./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 0f8a17c6 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7887b76d-7446-4243-a4f6-e077207d29a5/bin/utaipan-UbGMyvGFUs/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7887b76d-7446-4243-a4f6-e077207d29a5/bin/utaipan-UbGMyvGFUs/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7887b76d-7446-4243-a4f6-e077207d29a5/bin/utaipan-UbGMyvGFUs/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7887b76d-7446-4243-a4f6-e077207d29a5/bin/utaipan-UbGMyvGFUs/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_7887b76d-7446-4243-a4f6-e077207d29a5/bin/utaipan-UbGMyvGFUs/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7887b76d-7446-4243-a4f6-e077207d29a5/bin/utaipan-UbGMyvGFUs --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-0f8a17c [2021-11-19 14:14:36,208 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-19 14:14:36,211 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-19 14:14:36,261 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-19 14:14:36,262 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-19 14:14:36,267 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-19 14:14:36,268 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-19 14:14:36,272 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-19 14:14:36,274 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-19 14:14:36,280 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-19 14:14:36,281 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-19 14:14:36,282 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-19 14:14:36,283 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-19 14:14:36,285 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-19 14:14:36,287 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-19 14:14:36,293 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-19 14:14:36,294 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-19 14:14:36,295 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-19 14:14:36,297 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-19 14:14:36,308 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-19 14:14:36,310 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-19 14:14:36,311 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-19 14:14:36,314 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-19 14:14:36,315 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-19 14:14:36,324 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-19 14:14:36,324 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-19 14:14:36,325 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-19 14:14:36,327 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-19 14:14:36,327 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-19 14:14:36,329 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-19 14:14:36,329 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-19 14:14:36,330 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-19 14:14:36,332 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-19 14:14:36,333 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-19 14:14:36,335 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-19 14:14:36,335 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-19 14:14:36,335 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-19 14:14:36,336 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-19 14:14:36,336 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-19 14:14:36,337 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-19 14:14:36,338 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-19 14:14:36,338 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7887b76d-7446-4243-a4f6-e077207d29a5/bin/utaipan-UbGMyvGFUs/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-11-19 14:14:36,380 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-19 14:14:36,380 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-19 14:14:36,382 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-19 14:14:36,382 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-19 14:14:36,382 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-19 14:14:36,383 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-19 14:14:36,383 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-19 14:14:36,383 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-19 14:14:36,389 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-19 14:14:36,390 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-19 14:14:36,391 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-19 14:14:36,391 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-19 14:14:36,391 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-19 14:14:36,391 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-19 14:14:36,392 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-19 14:14:36,392 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-11-19 14:14:36,393 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-19 14:14:36,393 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-19 14:14:36,393 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-19 14:14:36,393 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-19 14:14:36,394 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-19 14:14:36,394 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-19 14:14:36,394 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-19 14:14:36,394 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-19 14:14:36,395 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-19 14:14:36,395 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-19 14:14:36,395 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-19 14:14:36,395 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-19 14:14:36,396 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-19 14:14:36,397 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-19 14:14:36,397 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-19 14:14:36,398 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-19 14:14:36,398 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-19 14:14:36,398 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-19 14:14:36,398 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-19 14:14:36,399 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-19 14:14:36,399 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-19 14:14:36,399 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-19 14:14:36,399 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-19 14:14:36,400 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-19 14:14:36,400 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_7887b76d-7446-4243-a4f6-e077207d29a5/bin/utaipan-UbGMyvGFUs/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7887b76d-7446-4243-a4f6-e077207d29a5/bin/utaipan-UbGMyvGFUs Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d82f1b23bea4834b28dfbe602ddf1f3e06a3ee60a847e3002a9403f092f2c830 [2021-11-19 14:14:36,680 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-19 14:14:36,701 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-19 14:14:36,703 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-19 14:14:36,705 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-19 14:14:36,706 INFO L275 PluginConnector]: CDTParser initialized [2021-11-19 14:14:36,707 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7887b76d-7446-4243-a4f6-e077207d29a5/bin/utaipan-UbGMyvGFUs/../../sv-benchmarks/c/ldv-sets/test_mutex_double_unlock.i [2021-11-19 14:14:36,769 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7887b76d-7446-4243-a4f6-e077207d29a5/bin/utaipan-UbGMyvGFUs/data/fb2a15295/20e7276a9fa04cb4908cc0cc7663b414/FLAGea5dfa75d [2021-11-19 14:14:37,247 INFO L306 CDTParser]: Found 1 translation units. [2021-11-19 14:14:37,248 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7887b76d-7446-4243-a4f6-e077207d29a5/sv-benchmarks/c/ldv-sets/test_mutex_double_unlock.i [2021-11-19 14:14:37,262 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7887b76d-7446-4243-a4f6-e077207d29a5/bin/utaipan-UbGMyvGFUs/data/fb2a15295/20e7276a9fa04cb4908cc0cc7663b414/FLAGea5dfa75d [2021-11-19 14:14:37,580 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7887b76d-7446-4243-a4f6-e077207d29a5/bin/utaipan-UbGMyvGFUs/data/fb2a15295/20e7276a9fa04cb4908cc0cc7663b414 [2021-11-19 14:14:37,582 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-19 14:14:37,585 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-19 14:14:37,589 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-19 14:14:37,590 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-19 14:14:37,594 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-19 14:14:37,595 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 02:14:37" (1/1) ... [2021-11-19 14:14:37,597 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@232ccd7c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:14:37, skipping insertion in model container [2021-11-19 14:14:37,597 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 02:14:37" (1/1) ... [2021-11-19 14:14:37,605 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-19 14:14:37,674 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-19 14:14:38,083 WARN L230 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_7887b76d-7446-4243-a4f6-e077207d29a5/sv-benchmarks/c/ldv-sets/test_mutex_double_unlock.i[25842,25855] [2021-11-19 14:14:38,091 WARN L230 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_7887b76d-7446-4243-a4f6-e077207d29a5/sv-benchmarks/c/ldv-sets/test_mutex_double_unlock.i[25967,25980] [2021-11-19 14:14:38,093 WARN L230 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_7887b76d-7446-4243-a4f6-e077207d29a5/sv-benchmarks/c/ldv-sets/test_mutex_double_unlock.i[26082,26095] [2021-11-19 14:14:38,102 INFO L207 PostProcessor]: Analyzing one entry point: main [2021-11-19 14:14:38,114 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) [2021-11-19 14:14:38,114 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@3f2ae7ce and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:14:38, skipping insertion in model container [2021-11-19 14:14:38,114 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-19 14:14:38,115 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2021-11-19 14:14:38,117 INFO L158 Benchmark]: Toolchain (without parser) took 530.99ms. Allocated memory is still 117.4MB. Free memory was 74.4MB in the beginning and 88.8MB in the end (delta: -14.4MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2021-11-19 14:14:38,118 INFO L158 Benchmark]: CDTParser took 0.24ms. Allocated memory is still 117.4MB. Free memory is still 93.1MB. There was no memory consumed. Max. memory is 16.1GB. [2021-11-19 14:14:38,120 INFO L158 Benchmark]: CACSL2BoogieTranslator took 525.60ms. Allocated memory is still 117.4MB. Free memory was 74.2MB in the beginning and 88.8MB in the end (delta: -14.6MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2021-11-19 14:14:38,122 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24ms. Allocated memory is still 117.4MB. Free memory is still 93.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 525.60ms. Allocated memory is still 117.4MB. Free memory was 74.2MB in the beginning and 88.8MB in the end (delta: -14.6MB). Peak memory consumption was 10.5MB. 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_7887b76d-7446-4243-a4f6-e077207d29a5/bin/utaipan-UbGMyvGFUs/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7887b76d-7446-4243-a4f6-e077207d29a5/bin/utaipan-UbGMyvGFUs/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7887b76d-7446-4243-a4f6-e077207d29a5/bin/utaipan-UbGMyvGFUs/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7887b76d-7446-4243-a4f6-e077207d29a5/bin/utaipan-UbGMyvGFUs/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_7887b76d-7446-4243-a4f6-e077207d29a5/bin/utaipan-UbGMyvGFUs/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7887b76d-7446-4243-a4f6-e077207d29a5/bin/utaipan-UbGMyvGFUs --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-0f8a17c [2021-11-19 14:14:40,398 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-19 14:14:40,400 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-19 14:14:40,434 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-19 14:14:40,435 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-19 14:14:40,436 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-19 14:14:40,438 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-19 14:14:40,441 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-19 14:14:40,443 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-19 14:14:40,444 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-19 14:14:40,445 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-19 14:14:40,447 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-19 14:14:40,447 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-19 14:14:40,449 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-19 14:14:40,450 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-19 14:14:40,452 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-19 14:14:40,453 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-19 14:14:40,454 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-19 14:14:40,461 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-19 14:14:40,463 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-19 14:14:40,465 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-19 14:14:40,469 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-19 14:14:40,470 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-19 14:14:40,472 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-19 14:14:40,475 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-19 14:14:40,476 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-19 14:14:40,476 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-19 14:14:40,478 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-19 14:14:40,478 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-19 14:14:40,479 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-19 14:14:40,480 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-19 14:14:40,481 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-19 14:14:40,482 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-19 14:14:40,483 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-19 14:14:40,484 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-19 14:14:40,485 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-19 14:14:40,486 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-19 14:14:40,486 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-19 14:14:40,486 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-19 14:14:40,488 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-19 14:14:40,489 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-19 14:14:40,490 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7887b76d-7446-4243-a4f6-e077207d29a5/bin/utaipan-UbGMyvGFUs/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2021-11-19 14:14:40,518 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-19 14:14:40,520 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-19 14:14:40,522 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-19 14:14:40,522 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-19 14:14:40,522 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-19 14:14:40,525 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-19 14:14:40,525 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-19 14:14:40,525 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-19 14:14:40,526 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-19 14:14:40,526 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-19 14:14:40,529 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-19 14:14:40,529 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-19 14:14:40,529 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-19 14:14:40,530 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-19 14:14:40,530 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-19 14:14:40,530 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-19 14:14:40,530 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-19 14:14:40,530 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-19 14:14:40,531 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-19 14:14:40,531 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-19 14:14:40,531 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-19 14:14:40,531 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-19 14:14:40,532 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-19 14:14:40,532 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-19 14:14:40,532 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-19 14:14:40,532 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-19 14:14:40,533 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-19 14:14:40,533 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-19 14:14:40,533 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-19 14:14:40,533 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-19 14:14:40,534 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-19 14:14:40,534 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-11-19 14:14:40,534 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-19 14:14:40,534 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-19 14:14:40,535 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-19 14:14:40,535 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-19 14:14:40,535 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_7887b76d-7446-4243-a4f6-e077207d29a5/bin/utaipan-UbGMyvGFUs/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7887b76d-7446-4243-a4f6-e077207d29a5/bin/utaipan-UbGMyvGFUs Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d82f1b23bea4834b28dfbe602ddf1f3e06a3ee60a847e3002a9403f092f2c830 [2021-11-19 14:14:40,928 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-19 14:14:40,953 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-19 14:14:40,956 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-19 14:14:40,957 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-19 14:14:40,958 INFO L275 PluginConnector]: CDTParser initialized [2021-11-19 14:14:40,960 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7887b76d-7446-4243-a4f6-e077207d29a5/bin/utaipan-UbGMyvGFUs/../../sv-benchmarks/c/ldv-sets/test_mutex_double_unlock.i [2021-11-19 14:14:41,042 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7887b76d-7446-4243-a4f6-e077207d29a5/bin/utaipan-UbGMyvGFUs/data/70c7126ea/046cfd1ea32948698e2fdd847945ef38/FLAG1a928241d [2021-11-19 14:14:41,723 INFO L306 CDTParser]: Found 1 translation units. [2021-11-19 14:14:41,724 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7887b76d-7446-4243-a4f6-e077207d29a5/sv-benchmarks/c/ldv-sets/test_mutex_double_unlock.i [2021-11-19 14:14:41,744 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7887b76d-7446-4243-a4f6-e077207d29a5/bin/utaipan-UbGMyvGFUs/data/70c7126ea/046cfd1ea32948698e2fdd847945ef38/FLAG1a928241d [2021-11-19 14:14:41,964 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7887b76d-7446-4243-a4f6-e077207d29a5/bin/utaipan-UbGMyvGFUs/data/70c7126ea/046cfd1ea32948698e2fdd847945ef38 [2021-11-19 14:14:41,966 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-19 14:14:41,968 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-19 14:14:41,969 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-19 14:14:41,969 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-19 14:14:41,982 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-19 14:14:41,982 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 02:14:41" (1/1) ... [2021-11-19 14:14:41,985 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7aa28a42 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:14:41, skipping insertion in model container [2021-11-19 14:14:41,986 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 02:14:41" (1/1) ... [2021-11-19 14:14:41,993 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-19 14:14:42,041 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-19 14:14:42,475 WARN L230 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_7887b76d-7446-4243-a4f6-e077207d29a5/sv-benchmarks/c/ldv-sets/test_mutex_double_unlock.i[25842,25855] [2021-11-19 14:14:42,484 WARN L230 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_7887b76d-7446-4243-a4f6-e077207d29a5/sv-benchmarks/c/ldv-sets/test_mutex_double_unlock.i[25967,25980] [2021-11-19 14:14:42,487 WARN L230 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_7887b76d-7446-4243-a4f6-e077207d29a5/sv-benchmarks/c/ldv-sets/test_mutex_double_unlock.i[26082,26095] [2021-11-19 14:14:42,492 INFO L207 PostProcessor]: Analyzing one entry point: main [2021-11-19 14:14:42,506 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-11-19 14:14:42,527 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-19 14:14:42,588 WARN L230 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_7887b76d-7446-4243-a4f6-e077207d29a5/sv-benchmarks/c/ldv-sets/test_mutex_double_unlock.i[25842,25855] [2021-11-19 14:14:42,590 WARN L230 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_7887b76d-7446-4243-a4f6-e077207d29a5/sv-benchmarks/c/ldv-sets/test_mutex_double_unlock.i[25967,25980] [2021-11-19 14:14:42,593 WARN L230 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_7887b76d-7446-4243-a4f6-e077207d29a5/sv-benchmarks/c/ldv-sets/test_mutex_double_unlock.i[26082,26095] [2021-11-19 14:14:42,596 INFO L207 PostProcessor]: Analyzing one entry point: main [2021-11-19 14:14:42,603 INFO L203 MainTranslator]: Completed pre-run [2021-11-19 14:14:42,677 WARN L230 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_7887b76d-7446-4243-a4f6-e077207d29a5/sv-benchmarks/c/ldv-sets/test_mutex_double_unlock.i[25842,25855] [2021-11-19 14:14:42,684 WARN L230 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_7887b76d-7446-4243-a4f6-e077207d29a5/sv-benchmarks/c/ldv-sets/test_mutex_double_unlock.i[25967,25980] [2021-11-19 14:14:42,685 WARN L230 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_7887b76d-7446-4243-a4f6-e077207d29a5/sv-benchmarks/c/ldv-sets/test_mutex_double_unlock.i[26082,26095] [2021-11-19 14:14:42,688 INFO L207 PostProcessor]: Analyzing one entry point: main [2021-11-19 14:14:42,736 INFO L208 MainTranslator]: Completed translation [2021-11-19 14:14:42,737 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:14:42 WrapperNode [2021-11-19 14:14:42,737 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-19 14:14:42,738 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-19 14:14:42,739 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-19 14:14:42,739 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-19 14:14:42,746 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:14:42" (1/1) ... [2021-11-19 14:14:42,788 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:14:42" (1/1) ... [2021-11-19 14:14:42,824 INFO L137 Inliner]: procedures = 141, calls = 57, calls flagged for inlining = 14, calls inlined = 13, statements flattened = 124 [2021-11-19 14:14:42,825 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-19 14:14:42,827 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-19 14:14:42,827 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-19 14:14:42,827 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-19 14:14:42,835 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:14:42" (1/1) ... [2021-11-19 14:14:42,839 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:14:42" (1/1) ... [2021-11-19 14:14:42,865 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:14:42" (1/1) ... [2021-11-19 14:14:42,868 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:14:42" (1/1) ... [2021-11-19 14:14:42,886 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:14:42" (1/1) ... [2021-11-19 14:14:42,898 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:14:42" (1/1) ... [2021-11-19 14:14:42,901 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:14:42" (1/1) ... [2021-11-19 14:14:42,911 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-19 14:14:42,915 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-19 14:14:42,915 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-19 14:14:42,915 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-19 14:14:42,916 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:14:42" (1/1) ... [2021-11-19 14:14:42,922 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-19 14:14:42,937 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7887b76d-7446-4243-a4f6-e077207d29a5/bin/utaipan-UbGMyvGFUs/z3 [2021-11-19 14:14:42,954 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7887b76d-7446-4243-a4f6-e077207d29a5/bin/utaipan-UbGMyvGFUs/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-19 14:14:42,984 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7887b76d-7446-4243-a4f6-e077207d29a5/bin/utaipan-UbGMyvGFUs/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-19 14:14:43,003 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_list_add [2021-11-19 14:14:43,003 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_list_add [2021-11-19 14:14:43,004 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2021-11-19 14:14:43,004 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2021-11-19 14:14:43,004 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-19 14:14:43,004 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock [2021-11-19 14:14:43,004 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock [2021-11-19 14:14:43,004 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-19 14:14:43,005 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-19 14:14:43,005 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-19 14:14:43,005 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_in_set [2021-11-19 14:14:43,005 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_in_set [2021-11-19 14:14:43,005 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-19 14:14:43,005 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-19 14:14:43,006 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-19 14:14:43,006 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-19 14:14:43,006 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_successful_malloc [2021-11-19 14:14:43,006 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_successful_malloc [2021-11-19 14:14:43,006 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-19 14:14:43,006 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-19 14:14:43,133 INFO L236 CfgBuilder]: Building ICFG [2021-11-19 14:14:43,135 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-19 14:14:43,611 INFO L277 CfgBuilder]: Performing block encoding [2021-11-19 14:14:43,620 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-19 14:14:43,621 INFO L301 CfgBuilder]: Removed 2 assume(true) statements. [2021-11-19 14:14:43,623 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 02:14:43 BoogieIcfgContainer [2021-11-19 14:14:43,624 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-19 14:14:43,628 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-19 14:14:43,628 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-19 14:14:43,631 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-19 14:14:43,631 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 02:14:41" (1/3) ... [2021-11-19 14:14:43,632 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@28e99cf2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 02:14:43, skipping insertion in model container [2021-11-19 14:14:43,632 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:14:42" (2/3) ... [2021-11-19 14:14:43,633 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@28e99cf2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 02:14:43, skipping insertion in model container [2021-11-19 14:14:43,633 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 02:14:43" (3/3) ... [2021-11-19 14:14:43,634 INFO L111 eAbstractionObserver]: Analyzing ICFG test_mutex_double_unlock.i [2021-11-19 14:14:43,640 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-19 14:14:43,641 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2021-11-19 14:14:43,707 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-19 14:14:43,727 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 [2021-11-19 14:14:43,733 INFO L340 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2021-11-19 14:14:43,752 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) [2021-11-19 14:14:43,758 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2021-11-19 14:14:43,759 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:14:43,759 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] [2021-11-19 14:14:43,760 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting mutex_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [mutex_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, mutex_lockErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-19 14:14:43,766 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:14:43,767 INFO L85 PathProgramCache]: Analyzing trace with hash 673246785, now seen corresponding path program 1 times [2021-11-19 14:14:43,791 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:14:43,791 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2055732222] [2021-11-19 14:14:43,792 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:14:43,793 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:14:43,793 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7887b76d-7446-4243-a4f6-e077207d29a5/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:14:43,796 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7887b76d-7446-4243-a4f6-e077207d29a5/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:14:43,800 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7887b76d-7446-4243-a4f6-e077207d29a5/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-11-19 14:14:43,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:14:43,925 INFO L263 TraceCheckSpWp]: Trace formula consists of 107 conjuncts, 1 conjunts are in the unsatisfiable core [2021-11-19 14:14:43,930 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:14:44,018 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-11-19 14:14:44,018 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:14:44,088 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-11-19 14:14:44,089 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 14:14:44,090 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2055732222] [2021-11-19 14:14:44,090 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2055732222] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 14:14:44,090 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 14:14:44,091 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2021-11-19 14:14:44,092 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [52010572] [2021-11-19 14:14:44,093 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 14:14:44,097 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-19 14:14:44,098 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 14:14:44,127 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-19 14:14:44,128 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-19 14:14:44,130 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) [2021-11-19 14:14:44,178 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:14:44,178 INFO L93 Difference]: Finished difference Result 130 states and 171 transitions. [2021-11-19 14:14:44,179 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-19 14:14:44,181 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 [2021-11-19 14:14:44,181 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:14:44,190 INFO L225 Difference]: With dead ends: 130 [2021-11-19 14:14:44,190 INFO L226 Difference]: Without dead ends: 62 [2021-11-19 14:14:44,196 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 [2021-11-19 14:14:44,209 INFO L933 BasicCegarLoop]: 77 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 77 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-19 14:14:44,211 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 77 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-19 14:14:44,228 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62 states. [2021-11-19 14:14:44,266 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62 to 62. [2021-11-19 14:14:44,267 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) [2021-11-19 14:14:44,274 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62 states to 62 states and 72 transitions. [2021-11-19 14:14:44,276 INFO L78 Accepts]: Start accepts. Automaton has 62 states and 72 transitions. Word has length 27 [2021-11-19 14:14:44,285 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:14:44,285 INFO L470 AbstractCegarLoop]: Abstraction has 62 states and 72 transitions. [2021-11-19 14:14:44,286 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) [2021-11-19 14:14:44,286 INFO L276 IsEmpty]: Start isEmpty. Operand 62 states and 72 transitions. [2021-11-19 14:14:44,288 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2021-11-19 14:14:44,289 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:14:44,289 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] [2021-11-19 14:14:44,307 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7887b76d-7446-4243-a4f6-e077207d29a5/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-11-19 14:14:44,507 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7887b76d-7446-4243-a4f6-e077207d29a5/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 14:14:44,509 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting mutex_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [mutex_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, mutex_lockErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-19 14:14:44,511 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:14:44,511 INFO L85 PathProgramCache]: Analyzing trace with hash -387762175, now seen corresponding path program 1 times [2021-11-19 14:14:44,512 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:14:44,512 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2052063993] [2021-11-19 14:14:44,513 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:14:44,514 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:14:44,516 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7887b76d-7446-4243-a4f6-e077207d29a5/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:14:44,517 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7887b76d-7446-4243-a4f6-e077207d29a5/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:14:44,555 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7887b76d-7446-4243-a4f6-e077207d29a5/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-11-19 14:14:44,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:14:44,647 INFO L263 TraceCheckSpWp]: Trace formula consists of 107 conjuncts, 16 conjunts are in the unsatisfiable core [2021-11-19 14:14:44,650 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:14:45,401 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2021-11-19 14:14:45,401 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:14:45,935 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2021-11-19 14:14:45,935 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 14:14:45,935 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2052063993] [2021-11-19 14:14:45,936 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2052063993] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 14:14:45,936 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 14:14:45,936 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 5] imperfect sequences [] total 8 [2021-11-19 14:14:45,936 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [448712688] [2021-11-19 14:14:45,937 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 14:14:45,938 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-19 14:14:45,938 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 14:14:45,939 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-19 14:14:45,939 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-11-19 14:14:45,939 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) [2021-11-19 14:14:46,966 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:14:46,967 INFO L93 Difference]: Finished difference Result 195 states and 243 transitions. [2021-11-19 14:14:46,967 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-11-19 14:14:46,968 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 [2021-11-19 14:14:46,968 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:14:46,972 INFO L225 Difference]: With dead ends: 195 [2021-11-19 14:14:46,972 INFO L226 Difference]: Without dead ends: 141 [2021-11-19 14:14:46,973 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 [2021-11-19 14:14:46,975 INFO L933 BasicCegarLoop]: 81 mSDtfsCounter, 103 mSDsluCounter, 206 mSDsCounter, 0 mSdLazyCounter, 198 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 111 SdHoareTripleChecker+Valid, 287 SdHoareTripleChecker+Invalid, 207 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 198 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2021-11-19 14:14:46,976 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [111 Valid, 287 Invalid, 207 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 198 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2021-11-19 14:14:46,977 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 141 states. [2021-11-19 14:14:46,997 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 141 to 120. [2021-11-19 14:14:46,997 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) [2021-11-19 14:14:46,999 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 120 states to 120 states and 156 transitions. [2021-11-19 14:14:47,000 INFO L78 Accepts]: Start accepts. Automaton has 120 states and 156 transitions. Word has length 27 [2021-11-19 14:14:47,000 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:14:47,000 INFO L470 AbstractCegarLoop]: Abstraction has 120 states and 156 transitions. [2021-11-19 14:14:47,001 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) [2021-11-19 14:14:47,001 INFO L276 IsEmpty]: Start isEmpty. Operand 120 states and 156 transitions. [2021-11-19 14:14:47,002 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2021-11-19 14:14:47,002 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:14:47,002 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] [2021-11-19 14:14:47,019 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7887b76d-7446-4243-a4f6-e077207d29a5/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-11-19 14:14:47,215 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7887b76d-7446-4243-a4f6-e077207d29a5/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 14:14:47,215 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting mutex_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [mutex_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, mutex_lockErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-19 14:14:47,216 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:14:47,216 INFO L85 PathProgramCache]: Analyzing trace with hash -438555830, now seen corresponding path program 1 times [2021-11-19 14:14:47,217 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:14:47,217 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1945577119] [2021-11-19 14:14:47,217 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:14:47,217 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:14:47,217 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7887b76d-7446-4243-a4f6-e077207d29a5/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:14:47,218 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7887b76d-7446-4243-a4f6-e077207d29a5/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:14:47,258 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7887b76d-7446-4243-a4f6-e077207d29a5/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-11-19 14:14:47,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:14:47,319 INFO L263 TraceCheckSpWp]: Trace formula consists of 104 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-19 14:14:47,321 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:14:47,384 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2021-11-19 14:14:47,385 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:14:47,468 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2021-11-19 14:14:47,472 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 14:14:47,472 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1945577119] [2021-11-19 14:14:47,473 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1945577119] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 14:14:47,473 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 14:14:47,473 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 4 [2021-11-19 14:14:47,473 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [965800406] [2021-11-19 14:14:47,474 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 14:14:47,474 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-19 14:14:47,474 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 14:14:47,475 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-19 14:14:47,475 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-19 14:14:47,477 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) [2021-11-19 14:14:47,502 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:14:47,502 INFO L93 Difference]: Finished difference Result 127 states and 166 transitions. [2021-11-19 14:14:47,502 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-19 14:14:47,503 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 [2021-11-19 14:14:47,503 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:14:47,509 INFO L225 Difference]: With dead ends: 127 [2021-11-19 14:14:47,510 INFO L226 Difference]: Without dead ends: 125 [2021-11-19 14:14:47,510 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 [2021-11-19 14:14:47,513 INFO L933 BasicCegarLoop]: 73 mSDtfsCounter, 0 mSDsluCounter, 142 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 215 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-19 14:14:47,515 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 215 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-19 14:14:47,518 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 125 states. [2021-11-19 14:14:47,545 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 125 to 123. [2021-11-19 14:14:47,547 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) [2021-11-19 14:14:47,550 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 123 states to 123 states and 160 transitions. [2021-11-19 14:14:47,550 INFO L78 Accepts]: Start accepts. Automaton has 123 states and 160 transitions. Word has length 27 [2021-11-19 14:14:47,551 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:14:47,551 INFO L470 AbstractCegarLoop]: Abstraction has 123 states and 160 transitions. [2021-11-19 14:14:47,552 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) [2021-11-19 14:14:47,552 INFO L276 IsEmpty]: Start isEmpty. Operand 123 states and 160 transitions. [2021-11-19 14:14:47,557 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2021-11-19 14:14:47,557 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:14:47,558 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] [2021-11-19 14:14:47,576 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7887b76d-7446-4243-a4f6-e077207d29a5/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-11-19 14:14:47,771 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7887b76d-7446-4243-a4f6-e077207d29a5/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 14:14:47,772 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting mutex_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION === [mutex_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, mutex_lockErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-19 14:14:47,772 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:14:47,773 INFO L85 PathProgramCache]: Analyzing trace with hash -811626959, now seen corresponding path program 1 times [2021-11-19 14:14:47,773 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:14:47,773 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [719436163] [2021-11-19 14:14:47,774 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:14:47,774 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:14:47,774 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7887b76d-7446-4243-a4f6-e077207d29a5/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:14:47,791 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7887b76d-7446-4243-a4f6-e077207d29a5/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:14:47,793 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7887b76d-7446-4243-a4f6-e077207d29a5/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-11-19 14:14:47,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:14:47,943 INFO L263 TraceCheckSpWp]: Trace formula consists of 238 conjuncts, 25 conjunts are in the unsatisfiable core [2021-11-19 14:14:47,948 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:14:48,227 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 [2021-11-19 14:14:48,233 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 [2021-11-19 14:14:48,691 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 39 proven. 0 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2021-11-19 14:14:48,691 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:14:49,609 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 [2021-11-19 14:14:49,621 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 [2021-11-19 14:14:50,022 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 3 proven. 19 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2021-11-19 14:14:50,023 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 14:14:50,023 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [719436163] [2021-11-19 14:14:50,023 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [719436163] provided 1 perfect and 1 imperfect interpolant sequences [2021-11-19 14:14:50,023 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-19 14:14:50,023 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [8] total 15 [2021-11-19 14:14:50,023 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1004254902] [2021-11-19 14:14:50,024 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-19 14:14:50,024 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-11-19 14:14:50,024 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 14:14:50,025 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-11-19 14:14:50,025 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=160, Unknown=0, NotChecked=0, Total=210 [2021-11-19 14:14:50,025 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) [2021-11-19 14:14:52,114 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:14:52,114 INFO L93 Difference]: Finished difference Result 291 states and 374 transitions. [2021-11-19 14:14:52,115 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-11-19 14:14:52,115 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 [2021-11-19 14:14:52,115 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:14:52,117 INFO L225 Difference]: With dead ends: 291 [2021-11-19 14:14:52,117 INFO L226 Difference]: Without dead ends: 166 [2021-11-19 14:14:52,121 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 [2021-11-19 14:14:52,122 INFO L933 BasicCegarLoop]: 87 mSDtfsCounter, 249 mSDsluCounter, 225 mSDsCounter, 0 mSdLazyCounter, 392 mSolverCounterSat, 79 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 258 SdHoareTripleChecker+Valid, 312 SdHoareTripleChecker+Invalid, 471 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 79 IncrementalHoareTripleChecker+Valid, 392 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2021-11-19 14:14:52,123 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [258 Valid, 312 Invalid, 471 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [79 Valid, 392 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2021-11-19 14:14:52,123 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 166 states. [2021-11-19 14:14:52,138 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 166 to 122. [2021-11-19 14:14:52,139 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) [2021-11-19 14:14:52,140 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 122 states to 122 states and 153 transitions. [2021-11-19 14:14:52,141 INFO L78 Accepts]: Start accepts. Automaton has 122 states and 153 transitions. Word has length 67 [2021-11-19 14:14:52,141 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:14:52,141 INFO L470 AbstractCegarLoop]: Abstraction has 122 states and 153 transitions. [2021-11-19 14:14:52,142 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) [2021-11-19 14:14:52,142 INFO L276 IsEmpty]: Start isEmpty. Operand 122 states and 153 transitions. [2021-11-19 14:14:52,143 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2021-11-19 14:14:52,143 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:14:52,144 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] [2021-11-19 14:14:52,165 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7887b76d-7446-4243-a4f6-e077207d29a5/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2021-11-19 14:14:52,357 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7887b76d-7446-4243-a4f6-e077207d29a5/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 14:14:52,358 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting mutex_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION === [mutex_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, mutex_lockErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-19 14:14:52,358 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:14:52,358 INFO L85 PathProgramCache]: Analyzing trace with hash 1108503363, now seen corresponding path program 1 times [2021-11-19 14:14:52,358 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:14:52,359 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1693188862] [2021-11-19 14:14:52,359 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:14:52,359 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:14:52,359 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7887b76d-7446-4243-a4f6-e077207d29a5/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:14:52,360 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7887b76d-7446-4243-a4f6-e077207d29a5/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:14:52,373 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7887b76d-7446-4243-a4f6-e077207d29a5/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-11-19 14:14:52,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:14:52,500 INFO L263 TraceCheckSpWp]: Trace formula consists of 232 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-19 14:14:52,503 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:14:52,632 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 38 proven. 0 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2021-11-19 14:14:52,632 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:14:52,854 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 2 proven. 10 refuted. 0 times theorem prover too weak. 52 trivial. 0 not checked. [2021-11-19 14:14:52,854 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 14:14:52,855 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1693188862] [2021-11-19 14:14:52,855 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1693188862] provided 1 perfect and 1 imperfect interpolant sequences [2021-11-19 14:14:52,855 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-19 14:14:52,855 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 4 [2021-11-19 14:14:52,855 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2028639681] [2021-11-19 14:14:52,855 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-19 14:14:52,856 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-19 14:14:52,856 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 14:14:52,856 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-19 14:14:52,857 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-19 14:14:52,857 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) [2021-11-19 14:14:52,875 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:14:52,876 INFO L93 Difference]: Finished difference Result 196 states and 237 transitions. [2021-11-19 14:14:52,876 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-19 14:14:52,876 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 [2021-11-19 14:14:52,877 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:14:52,878 INFO L225 Difference]: With dead ends: 196 [2021-11-19 14:14:52,878 INFO L226 Difference]: Without dead ends: 109 [2021-11-19 14:14:52,879 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 [2021-11-19 14:14:52,880 INFO L933 BasicCegarLoop]: 72 mSDtfsCounter, 0 mSDsluCounter, 140 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 212 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-19 14:14:52,880 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 212 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-19 14:14:52,881 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 109 states. [2021-11-19 14:14:52,893 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 109 to 103. [2021-11-19 14:14:52,894 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) [2021-11-19 14:14:52,895 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 103 states to 103 states and 121 transitions. [2021-11-19 14:14:52,895 INFO L78 Accepts]: Start accepts. Automaton has 103 states and 121 transitions. Word has length 67 [2021-11-19 14:14:52,895 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:14:52,896 INFO L470 AbstractCegarLoop]: Abstraction has 103 states and 121 transitions. [2021-11-19 14:14:52,896 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) [2021-11-19 14:14:52,896 INFO L276 IsEmpty]: Start isEmpty. Operand 103 states and 121 transitions. [2021-11-19 14:14:52,897 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2021-11-19 14:14:52,897 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:14:52,897 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] [2021-11-19 14:14:52,915 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7887b76d-7446-4243-a4f6-e077207d29a5/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2021-11-19 14:14:53,115 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7887b76d-7446-4243-a4f6-e077207d29a5/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 14:14:53,116 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting mutex_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [mutex_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, mutex_lockErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-19 14:14:53,116 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:14:53,116 INFO L85 PathProgramCache]: Analyzing trace with hash -1210243856, now seen corresponding path program 1 times [2021-11-19 14:14:53,117 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:14:53,120 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1256603035] [2021-11-19 14:14:53,121 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:14:53,121 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:14:53,121 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7887b76d-7446-4243-a4f6-e077207d29a5/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:14:53,122 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7887b76d-7446-4243-a4f6-e077207d29a5/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:14:53,160 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7887b76d-7446-4243-a4f6-e077207d29a5/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2021-11-19 14:14:53,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:14:53,332 INFO L263 TraceCheckSpWp]: Trace formula consists of 235 conjuncts, 77 conjunts are in the unsatisfiable core [2021-11-19 14:14:53,337 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:14:53,398 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 [2021-11-19 14:14:53,744 INFO L354 Elim1Store]: treesize reduction 15, result has 46.4 percent of original size [2021-11-19 14:14:53,744 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 30 treesize of output 37 [2021-11-19 14:14:53,952 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 [2021-11-19 14:14:55,522 INFO L354 Elim1Store]: treesize reduction 166, result has 26.9 percent of original size [2021-11-19 14:14:55,522 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 [2021-11-19 14:15:01,599 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-19 14:15:01,614 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 14:15:01,616 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 14:15:01,836 INFO L354 Elim1Store]: treesize reduction 590, result has 8.8 percent of original size [2021-11-19 14:15:01,837 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 624 treesize of output 317 [2021-11-19 14:15:01,895 INFO L354 Elim1Store]: treesize reduction 28, result has 50.9 percent of original size [2021-11-19 14:15:01,896 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 473 treesize of output 479 [2021-11-19 14:15:02,164 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 14:15:02,166 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 14:15:02,181 INFO L354 Elim1Store]: treesize reduction 126, result has 0.8 percent of original size [2021-11-19 14:15:02,182 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 [2021-11-19 14:15:02,446 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 14:15:02,448 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 14:15:02,453 INFO L354 Elim1Store]: treesize reduction 42, result has 2.3 percent of original size [2021-11-19 14:15:02,454 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 [2021-11-19 14:15:20,039 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 14 proven. 12 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2021-11-19 14:15:20,039 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:16:12,039 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$.base| |c_mutex_lock_ldv_list_add_#t~mem6#1.base| (store (select |c_#memory_$Pointer$.base| |c_mutex_lock_ldv_list_add_#t~mem6#1.base|) .cse8 |c_mutex_lock_ldv_list_add_~new#1.base|)))) (store .cse6 |c_mutex_lock_ldv_list_add_~new#1.base| (store (store (select .cse6 |c_mutex_lock_ldv_list_add_~new#1.base|) |c_mutex_lock_ldv_list_add_~new#1.offset| |c_mutex_lock_ldv_list_add_#t~mem6#1.base|) .cse7 |c_mutex_lock_ldv_list_add_~head#1.base|))))) (store .cse5 |c_mutex_lock_ldv_list_add_~head#1.base| (store (select .cse5 |c_mutex_lock_ldv_list_add_~head#1.base|) |c_mutex_lock_ldv_list_add_~head#1.offset| |c_mutex_lock_ldv_list_add_~new#1.base|))))) (select .cse4 (select (select .cse4 |c_~#mutexes~0.base|) |c_~#mutexes~0.offset|))) (bvadd (_ bv4294967292 32) (select (select (let ((.cse9 (let ((.cse10 (store |v_#memory_$Pointer$.offset_69| |c_mutex_lock_ldv_list_add_#t~mem6#1.base| (store (select |v_#memory_$Pointer$.offset_69| |c_mutex_lock_ldv_list_add_#t~mem6#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 [2021-11-19 14:16:14,052 WARN L860 $PredicateComparison]: unable to prove that (forall ((|v_#memory_$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$.base| |c_mutex_lock_ldv_list_add_#t~mem6#1.base| (store (select |c_#memory_$Pointer$.base| |c_mutex_lock_ldv_list_add_#t~mem6#1.base|) .cse8 |c_mutex_lock_ldv_list_add_~new#1.base|)))) (store .cse6 |c_mutex_lock_ldv_list_add_~new#1.base| (store (store (select .cse6 |c_mutex_lock_ldv_list_add_~new#1.base|) |c_mutex_lock_ldv_list_add_~new#1.offset| |c_mutex_lock_ldv_list_add_#t~mem6#1.base|) .cse7 |c_mutex_lock_ldv_list_add_~head#1.base|))))) (store .cse5 |c_mutex_lock_ldv_list_add_~head#1.base| (store (select .cse5 |c_mutex_lock_ldv_list_add_~head#1.base|) |c_mutex_lock_ldv_list_add_~head#1.offset| |c_mutex_lock_ldv_list_add_~new#1.base|))))) (select .cse4 (select (select .cse4 |c_~#mutexes~0.base|) |c_~#mutexes~0.offset|))) (bvadd (_ bv4294967292 32) (select (select (let ((.cse9 (let ((.cse10 (store |v_#memory_$Pointer$.offset_69| |c_mutex_lock_ldv_list_add_#t~mem6#1.base| (store (select |v_#memory_$Pointer$.offset_69| |c_mutex_lock_ldv_list_add_#t~mem6#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 true [2021-11-19 14:16:15,658 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 [2021-11-19 14:16:15,828 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 14:16:15,829 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 [2021-11-19 14:16:21,367 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 [2021-11-19 14:16:21,425 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 14:16:21,426 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1256603035] [2021-11-19 14:16:21,426 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: BigInteger out of long range [2021-11-19 14:16:21,427 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1050387535] [2021-11-19 14:16:21,427 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:16:21,427 INFO L168 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-11-19 14:16:21,427 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7887b76d-7446-4243-a4f6-e077207d29a5/bin/utaipan-UbGMyvGFUs/cvc4 [2021-11-19 14:16:21,434 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7887b76d-7446-4243-a4f6-e077207d29a5/bin/utaipan-UbGMyvGFUs/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-11-19 14:16:21,438 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7887b76d-7446-4243-a4f6-e077207d29a5/bin/utaipan-UbGMyvGFUs/cvc4 --incremental --print-success --lang smt (8)] Waiting until timeout for monitored process [2021-11-19 14:16:21,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:16:21,703 INFO L263 TraceCheckSpWp]: Trace formula consists of 235 conjuncts, 75 conjunts are in the unsatisfiable core [2021-11-19 14:16:21,706 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:16:22,976 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 [2021-11-19 14:16:30,380 INFO L354 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2021-11-19 14:16:30,381 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 22 treesize of output 22 [2021-11-19 14:16:32,235 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 [2021-11-19 14:16:47,530 INFO L354 Elim1Store]: treesize reduction 166, result has 26.9 percent of original size [2021-11-19 14:16:47,530 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 [2021-11-19 14:17:10,927 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-19 14:17:10,938 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 14:17:10,941 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 14:17:11,295 INFO L354 Elim1Store]: treesize reduction 578, result has 10.7 percent of original size [2021-11-19 14:17:11,296 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 [2021-11-19 14:17:11,422 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 14:17:11,425 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 14:17:11,429 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 14:17:11,544 INFO L354 Elim1Store]: treesize reduction 98, result has 22.8 percent of original size [2021-11-19 14:17:11,545 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 [2021-11-19 14:17:11,860 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 14:17:11,863 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 14:17:11,866 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 14:17:11,867 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 [2021-11-19 14:17:35,457 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 2 proven. 24 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2021-11-19 14:17:35,457 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:18:15,258 WARN L838 $PredicateComparison]: unable to prove that (forall ((|v_#memory_$Pointer$.offset_91| (Array (_ BitVec 32) (Array (_ BitVec 32) (_ BitVec 32)))) (v___ldv_list_add_~next.offset_19 (_ BitVec 32))) (exists ((v___ldv_list_add_~next.offset_16 (_ BitVec 32)) (|v_mutex_lock_ldv_list_add_~new#1.base_13| (_ BitVec 32))) (and (bvult |v_mutex_lock_ldv_list_add_~new#1.base_13| |c_#StackHeapBarrier|) (= (select (select (let ((.cse0 (let ((.cse3 (store |c_old(#memory_$Pointer$.base)| |v_mutex_lock_ldv_list_add_~new#1.base_13| (store (select |c_old(#memory_$Pointer$.base)| |v_mutex_lock_ldv_list_add_~new#1.base_13|) (_ bv0 32) |c_mutex_lock_#in~m#1.base|)))) (let ((.cse2 (select (select .cse3 |c_~#mutexes~0.base|) |c_~#mutexes~0.offset|))) (let ((.cse1 (store .cse3 .cse2 (store (select .cse3 .cse2) (bvadd (_ bv4 32) v___ldv_list_add_~next.offset_16) |v_mutex_lock_ldv_list_add_~new#1.base_13|)))) (store .cse1 |v_mutex_lock_ldv_list_add_~new#1.base_13| (store (store (select .cse1 |v_mutex_lock_ldv_list_add_~new#1.base_13|) (_ bv4 32) .cse2) (_ bv8 32) |c_~#mutexes~0.base|))))))) (store .cse0 |c_~#mutexes~0.base| (store (select .cse0 |c_~#mutexes~0.base|) |c_~#mutexes~0.offset| |v_mutex_lock_ldv_list_add_~new#1.base_13|))) |v_mutex_lock_ldv_list_add_~new#1.base_13|) (_ bv0 32)) (let ((.cse7 (bvadd (_ bv4 32) |c_mutex_lock_ldv_list_add_~new#1.offset|)) (.cse8 (bvadd (_ bv4 32) v___ldv_list_add_~next.offset_19))) (select (let ((.cse4 (let ((.cse5 (let ((.cse6 (store |c_#memory_$Pointer$.base| |c_mutex_lock_ldv_list_add_#t~mem6#1.base| (store (select |c_#memory_$Pointer$.base| |c_mutex_lock_ldv_list_add_#t~mem6#1.base|) .cse8 |c_mutex_lock_ldv_list_add_~new#1.base|)))) (store .cse6 |c_mutex_lock_ldv_list_add_~new#1.base| (store (store (select .cse6 |c_mutex_lock_ldv_list_add_~new#1.base|) |c_mutex_lock_ldv_list_add_~new#1.offset| |c_mutex_lock_ldv_list_add_#t~mem6#1.base|) .cse7 |c_mutex_lock_ldv_list_add_~head#1.base|))))) (store .cse5 |c_mutex_lock_ldv_list_add_~head#1.base| (store (select .cse5 |c_mutex_lock_ldv_list_add_~head#1.base|) |c_mutex_lock_ldv_list_add_~head#1.offset| |c_mutex_lock_ldv_list_add_~new#1.base|))))) (select .cse4 (select (select .cse4 |c_~#mutexes~0.base|) |c_~#mutexes~0.offset|))) (bvadd (_ bv4294967292 32) (select (select (let ((.cse9 (let ((.cse10 (store |v_#memory_$Pointer$.offset_91| |c_mutex_lock_ldv_list_add_#t~mem6#1.base| (store (select |v_#memory_$Pointer$.offset_91| |c_mutex_lock_ldv_list_add_#t~mem6#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_19) .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 [2021-11-19 14:18:19,624 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 [2021-11-19 14:18:36,022 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 [2021-11-19 14:18:48,316 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 [2021-11-19 14:20:15,331 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 [2021-11-19 14:20:18,632 WARN L838 $PredicateComparison]: unable to prove that (forall ((|v_#memory_$Pointer$.offset_91| (Array (_ BitVec 32) (Array (_ BitVec 32) (_ BitVec 32)))) (v___ldv_list_add_~next.offset_19 (_ BitVec 32))) (exists ((v___ldv_list_add_~next.offset_16 (_ BitVec 32)) (|v_mutex_lock_ldv_list_add_~new#1.base_13| (_ BitVec 32))) (and (bvult |v_mutex_lock_ldv_list_add_~new#1.base_13| |c_#StackHeapBarrier|) (= (let ((.cse6 (store |c_#memory_$Pointer$.base| |c_mutex_lock_ldv_set_add_#t~ret18#1.base| (store (select |c_#memory_$Pointer$.base| |c_mutex_lock_ldv_set_add_#t~ret18#1.base|) |c_mutex_lock_ldv_set_add_#t~ret18#1.offset| |c_mutex_lock_ldv_set_add_~new#1.base|)))) (let ((.cse5 (bvadd (_ bv8 32) |c_mutex_lock_ldv_set_add_#t~ret18#1.offset|)) (.cse4 (select (select .cse6 |c_mutex_lock_ldv_set_add_~s#1.base|) |c_mutex_lock_ldv_set_add_~s#1.offset|)) (.cse7 (bvadd (_ bv4 32) v___ldv_list_add_~next.offset_19)) (.cse3 (bvadd (_ bv4 32) |c_mutex_lock_ldv_set_add_#t~ret18#1.offset|))) (select (let ((.cse0 (let ((.cse1 (let ((.cse2 (store .cse6 .cse4 (store (select .cse6 .cse4) .cse7 |c_mutex_lock_ldv_set_add_#t~ret18#1.base|)))) (store .cse2 |c_mutex_lock_ldv_set_add_#t~ret18#1.base| (store (store (select .cse2 |c_mutex_lock_ldv_set_add_#t~ret18#1.base|) .cse3 .cse4) .cse5 |c_mutex_lock_ldv_set_add_~s#1.base|))))) (store .cse1 |c_mutex_lock_ldv_set_add_~s#1.base| (store (select .cse1 |c_mutex_lock_ldv_set_add_~s#1.base|) |c_mutex_lock_ldv_set_add_~s#1.offset| |c_mutex_lock_ldv_set_add_#t~ret18#1.base|))))) (select .cse0 (select (select .cse0 |c_~#mutexes~0.base|) |c_~#mutexes~0.offset|))) (bvadd (_ bv4294967292 32) (select (select (let ((.cse8 (let ((.cse9 (store |v_#memory_$Pointer$.offset_91| .cse4 (store (select |v_#memory_$Pointer$.offset_91| .cse4) .cse7 .cse3)))) (store .cse9 |c_mutex_lock_ldv_set_add_#t~ret18#1.base| (store (store (select .cse9 |c_mutex_lock_ldv_set_add_#t~ret18#1.base|) .cse3 v___ldv_list_add_~next.offset_19) .cse5 |c_mutex_lock_ldv_set_add_~s#1.offset|))))) (store .cse8 |c_mutex_lock_ldv_set_add_~s#1.base| (store (select .cse8 |c_mutex_lock_ldv_set_add_~s#1.base|) |c_mutex_lock_ldv_set_add_~s#1.offset| .cse3))) |c_~#mutexes~0.base|) |c_~#mutexes~0.offset|))))) (select (select (let ((.cse10 (let ((.cse13 (store |c_old(#memory_$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)))))) is different from false [2021-11-19 14:20:19,844 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 [2021-11-19 14:22:30,013 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 [2021-11-19 14:22:30,122 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