output 315 [2021-11-12 22:56:55,219 INFO L354 Elim1Store]: treesize reduction 28, result has 50.9 percent of original size [2021-11-12 22:56:55,219 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 471 treesize of output 477 [2021-11-12 22:56:55,500 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:56:55,502 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:56:55,519 INFO L354 Elim1Store]: treesize reduction 126, result has 0.8 percent of original size [2021-11-12 22:56:55,519 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 5 disjoint index pairs (out of 10 index pairs), introduced 6 new quantified variables, introduced 4 case distinctions, treesize of input 148 treesize of output 47 [2021-11-12 22:56:55,803 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:56:55,805 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:56:55,816 INFO L354 Elim1Store]: treesize reduction 42, result has 2.3 percent of original size [2021-11-12 22:56:55,816 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 6 new quantified variables, introduced 6 case distinctions, treesize of input 228 treesize of output 144 [2021-11-12 22:57:14,686 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 14 proven. 12 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2021-11-12 22:57:14,686 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 22:57:31,316 WARN L838 $PredicateComparison]: unable to prove that (forall ((v___ldv_list_add_~next.offset_7 (_ BitVec 32)) (|v_mutex_lock_ldv_list_add_~new#1.base_8| (_ BitVec 32))) (or (not (= (select (select (let ((.cse0 (let ((.cse3 (store |c_#memory_$Pointer$.base| |v_mutex_lock_ldv_list_add_~new#1.base_8| (store (select |c_#memory_$Pointer$.base| |v_mutex_lock_ldv_list_add_~new#1.base_8|) (_ bv0 32) |c_ULTIMATE.start_foo_~m1~0#1.base|)))) (let ((.cse2 (select (select .cse3 |c_~#mutexes~0.base|) |c_~#mutexes~0.offset|))) (let ((.cse1 (store .cse3 .cse2 (store (select .cse3 .cse2) (bvadd (_ bv4 32) v___ldv_list_add_~next.offset_7) |v_mutex_lock_ldv_list_add_~new#1.base_8|)))) (store .cse1 |v_mutex_lock_ldv_list_add_~new#1.base_8| (store (store (select .cse1 |v_mutex_lock_ldv_list_add_~new#1.base_8|) (_ bv4 32) .cse2) (_ bv8 32) |c_~#mutexes~0.base|))))))) (store .cse0 |c_~#mutexes~0.base| (store (select .cse0 |c_~#mutexes~0.base|) |c_~#mutexes~0.offset| |v_mutex_lock_ldv_list_add_~new#1.base_8|))) |v_mutex_lock_ldv_list_add_~new#1.base_8|) (_ bv0 32)) |c_ULTIMATE.start_foo_~m2~0#1.base|)) (not (= (_ bv0 1) (bvneg (bvneg (bvneg (bvneg (select |c_#valid| |v_mutex_lock_ldv_list_add_~new#1.base_8|))))))))) is different from false [2021-11-12 22:57:58,883 WARN L838 $PredicateComparison]: unable to prove that (forall ((|v_#memory_$Pointer$.offset_69| (Array (_ BitVec 32) (Array (_ BitVec 32) (_ BitVec 32)))) (v___ldv_list_add_~next.offset_10 (_ BitVec 32))) (exists ((v___ldv_list_add_~next.offset_7 (_ BitVec 32)) (|v_mutex_lock_ldv_list_add_~new#1.base_8| (_ BitVec 32))) (and (= (_ bv0 1) (bvneg (bvneg (bvneg (bvneg (select |c_old(#valid)| |v_mutex_lock_ldv_list_add_~new#1.base_8|)))))) (= (select (select (let ((.cse0 (let ((.cse3 (store |c_old(#memory_$Pointer$.base)| |v_mutex_lock_ldv_list_add_~new#1.base_8| (store (select |c_old(#memory_$Pointer$.base)| |v_mutex_lock_ldv_list_add_~new#1.base_8|) (_ bv0 32) |c_mutex_lock_#in~m#1.base|)))) (let ((.cse2 (select (select .cse3 |c_~#mutexes~0.base|) |c_~#mutexes~0.offset|))) (let ((.cse1 (store .cse3 .cse2 (store (select .cse3 .cse2) (bvadd (_ bv4 32) v___ldv_list_add_~next.offset_7) |v_mutex_lock_ldv_list_add_~new#1.base_8|)))) (store .cse1 |v_mutex_lock_ldv_list_add_~new#1.base_8| (store (store (select .cse1 |v_mutex_lock_ldv_list_add_~new#1.base_8|) (_ bv4 32) .cse2) (_ bv8 32) |c_~#mutexes~0.base|))))))) (store .cse0 |c_~#mutexes~0.base| (store (select .cse0 |c_~#mutexes~0.base|) |c_~#mutexes~0.offset| |v_mutex_lock_ldv_list_add_~new#1.base_8|))) |v_mutex_lock_ldv_list_add_~new#1.base_8|) (_ bv0 32)) (let ((.cse7 (bvadd (_ bv4 32) |c_mutex_lock_ldv_list_add_~new#1.offset|)) (.cse8 (bvadd (_ bv4 32) v___ldv_list_add_~next.offset_10))) (select (let ((.cse4 (let ((.cse5 (let ((.cse6 (store |c_#memory_$Pointer$.base| |c_mutex_lock_ldv_list_add_#t~mem8#1.base| (store (select |c_#memory_$Pointer$.base| |c_mutex_lock_ldv_list_add_#t~mem8#1.base|) .cse8 |c_mutex_lock_ldv_list_add_~new#1.base|)))) (store .cse6 |c_mutex_lock_ldv_list_add_~new#1.base| (store (store (select .cse6 |c_mutex_lock_ldv_list_add_~new#1.base|) |c_mutex_lock_ldv_list_add_~new#1.offset| |c_mutex_lock_ldv_list_add_#t~mem8#1.base|) .cse7 |c_mutex_lock_ldv_list_add_~head#1.base|))))) (store .cse5 |c_mutex_lock_ldv_list_add_~head#1.base| (store (select .cse5 |c_mutex_lock_ldv_list_add_~head#1.base|) |c_mutex_lock_ldv_list_add_~head#1.offset| |c_mutex_lock_ldv_list_add_~new#1.base|))))) (select .cse4 (select (select .cse4 |c_~#mutexes~0.base|) |c_~#mutexes~0.offset|))) (bvadd (_ bv4294967292 32) (select (select (let ((.cse9 (let ((.cse10 (store |v_#memory_$Pointer$.offset_69| |c_mutex_lock_ldv_list_add_#t~mem8#1.base| (store (select |v_#memory_$Pointer$.offset_69| |c_mutex_lock_ldv_list_add_#t~mem8#1.base|) .cse8 |c_mutex_lock_ldv_list_add_~new#1.offset|)))) (store .cse10 |c_mutex_lock_ldv_list_add_~new#1.base| (store (store (select .cse10 |c_mutex_lock_ldv_list_add_~new#1.base|) |c_mutex_lock_ldv_list_add_~new#1.offset| v___ldv_list_add_~next.offset_10) .cse7 |c_mutex_lock_ldv_list_add_~head#1.offset|))))) (store .cse9 |c_mutex_lock_ldv_list_add_~head#1.base| (store (select .cse9 |c_mutex_lock_ldv_list_add_~head#1.base|) |c_mutex_lock_ldv_list_add_~head#1.offset| |c_mutex_lock_ldv_list_add_~new#1.offset|))) |c_~#mutexes~0.base|) |c_~#mutexes~0.offset|)))))))) is different from false [2021-11-12 22:58:01,349 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 1326 treesize of output 1302 [2021-11-12 22:58:01,627 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 22:58:01,628 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 1302 treesize of output 1306 [2021-11-12 22:58:08,572 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 58105 treesize of output 58025 [2021-11-12 22:58:08,650 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 22:58:08,651 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [890017045] [2021-11-12 22:58:08,652 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: BigInteger out of long range [2021-11-12 22:58:08,652 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1551944029] [2021-11-12 22:58:08,652 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 22:58:08,652 INFO L168 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-11-12 22:58:08,653 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8119d87-a492-4ed8-9ccc-7db9c3ea9932/bin/utaipan-vmNK8stdcF/cvc4 [2021-11-12 22:58:08,659 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8119d87-a492-4ed8-9ccc-7db9c3ea9932/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-11-12 22:58:08,671 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8119d87-a492-4ed8-9ccc-7db9c3ea9932/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt (8)] Waiting until timeout for monitored process [2021-11-12 22:58:09,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 22:58:09,043 INFO L263 TraceCheckSpWp]: Trace formula consists of 238 conjuncts, 75 conjunts are in the unsatisfiable core [2021-11-12 22:58:09,049 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 22:58:11,669 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-11-12 22:58:19,785 INFO L354 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2021-11-12 22:58:19,786 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 19 treesize of output 19 [2021-11-12 22:58:23,459 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2021-11-12 22:58:50,454 WARN L227 SmtUtils]: Spent 6.80s on a formula simplification. DAG size of input: 56 DAG size of output: 32 (called from [L 351] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2021-11-12 22:58:50,455 INFO L354 Elim1Store]: treesize reduction 166, result has 26.9 percent of original size [2021-11-12 22:58:50,455 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 3 case distinctions, treesize of input 155 treesize of output 145 [2021-11-12 22:59:11,024 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-12 22:59:11,037 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:59:11,043 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:59:11,675 INFO L354 Elim1Store]: treesize reduction 578, result has 10.7 percent of original size [2021-11-12 22:59:11,676 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 2 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 4 new quantified variables, introduced 4 case distinctions, treesize of input 589 treesize of output 294 [2021-11-12 22:59:11,848 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:59:11,854 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:59:11,860 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:59:12,025 INFO L354 Elim1Store]: treesize reduction 98, result has 22.8 percent of original size [2021-11-12 22:59:12,025 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 4 disjoint index pairs (out of 10 index pairs), introduced 6 new quantified variables, introduced 4 case distinctions, treesize of input 302 treesize of output 206 [2021-11-12 22:59:12,475 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:59:12,481 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:59:12,487 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:59:12,489 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 284 treesize of output 174 [2021-11-12 22:59:42,036 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 2 proven. 24 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2021-11-12 22:59:42,036 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 23:00:22,848 WARN L838 $PredicateComparison]: unable to prove that (forall ((|v_#memory_$Pointer$.offset_91| (Array (_ BitVec 32) (Array (_ BitVec 32) (_ BitVec 32)))) (v___ldv_list_add_~next.offset_19 (_ BitVec 32))) (exists ((v___ldv_list_add_~next.offset_16 (_ BitVec 32)) (|v_mutex_lock_ldv_list_add_~new#1.base_13| (_ BitVec 32))) (and (bvult |v_mutex_lock_ldv_list_add_~new#1.base_13| |c_#StackHeapBarrier|) (= (let ((.cse3 (bvadd (_ bv4 32) |c_mutex_lock_ldv_list_add_~new#1.offset|)) (.cse4 (bvadd (_ bv4 32) v___ldv_list_add_~next.offset_19))) (select (let ((.cse0 (let ((.cse1 (let ((.cse2 (store |c_#memory_$Pointer$.base| |c_mutex_lock_ldv_list_add_#t~mem8#1.base| (store (select |c_#memory_$Pointer$.base| |c_mutex_lock_ldv_list_add_#t~mem8#1.base|) .cse4 |c_mutex_lock_ldv_list_add_~new#1.base|)))) (store .cse2 |c_mutex_lock_ldv_list_add_~new#1.base| (store (store (select .cse2 |c_mutex_lock_ldv_list_add_~new#1.base|) |c_mutex_lock_ldv_list_add_~new#1.offset| |c_mutex_lock_ldv_list_add_#t~mem8#1.base|) .cse3 |c_mutex_lock_ldv_list_add_~head#1.base|))))) (store .cse1 |c_mutex_lock_ldv_list_add_~head#1.base| (store (select .cse1 |c_mutex_lock_ldv_list_add_~head#1.base|) |c_mutex_lock_ldv_list_add_~head#1.offset| |c_mutex_lock_ldv_list_add_~new#1.base|))))) (select .cse0 (select (select .cse0 |c_~#mutexes~0.base|) |c_~#mutexes~0.offset|))) (bvadd (_ bv4294967292 32) (select (select (let ((.cse5 (let ((.cse6 (store |v_#memory_$Pointer$.offset_91| |c_mutex_lock_ldv_list_add_#t~mem8#1.base| (store (select |v_#memory_$Pointer$.offset_91| |c_mutex_lock_ldv_list_add_#t~mem8#1.base|) .cse4 |c_mutex_lock_ldv_list_add_~new#1.offset|)))) (store .cse6 |c_mutex_lock_ldv_list_add_~new#1.base| (store (store (select .cse6 |c_mutex_lock_ldv_list_add_~new#1.base|) |c_mutex_lock_ldv_list_add_~new#1.offset| v___ldv_list_add_~next.offset_19) .cse3 |c_mutex_lock_ldv_list_add_~head#1.offset|))))) (store .cse5 |c_mutex_lock_ldv_list_add_~head#1.base| (store (select .cse5 |c_mutex_lock_ldv_list_add_~head#1.base|) |c_mutex_lock_ldv_list_add_~head#1.offset| |c_mutex_lock_ldv_list_add_~new#1.offset|))) |c_~#mutexes~0.base|) |c_~#mutexes~0.offset|)))) (select (select (let ((.cse7 (let ((.cse10 (store |c_old(#memory_$Pointer$.base)| |v_mutex_lock_ldv_list_add_~new#1.base_13| (store (select |c_old(#memory_$Pointer$.base)| |v_mutex_lock_ldv_list_add_~new#1.base_13|) (_ bv0 32) |c_mutex_lock_#in~m#1.base|)))) (let ((.cse9 (select (select .cse10 |c_~#mutexes~0.base|) |c_~#mutexes~0.offset|))) (let ((.cse8 (store .cse10 .cse9 (store (select .cse10 .cse9) (bvadd (_ bv4 32) v___ldv_list_add_~next.offset_16) |v_mutex_lock_ldv_list_add_~new#1.base_13|)))) (store .cse8 |v_mutex_lock_ldv_list_add_~new#1.base_13| (store (store (select .cse8 |v_mutex_lock_ldv_list_add_~new#1.base_13|) (_ bv4 32) .cse9) (_ bv8 32) |c_~#mutexes~0.base|))))))) (store .cse7 |c_~#mutexes~0.base| (store (select .cse7 |c_~#mutexes~0.base|) |c_~#mutexes~0.offset| |v_mutex_lock_ldv_list_add_~new#1.base_13|))) |v_mutex_lock_ldv_list_add_~new#1.base_13|) (_ bv0 32)))))) is different from false [2021-11-12 23:00:24,405 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 1365 treesize of output 1333 [2021-11-12 23:00:43,618 WARN L860 $PredicateComparison]: unable to prove that (forall ((v_arrayElimCell_38 (_ BitVec 32)) (|v_mutex_lock_#in~m#1.base_BEFORE_CALL_10| (_ BitVec 32))) (or (exists ((|v_#memory_$Pointer$.offset_91| (Array (_ BitVec 32) (Array (_ BitVec 32) (_ BitVec 32)))) (v___ldv_list_add_~next.offset_19 (_ BitVec 32))) (forall ((|v_mutex_lock_ldv_list_add_~new#1.base_13| (_ BitVec 32))) (or (let ((.cse0 (let ((.cse7 (bvadd |c___ldv_list_add_#in~new.offset| (_ bv4 32))) (.cse8 (bvadd (_ bv4 32) v___ldv_list_add_~next.offset_19))) (select (let ((.cse4 (let ((.cse5 (let ((.cse6 (store |c_old(#memory_$Pointer$.base)| |c___ldv_list_add_#in~next.base| (store (select |c_old(#memory_$Pointer$.base)| |c___ldv_list_add_#in~next.base|) .cse8 |c___ldv_list_add_#in~new.base|)))) (store .cse6 |c___ldv_list_add_#in~new.base| (store (store (select .cse6 |c___ldv_list_add_#in~new.base|) |c___ldv_list_add_#in~new.offset| |c___ldv_list_add_#in~next.base|) .cse7 |c___ldv_list_add_#in~prev.base|))))) (store .cse5 |c___ldv_list_add_#in~prev.base| (store (select .cse5 |c___ldv_list_add_#in~prev.base|) |c___ldv_list_add_#in~prev.offset| |c___ldv_list_add_#in~new.base|))))) (select .cse4 (select (select .cse4 |c_~#mutexes~0.base|) |c_~#mutexes~0.offset|))) (bvadd (_ bv4294967292 32) (select (select (let ((.cse9 (let ((.cse10 (store |v_#memory_$Pointer$.offset_91| |c___ldv_list_add_#in~next.base| (store (select |v_#memory_$Pointer$.offset_91| |c___ldv_list_add_#in~next.base|) .cse8 |c___ldv_list_add_#in~new.offset|)))) (store .cse10 |c___ldv_list_add_#in~new.base| (store (store (select .cse10 |c___ldv_list_add_#in~new.base|) |c___ldv_list_add_#in~new.offset| v___ldv_list_add_~next.offset_19) .cse7 |c___ldv_list_add_#in~prev.offset|))))) (store .cse9 |c___ldv_list_add_#in~prev.base| (store (select .cse9 |c___ldv_list_add_#in~prev.base|) |c___ldv_list_add_#in~prev.offset| |c___ldv_list_add_#in~new.offset|))) |c_~#mutexes~0.base|) |c_~#mutexes~0.offset|)))))) (let ((.cse2 (= |c_~#mutexes~0.offset| (_ bv0 32))) (.cse3 (= |v_mutex_lock_ldv_list_add_~new#1.base_13| |c_~#mutexes~0.base|)) (.cse1 (not (= .cse0 |v_mutex_lock_ldv_list_add_~new#1.base_13|)))) (and (or (and (not (= |v_mutex_lock_#in~m#1.base_BEFORE_CALL_10| .cse0)) (or (not (= v_arrayElimCell_38 |v_mutex_lock_ldv_list_add_~new#1.base_13|)) .cse1)) (and .cse2 .cse3)) (or (not .cse2) (not .cse3) .cse1)))) (not (bvult |v_mutex_lock_ldv_list_add_~new#1.base_13| |c_#StackHeapBarrier|))))) (exists ((v_prenex_4 (_ BitVec 32))) (and (bvult v_prenex_4 |c_#StackHeapBarrier|) (let ((.cse14 (select (select |c_#memory_$Pointer$.base| (select (select |c_#memory_$Pointer$.base| |c_~#mutexes~0.base|) |c_~#mutexes~0.offset|)) (bvadd (_ bv4294967292 32) (select (select |c_#memory_$Pointer$.offset| |c_~#mutexes~0.base|) |c_~#mutexes~0.offset|))))) (let ((.cse11 (= |c_~#mutexes~0.offset| (_ bv0 32))) (.cse13 (= .cse14 v_prenex_4)) (.cse12 (= v_prenex_4 |c_~#mutexes~0.base|))) (or (and (or (not .cse11) (not .cse12)) (or (and (= v_arrayElimCell_38 v_prenex_4) .cse13) (= .cse14 |v_mutex_lock_#in~m#1.base_BEFORE_CALL_10|))) (and .cse11 .cse13 .cse12)))))))) is different from true [2021-11-12 23:00:57,183 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 557965 treesize of output 557197 [2021-11-12 23:02:34,365 WARN L860 $PredicateComparison]: unable to prove that (forall ((v_arrayElimCell_38 (_ BitVec 32)) (|v_mutex_lock_#in~m#1.base_BEFORE_CALL_10| (_ BitVec 32)) (v___ldv_list_add_~next.offset_20 (_ BitVec 32)) (v_arrayElimCell_39 (_ BitVec 32))) (or (exists ((|v_#memory_$Pointer$.offset_91| (Array (_ BitVec 32) (Array (_ BitVec 32) (_ BitVec 32)))) (v___ldv_list_add_~next.offset_19 (_ BitVec 32))) (forall ((|v_mutex_lock_ldv_list_add_~new#1.base_13| (_ BitVec 32))) (or (let ((.cse0 (let ((.cse7 (bvadd |c___ldv_list_add_#in~new.offset| (_ bv4 32))) (.cse8 (bvadd (_ bv4 32) v___ldv_list_add_~next.offset_19))) (select (let ((.cse4 (let ((.cse5 (let ((.cse6 (store |c_old(#memory_$Pointer$.base)| |c___ldv_list_add_#in~next.base| (store (select |c_old(#memory_$Pointer$.base)| |c___ldv_list_add_#in~next.base|) .cse8 |c___ldv_list_add_#in~new.base|)))) (store .cse6 |c___ldv_list_add_#in~new.base| (store (store (select .cse6 |c___ldv_list_add_#in~new.base|) |c___ldv_list_add_#in~new.offset| |c___ldv_list_add_#in~next.base|) .cse7 |c___ldv_list_add_#in~prev.base|))))) (store .cse5 |c___ldv_list_add_#in~prev.base| (store (select .cse5 |c___ldv_list_add_#in~prev.base|) |c___ldv_list_add_#in~prev.offset| |c___ldv_list_add_#in~new.base|))))) (select .cse4 (select (select .cse4 |c_~#mutexes~0.base|) |c_~#mutexes~0.offset|))) (bvadd (_ bv4294967292 32) (select (select (let ((.cse9 (let ((.cse10 (store |v_#memory_$Pointer$.offset_91| |c___ldv_list_add_#in~next.base| (store (select |v_#memory_$Pointer$.offset_91| |c___ldv_list_add_#in~next.base|) .cse8 |c___ldv_list_add_#in~new.offset|)))) (store .cse10 |c___ldv_list_add_#in~new.base| (store (store (select .cse10 |c___ldv_list_add_#in~new.base|) |c___ldv_list_add_#in~new.offset| v___ldv_list_add_~next.offset_19) .cse7 |c___ldv_list_add_#in~prev.offset|))))) (store .cse9 |c___ldv_list_add_#in~prev.base| (store (select .cse9 |c___ldv_list_add_#in~prev.base|) |c___ldv_list_add_#in~prev.offset| |c___ldv_list_add_#in~new.offset|))) |c_~#mutexes~0.base|) |c_~#mutexes~0.offset|)))))) (let ((.cse2 (= |c_~#mutexes~0.offset| (_ bv0 32))) (.cse3 (= |v_mutex_lock_ldv_list_add_~new#1.base_13| |c_~#mutexes~0.base|)) (.cse1 (not (= .cse0 |v_mutex_lock_ldv_list_add_~new#1.base_13|)))) (and (or (and (not (= |v_mutex_lock_#in~m#1.base_BEFORE_CALL_10| .cse0)) (or (not (= v_arrayElimCell_38 |v_mutex_lock_ldv_list_add_~new#1.base_13|)) .cse1)) (and .cse2 .cse3)) (or (not .cse2) (not .cse3) .cse1)))) (not (bvult |v_mutex_lock_ldv_list_add_~new#1.base_13| |c_#StackHeapBarrier|))))) (exists ((v_prenex_4 (_ BitVec 32))) (and (bvult v_prenex_4 |c_#StackHeapBarrier|) (let ((.cse11 (= |c___ldv_list_add_#in~new.base| |c_~#mutexes~0.base|)) (.cse35 (bvadd |c___ldv_list_add_#in~new.offset| (_ bv4 32))) (.cse39 (bvadd (_ bv4 32) v___ldv_list_add_~next.offset_20))) (let ((.cse27 (= |c_~#mutexes~0.offset| |c___ldv_list_add_#in~prev.offset|)) (.cse26 (= |c___ldv_list_add_#in~prev.base| |c_~#mutexes~0.base|)) (.cse20 (= |c___ldv_list_add_#in~next.base| |c_~#mutexes~0.base|)) (.cse19 (= |c_~#mutexes~0.offset| .cse39)) (.cse33 (let ((.cse36 (let ((.cse37 (let ((.cse38 (store |c_#memory_$Pointer$.base| |c___ldv_list_add_#in~next.base| (store (select |c_#memory_$Pointer$.base| |c___ldv_list_add_#in~next.base|) .cse39 |c___ldv_list_add_#in~new.base|)))) (store .cse38 |c___ldv_list_add_#in~new.base| (store (store (select .cse38 |c___ldv_list_add_#in~new.base|) |c___ldv_list_add_#in~new.offset| |c___ldv_list_add_#in~next.base|) .cse35 |c___ldv_list_add_#in~prev.base|))))) (store .cse37 |c___ldv_list_add_#in~prev.base| (store (select .cse37 |c___ldv_list_add_#in~prev.base|) |c___ldv_list_add_#in~prev.offset| |c___ldv_list_add_#in~new.base|))))) (select .cse36 (select (select .cse36 |c_~#mutexes~0.base|) |c_~#mutexes~0.offset|)))) (.cse24 (= |c___ldv_list_add_#in~new.offset| |c_~#mutexes~0.offset|)) (.cse34 (not .cse11)) (.cse15 (= |c_~#mutexes~0.offset| .cse35))) (let ((.cse17 (or .cse34 (not .cse15))) (.cse18 (or .cse34 (not .cse24))) (.cse23 (select .cse33 (bvadd (_ bv4294967292 32) v_arrayElimCell_39))) (.cse22 (or (not .cse20) (not .cse19))) (.cse25 (select .cse33 (bvadd (_ bv4294967292 32) v___ldv_list_add_~next.offset_20))) (.cse12 (or (not .cse27) (not .cse26))) (.cse13 (select .cse33 (bvadd (_ bv4294967292 32) |c___ldv_list_add_#in~prev.offset|))) (.cse28 (select .cse33 (bvadd |c___ldv_list_add_#in~new.offset| (_ bv4294967292 32))))) (let ((.cse29 (= |c_~#mutexes~0.offset| (_ bv0 32))) (.cse16 (let ((.cse31 (= v_prenex_4 .cse28))) (let ((.cse32 (and .cse31 .cse26 .cse27))) (or (and .cse17 (or (and .cse12 (or (and .cse18 (or (and .cse31 .cse19 .cse20) (and (= .cse23 v_prenex_4) .cse22))) (and (= v_prenex_4 .cse25) .cse24 .cse11))) .cse32)) (and .cse11 .cse15 (or (and .cse12 (= v_prenex_4 .cse13)) .cse32)))))) (.cse30 (= v_prenex_4 |c_~#mutexes~0.base|))) (or (and (let ((.cse21 (= |v_mutex_lock_#in~m#1.base_BEFORE_CALL_10| .cse28))) (let ((.cse14 (and .cse26 .cse27 .cse21))) (or (and .cse11 (or (and .cse12 (= |v_mutex_lock_#in~m#1.base_BEFORE_CALL_10| .cse13)) .cse14) .cse15) (and (= v_arrayElimCell_38 v_prenex_4) .cse16) (and .cse17 (or (and .cse12 (or (and .cse18 (or (and .cse19 .cse20 .cse21) (and .cse22 (= |v_mutex_lock_#in~m#1.base_BEFORE_CALL_10| .cse23)))) (and .cse24 .cse11 (= |v_mutex_lock_#in~m#1.base_BEFORE_CALL_10| .cse25)))) .cse14))))) (or (not .cse29) (not .cse30))) (and .cse29 .cse16 .cse30)))))))))) is different from true [2021-11-12 23:02:38,476 WARN L838 $PredicateComparison]: unable to prove that (forall ((|v_#memory_$Pointer$.offset_91| (Array (_ BitVec 32) (Array (_ BitVec 32) (_ BitVec 32)))) (v___ldv_list_add_~next.offset_19 (_ BitVec 32))) (exists ((v___ldv_list_add_~next.offset_16 (_ BitVec 32)) (|v_mutex_lock_ldv_list_add_~new#1.base_13| (_ BitVec 32))) (and (= (let ((.cse6 (store |c_#memory_$Pointer$.base| |c_mutex_lock_ldv_set_add_#t~ret20#1.base| (store (select |c_#memory_$Pointer$.base| |c_mutex_lock_ldv_set_add_#t~ret20#1.base|) |c_mutex_lock_ldv_set_add_#t~ret20#1.offset| |c_mutex_lock_ldv_set_add_~new#1.base|)))) (let ((.cse5 (bvadd (_ bv8 32) |c_mutex_lock_ldv_set_add_#t~ret20#1.offset|)) (.cse4 (select (select .cse6 |c_mutex_lock_ldv_set_add_~s#1.base|) |c_mutex_lock_ldv_set_add_~s#1.offset|)) (.cse7 (bvadd (_ bv4 32) v___ldv_list_add_~next.offset_19)) (.cse3 (bvadd (_ bv4 32) |c_mutex_lock_ldv_set_add_#t~ret20#1.offset|))) (select (let ((.cse0 (let ((.cse1 (let ((.cse2 (store .cse6 .cse4 (store (select .cse6 .cse4) .cse7 |c_mutex_lock_ldv_set_add_#t~ret20#1.base|)))) (store .cse2 |c_mutex_lock_ldv_set_add_#t~ret20#1.base| (store (store (select .cse2 |c_mutex_lock_ldv_set_add_#t~ret20#1.base|) .cse3 .cse4) .cse5 |c_mutex_lock_ldv_set_add_~s#1.base|))))) (store .cse1 |c_mutex_lock_ldv_set_add_~s#1.base| (store (select .cse1 |c_mutex_lock_ldv_set_add_~s#1.base|) |c_mutex_lock_ldv_set_add_~s#1.offset| |c_mutex_lock_ldv_set_add_#t~ret20#1.base|))))) (select .cse0 (select (select .cse0 |c_~#mutexes~0.base|) |c_~#mutexes~0.offset|))) (bvadd (_ bv4294967292 32) (select (select (let ((.cse8 (let ((.cse9 (store |v_#memory_$Pointer$.offset_91| .cse4 (store (select |v_#memory_$Pointer$.offset_91| .cse4) .cse7 .cse3)))) (store .cse9 |c_mutex_lock_ldv_set_add_#t~ret20#1.base| (store (store (select .cse9 |c_mutex_lock_ldv_set_add_#t~ret20#1.base|) .cse3 v___ldv_list_add_~next.offset_19) .cse5 |c_mutex_lock_ldv_set_add_~s#1.offset|))))) (store .cse8 |c_mutex_lock_ldv_set_add_~s#1.base| (store (select .cse8 |c_mutex_lock_ldv_set_add_~s#1.base|) |c_mutex_lock_ldv_set_add_~s#1.offset| .cse3))) |c_~#mutexes~0.base|) |c_~#mutexes~0.offset|))))) (select (select (let ((.cse10 (let ((.cse13 (store |c_old(#memory_$Pointer$.base)| |v_mutex_lock_ldv_list_add_~new#1.base_13| (store (select |c_old(#memory_$Pointer$.base)| |v_mutex_lock_ldv_list_add_~new#1.base_13|) (_ bv0 32) |c_mutex_lock_#in~m#1.base|)))) (let ((.cse12 (select (select .cse13 |c_~#mutexes~0.base|) |c_~#mutexes~0.offset|))) (let ((.cse11 (store .cse13 .cse12 (store (select .cse13 .cse12) (bvadd (_ bv4 32) v___ldv_list_add_~next.offset_16) |v_mutex_lock_ldv_list_add_~new#1.base_13|)))) (store .cse11 |v_mutex_lock_ldv_list_add_~new#1.base_13| (store (store (select .cse11 |v_mutex_lock_ldv_list_add_~new#1.base_13|) (_ bv4 32) .cse12) (_ bv8 32) |c_~#mutexes~0.base|))))))) (store .cse10 |c_~#mutexes~0.base| (store (select .cse10 |c_~#mutexes~0.base|) |c_~#mutexes~0.offset| |v_mutex_lock_ldv_list_add_~new#1.base_13|))) |v_mutex_lock_ldv_list_add_~new#1.base_13|) (_ bv0 32))) (bvult |v_mutex_lock_ldv_list_add_~new#1.base_13| |c_#StackHeapBarrier|)))) is different from false [2021-11-12 23:02:40,561 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 51055 treesize of output 51039 [2021-11-12 23:05:38,091 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22642 treesize of output 22638 [2021-11-12 23:05:38,214 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 82927 treesize of output 82551