./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-sets/test_mutex.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 8393723b Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a89ab89e-04b0-402b-878d-427a879837fc/bin/uautomizer-TMbwUNV5ro/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a89ab89e-04b0-402b-878d-427a879837fc/bin/uautomizer-TMbwUNV5ro/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a89ab89e-04b0-402b-878d-427a879837fc/bin/uautomizer-TMbwUNV5ro/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a89ab89e-04b0-402b-878d-427a879837fc/bin/uautomizer-TMbwUNV5ro/config/AutomizerReach.xml -i ../../sv-benchmarks/c/ldv-sets/test_mutex.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a89ab89e-04b0-402b-878d-427a879837fc/bin/uautomizer-TMbwUNV5ro/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a89ab89e-04b0-402b-878d-427a879837fc/bin/uautomizer-TMbwUNV5ro --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 Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash cee8df08ffad3eb9e493a0be0076215dd3a59bce6d2370397b3bb712a7fad867 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-8393723 [2022-11-18 18:41:22,172 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-18 18:41:22,174 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-18 18:41:22,209 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-18 18:41:22,215 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-18 18:41:22,221 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-18 18:41:22,223 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-18 18:41:22,227 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-18 18:41:22,230 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-18 18:41:22,234 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-18 18:41:22,236 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-18 18:41:22,238 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-18 18:41:22,240 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-18 18:41:22,248 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-18 18:41:22,250 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-18 18:41:22,252 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-18 18:41:22,255 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-18 18:41:22,256 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-18 18:41:22,259 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-18 18:41:22,262 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-18 18:41:22,271 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-18 18:41:22,273 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-18 18:41:22,274 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-18 18:41:22,276 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-18 18:41:22,281 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-18 18:41:22,285 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-18 18:41:22,286 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-18 18:41:22,287 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-18 18:41:22,289 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-18 18:41:22,290 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-18 18:41:22,291 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-18 18:41:22,292 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-18 18:41:22,294 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-18 18:41:22,296 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-18 18:41:22,299 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-18 18:41:22,299 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-18 18:41:22,300 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-18 18:41:22,300 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-18 18:41:22,301 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-18 18:41:22,302 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-18 18:41:22,302 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-18 18:41:22,303 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a89ab89e-04b0-402b-878d-427a879837fc/bin/uautomizer-TMbwUNV5ro/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-11-18 18:41:22,359 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-18 18:41:22,359 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-18 18:41:22,360 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-18 18:41:22,360 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-18 18:41:22,361 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-18 18:41:22,362 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-18 18:41:22,363 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-18 18:41:22,363 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-18 18:41:22,364 INFO L138 SettingsManager]: * Use SBE=true [2022-11-18 18:41:22,364 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-18 18:41:22,365 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-18 18:41:22,366 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-18 18:41:22,366 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-18 18:41:22,366 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-18 18:41:22,367 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-18 18:41:22,367 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-18 18:41:22,367 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-18 18:41:22,367 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-18 18:41:22,368 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-18 18:41:22,368 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-18 18:41:22,368 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-18 18:41:22,369 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-18 18:41:22,369 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-18 18:41:22,369 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-18 18:41:22,369 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-18 18:41:22,370 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-18 18:41:22,372 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-18 18:41:22,372 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-18 18:41:22,372 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-18 18:41:22,373 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-18 18:41:22,373 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-18 18:41:22,373 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-18 18:41:22,374 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-18 18:41:22,374 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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_a89ab89e-04b0-402b-878d-427a879837fc/bin/uautomizer-TMbwUNV5ro/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a89ab89e-04b0-402b-878d-427a879837fc/bin/uautomizer-TMbwUNV5ro Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> cee8df08ffad3eb9e493a0be0076215dd3a59bce6d2370397b3bb712a7fad867 [2022-11-18 18:41:22,779 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-18 18:41:22,828 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-18 18:41:22,831 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-18 18:41:22,832 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-18 18:41:22,833 INFO L275 PluginConnector]: CDTParser initialized [2022-11-18 18:41:22,835 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a89ab89e-04b0-402b-878d-427a879837fc/bin/uautomizer-TMbwUNV5ro/../../sv-benchmarks/c/ldv-sets/test_mutex.i [2022-11-18 18:41:22,938 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a89ab89e-04b0-402b-878d-427a879837fc/bin/uautomizer-TMbwUNV5ro/data/84a0a5cc9/7acd60535f6b4abd91db4ba3b095e436/FLAG90f8b1305 [2022-11-18 18:41:23,709 INFO L306 CDTParser]: Found 1 translation units. [2022-11-18 18:41:23,710 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a89ab89e-04b0-402b-878d-427a879837fc/sv-benchmarks/c/ldv-sets/test_mutex.i [2022-11-18 18:41:23,729 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a89ab89e-04b0-402b-878d-427a879837fc/bin/uautomizer-TMbwUNV5ro/data/84a0a5cc9/7acd60535f6b4abd91db4ba3b095e436/FLAG90f8b1305 [2022-11-18 18:41:23,744 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a89ab89e-04b0-402b-878d-427a879837fc/bin/uautomizer-TMbwUNV5ro/data/84a0a5cc9/7acd60535f6b4abd91db4ba3b095e436 [2022-11-18 18:41:23,747 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-18 18:41:23,749 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-18 18:41:23,751 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-18 18:41:23,751 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-18 18:41:23,755 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-18 18:41:23,756 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 06:41:23" (1/1) ... [2022-11-18 18:41:23,758 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5238e5ce and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:41:23, skipping insertion in model container [2022-11-18 18:41:23,758 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 06:41:23" (1/1) ... [2022-11-18 18:41:23,767 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-18 18:41:23,808 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-18 18:41:24,380 WARN L234 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_a89ab89e-04b0-402b-878d-427a879837fc/sv-benchmarks/c/ldv-sets/test_mutex.i[25842,25855] [2022-11-18 18:41:24,390 WARN L234 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_a89ab89e-04b0-402b-878d-427a879837fc/sv-benchmarks/c/ldv-sets/test_mutex.i[25967,25980] [2022-11-18 18:41:24,392 WARN L234 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_a89ab89e-04b0-402b-878d-427a879837fc/sv-benchmarks/c/ldv-sets/test_mutex.i[26082,26095] [2022-11-18 18:41:24,399 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-18 18:41:24,412 INFO L203 MainTranslator]: Completed pre-run [2022-11-18 18:41:24,480 WARN L234 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_a89ab89e-04b0-402b-878d-427a879837fc/sv-benchmarks/c/ldv-sets/test_mutex.i[25842,25855] [2022-11-18 18:41:24,482 WARN L234 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_a89ab89e-04b0-402b-878d-427a879837fc/sv-benchmarks/c/ldv-sets/test_mutex.i[25967,25980] [2022-11-18 18:41:24,483 WARN L234 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_a89ab89e-04b0-402b-878d-427a879837fc/sv-benchmarks/c/ldv-sets/test_mutex.i[26082,26095] [2022-11-18 18:41:24,485 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-18 18:41:24,537 INFO L208 MainTranslator]: Completed translation [2022-11-18 18:41:24,538 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:41:24 WrapperNode [2022-11-18 18:41:24,538 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-18 18:41:24,540 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-18 18:41:24,540 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-18 18:41:24,541 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-18 18:41:24,550 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:41:24" (1/1) ... [2022-11-18 18:41:24,568 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:41:24" (1/1) ... [2022-11-18 18:41:24,599 INFO L138 Inliner]: procedures = 139, calls = 57, calls flagged for inlining = 14, calls inlined = 13, statements flattened = 129 [2022-11-18 18:41:24,600 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-18 18:41:24,601 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-18 18:41:24,601 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-18 18:41:24,601 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-18 18:41:24,614 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:41:24" (1/1) ... [2022-11-18 18:41:24,614 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:41:24" (1/1) ... [2022-11-18 18:41:24,634 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:41:24" (1/1) ... [2022-11-18 18:41:24,634 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:41:24" (1/1) ... [2022-11-18 18:41:24,648 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:41:24" (1/1) ... [2022-11-18 18:41:24,653 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:41:24" (1/1) ... [2022-11-18 18:41:24,656 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:41:24" (1/1) ... [2022-11-18 18:41:24,657 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:41:24" (1/1) ... [2022-11-18 18:41:24,661 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-18 18:41:24,663 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-18 18:41:24,663 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-18 18:41:24,663 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-18 18:41:24,664 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:41:24" (1/1) ... [2022-11-18 18:41:24,674 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-18 18:41:24,689 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a89ab89e-04b0-402b-878d-427a879837fc/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 18:41:24,711 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a89ab89e-04b0-402b-878d-427a879837fc/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-18 18:41:24,752 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a89ab89e-04b0-402b-878d-427a879837fc/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-18 18:41:24,780 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_list_add [2022-11-18 18:41:24,782 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_list_add [2022-11-18 18:41:24,783 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2022-11-18 18:41:24,783 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2022-11-18 18:41:24,783 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-18 18:41:24,784 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock [2022-11-18 18:41:24,784 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock [2022-11-18 18:41:24,785 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-18 18:41:24,785 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-18 18:41:24,785 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_in_set [2022-11-18 18:41:24,785 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_in_set [2022-11-18 18:41:24,785 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-18 18:41:24,786 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-18 18:41:24,786 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-11-18 18:41:24,786 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-18 18:41:24,786 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_successful_malloc [2022-11-18 18:41:24,786 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_successful_malloc [2022-11-18 18:41:24,787 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-18 18:41:24,787 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-18 18:41:25,063 INFO L235 CfgBuilder]: Building ICFG [2022-11-18 18:41:25,066 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-18 18:41:25,581 INFO L276 CfgBuilder]: Performing block encoding [2022-11-18 18:41:25,602 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-18 18:41:25,603 INFO L300 CfgBuilder]: Removed 2 assume(true) statements. [2022-11-18 18:41:25,605 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 06:41:25 BoogieIcfgContainer [2022-11-18 18:41:25,605 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-18 18:41:25,609 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-18 18:41:25,609 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-18 18:41:25,617 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-18 18:41:25,618 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 06:41:23" (1/3) ... [2022-11-18 18:41:25,619 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@73ac9b6d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 06:41:25, skipping insertion in model container [2022-11-18 18:41:25,619 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:41:24" (2/3) ... [2022-11-18 18:41:25,621 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@73ac9b6d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 06:41:25, skipping insertion in model container [2022-11-18 18:41:25,621 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 06:41:25" (3/3) ... [2022-11-18 18:41:25,624 INFO L112 eAbstractionObserver]: Analyzing ICFG test_mutex.i [2022-11-18 18:41:25,650 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-18 18:41:25,651 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2022-11-18 18:41:25,748 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-18 18:41:25,759 INFO L357 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=PETRI_NET, 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, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@371aaf78, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-18 18:41:25,759 INFO L358 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2022-11-18 18:41:25,764 INFO L276 IsEmpty]: Start isEmpty. Operand has 70 states, 50 states have (on average 1.28) internal successors, (64), 53 states have internal predecessors, (64), 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) [2022-11-18 18:41:25,775 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2022-11-18 18:41:25,776 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 18:41:25,777 INFO L195 NwaCegarLoop]: 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, 1] [2022-11-18 18:41:25,778 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting mutex_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [mutex_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, mutex_lockErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 18:41:25,785 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:41:25,786 INFO L85 PathProgramCache]: Analyzing trace with hash 709034920, now seen corresponding path program 1 times [2022-11-18 18:41:25,798 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 18:41:25,798 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [160183499] [2022-11-18 18:41:25,799 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:41:25,800 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 18:41:25,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:41:26,142 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-11-18 18:41:26,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:41:26,188 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-11-18 18:41:26,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:41:26,209 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-11-18 18:41:26,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:41:26,225 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-11-18 18:41:26,226 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 18:41:26,226 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [160183499] [2022-11-18 18:41:26,227 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [160183499] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 18:41:26,227 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 18:41:26,227 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-18 18:41:26,229 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [516245922] [2022-11-18 18:41:26,230 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 18:41:26,236 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 18:41:26,236 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 18:41:26,277 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 18:41:26,278 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 18:41:26,281 INFO L87 Difference]: Start difference. First operand has 70 states, 50 states have (on average 1.28) internal successors, (64), 53 states have internal predecessors, (64), 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 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 2 states have internal predecessors, (17), 2 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (3), 1 states have call predecessors, (3), 2 states have call successors, (3) [2022-11-18 18:41:26,558 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 18:41:26,559 INFO L93 Difference]: Finished difference Result 147 states and 193 transitions. [2022-11-18 18:41:26,563 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 18:41:26,564 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 2 states have internal predecessors, (17), 2 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (3), 1 states have call predecessors, (3), 2 states have call successors, (3) Word has length 28 [2022-11-18 18:41:26,565 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 18:41:26,583 INFO L225 Difference]: With dead ends: 147 [2022-11-18 18:41:26,583 INFO L226 Difference]: Without dead ends: 76 [2022-11-18 18:41:26,589 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 18:41:26,595 INFO L413 NwaCegarLoop]: 50 mSDtfsCounter, 35 mSDsluCounter, 24 mSDsCounter, 0 mSdLazyCounter, 47 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 38 SdHoareTripleChecker+Valid, 74 SdHoareTripleChecker+Invalid, 57 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 47 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-18 18:41:26,597 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [38 Valid, 74 Invalid, 57 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 47 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-18 18:41:26,619 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 76 states. [2022-11-18 18:41:26,646 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 76 to 65. [2022-11-18 18:41:26,647 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 65 states, 46 states have (on average 1.1521739130434783) internal successors, (53), 48 states have internal predecessors, (53), 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) [2022-11-18 18:41:26,650 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65 states to 65 states and 75 transitions. [2022-11-18 18:41:26,652 INFO L78 Accepts]: Start accepts. Automaton has 65 states and 75 transitions. Word has length 28 [2022-11-18 18:41:26,652 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 18:41:26,652 INFO L495 AbstractCegarLoop]: Abstraction has 65 states and 75 transitions. [2022-11-18 18:41:26,653 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 2 states have internal predecessors, (17), 2 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (3), 1 states have call predecessors, (3), 2 states have call successors, (3) [2022-11-18 18:41:26,653 INFO L276 IsEmpty]: Start isEmpty. Operand 65 states and 75 transitions. [2022-11-18 18:41:26,654 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2022-11-18 18:41:26,674 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 18:41:26,674 INFO L195 NwaCegarLoop]: 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, 1] [2022-11-18 18:41:26,690 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-18 18:41:26,690 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting mutex_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [mutex_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, mutex_lockErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 18:41:26,691 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:41:26,691 INFO L85 PathProgramCache]: Analyzing trace with hash -2117471768, now seen corresponding path program 1 times [2022-11-18 18:41:26,692 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 18:41:26,692 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2126837352] [2022-11-18 18:41:26,692 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:41:26,693 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 18:41:26,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:41:26,904 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-11-18 18:41:26,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:41:26,917 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-11-18 18:41:26,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:41:26,929 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-11-18 18:41:26,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:41:26,975 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-11-18 18:41:26,976 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 18:41:26,976 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2126837352] [2022-11-18 18:41:26,976 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2126837352] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 18:41:26,976 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 18:41:26,977 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-18 18:41:26,977 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [520360403] [2022-11-18 18:41:26,977 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 18:41:26,980 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-18 18:41:26,981 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 18:41:26,982 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-18 18:41:26,982 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-18 18:41:26,982 INFO L87 Difference]: Start difference. First operand 65 states and 75 transitions. Second operand has 5 states, 5 states have (on average 3.4) internal successors, (17), 4 states have internal predecessors, (17), 1 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2022-11-18 18:41:27,260 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 18:41:27,260 INFO L93 Difference]: Finished difference Result 82 states and 98 transitions. [2022-11-18 18:41:27,261 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-18 18:41:27,262 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 3.4) internal successors, (17), 4 states have internal predecessors, (17), 1 states have call successors, (4), 2 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 28 [2022-11-18 18:41:27,262 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 18:41:27,264 INFO L225 Difference]: With dead ends: 82 [2022-11-18 18:41:27,264 INFO L226 Difference]: Without dead ends: 80 [2022-11-18 18:41:27,264 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2022-11-18 18:41:27,266 INFO L413 NwaCegarLoop]: 43 mSDtfsCounter, 38 mSDsluCounter, 98 mSDsCounter, 0 mSdLazyCounter, 119 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 44 SdHoareTripleChecker+Valid, 141 SdHoareTripleChecker+Invalid, 128 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 119 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-18 18:41:27,266 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [44 Valid, 141 Invalid, 128 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 119 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-18 18:41:27,268 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 80 states. [2022-11-18 18:41:27,279 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 80 to 69. [2022-11-18 18:41:27,279 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 69 states, 49 states have (on average 1.1428571428571428) internal successors, (56), 51 states have internal predecessors, (56), 11 states have call successors, (11), 5 states have call predecessors, (11), 6 states have return successors, (14), 12 states have call predecessors, (14), 11 states have call successors, (14) [2022-11-18 18:41:27,281 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69 states to 69 states and 81 transitions. [2022-11-18 18:41:27,282 INFO L78 Accepts]: Start accepts. Automaton has 69 states and 81 transitions. Word has length 28 [2022-11-18 18:41:27,282 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 18:41:27,282 INFO L495 AbstractCegarLoop]: Abstraction has 69 states and 81 transitions. [2022-11-18 18:41:27,283 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 3.4) internal successors, (17), 4 states have internal predecessors, (17), 1 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2022-11-18 18:41:27,283 INFO L276 IsEmpty]: Start isEmpty. Operand 69 states and 81 transitions. [2022-11-18 18:41:27,284 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2022-11-18 18:41:27,284 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 18:41:27,285 INFO L195 NwaCegarLoop]: 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, 1] [2022-11-18 18:41:27,285 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-18 18:41:27,285 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting mutex_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [mutex_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, mutex_lockErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 18:41:27,286 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:41:27,286 INFO L85 PathProgramCache]: Analyzing trace with hash -542868463, now seen corresponding path program 1 times [2022-11-18 18:41:27,286 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 18:41:27,287 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1351014486] [2022-11-18 18:41:27,287 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:41:27,287 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 18:41:27,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:41:27,605 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-11-18 18:41:27,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:41:27,622 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-11-18 18:41:27,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:41:27,637 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-11-18 18:41:27,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:41:27,795 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-11-18 18:41:27,796 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 18:41:27,798 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1351014486] [2022-11-18 18:41:27,798 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1351014486] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 18:41:27,799 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 18:41:27,799 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-18 18:41:27,800 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2037532719] [2022-11-18 18:41:27,800 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 18:41:27,801 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-18 18:41:27,802 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 18:41:27,802 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-18 18:41:27,807 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-18 18:41:27,808 INFO L87 Difference]: Start difference. First operand 69 states and 81 transitions. Second operand has 6 states, 6 states have (on average 2.8333333333333335) internal successors, (17), 5 states have internal predecessors, (17), 1 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2022-11-18 18:41:28,662 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 18:41:28,663 INFO L93 Difference]: Finished difference Result 206 states and 259 transitions. [2022-11-18 18:41:28,663 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-11-18 18:41:28,664 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 2.8333333333333335) internal successors, (17), 5 states have internal predecessors, (17), 1 states have call successors, (4), 3 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 28 [2022-11-18 18:41:28,664 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 18:41:28,667 INFO L225 Difference]: With dead ends: 206 [2022-11-18 18:41:28,671 INFO L226 Difference]: Without dead ends: 145 [2022-11-18 18:41:28,673 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=54, Invalid=102, Unknown=0, NotChecked=0, Total=156 [2022-11-18 18:41:28,676 INFO L413 NwaCegarLoop]: 52 mSDtfsCounter, 142 mSDsluCounter, 116 mSDsCounter, 0 mSdLazyCounter, 275 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 148 SdHoareTripleChecker+Valid, 168 SdHoareTripleChecker+Invalid, 306 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 275 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-11-18 18:41:28,679 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [148 Valid, 168 Invalid, 306 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 275 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-11-18 18:41:28,681 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 145 states. [2022-11-18 18:41:28,713 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 145 to 120. [2022-11-18 18:41:28,714 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 120 states, 86 states have (on average 1.186046511627907) internal successors, (102), 92 states have internal predecessors, (102), 18 states have call successors, (18), 9 states have call predecessors, (18), 13 states have return successors, (29), 18 states have call predecessors, (29), 18 states have call successors, (29) [2022-11-18 18:41:28,716 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 120 states to 120 states and 149 transitions. [2022-11-18 18:41:28,716 INFO L78 Accepts]: Start accepts. Automaton has 120 states and 149 transitions. Word has length 28 [2022-11-18 18:41:28,717 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 18:41:28,717 INFO L495 AbstractCegarLoop]: Abstraction has 120 states and 149 transitions. [2022-11-18 18:41:28,717 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 2.8333333333333335) internal successors, (17), 5 states have internal predecessors, (17), 1 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2022-11-18 18:41:28,718 INFO L276 IsEmpty]: Start isEmpty. Operand 120 states and 149 transitions. [2022-11-18 18:41:28,720 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2022-11-18 18:41:28,720 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 18:41:28,721 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 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, 1] [2022-11-18 18:41:28,721 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-18 18:41:28,722 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting mutex_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION === [mutex_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, mutex_lockErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 18:41:28,722 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:41:28,722 INFO L85 PathProgramCache]: Analyzing trace with hash 391053642, now seen corresponding path program 1 times [2022-11-18 18:41:28,723 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 18:41:28,723 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [128052892] [2022-11-18 18:41:28,723 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:41:28,723 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 18:41:28,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:41:28,851 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-11-18 18:41:28,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:41:28,861 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-11-18 18:41:28,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:41:28,885 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-11-18 18:41:28,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:41:28,964 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 18:41:28,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:41:28,971 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-11-18 18:41:28,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:41:29,026 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-11-18 18:41:29,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:41:29,042 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 18:41:29,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:41:29,047 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-11-18 18:41:29,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:41:29,052 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-11-18 18:41:29,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:41:29,057 INFO L134 CoverageAnalysis]: Checked inductivity of 66 backedges. 2 proven. 11 refuted. 0 times theorem prover too weak. 53 trivial. 0 not checked. [2022-11-18 18:41:29,057 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 18:41:29,057 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [128052892] [2022-11-18 18:41:29,058 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [128052892] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 18:41:29,058 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [347439017] [2022-11-18 18:41:29,058 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:41:29,058 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 18:41:29,059 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a89ab89e-04b0-402b-878d-427a879837fc/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 18:41:29,062 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a89ab89e-04b0-402b-878d-427a879837fc/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 18:41:29,108 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a89ab89e-04b0-402b-878d-427a879837fc/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-18 18:41:29,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:41:29,286 INFO L263 TraceCheckSpWp]: Trace formula consists of 399 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-18 18:41:29,306 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 18:41:29,466 INFO L134 CoverageAnalysis]: Checked inductivity of 66 backedges. 40 proven. 0 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2022-11-18 18:41:29,467 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-18 18:41:29,467 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [347439017] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 18:41:29,467 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-18 18:41:29,468 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [6] total 6 [2022-11-18 18:41:29,468 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1810361453] [2022-11-18 18:41:29,468 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 18:41:29,469 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-18 18:41:29,469 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 18:41:29,470 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-18 18:41:29,470 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-11-18 18:41:29,470 INFO L87 Difference]: Start difference. First operand 120 states and 149 transitions. Second operand has 4 states, 4 states have (on average 9.25) internal successors, (37), 4 states have internal predecessors, (37), 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) [2022-11-18 18:41:29,519 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 18:41:29,520 INFO L93 Difference]: Finished difference Result 219 states and 271 transitions. [2022-11-18 18:41:29,520 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-18 18:41:29,521 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 9.25) internal successors, (37), 4 states have internal predecessors, (37), 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 72 [2022-11-18 18:41:29,521 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 18:41:29,523 INFO L225 Difference]: With dead ends: 219 [2022-11-18 18:41:29,523 INFO L226 Difference]: Without dead ends: 126 [2022-11-18 18:41:29,534 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 94 GetRequests, 88 SyntacticMatches, 2 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-11-18 18:41:29,535 INFO L413 NwaCegarLoop]: 73 mSDtfsCounter, 0 mSDsluCounter, 139 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 212 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-18 18:41:29,536 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 212 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-18 18:41:29,537 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 126 states. [2022-11-18 18:41:29,552 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 126 to 126. [2022-11-18 18:41:29,566 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 126 states, 91 states have (on average 1.1758241758241759) internal successors, (107), 96 states have internal predecessors, (107), 18 states have call successors, (18), 9 states have call predecessors, (18), 14 states have return successors, (30), 20 states have call predecessors, (30), 18 states have call successors, (30) [2022-11-18 18:41:29,568 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 126 states to 126 states and 155 transitions. [2022-11-18 18:41:29,568 INFO L78 Accepts]: Start accepts. Automaton has 126 states and 155 transitions. Word has length 72 [2022-11-18 18:41:29,569 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 18:41:29,569 INFO L495 AbstractCegarLoop]: Abstraction has 126 states and 155 transitions. [2022-11-18 18:41:29,582 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.25) internal successors, (37), 4 states have internal predecessors, (37), 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) [2022-11-18 18:41:29,582 INFO L276 IsEmpty]: Start isEmpty. Operand 126 states and 155 transitions. [2022-11-18 18:41:29,584 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2022-11-18 18:41:29,585 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 18:41:29,585 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 18:41:29,612 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a89ab89e-04b0-402b-878d-427a879837fc/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-11-18 18:41:29,786 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a89ab89e-04b0-402b-878d-427a879837fc/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 18:41:29,786 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting mutex_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [mutex_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, mutex_lockErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 18:41:29,787 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:41:29,787 INFO L85 PathProgramCache]: Analyzing trace with hash 336841398, now seen corresponding path program 1 times [2022-11-18 18:41:29,787 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 18:41:29,787 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1160925581] [2022-11-18 18:41:29,787 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:41:29,788 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 18:41:29,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:41:33,826 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-11-18 18:41:33,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:41:33,922 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-11-18 18:41:33,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:41:34,076 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-11-18 18:41:34,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:41:35,704 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 18:41:35,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:41:35,815 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-11-18 18:41:35,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:41:35,865 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-11-18 18:41:35,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:41:36,065 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-11-18 18:41:36,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:41:36,562 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2022-11-18 18:41:36,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:41:36,863 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 2 proven. 20 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2022-11-18 18:41:36,863 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 18:41:36,864 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1160925581] [2022-11-18 18:41:36,864 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1160925581] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 18:41:36,864 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [657521233] [2022-11-18 18:41:36,864 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:41:36,864 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 18:41:36,864 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a89ab89e-04b0-402b-878d-427a879837fc/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 18:41:36,866 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a89ab89e-04b0-402b-878d-427a879837fc/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 18:41:36,886 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a89ab89e-04b0-402b-878d-427a879837fc/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-18 18:41:37,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:41:37,085 INFO L263 TraceCheckSpWp]: Trace formula consists of 464 conjuncts, 198 conjunts are in the unsatisfiable core [2022-11-18 18:41:37,104 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 18:41:37,678 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-11-18 18:41:37,680 INFO L350 Elim1Store]: Elim1 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 17 treesize of output 21 [2022-11-18 18:41:38,075 INFO L321 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2022-11-18 18:41:38,076 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 22 treesize of output 33 [2022-11-18 18:41:38,429 INFO L350 Elim1Store]: Elim1 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 [2022-11-18 18:41:38,455 INFO L350 Elim1Store]: Elim1 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 [2022-11-18 18:41:40,959 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-18 18:41:40,965 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-18 18:41:40,967 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-18 18:41:41,098 INFO L321 Elim1Store]: treesize reduction 158, result has 24.0 percent of original size [2022-11-18 18:41:41,098 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 1 select indices, 1 select index equivalence classes, 7 disjoint index pairs (out of 0 index pairs), introduced 4 new quantified variables, introduced 5 case distinctions, treesize of input 190 treesize of output 155 [2022-11-18 18:41:41,170 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-18 18:41:41,179 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-18 18:41:41,183 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 28 [2022-11-18 18:41:41,198 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-18 18:41:41,204 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-18 18:41:41,206 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 94 treesize of output 80 [2022-11-18 18:41:41,236 INFO L321 Elim1Store]: treesize reduction 23, result has 28.1 percent of original size [2022-11-18 18:41:41,237 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 19 treesize of output 20 [2022-11-18 18:41:41,274 INFO L321 Elim1Store]: treesize reduction 22, result has 47.6 percent of original size [2022-11-18 18:41:41,274 INFO L350 Elim1Store]: Elim1 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 79 treesize of output 71 [2022-11-18 18:41:41,295 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-18 18:41:41,296 INFO L350 Elim1Store]: Elim1 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 94 treesize of output 74 [2022-11-18 18:41:41,312 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-18 18:41:41,328 INFO L321 Elim1Store]: treesize reduction 8, result has 74.2 percent of original size [2022-11-18 18:41:41,329 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 2 case distinctions, treesize of input 29 treesize of output 35 [2022-11-18 18:41:41,340 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 40 treesize of output 32 [2022-11-18 18:41:43,207 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 10 proven. 13 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-11-18 18:41:43,207 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 18:41:46,064 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [657521233] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 18:41:46,065 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-18 18:41:46,065 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [32, 29] total 60 [2022-11-18 18:41:46,065 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1680972586] [2022-11-18 18:41:46,065 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-18 18:41:46,066 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 60 states [2022-11-18 18:41:46,067 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 18:41:46,067 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 60 interpolants. [2022-11-18 18:41:46,070 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=242, Invalid=4170, Unknown=10, NotChecked=0, Total=4422 [2022-11-18 18:41:46,070 INFO L87 Difference]: Start difference. First operand 126 states and 155 transitions. Second operand has 60 states, 48 states have (on average 1.6458333333333333) internal successors, (79), 41 states have internal predecessors, (79), 17 states have call successors, (18), 12 states have call predecessors, (18), 13 states have return successors, (16), 15 states have call predecessors, (16), 15 states have call successors, (16) [2022-11-18 18:41:53,182 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 18:41:53,182 INFO L93 Difference]: Finished difference Result 283 states and 333 transitions. [2022-11-18 18:41:53,183 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 50 states. [2022-11-18 18:41:53,183 INFO L78 Accepts]: Start accepts. Automaton has has 60 states, 48 states have (on average 1.6458333333333333) internal successors, (79), 41 states have internal predecessors, (79), 17 states have call successors, (18), 12 states have call predecessors, (18), 13 states have return successors, (16), 15 states have call predecessors, (16), 15 states have call successors, (16) Word has length 63 [2022-11-18 18:41:53,184 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 18:41:53,186 INFO L225 Difference]: With dead ends: 283 [2022-11-18 18:41:53,186 INFO L226 Difference]: Without dead ends: 214 [2022-11-18 18:41:53,204 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 147 GetRequests, 48 SyntacticMatches, 0 SemanticMatches, 99 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2059 ImplicationChecksByTransitivity, 9.4s TimeCoverageRelationStatistics Valid=673, Invalid=9417, Unknown=10, NotChecked=0, Total=10100 [2022-11-18 18:41:53,205 INFO L413 NwaCegarLoop]: 45 mSDtfsCounter, 436 mSDsluCounter, 1010 mSDsCounter, 0 mSdLazyCounter, 2818 mSolverCounterSat, 149 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 440 SdHoareTripleChecker+Valid, 1055 SdHoareTripleChecker+Invalid, 3589 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 149 IncrementalHoareTripleChecker+Valid, 2818 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 622 IncrementalHoareTripleChecker+Unchecked, 3.2s IncrementalHoareTripleChecker+Time [2022-11-18 18:41:53,205 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [440 Valid, 1055 Invalid, 3589 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [149 Valid, 2818 Invalid, 0 Unknown, 622 Unchecked, 3.2s Time] [2022-11-18 18:41:53,206 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 214 states. [2022-11-18 18:41:53,255 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 214 to 167. [2022-11-18 18:41:53,257 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 167 states, 123 states have (on average 1.1951219512195121) internal successors, (147), 129 states have internal predecessors, (147), 21 states have call successors, (21), 13 states have call predecessors, (21), 20 states have return successors, (36), 24 states have call predecessors, (36), 21 states have call successors, (36) [2022-11-18 18:41:53,263 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 167 states to 167 states and 204 transitions. [2022-11-18 18:41:53,263 INFO L78 Accepts]: Start accepts. Automaton has 167 states and 204 transitions. Word has length 63 [2022-11-18 18:41:53,264 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 18:41:53,265 INFO L495 AbstractCegarLoop]: Abstraction has 167 states and 204 transitions. [2022-11-18 18:41:53,265 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 60 states, 48 states have (on average 1.6458333333333333) internal successors, (79), 41 states have internal predecessors, (79), 17 states have call successors, (18), 12 states have call predecessors, (18), 13 states have return successors, (16), 15 states have call predecessors, (16), 15 states have call successors, (16) [2022-11-18 18:41:53,265 INFO L276 IsEmpty]: Start isEmpty. Operand 167 states and 204 transitions. [2022-11-18 18:41:53,275 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2022-11-18 18:41:53,278 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 18:41:53,279 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 3, 3, 2, 2, 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, 1] [2022-11-18 18:41:53,296 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a89ab89e-04b0-402b-878d-427a879837fc/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-11-18 18:41:53,487 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a89ab89e-04b0-402b-878d-427a879837fc/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 18:41:53,487 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting mutex_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION === [mutex_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, mutex_lockErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 18:41:53,488 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:41:53,488 INFO L85 PathProgramCache]: Analyzing trace with hash 2102607608, now seen corresponding path program 1 times [2022-11-18 18:41:53,488 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 18:41:53,488 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1410298877] [2022-11-18 18:41:53,489 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:41:53,489 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 18:41:53,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:41:53,734 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-11-18 18:41:53,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:41:53,744 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-11-18 18:41:53,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:41:53,767 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-11-18 18:41:53,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:41:53,880 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 18:41:53,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:41:53,946 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-11-18 18:41:53,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:41:53,998 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-11-18 18:41:54,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:41:54,008 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 18:41:54,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:41:54,012 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-11-18 18:41:54,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:41:54,016 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-11-18 18:41:54,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:41:54,021 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 0 proven. 32 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2022-11-18 18:41:54,021 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 18:41:54,022 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1410298877] [2022-11-18 18:41:54,022 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1410298877] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 18:41:54,022 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [91663629] [2022-11-18 18:41:54,022 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:41:54,023 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 18:41:54,023 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a89ab89e-04b0-402b-878d-427a879837fc/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 18:41:54,024 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a89ab89e-04b0-402b-878d-427a879837fc/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 18:41:54,061 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a89ab89e-04b0-402b-878d-427a879837fc/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-18 18:41:54,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:41:54,219 INFO L263 TraceCheckSpWp]: Trace formula consists of 409 conjuncts, 41 conjunts are in the unsatisfiable core [2022-11-18 18:41:54,224 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 18:41:54,453 INFO L350 Elim1Store]: Elim1 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 [2022-11-18 18:41:54,461 INFO L350 Elim1Store]: Elim1 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 [2022-11-18 18:41:54,696 INFO L350 Elim1Store]: Elim1 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 [2022-11-18 18:41:54,701 INFO L350 Elim1Store]: Elim1 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 [2022-11-18 18:41:55,070 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 34 proven. 0 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2022-11-18 18:41:55,070 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-18 18:41:55,070 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [91663629] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 18:41:55,070 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-18 18:41:55,071 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [9] total 16 [2022-11-18 18:41:55,071 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1360807355] [2022-11-18 18:41:55,071 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 18:41:55,072 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-18 18:41:55,072 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 18:41:55,073 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-18 18:41:55,073 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=199, Unknown=0, NotChecked=0, Total=240 [2022-11-18 18:41:55,073 INFO L87 Difference]: Start difference. First operand 167 states and 204 transitions. Second operand has 9 states, 8 states have (on average 5.0) internal successors, (40), 8 states have internal predecessors, (40), 4 states have call successors, (9), 4 states have call predecessors, (9), 6 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) [2022-11-18 18:41:56,073 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 18:41:56,073 INFO L93 Difference]: Finished difference Result 332 states and 400 transitions. [2022-11-18 18:41:56,074 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-11-18 18:41:56,074 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 5.0) internal successors, (40), 8 states have internal predecessors, (40), 4 states have call successors, (9), 4 states have call predecessors, (9), 6 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) Word has length 72 [2022-11-18 18:41:56,074 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 18:41:56,076 INFO L225 Difference]: With dead ends: 332 [2022-11-18 18:41:56,076 INFO L226 Difference]: Without dead ends: 161 [2022-11-18 18:41:56,077 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 107 GetRequests, 82 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 103 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=141, Invalid=561, Unknown=0, NotChecked=0, Total=702 [2022-11-18 18:41:56,078 INFO L413 NwaCegarLoop]: 66 mSDtfsCounter, 179 mSDsluCounter, 206 mSDsCounter, 0 mSdLazyCounter, 382 mSolverCounterSat, 44 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 186 SdHoareTripleChecker+Valid, 272 SdHoareTripleChecker+Invalid, 426 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 44 IncrementalHoareTripleChecker+Valid, 382 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-11-18 18:41:56,078 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [186 Valid, 272 Invalid, 426 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [44 Valid, 382 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-11-18 18:41:56,079 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 161 states. [2022-11-18 18:41:56,099 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 161 to 127. [2022-11-18 18:41:56,099 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 127 states, 93 states have (on average 1.1290322580645162) internal successors, (105), 97 states have internal predecessors, (105), 16 states have call successors, (16), 11 states have call predecessors, (16), 15 states have return successors, (25), 18 states have call predecessors, (25), 16 states have call successors, (25) [2022-11-18 18:41:56,100 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 127 states to 127 states and 146 transitions. [2022-11-18 18:41:56,100 INFO L78 Accepts]: Start accepts. Automaton has 127 states and 146 transitions. Word has length 72 [2022-11-18 18:41:56,101 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 18:41:56,101 INFO L495 AbstractCegarLoop]: Abstraction has 127 states and 146 transitions. [2022-11-18 18:41:56,101 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 5.0) internal successors, (40), 8 states have internal predecessors, (40), 4 states have call successors, (9), 4 states have call predecessors, (9), 6 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) [2022-11-18 18:41:56,101 INFO L276 IsEmpty]: Start isEmpty. Operand 127 states and 146 transitions. [2022-11-18 18:41:56,102 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2022-11-18 18:41:56,102 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 18:41:56,102 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 18:41:56,117 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a89ab89e-04b0-402b-878d-427a879837fc/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-11-18 18:41:56,309 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a89ab89e-04b0-402b-878d-427a879837fc/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2022-11-18 18:41:56,310 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting mutex_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [mutex_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, mutex_lockErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 18:41:56,310 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:41:56,311 INFO L85 PathProgramCache]: Analyzing trace with hash 1485354123, now seen corresponding path program 1 times [2022-11-18 18:41:56,311 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 18:41:56,311 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [988727451] [2022-11-18 18:41:56,311 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:41:56,311 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 18:41:56,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:41:59,142 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-11-18 18:41:59,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:41:59,277 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-11-18 18:41:59,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:41:59,410 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-11-18 18:41:59,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:42:01,285 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 18:42:01,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:42:01,400 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-11-18 18:42:01,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:42:01,412 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-11-18 18:42:01,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:42:01,558 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-11-18 18:42:01,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:42:02,209 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2022-11-18 18:42:02,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:42:02,379 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 6 proven. 23 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2022-11-18 18:42:02,379 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 18:42:02,379 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [988727451] [2022-11-18 18:42:02,379 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [988727451] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 18:42:02,379 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1303960512] [2022-11-18 18:42:02,380 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:42:02,380 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 18:42:02,380 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a89ab89e-04b0-402b-878d-427a879837fc/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 18:42:02,381 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a89ab89e-04b0-402b-878d-427a879837fc/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 18:42:02,406 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a89ab89e-04b0-402b-878d-427a879837fc/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-11-18 18:42:02,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:42:02,631 INFO L263 TraceCheckSpWp]: Trace formula consists of 478 conjuncts, 177 conjunts are in the unsatisfiable core [2022-11-18 18:42:02,644 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 18:42:03,012 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-11-18 18:42:03,013 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 21 [2022-11-18 18:42:03,258 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-11-18 18:42:03,259 INFO L350 Elim1Store]: Elim1 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 17 treesize of output 21 [2022-11-18 18:42:03,304 INFO L350 Elim1Store]: Elim1 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 [2022-11-18 18:42:03,314 INFO L350 Elim1Store]: Elim1 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 [2022-11-18 18:42:04,340 INFO L321 Elim1Store]: treesize reduction 15, result has 54.5 percent of original size [2022-11-18 18:42:04,341 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 410 treesize of output 274 [2022-11-18 18:42:04,436 INFO L321 Elim1Store]: treesize reduction 44, result has 44.3 percent of original size [2022-11-18 18:42:04,437 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 5 case distinctions, treesize of input 266 treesize of output 205 [2022-11-18 18:42:04,548 INFO L321 Elim1Store]: treesize reduction 122, result has 22.3 percent of original size [2022-11-18 18:42:04,549 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 3 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 6 new quantified variables, introduced 9 case distinctions, treesize of input 179 treesize of output 207 [2022-11-18 18:42:04,573 INFO L350 Elim1Store]: Elim1 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 8 treesize of output 7 [2022-11-18 18:42:04,596 INFO L350 Elim1Store]: Elim1 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 8 treesize of output 7 [2022-11-18 18:42:04,903 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2022-11-18 18:42:04,983 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 14 [2022-11-18 18:42:04,993 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 5 treesize of output 3 [2022-11-18 18:42:05,124 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 5 treesize of output 3 [2022-11-18 18:42:05,209 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 91 treesize of output 102 [2022-11-18 18:42:05,400 INFO L321 Elim1Store]: treesize reduction 19, result has 5.0 percent of original size [2022-11-18 18:42:05,404 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 2 case distinctions, treesize of input 31 treesize of output 3 [2022-11-18 18:42:05,517 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 24 treesize of output 20 [2022-11-18 18:42:05,523 WARN L319 FreeRefinementEngine]: Global settings require throwing the following exception [2022-11-18 18:42:05,538 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a89ab89e-04b0-402b-878d-427a879837fc/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-11-18 18:42:05,731 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a89ab89e-04b0-402b-878d-427a879837fc/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 18:42:05,732 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.AssertionError: no need to replace index at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.DerPreprocessor.constructReplacementForSelectCase(DerPreprocessor.java:333) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.DerPreprocessor.constructDerEnabler(DerPreprocessor.java:187) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.DerPreprocessor.(DerPreprocessor.java:144) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.ElimStorePlain.applyComplexEliminationRules(ElimStorePlain.java:353) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.DualJunctionSaa.tryToEliminate(DualJunctionSaa.java:190) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.DualJunctionSaa.tryToEliminateOne3(DualJunctionSaa.java:172) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.DualJunctionSaa.tryToEliminateOne2(DualJunctionSaa.java:151) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.DualJunctionSaa.tryToEliminateOne1(DualJunctionSaa.java:140) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.DualJunctionSaa.tryToEliminateOne0(DualJunctionSaa.java:122) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.DualJunctionSaa.tryToEliminateOne(DualJunctionSaa.java:108) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.DualJunctionSaa.tryExhaustivelyToEliminate(DualJunctionSaa.java:93) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.DualJunctionSaa.tryToEliminate(DualJunctionSaa.java:88) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.tryToEliminateOne(QuantifierPusher.java:627) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.applyNewEliminationTechniquesExhaustively(QuantifierPusher.java:606) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.applyDualJunctionEliminationTechniques(QuantifierPusher.java:528) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.tryToPushOverDualFiniteConnective(QuantifierPusher.java:332) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushTermWalker.convert(QuantifierPushTermWalker.java:188) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushTermWalker.convert(QuantifierPushTermWalker.java:1) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.TermContextTransformationEngine$ApplicationTermTask.doStep(TermContextTransformationEngine.java:169) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.TermContextTransformationEngine.transform(TermContextTransformationEngine.java:77) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.TermContextTransformationEngine.transform(TermContextTransformationEngine.java:61) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushTermWalker.eliminate(QuantifierPushTermWalker.java:295) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushTermWalker.eliminate(QuantifierPushTermWalker.java:281) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.PartialQuantifierElimination.eliminate(PartialQuantifierElimination.java:90) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.predicates.IterativePredicateTransformer$QuantifierEliminationPostprocessor.postprocess(IterativePredicateTransformer.java:238) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.predicates.IterativePredicateTransformer.applyPostprocessors(IterativePredicateTransformer.java:420) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.predicates.IterativePredicateTransformer.computeStrongestPostconditionSequence(IterativePredicateTransformer.java:199) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckSpWp.computeInterpolantsUsingUnsatCore(TraceCheckSpWp.java:299) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckSpWp.computeInterpolants(TraceCheckSpWp.java:185) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckSpWp.(TraceCheckSpWp.java:163) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSpWp.construct(IpTcStrategyModuleSpWp.java:108) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSpWp.construct(IpTcStrategyModuleSpWp.java:1) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:101) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getInterpolantComputationStatus(IpTcStrategyModuleBase.java:77) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.tryExecuteInterpolantGenerator(AutomatonFreeRefinementEngine.java:266) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.generateProof(AutomatonFreeRefinementEngine.java:147) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:137) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:85) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:82) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:336) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:431) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.startCegar(AbstractCegarLoop.java:366) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.runCegar(AbstractCegarLoop.java:348) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.executeCegarLoop(TraceAbstractionStarter.java:415) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseProgram(TraceAbstractionStarter.java:302) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseSequentialProgram(TraceAbstractionStarter.java:262) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:175) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:154) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:124) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2022-11-18 18:42:05,735 INFO L158 Benchmark]: Toolchain (without parser) took 41986.63ms. Allocated memory was 138.4MB in the beginning and 482.3MB in the end (delta: 343.9MB). Free memory was 102.9MB in the beginning and 347.9MB in the end (delta: -245.0MB). Peak memory consumption was 98.0MB. Max. memory is 16.1GB. [2022-11-18 18:42:05,735 INFO L158 Benchmark]: CDTParser took 0.34ms. Allocated memory is still 83.9MB. Free memory was 39.0MB in the beginning and 38.9MB in the end (delta: 40.7kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-18 18:42:05,736 INFO L158 Benchmark]: CACSL2BoogieTranslator took 788.03ms. Allocated memory is still 138.4MB. Free memory was 102.6MB in the beginning and 103.0MB in the end (delta: -396.1kB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-11-18 18:42:05,736 INFO L158 Benchmark]: Boogie Procedure Inliner took 60.00ms. Allocated memory is still 138.4MB. Free memory was 103.0MB in the beginning and 100.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-18 18:42:05,736 INFO L158 Benchmark]: Boogie Preprocessor took 60.96ms. Allocated memory is still 138.4MB. Free memory was 100.9MB in the beginning and 98.7MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-18 18:42:05,736 INFO L158 Benchmark]: RCFGBuilder took 943.11ms. Allocated memory is still 138.4MB. Free memory was 98.7MB in the beginning and 78.6MB in the end (delta: 20.1MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. [2022-11-18 18:42:05,737 INFO L158 Benchmark]: TraceAbstraction took 40125.62ms. Allocated memory was 138.4MB in the beginning and 482.3MB in the end (delta: 343.9MB). Free memory was 77.8MB in the beginning and 347.9MB in the end (delta: -270.1MB). Peak memory consumption was 75.3MB. Max. memory is 16.1GB. [2022-11-18 18:42:05,738 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.34ms. Allocated memory is still 83.9MB. Free memory was 39.0MB in the beginning and 38.9MB in the end (delta: 40.7kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 788.03ms. Allocated memory is still 138.4MB. Free memory was 102.6MB in the beginning and 103.0MB in the end (delta: -396.1kB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 60.00ms. Allocated memory is still 138.4MB. Free memory was 103.0MB in the beginning and 100.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 60.96ms. Allocated memory is still 138.4MB. Free memory was 100.9MB in the beginning and 98.7MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 943.11ms. Allocated memory is still 138.4MB. Free memory was 98.7MB in the beginning and 78.6MB in the end (delta: 20.1MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. * TraceAbstraction took 40125.62ms. Allocated memory was 138.4MB in the beginning and 482.3MB in the end (delta: 343.9MB). Free memory was 77.8MB in the beginning and 347.9MB in the end (delta: -270.1MB). Peak memory consumption was 75.3MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: AssertionError: no need to replace index de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: AssertionError: no need to replace index: de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.DerPreprocessor.constructReplacementForSelectCase(DerPreprocessor.java:333) RESULT: Ultimate could not prove your program: Toolchain returned no result. [2022-11-18 18:42:05,763 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a89ab89e-04b0-402b-878d-427a879837fc/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 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/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a89ab89e-04b0-402b-878d-427a879837fc/bin/uautomizer-TMbwUNV5ro/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a89ab89e-04b0-402b-878d-427a879837fc/bin/uautomizer-TMbwUNV5ro/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a89ab89e-04b0-402b-878d-427a879837fc/bin/uautomizer-TMbwUNV5ro/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a89ab89e-04b0-402b-878d-427a879837fc/bin/uautomizer-TMbwUNV5ro/config/AutomizerReach.xml -i ../../sv-benchmarks/c/ldv-sets/test_mutex.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a89ab89e-04b0-402b-878d-427a879837fc/bin/uautomizer-TMbwUNV5ro/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a89ab89e-04b0-402b-878d-427a879837fc/bin/uautomizer-TMbwUNV5ro --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 Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash cee8df08ffad3eb9e493a0be0076215dd3a59bce6d2370397b3bb712a7fad867 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-8393723 [2022-11-18 18:42:08,402 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-18 18:42:08,405 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-18 18:42:08,427 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-18 18:42:08,427 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-18 18:42:08,429 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-18 18:42:08,430 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-18 18:42:08,433 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-18 18:42:08,435 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-18 18:42:08,436 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-18 18:42:08,437 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-18 18:42:08,439 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-18 18:42:08,439 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-18 18:42:08,441 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-18 18:42:08,442 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-18 18:42:08,444 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-18 18:42:08,445 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-18 18:42:08,446 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-18 18:42:08,448 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-18 18:42:08,451 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-18 18:42:08,453 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-18 18:42:08,455 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-18 18:42:08,456 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-18 18:42:08,458 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-18 18:42:08,462 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-18 18:42:08,463 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-18 18:42:08,463 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-18 18:42:08,465 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-18 18:42:08,465 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-18 18:42:08,467 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-18 18:42:08,467 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-18 18:42:08,468 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-18 18:42:08,470 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-18 18:42:08,471 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-18 18:42:08,472 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-18 18:42:08,473 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-18 18:42:08,474 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-18 18:42:08,474 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-18 18:42:08,475 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-18 18:42:08,476 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-18 18:42:08,477 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-18 18:42:08,478 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a89ab89e-04b0-402b-878d-427a879837fc/bin/uautomizer-TMbwUNV5ro/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2022-11-18 18:42:08,507 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-18 18:42:08,507 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-18 18:42:08,508 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-18 18:42:08,508 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-18 18:42:08,509 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-18 18:42:08,509 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-18 18:42:08,510 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-18 18:42:08,511 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-18 18:42:08,511 INFO L138 SettingsManager]: * Use SBE=true [2022-11-18 18:42:08,511 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-18 18:42:08,511 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-18 18:42:08,512 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-18 18:42:08,512 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-18 18:42:08,512 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-18 18:42:08,512 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-18 18:42:08,513 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-18 18:42:08,513 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-11-18 18:42:08,513 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-11-18 18:42:08,514 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-11-18 18:42:08,514 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-18 18:42:08,514 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-18 18:42:08,514 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-18 18:42:08,515 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-18 18:42:08,515 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-18 18:42:08,515 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-18 18:42:08,516 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-18 18:42:08,516 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-18 18:42:08,516 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-18 18:42:08,517 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-18 18:42:08,517 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-18 18:42:08,517 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2022-11-18 18:42:08,517 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-11-18 18:42:08,518 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-18 18:42:08,518 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-18 18:42:08,518 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-18 18:42:08,519 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-18 18:42:08,519 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_a89ab89e-04b0-402b-878d-427a879837fc/bin/uautomizer-TMbwUNV5ro/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a89ab89e-04b0-402b-878d-427a879837fc/bin/uautomizer-TMbwUNV5ro Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> cee8df08ffad3eb9e493a0be0076215dd3a59bce6d2370397b3bb712a7fad867 [2022-11-18 18:42:08,948 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-18 18:42:08,975 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-18 18:42:08,979 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-18 18:42:08,980 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-18 18:42:08,981 INFO L275 PluginConnector]: CDTParser initialized [2022-11-18 18:42:08,983 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a89ab89e-04b0-402b-878d-427a879837fc/bin/uautomizer-TMbwUNV5ro/../../sv-benchmarks/c/ldv-sets/test_mutex.i [2022-11-18 18:42:09,085 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a89ab89e-04b0-402b-878d-427a879837fc/bin/uautomizer-TMbwUNV5ro/data/16f40924a/0572fc1f0eb444b5b3bb16674859488c/FLAG9afb4053f [2022-11-18 18:42:09,953 INFO L306 CDTParser]: Found 1 translation units. [2022-11-18 18:42:09,958 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a89ab89e-04b0-402b-878d-427a879837fc/sv-benchmarks/c/ldv-sets/test_mutex.i [2022-11-18 18:42:09,973 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a89ab89e-04b0-402b-878d-427a879837fc/bin/uautomizer-TMbwUNV5ro/data/16f40924a/0572fc1f0eb444b5b3bb16674859488c/FLAG9afb4053f [2022-11-18 18:42:10,149 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a89ab89e-04b0-402b-878d-427a879837fc/bin/uautomizer-TMbwUNV5ro/data/16f40924a/0572fc1f0eb444b5b3bb16674859488c [2022-11-18 18:42:10,152 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-18 18:42:10,154 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-18 18:42:10,155 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-18 18:42:10,155 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-18 18:42:10,160 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-18 18:42:10,161 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 06:42:10" (1/1) ... [2022-11-18 18:42:10,163 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@37f7bd17 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:42:10, skipping insertion in model container [2022-11-18 18:42:10,163 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 06:42:10" (1/1) ... [2022-11-18 18:42:10,172 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-18 18:42:10,213 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-18 18:42:10,664 WARN L234 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_a89ab89e-04b0-402b-878d-427a879837fc/sv-benchmarks/c/ldv-sets/test_mutex.i[25842,25855] [2022-11-18 18:42:10,676 WARN L234 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_a89ab89e-04b0-402b-878d-427a879837fc/sv-benchmarks/c/ldv-sets/test_mutex.i[25967,25980] [2022-11-18 18:42:10,678 WARN L234 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_a89ab89e-04b0-402b-878d-427a879837fc/sv-benchmarks/c/ldv-sets/test_mutex.i[26082,26095] [2022-11-18 18:42:10,681 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-18 18:42:10,697 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2022-11-18 18:42:10,707 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-18 18:42:10,748 WARN L234 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_a89ab89e-04b0-402b-878d-427a879837fc/sv-benchmarks/c/ldv-sets/test_mutex.i[25842,25855] [2022-11-18 18:42:10,750 WARN L234 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_a89ab89e-04b0-402b-878d-427a879837fc/sv-benchmarks/c/ldv-sets/test_mutex.i[25967,25980] [2022-11-18 18:42:10,751 WARN L234 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_a89ab89e-04b0-402b-878d-427a879837fc/sv-benchmarks/c/ldv-sets/test_mutex.i[26082,26095] [2022-11-18 18:42:10,753 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-18 18:42:10,756 INFO L203 MainTranslator]: Completed pre-run [2022-11-18 18:42:10,804 WARN L234 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_a89ab89e-04b0-402b-878d-427a879837fc/sv-benchmarks/c/ldv-sets/test_mutex.i[25842,25855] [2022-11-18 18:42:10,806 WARN L234 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_a89ab89e-04b0-402b-878d-427a879837fc/sv-benchmarks/c/ldv-sets/test_mutex.i[25967,25980] [2022-11-18 18:42:10,807 WARN L234 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_a89ab89e-04b0-402b-878d-427a879837fc/sv-benchmarks/c/ldv-sets/test_mutex.i[26082,26095] [2022-11-18 18:42:10,809 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-18 18:42:10,848 INFO L208 MainTranslator]: Completed translation [2022-11-18 18:42:10,848 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:42:10 WrapperNode [2022-11-18 18:42:10,848 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-18 18:42:10,850 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-18 18:42:10,850 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-18 18:42:10,850 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-18 18:42:10,859 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:42:10" (1/1) ... [2022-11-18 18:42:10,896 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:42:10" (1/1) ... [2022-11-18 18:42:10,937 INFO L138 Inliner]: procedures = 140, calls = 57, calls flagged for inlining = 14, calls inlined = 13, statements flattened = 125 [2022-11-18 18:42:10,938 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-18 18:42:10,939 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-18 18:42:10,939 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-18 18:42:10,939 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-18 18:42:10,951 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:42:10" (1/1) ... [2022-11-18 18:42:10,951 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:42:10" (1/1) ... [2022-11-18 18:42:10,956 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:42:10" (1/1) ... [2022-11-18 18:42:10,957 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:42:10" (1/1) ... [2022-11-18 18:42:10,971 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:42:10" (1/1) ... [2022-11-18 18:42:10,976 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:42:10" (1/1) ... [2022-11-18 18:42:10,979 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:42:10" (1/1) ... [2022-11-18 18:42:10,981 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:42:10" (1/1) ... [2022-11-18 18:42:10,986 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-18 18:42:10,987 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-18 18:42:10,988 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-18 18:42:10,988 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-18 18:42:10,989 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:42:10" (1/1) ... [2022-11-18 18:42:11,006 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-18 18:42:11,019 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a89ab89e-04b0-402b-878d-427a879837fc/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 18:42:11,048 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a89ab89e-04b0-402b-878d-427a879837fc/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-18 18:42:11,079 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a89ab89e-04b0-402b-878d-427a879837fc/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-18 18:42:11,116 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_list_add [2022-11-18 18:42:11,116 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_list_add [2022-11-18 18:42:11,117 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2022-11-18 18:42:11,118 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2022-11-18 18:42:11,118 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-18 18:42:11,118 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock [2022-11-18 18:42:11,118 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock [2022-11-18 18:42:11,118 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-18 18:42:11,119 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-18 18:42:11,119 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_in_set [2022-11-18 18:42:11,119 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_in_set [2022-11-18 18:42:11,119 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-18 18:42:11,119 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-18 18:42:11,120 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-11-18 18:42:11,120 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-11-18 18:42:11,120 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_successful_malloc [2022-11-18 18:42:11,120 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_successful_malloc [2022-11-18 18:42:11,120 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-18 18:42:11,120 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-18 18:42:11,348 INFO L235 CfgBuilder]: Building ICFG [2022-11-18 18:42:11,351 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-18 18:42:11,927 INFO L276 CfgBuilder]: Performing block encoding [2022-11-18 18:42:11,936 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-18 18:42:11,936 INFO L300 CfgBuilder]: Removed 2 assume(true) statements. [2022-11-18 18:42:11,939 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 06:42:11 BoogieIcfgContainer [2022-11-18 18:42:11,939 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-18 18:42:11,961 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-18 18:42:11,962 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-18 18:42:11,966 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-18 18:42:11,967 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 06:42:10" (1/3) ... [2022-11-18 18:42:11,968 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2ea5b74f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 06:42:11, skipping insertion in model container [2022-11-18 18:42:11,968 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:42:10" (2/3) ... [2022-11-18 18:42:11,968 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2ea5b74f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 06:42:11, skipping insertion in model container [2022-11-18 18:42:11,969 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 06:42:11" (3/3) ... [2022-11-18 18:42:11,971 INFO L112 eAbstractionObserver]: Analyzing ICFG test_mutex.i [2022-11-18 18:42:11,996 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-18 18:42:11,997 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2022-11-18 18:42:12,064 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-18 18:42:12,071 INFO L357 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=PETRI_NET, 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, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@28d0cfcb, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-18 18:42:12,072 INFO L358 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2022-11-18 18:42:12,078 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) [2022-11-18 18:42:12,088 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2022-11-18 18:42:12,088 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 18:42:12,089 INFO L195 NwaCegarLoop]: 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] [2022-11-18 18:42:12,090 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting mutex_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [mutex_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, mutex_lockErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 18:42:12,097 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:42:12,098 INFO L85 PathProgramCache]: Analyzing trace with hash 673246785, now seen corresponding path program 1 times [2022-11-18 18:42:12,114 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-18 18:42:12,115 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1564447695] [2022-11-18 18:42:12,115 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:42:12,116 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-18 18:42:12,116 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a89ab89e-04b0-402b-878d-427a879837fc/bin/uautomizer-TMbwUNV5ro/mathsat [2022-11-18 18:42:12,123 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a89ab89e-04b0-402b-878d-427a879837fc/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-18 18:42:12,150 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a89ab89e-04b0-402b-878d-427a879837fc/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2022-11-18 18:42:12,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:42:12,383 INFO L263 TraceCheckSpWp]: Trace formula consists of 109 conjuncts, 1 conjunts are in the unsatisfiable core [2022-11-18 18:42:12,395 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 18:42:12,447 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-18 18:42:12,448 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-18 18:42:12,449 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-18 18:42:12,450 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1564447695] [2022-11-18 18:42:12,451 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1564447695] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 18:42:12,451 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 18:42:12,452 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 18:42:12,454 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1426064654] [2022-11-18 18:42:12,455 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 18:42:12,462 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-18 18:42:12,462 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-18 18:42:12,510 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-18 18:42:12,512 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-18 18:42:12,515 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 9.5) internal successors, (19), 2 states have internal predecessors, (19), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2022-11-18 18:42:12,590 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 18:42:12,592 INFO L93 Difference]: Finished difference Result 130 states and 171 transitions. [2022-11-18 18:42:12,593 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-18 18:42:12,595 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 9.5) internal successors, (19), 2 states have internal predecessors, (19), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 27 [2022-11-18 18:42:12,596 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 18:42:12,612 INFO L225 Difference]: With dead ends: 130 [2022-11-18 18:42:12,613 INFO L226 Difference]: Without dead ends: 62 [2022-11-18 18:42:12,620 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-18 18:42:12,626 INFO L413 NwaCegarLoop]: 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 [2022-11-18 18:42:12,628 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 77 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-18 18:42:12,651 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62 states. [2022-11-18 18:42:12,694 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62 to 62. [2022-11-18 18:42:12,697 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) [2022-11-18 18:42:12,706 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62 states to 62 states and 72 transitions. [2022-11-18 18:42:12,708 INFO L78 Accepts]: Start accepts. Automaton has 62 states and 72 transitions. Word has length 27 [2022-11-18 18:42:12,709 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 18:42:12,710 INFO L495 AbstractCegarLoop]: Abstraction has 62 states and 72 transitions. [2022-11-18 18:42:12,711 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 9.5) internal successors, (19), 2 states have internal predecessors, (19), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2022-11-18 18:42:12,712 INFO L276 IsEmpty]: Start isEmpty. Operand 62 states and 72 transitions. [2022-11-18 18:42:12,714 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2022-11-18 18:42:12,715 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 18:42:12,716 INFO L195 NwaCegarLoop]: 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] [2022-11-18 18:42:12,738 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a89ab89e-04b0-402b-878d-427a879837fc/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2022-11-18 18:42:12,932 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a89ab89e-04b0-402b-878d-427a879837fc/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-18 18:42:12,933 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting mutex_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [mutex_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, mutex_lockErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 18:42:12,934 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:42:12,935 INFO L85 PathProgramCache]: Analyzing trace with hash -387762175, now seen corresponding path program 1 times [2022-11-18 18:42:12,939 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-18 18:42:12,940 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [277964037] [2022-11-18 18:42:12,940 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:42:12,941 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-18 18:42:12,941 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a89ab89e-04b0-402b-878d-427a879837fc/bin/uautomizer-TMbwUNV5ro/mathsat [2022-11-18 18:42:12,944 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a89ab89e-04b0-402b-878d-427a879837fc/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-18 18:42:12,951 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a89ab89e-04b0-402b-878d-427a879837fc/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2022-11-18 18:42:13,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:42:13,141 INFO L263 TraceCheckSpWp]: Trace formula consists of 109 conjuncts, 15 conjunts are in the unsatisfiable core [2022-11-18 18:42:13,145 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 18:42:13,721 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-11-18 18:42:13,721 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-18 18:42:13,722 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-18 18:42:13,722 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [277964037] [2022-11-18 18:42:13,722 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [277964037] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 18:42:13,723 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 18:42:13,723 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-18 18:42:13,723 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [894330016] [2022-11-18 18:42:13,723 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 18:42:13,725 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-18 18:42:13,725 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-18 18:42:13,726 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-18 18:42:13,726 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-18 18:42:13,727 INFO L87 Difference]: Start difference. First operand 62 states and 72 transitions. Second operand has 5 states, 5 states have (on average 3.2) internal successors, (16), 4 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) [2022-11-18 18:42:14,427 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 18:42:14,427 INFO L93 Difference]: Finished difference Result 170 states and 208 transitions. [2022-11-18 18:42:14,428 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-18 18:42:14,428 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 3.2) internal successors, (16), 4 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 [2022-11-18 18:42:14,429 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 18:42:14,432 INFO L225 Difference]: With dead ends: 170 [2022-11-18 18:42:14,432 INFO L226 Difference]: Without dead ends: 116 [2022-11-18 18:42:14,433 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2022-11-18 18:42:14,436 INFO L413 NwaCegarLoop]: 72 mSDtfsCounter, 65 mSDsluCounter, 112 mSDsCounter, 0 mSdLazyCounter, 87 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 70 SdHoareTripleChecker+Valid, 184 SdHoareTripleChecker+Invalid, 89 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 87 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-11-18 18:42:14,437 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [70 Valid, 184 Invalid, 89 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 87 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-11-18 18:42:14,442 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 116 states. [2022-11-18 18:42:14,478 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 116 to 101. [2022-11-18 18:42:14,480 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 101 states, 70 states have (on average 1.2142857142857142) internal successors, (85), 74 states have internal predecessors, (85), 18 states have call successors, (18), 9 states have call predecessors, (18), 10 states have return successors, (23), 17 states have call predecessors, (23), 18 states have call successors, (23) [2022-11-18 18:42:14,489 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 101 states to 101 states and 126 transitions. [2022-11-18 18:42:14,489 INFO L78 Accepts]: Start accepts. Automaton has 101 states and 126 transitions. Word has length 27 [2022-11-18 18:42:14,490 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 18:42:14,491 INFO L495 AbstractCegarLoop]: Abstraction has 101 states and 126 transitions. [2022-11-18 18:42:14,492 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 3.2) internal successors, (16), 4 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) [2022-11-18 18:42:14,492 INFO L276 IsEmpty]: Start isEmpty. Operand 101 states and 126 transitions. [2022-11-18 18:42:14,493 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2022-11-18 18:42:14,493 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 18:42:14,494 INFO L195 NwaCegarLoop]: 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] [2022-11-18 18:42:14,518 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a89ab89e-04b0-402b-878d-427a879837fc/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2022-11-18 18:42:14,709 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a89ab89e-04b0-402b-878d-427a879837fc/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-18 18:42:14,709 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting mutex_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [mutex_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, mutex_lockErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 18:42:14,710 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:42:14,710 INFO L85 PathProgramCache]: Analyzing trace with hash -438555830, now seen corresponding path program 1 times [2022-11-18 18:42:14,711 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-18 18:42:14,711 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [593809562] [2022-11-18 18:42:14,711 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:42:14,711 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-18 18:42:14,711 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a89ab89e-04b0-402b-878d-427a879837fc/bin/uautomizer-TMbwUNV5ro/mathsat [2022-11-18 18:42:14,714 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a89ab89e-04b0-402b-878d-427a879837fc/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-18 18:42:14,723 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a89ab89e-04b0-402b-878d-427a879837fc/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2022-11-18 18:42:14,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:42:14,859 INFO L263 TraceCheckSpWp]: Trace formula consists of 106 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-18 18:42:14,861 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 18:42:14,892 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-11-18 18:42:14,892 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-18 18:42:14,893 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-18 18:42:14,893 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [593809562] [2022-11-18 18:42:14,893 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [593809562] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 18:42:14,896 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 18:42:14,896 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-18 18:42:14,897 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [282400529] [2022-11-18 18:42:14,897 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 18:42:14,897 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-18 18:42:14,898 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-18 18:42:14,899 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-18 18:42:14,899 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-18 18:42:14,899 INFO L87 Difference]: Start difference. First operand 101 states and 126 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) [2022-11-18 18:42:14,950 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 18:42:14,950 INFO L93 Difference]: Finished difference Result 108 states and 135 transitions. [2022-11-18 18:42:14,951 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-18 18:42:14,953 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 [2022-11-18 18:42:14,955 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 18:42:14,962 INFO L225 Difference]: With dead ends: 108 [2022-11-18 18:42:14,962 INFO L226 Difference]: Without dead ends: 106 [2022-11-18 18:42:14,964 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-18 18:42:14,968 INFO L413 NwaCegarLoop]: 73 mSDtfsCounter, 0 mSDsluCounter, 139 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 212 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-18 18:42:14,969 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 212 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-18 18:42:14,972 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 106 states. [2022-11-18 18:42:15,022 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 106 to 104. [2022-11-18 18:42:15,024 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 104 states, 72 states have (on average 1.1944444444444444) internal successors, (86), 76 states have internal predecessors, (86), 18 states have call successors, (18), 9 states have call predecessors, (18), 11 states have return successors, (26), 18 states have call predecessors, (26), 18 states have call successors, (26) [2022-11-18 18:42:15,026 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104 states to 104 states and 130 transitions. [2022-11-18 18:42:15,026 INFO L78 Accepts]: Start accepts. Automaton has 104 states and 130 transitions. Word has length 27 [2022-11-18 18:42:15,026 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 18:42:15,027 INFO L495 AbstractCegarLoop]: Abstraction has 104 states and 130 transitions. [2022-11-18 18:42:15,027 INFO L496 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) [2022-11-18 18:42:15,027 INFO L276 IsEmpty]: Start isEmpty. Operand 104 states and 130 transitions. [2022-11-18 18:42:15,033 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2022-11-18 18:42:15,033 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 18:42:15,034 INFO L195 NwaCegarLoop]: 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] [2022-11-18 18:42:15,058 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a89ab89e-04b0-402b-878d-427a879837fc/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2022-11-18 18:42:15,250 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a89ab89e-04b0-402b-878d-427a879837fc/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-18 18:42:15,250 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting mutex_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION === [mutex_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, mutex_lockErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 18:42:15,250 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:42:15,251 INFO L85 PathProgramCache]: Analyzing trace with hash -811626959, now seen corresponding path program 1 times [2022-11-18 18:42:15,251 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-18 18:42:15,251 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1072938086] [2022-11-18 18:42:15,252 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:42:15,252 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-18 18:42:15,252 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a89ab89e-04b0-402b-878d-427a879837fc/bin/uautomizer-TMbwUNV5ro/mathsat [2022-11-18 18:42:15,256 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a89ab89e-04b0-402b-878d-427a879837fc/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-18 18:42:15,267 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a89ab89e-04b0-402b-878d-427a879837fc/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2022-11-18 18:42:15,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:42:15,498 INFO L263 TraceCheckSpWp]: Trace formula consists of 240 conjuncts, 19 conjunts are in the unsatisfiable core [2022-11-18 18:42:15,504 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 18:42:15,734 INFO L350 Elim1Store]: Elim1 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 [2022-11-18 18:42:15,747 INFO L350 Elim1Store]: Elim1 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 [2022-11-18 18:42:16,147 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 39 proven. 0 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2022-11-18 18:42:16,148 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-18 18:42:16,148 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-18 18:42:16,148 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1072938086] [2022-11-18 18:42:16,149 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1072938086] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 18:42:16,149 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 18:42:16,149 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-18 18:42:16,150 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [760365604] [2022-11-18 18:42:16,150 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 18:42:16,151 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-18 18:42:16,151 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-18 18:42:16,151 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-18 18:42:16,152 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2022-11-18 18:42:16,152 INFO L87 Difference]: Start difference. First operand 104 states and 130 transitions. Second operand has 8 states, 7 states have (on average 5.428571428571429) 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) [2022-11-18 18:42:19,112 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 18:42:19,113 INFO L93 Difference]: Finished difference Result 268 states and 338 transitions. [2022-11-18 18:42:19,114 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-11-18 18:42:19,114 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 5.428571428571429) 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 [2022-11-18 18:42:19,114 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 18:42:19,117 INFO L225 Difference]: With dead ends: 268 [2022-11-18 18:42:19,117 INFO L226 Difference]: Without dead ends: 162 [2022-11-18 18:42:19,118 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 84 GetRequests, 67 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=87, Invalid=255, Unknown=0, NotChecked=0, Total=342 [2022-11-18 18:42:19,119 INFO L413 NwaCegarLoop]: 69 mSDtfsCounter, 169 mSDsluCounter, 241 mSDsCounter, 0 mSdLazyCounter, 394 mSolverCounterSat, 43 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 174 SdHoareTripleChecker+Valid, 310 SdHoareTripleChecker+Invalid, 437 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 43 IncrementalHoareTripleChecker+Valid, 394 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2022-11-18 18:42:19,120 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [174 Valid, 310 Invalid, 437 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [43 Valid, 394 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2022-11-18 18:42:19,121 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 162 states. [2022-11-18 18:42:19,159 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 162 to 122. [2022-11-18 18:42:19,160 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) [2022-11-18 18:42:19,163 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 122 states to 122 states and 153 transitions. [2022-11-18 18:42:19,168 INFO L78 Accepts]: Start accepts. Automaton has 122 states and 153 transitions. Word has length 67 [2022-11-18 18:42:19,169 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 18:42:19,169 INFO L495 AbstractCegarLoop]: Abstraction has 122 states and 153 transitions. [2022-11-18 18:42:19,170 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 5.428571428571429) 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) [2022-11-18 18:42:19,170 INFO L276 IsEmpty]: Start isEmpty. Operand 122 states and 153 transitions. [2022-11-18 18:42:19,176 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2022-11-18 18:42:19,179 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 18:42:19,179 INFO L195 NwaCegarLoop]: 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] [2022-11-18 18:42:19,201 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a89ab89e-04b0-402b-878d-427a879837fc/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2022-11-18 18:42:19,396 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a89ab89e-04b0-402b-878d-427a879837fc/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-18 18:42:19,396 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting mutex_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION === [mutex_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, mutex_lockErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 18:42:19,396 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:42:19,397 INFO L85 PathProgramCache]: Analyzing trace with hash 1108503363, now seen corresponding path program 1 times [2022-11-18 18:42:19,397 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-18 18:42:19,397 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [748255760] [2022-11-18 18:42:19,398 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:42:19,398 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-18 18:42:19,398 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a89ab89e-04b0-402b-878d-427a879837fc/bin/uautomizer-TMbwUNV5ro/mathsat [2022-11-18 18:42:19,399 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a89ab89e-04b0-402b-878d-427a879837fc/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-18 18:42:19,411 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a89ab89e-04b0-402b-878d-427a879837fc/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2022-11-18 18:42:19,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:42:19,591 INFO L263 TraceCheckSpWp]: Trace formula consists of 234 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-18 18:42:19,594 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 18:42:19,625 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 38 proven. 0 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2022-11-18 18:42:19,625 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-18 18:42:19,626 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-18 18:42:19,627 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [748255760] [2022-11-18 18:42:19,627 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [748255760] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 18:42:19,627 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 18:42:19,628 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-18 18:42:19,628 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1828656107] [2022-11-18 18:42:19,628 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 18:42:19,628 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-18 18:42:19,629 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-18 18:42:19,630 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-18 18:42:19,631 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-18 18:42:19,631 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) [2022-11-18 18:42:19,671 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 18:42:19,671 INFO L93 Difference]: Finished difference Result 196 states and 237 transitions. [2022-11-18 18:42:19,672 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-18 18:42:19,673 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 [2022-11-18 18:42:19,675 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 18:42:19,677 INFO L225 Difference]: With dead ends: 196 [2022-11-18 18:42:19,678 INFO L226 Difference]: Without dead ends: 109 [2022-11-18 18:42:19,681 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 64 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-18 18:42:19,682 INFO L413 NwaCegarLoop]: 72 mSDtfsCounter, 0 mSDsluCounter, 137 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 209 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-18 18:42:19,683 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 209 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-18 18:42:19,686 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 109 states. [2022-11-18 18:42:19,714 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 109 to 103. [2022-11-18 18:42:19,715 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) [2022-11-18 18:42:19,717 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 103 states to 103 states and 121 transitions. [2022-11-18 18:42:19,718 INFO L78 Accepts]: Start accepts. Automaton has 103 states and 121 transitions. Word has length 67 [2022-11-18 18:42:19,718 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 18:42:19,718 INFO L495 AbstractCegarLoop]: Abstraction has 103 states and 121 transitions. [2022-11-18 18:42:19,719 INFO L496 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) [2022-11-18 18:42:19,719 INFO L276 IsEmpty]: Start isEmpty. Operand 103 states and 121 transitions. [2022-11-18 18:42:19,721 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2022-11-18 18:42:19,722 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 18:42:19,722 INFO L195 NwaCegarLoop]: 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] [2022-11-18 18:42:19,745 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a89ab89e-04b0-402b-878d-427a879837fc/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2022-11-18 18:42:19,938 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a89ab89e-04b0-402b-878d-427a879837fc/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-18 18:42:19,939 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting mutex_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [mutex_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, mutex_lockErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 18:42:19,939 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:42:19,939 INFO L85 PathProgramCache]: Analyzing trace with hash -1210243856, now seen corresponding path program 1 times [2022-11-18 18:42:19,940 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-18 18:42:19,940 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [418732594] [2022-11-18 18:42:19,940 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:42:19,940 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-18 18:42:19,940 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a89ab89e-04b0-402b-878d-427a879837fc/bin/uautomizer-TMbwUNV5ro/mathsat [2022-11-18 18:42:19,941 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a89ab89e-04b0-402b-878d-427a879837fc/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-18 18:42:19,947 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a89ab89e-04b0-402b-878d-427a879837fc/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2022-11-18 18:42:20,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:42:20,309 INFO L263 TraceCheckSpWp]: Trace formula consists of 285 conjuncts, 91 conjunts are in the unsatisfiable core [2022-11-18 18:42:20,321 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 18:42:20,578 INFO L321 Elim1Store]: treesize reduction 17, result has 29.2 percent of original size [2022-11-18 18:42:20,579 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 14 treesize of output 20 [2022-11-18 18:42:20,883 INFO L321 Elim1Store]: treesize reduction 22, result has 29.0 percent of original size [2022-11-18 18:42:20,884 INFO L350 Elim1Store]: Elim1 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 20 treesize of output 22 [2022-11-18 18:42:21,026 INFO L350 Elim1Store]: Elim1 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 [2022-11-18 18:42:22,567 INFO L321 Elim1Store]: treesize reduction 117, result has 35.4 percent of original size [2022-11-18 18:42:22,573 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 3 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 92 treesize of output 229 [2022-11-18 18:42:22,622 INFO L350 Elim1Store]: Elim1 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 8 treesize of output 7 [2022-11-18 18:42:22,688 INFO L350 Elim1Store]: Elim1 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 8 treesize of output 7 [2022-11-18 18:42:22,729 INFO L350 Elim1Store]: Elim1 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 8 treesize of output 7 [2022-11-18 18:42:23,837 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-18 18:42:23,838 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-18 18:42:23,854 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-18 18:42:23,859 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 87 treesize of output 44 [2022-11-18 18:42:23,880 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 5 treesize of output 3 [2022-11-18 18:42:23,889 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 5 treesize of output 3 [2022-11-18 18:42:23,908 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-18 18:42:23,919 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-18 18:42:23,951 INFO L321 Elim1Store]: treesize reduction 24, result has 25.0 percent of original size [2022-11-18 18:42:23,952 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 153 treesize of output 100 [2022-11-18 18:42:23,993 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 5 treesize of output 3 [2022-11-18 18:42:24,051 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 5 treesize of output 3 [2022-11-18 18:42:24,121 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 5 treesize of output 3 [2022-11-18 18:42:26,719 INFO L350 Elim1Store]: Elim1 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 30 [2022-11-18 18:42:43,511 WARN L233 SmtUtils]: Spent 7.30s on a formula simplification that was a NOOP. DAG size: 96 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-18 18:42:48,969 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-18 18:45:21,715 WARN L233 SmtUtils]: Spent 2.55m on a formula simplification. DAG size of input: 57 DAG size of output: 31 (called from [L 318] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2022-11-18 18:45:21,716 INFO L321 Elim1Store]: treesize reduction 104, result has 33.8 percent of original size [2022-11-18 18:45:21,717 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 7 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 10 new quantified variables, introduced 9 case distinctions, treesize of input 912 treesize of output 825 [2022-11-18 18:45:21,755 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-18 18:45:21,898 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-18 18:51:29,855 WARN L233 SmtUtils]: Spent 6.13m on a formula simplification. DAG size of input: 163 DAG size of output: 69 (called from [L 318] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2022-11-18 18:51:29,856 INFO L321 Elim1Store]: treesize reduction 537, result has 27.8 percent of original size [2022-11-18 18:51:29,857 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 9 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 10 new quantified variables, introduced 36 case distinctions, treesize of input 912 treesize of output 2006 [2022-11-18 18:51:35,675 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-18 18:52:28,918 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-18 18:52:43,515 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-18 18:52:43,516 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-18 18:52:54,900 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-18 18:52:58,184 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-18 18:53:07,485 INFO L217 Elim1Store]: Index analysis took 95731 ms [2022-11-18 18:53:08,889 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-18 18:53:10,186 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-18 18:53:10,188 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-18 18:53:12,116 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-18 18:53:12,117 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-18 18:53:15,425 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-18 18:53:15,426 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-18 18:53:17,487 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-18 18:53:17,488 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-18 18:55:32,841 WARN L233 SmtUtils]: Spent 2.26m on a formula simplification. DAG size of input: 168 DAG size of output: 31 (called from [L 318] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2022-11-18 18:55:32,842 INFO L321 Elim1Store]: treesize reduction 860, result has 7.0 percent of original size [2022-11-18 18:55:32,843 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 10 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 27 case distinctions, treesize of input 912 treesize of output 2822 [2022-11-18 18:55:44,529 WARN L161 IndexEqualityManager]: solver failed to check if following equality is implied: (= v_prenex_31 (select (select v_arrayElimArr_16 (select v_arrayElimCell_20 |~#mutexes~0.offset|)) |~#mutexes~0.offset|)) [2022-11-18 18:55:46,537 WARN L177 IndexEqualityManager]: solver failed to check if following not equals relation is implied: (= v_prenex_31 (select (select v_arrayElimArr_16 (select v_arrayElimCell_20 |~#mutexes~0.offset|)) |~#mutexes~0.offset|)) [2022-11-18 18:55:46,541 INFO L350 Elim1Store]: Elim1 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 21 treesize of output 21 [2022-11-18 18:55:51,948 WARN L161 IndexEqualityManager]: solver failed to check if following equality is implied: (let ((.cse0 (select v_arrayElimCell_20 |~#mutexes~0.offset|))) (= (select (select v_arrayElimArr_15 .cse0) |~#mutexes~0.offset|) (select (select v_arrayElimArr_16 .cse0) |~#mutexes~0.offset|))) [2022-11-18 18:55:53,955 WARN L177 IndexEqualityManager]: solver failed to check if following not equals relation is implied: (let ((.cse0 (select v_arrayElimCell_20 |~#mutexes~0.offset|))) (= (select (select v_arrayElimArr_15 .cse0) |~#mutexes~0.offset|) (select (select v_arrayElimArr_16 .cse0) |~#mutexes~0.offset|))) [2022-11-18 18:55:53,959 INFO L350 Elim1Store]: Elim1 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 33 treesize of output 27