./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-sets/test_mutex_double_unlock.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 2329fc70 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23e0328d-eac7-4923-b485-1089d491d210/bin/utaipan-gh47qXpMRh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23e0328d-eac7-4923-b485-1089d491d210/bin/utaipan-gh47qXpMRh/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23e0328d-eac7-4923-b485-1089d491d210/bin/utaipan-gh47qXpMRh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23e0328d-eac7-4923-b485-1089d491d210/bin/utaipan-gh47qXpMRh/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-sets/test_mutex_double_unlock.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23e0328d-eac7-4923-b485-1089d491d210/bin/utaipan-gh47qXpMRh/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23e0328d-eac7-4923-b485-1089d491d210/bin/utaipan-gh47qXpMRh --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash d82f1b23bea4834b28dfbe602ddf1f3e06a3ee60a847e3002a9403f092f2c830 --- Real Ultimate output --- [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-2329fc7 [2022-12-14 05:02:42,474 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-14 05:02:42,475 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-14 05:02:42,488 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-14 05:02:42,488 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-14 05:02:42,489 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-14 05:02:42,490 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-14 05:02:42,491 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-14 05:02:42,492 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-14 05:02:42,493 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-14 05:02:42,493 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-14 05:02:42,494 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-14 05:02:42,494 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-14 05:02:42,495 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-14 05:02:42,495 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-14 05:02:42,496 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-14 05:02:42,497 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-14 05:02:42,497 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-14 05:02:42,498 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-14 05:02:42,499 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-14 05:02:42,500 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-14 05:02:42,502 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-14 05:02:42,504 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-14 05:02:42,505 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-14 05:02:42,509 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-14 05:02:42,509 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-14 05:02:42,509 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-14 05:02:42,510 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-14 05:02:42,510 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-14 05:02:42,511 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-14 05:02:42,511 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-14 05:02:42,511 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-14 05:02:42,512 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-14 05:02:42,512 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-14 05:02:42,513 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-14 05:02:42,513 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-14 05:02:42,513 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-14 05:02:42,513 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-14 05:02:42,513 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-14 05:02:42,514 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-14 05:02:42,514 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-14 05:02:42,515 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23e0328d-eac7-4923-b485-1089d491d210/bin/utaipan-gh47qXpMRh/config/svcomp-Reach-32bit-Taipan_Default.epf [2022-12-14 05:02:42,528 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-14 05:02:42,529 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-14 05:02:42,529 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-14 05:02:42,529 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-14 05:02:42,529 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-14 05:02:42,529 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-14 05:02:42,530 INFO L138 SettingsManager]: * User list type=DISABLED [2022-12-14 05:02:42,530 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-12-14 05:02:42,530 INFO L138 SettingsManager]: * Explicit value domain=true [2022-12-14 05:02:42,530 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-12-14 05:02:42,530 INFO L138 SettingsManager]: * Octagon Domain=false [2022-12-14 05:02:42,530 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-12-14 05:02:42,530 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-12-14 05:02:42,530 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-12-14 05:02:42,530 INFO L138 SettingsManager]: * Interval Domain=false [2022-12-14 05:02:42,530 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-12-14 05:02:42,531 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-12-14 05:02:42,531 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-12-14 05:02:42,531 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-14 05:02:42,531 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-14 05:02:42,531 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-14 05:02:42,531 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-14 05:02:42,531 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-14 05:02:42,532 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-14 05:02:42,532 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-14 05:02:42,532 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-14 05:02:42,532 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-14 05:02:42,532 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-14 05:02:42,532 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-14 05:02:42,532 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-14 05:02:42,532 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-14 05:02:42,532 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-14 05:02:42,532 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 05:02:42,533 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-14 05:02:42,533 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-12-14 05:02:42,533 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-14 05:02:42,533 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-14 05:02:42,533 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-12-14 05:02:42,533 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-14 05:02:42,533 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-14 05:02:42,533 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-12-14 05:02:42,533 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_23e0328d-eac7-4923-b485-1089d491d210/bin/utaipan-gh47qXpMRh/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23e0328d-eac7-4923-b485-1089d491d210/bin/utaipan-gh47qXpMRh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d82f1b23bea4834b28dfbe602ddf1f3e06a3ee60a847e3002a9403f092f2c830 [2022-12-14 05:02:42,702 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-14 05:02:42,722 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-14 05:02:42,724 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-14 05:02:42,725 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-14 05:02:42,725 INFO L275 PluginConnector]: CDTParser initialized [2022-12-14 05:02:42,726 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23e0328d-eac7-4923-b485-1089d491d210/bin/utaipan-gh47qXpMRh/../../sv-benchmarks/c/ldv-sets/test_mutex_double_unlock.i [2022-12-14 05:02:45,334 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-14 05:02:45,546 INFO L351 CDTParser]: Found 1 translation units. [2022-12-14 05:02:45,546 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23e0328d-eac7-4923-b485-1089d491d210/sv-benchmarks/c/ldv-sets/test_mutex_double_unlock.i [2022-12-14 05:02:45,554 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23e0328d-eac7-4923-b485-1089d491d210/bin/utaipan-gh47qXpMRh/data/fb9159efd/21cd035ffb524548a764c005c3eec851/FLAG07843b63c [2022-12-14 05:02:45,565 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23e0328d-eac7-4923-b485-1089d491d210/bin/utaipan-gh47qXpMRh/data/fb9159efd/21cd035ffb524548a764c005c3eec851 [2022-12-14 05:02:45,567 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-14 05:02:45,569 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-14 05:02:45,570 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-14 05:02:45,570 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-14 05:02:45,573 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-14 05:02:45,574 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 05:02:45" (1/1) ... [2022-12-14 05:02:45,575 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@38f90978 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:02:45, skipping insertion in model container [2022-12-14 05:02:45,575 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 05:02:45" (1/1) ... [2022-12-14 05:02:45,580 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-14 05:02:45,602 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-14 05:02:45,793 WARN L237 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_23e0328d-eac7-4923-b485-1089d491d210/sv-benchmarks/c/ldv-sets/test_mutex_double_unlock.i[25842,25855] [2022-12-14 05:02:45,797 WARN L237 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_23e0328d-eac7-4923-b485-1089d491d210/sv-benchmarks/c/ldv-sets/test_mutex_double_unlock.i[25967,25980] [2022-12-14 05:02:45,798 WARN L237 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_23e0328d-eac7-4923-b485-1089d491d210/sv-benchmarks/c/ldv-sets/test_mutex_double_unlock.i[26082,26095] [2022-12-14 05:02:45,800 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 05:02:45,807 INFO L203 MainTranslator]: Completed pre-run [2022-12-14 05:02:45,837 WARN L237 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_23e0328d-eac7-4923-b485-1089d491d210/sv-benchmarks/c/ldv-sets/test_mutex_double_unlock.i[25842,25855] [2022-12-14 05:02:45,838 WARN L237 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_23e0328d-eac7-4923-b485-1089d491d210/sv-benchmarks/c/ldv-sets/test_mutex_double_unlock.i[25967,25980] [2022-12-14 05:02:45,839 WARN L237 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_23e0328d-eac7-4923-b485-1089d491d210/sv-benchmarks/c/ldv-sets/test_mutex_double_unlock.i[26082,26095] [2022-12-14 05:02:45,840 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 05:02:45,856 INFO L208 MainTranslator]: Completed translation [2022-12-14 05:02:45,857 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:02:45 WrapperNode [2022-12-14 05:02:45,857 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-14 05:02:45,857 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-14 05:02:45,858 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-14 05:02:45,858 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-14 05:02:45,863 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:02:45" (1/1) ... [2022-12-14 05:02:45,872 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:02:45" (1/1) ... [2022-12-14 05:02:45,888 INFO L138 Inliner]: procedures = 139, calls = 57, calls flagged for inlining = 14, calls inlined = 13, statements flattened = 129 [2022-12-14 05:02:45,888 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-14 05:02:45,888 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-14 05:02:45,888 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-14 05:02:45,889 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-14 05:02:45,895 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:02:45" (1/1) ... [2022-12-14 05:02:45,895 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:02:45" (1/1) ... [2022-12-14 05:02:45,898 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:02:45" (1/1) ... [2022-12-14 05:02:45,898 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:02:45" (1/1) ... [2022-12-14 05:02:45,904 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:02:45" (1/1) ... [2022-12-14 05:02:45,906 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:02:45" (1/1) ... [2022-12-14 05:02:45,908 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:02:45" (1/1) ... [2022-12-14 05:02:45,908 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:02:45" (1/1) ... [2022-12-14 05:02:45,910 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-14 05:02:45,911 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-14 05:02:45,911 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-14 05:02:45,911 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-14 05:02:45,912 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:02:45" (1/1) ... [2022-12-14 05:02:45,916 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 05:02:45,923 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23e0328d-eac7-4923-b485-1089d491d210/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 05:02:45,932 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23e0328d-eac7-4923-b485-1089d491d210/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-14 05:02:45,934 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23e0328d-eac7-4923-b485-1089d491d210/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-14 05:02:45,957 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_list_add [2022-12-14 05:02:45,957 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_list_add [2022-12-14 05:02:45,957 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2022-12-14 05:02:45,958 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2022-12-14 05:02:45,958 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-12-14 05:02:45,958 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock [2022-12-14 05:02:45,958 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock [2022-12-14 05:02:45,958 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-14 05:02:45,958 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-12-14 05:02:45,958 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_in_set [2022-12-14 05:02:45,958 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_in_set [2022-12-14 05:02:45,958 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-12-14 05:02:45,958 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-14 05:02:45,958 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-12-14 05:02:45,958 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-14 05:02:45,958 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_successful_malloc [2022-12-14 05:02:45,958 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_successful_malloc [2022-12-14 05:02:45,958 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-14 05:02:45,958 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-14 05:02:46,057 INFO L235 CfgBuilder]: Building ICFG [2022-12-14 05:02:46,059 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-14 05:02:46,276 INFO L276 CfgBuilder]: Performing block encoding [2022-12-14 05:02:46,351 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-14 05:02:46,352 INFO L300 CfgBuilder]: Removed 2 assume(true) statements. [2022-12-14 05:02:46,354 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 05:02:46 BoogieIcfgContainer [2022-12-14 05:02:46,354 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-14 05:02:46,356 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-14 05:02:46,356 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-14 05:02:46,359 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-14 05:02:46,359 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.12 05:02:45" (1/3) ... [2022-12-14 05:02:46,360 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3e7454a7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 05:02:46, skipping insertion in model container [2022-12-14 05:02:46,360 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:02:45" (2/3) ... [2022-12-14 05:02:46,361 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3e7454a7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 05:02:46, skipping insertion in model container [2022-12-14 05:02:46,361 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 05:02:46" (3/3) ... [2022-12-14 05:02:46,362 INFO L112 eAbstractionObserver]: Analyzing ICFG test_mutex_double_unlock.i [2022-12-14 05:02:46,380 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-14 05:02:46,380 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2022-12-14 05:02:46,419 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-14 05:02:46,423 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=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@2c98155f, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-14 05:02:46,424 INFO L358 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2022-12-14 05:02:46,428 INFO L276 IsEmpty]: Start isEmpty. Operand has 49 states, 29 states have (on average 1.3448275862068966) internal successors, (39), 32 states have internal predecessors, (39), 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) [2022-12-14 05:02:46,435 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2022-12-14 05:02:46,435 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 05:02:46,436 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 05:02:46,436 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting mutex_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [mutex_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, mutex_lockErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 05:02:46,441 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 05:02:46,442 INFO L85 PathProgramCache]: Analyzing trace with hash -2142385474, now seen corresponding path program 1 times [2022-12-14 05:02:46,452 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 05:02:46,452 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [939897958] [2022-12-14 05:02:46,452 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 05:02:46,453 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 05:02:46,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 05:02:46,681 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-12-14 05:02:46,681 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 05:02:46,682 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [939897958] [2022-12-14 05:02:46,682 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [939897958] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 05:02:46,682 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 05:02:46,682 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-14 05:02:46,683 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1824711149] [2022-12-14 05:02:46,684 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 05:02:46,687 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-14 05:02:46,687 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 05:02:46,708 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-14 05:02:46,709 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-14 05:02:46,710 INFO L87 Difference]: Start difference. First operand has 49 states, 29 states have (on average 1.3448275862068966) internal successors, (39), 32 states have internal predecessors, (39), 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 4 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 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) [2022-12-14 05:02:46,786 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 05:02:46,786 INFO L93 Difference]: Finished difference Result 96 states and 124 transitions. [2022-12-14 05:02:46,787 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-14 05:02:46,788 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 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 19 [2022-12-14 05:02:46,788 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 05:02:46,794 INFO L225 Difference]: With dead ends: 96 [2022-12-14 05:02:46,794 INFO L226 Difference]: Without dead ends: 51 [2022-12-14 05:02:46,796 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-14 05:02:46,798 INFO L413 NwaCegarLoop]: 45 mSDtfsCounter, 0 mSDsluCounter, 85 mSDsCounter, 0 mSdLazyCounter, 43 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 130 SdHoareTripleChecker+Invalid, 43 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 43 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 05:02:46,799 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 130 Invalid, 43 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 43 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 05:02:46,811 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51 states. [2022-12-14 05:02:46,824 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51 to 51. [2022-12-14 05:02:46,825 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 51 states, 31 states have (on average 1.1935483870967742) internal successors, (37), 33 states have internal predecessors, (37), 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) [2022-12-14 05:02:46,827 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 51 states and 62 transitions. [2022-12-14 05:02:46,828 INFO L78 Accepts]: Start accepts. Automaton has 51 states and 62 transitions. Word has length 19 [2022-12-14 05:02:46,828 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 05:02:46,828 INFO L495 AbstractCegarLoop]: Abstraction has 51 states and 62 transitions. [2022-12-14 05:02:46,828 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 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) [2022-12-14 05:02:46,828 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 62 transitions. [2022-12-14 05:02:46,829 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2022-12-14 05:02:46,829 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 05:02:46,829 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 05:02:46,829 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-14 05:02:46,830 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting mutex_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [mutex_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, mutex_lockErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 05:02:46,830 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 05:02:46,830 INFO L85 PathProgramCache]: Analyzing trace with hash -1125308492, now seen corresponding path program 1 times [2022-12-14 05:02:46,830 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 05:02:46,830 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1352911124] [2022-12-14 05:02:46,830 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 05:02:46,831 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 05:02:46,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 05:02:47,104 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-12-14 05:02:47,104 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 05:02:47,104 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1352911124] [2022-12-14 05:02:47,104 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1352911124] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 05:02:47,104 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 05:02:47,105 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-14 05:02:47,105 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [640999328] [2022-12-14 05:02:47,105 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 05:02:47,106 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-14 05:02:47,106 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 05:02:47,106 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-14 05:02:47,106 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-14 05:02:47,106 INFO L87 Difference]: Start difference. First operand 51 states and 62 transitions. Second operand has 5 states, 5 states have (on average 2.4) internal successors, (12), 5 states have internal predecessors, (12), 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) [2022-12-14 05:02:47,391 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 05:02:47,391 INFO L93 Difference]: Finished difference Result 145 states and 192 transitions. [2022-12-14 05:02:47,392 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-12-14 05:02:47,392 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 2.4) internal successors, (12), 5 states have internal predecessors, (12), 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 20 [2022-12-14 05:02:47,392 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 05:02:47,394 INFO L225 Difference]: With dead ends: 145 [2022-12-14 05:02:47,394 INFO L226 Difference]: Without dead ends: 100 [2022-12-14 05:02:47,395 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2022-12-14 05:02:47,396 INFO L413 NwaCegarLoop]: 54 mSDtfsCounter, 59 mSDsluCounter, 98 mSDsCounter, 0 mSdLazyCounter, 148 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 63 SdHoareTripleChecker+Valid, 152 SdHoareTripleChecker+Invalid, 150 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 148 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-12-14 05:02:47,396 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [63 Valid, 152 Invalid, 150 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 148 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-12-14 05:02:47,397 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 100 states. [2022-12-14 05:02:47,412 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 100 to 82. [2022-12-14 05:02:47,413 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 82 states, 50 states have (on average 1.24) internal successors, (62), 54 states have internal predecessors, (62), 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) [2022-12-14 05:02:47,414 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 82 states to 82 states and 106 transitions. [2022-12-14 05:02:47,415 INFO L78 Accepts]: Start accepts. Automaton has 82 states and 106 transitions. Word has length 20 [2022-12-14 05:02:47,415 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 05:02:47,415 INFO L495 AbstractCegarLoop]: Abstraction has 82 states and 106 transitions. [2022-12-14 05:02:47,415 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 2.4) internal successors, (12), 5 states have internal predecessors, (12), 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) [2022-12-14 05:02:47,415 INFO L276 IsEmpty]: Start isEmpty. Operand 82 states and 106 transitions. [2022-12-14 05:02:47,417 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2022-12-14 05:02:47,417 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 05:02:47,417 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-12-14 05:02:47,417 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-14 05:02:47,417 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting mutex_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [mutex_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, mutex_lockErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 05:02:47,418 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 05:02:47,418 INFO L85 PathProgramCache]: Analyzing trace with hash 14008161, now seen corresponding path program 1 times [2022-12-14 05:02:47,418 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 05:02:47,418 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [678832390] [2022-12-14 05:02:47,419 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 05:02:47,419 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 05:02:47,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 05:02:51,329 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 11 proven. 7 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-12-14 05:02:51,329 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 05:02:51,330 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [678832390] [2022-12-14 05:02:51,330 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [678832390] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 05:02:51,330 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [484759060] [2022-12-14 05:02:51,330 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 05:02:51,330 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 05:02:51,330 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23e0328d-eac7-4923-b485-1089d491d210/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 05:02:51,331 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23e0328d-eac7-4923-b485-1089d491d210/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 05:02:51,333 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23e0328d-eac7-4923-b485-1089d491d210/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-12-14 05:02:51,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 05:02:51,459 INFO L263 TraceCheckSpWp]: Trace formula consists of 456 conjuncts, 186 conjunts are in the unsatisfiable core [2022-12-14 05:02:51,470 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 05:02:51,568 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 6 treesize of output 5 [2022-12-14 05:02:51,887 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-12-14 05:02:51,888 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 [2022-12-14 05:02:52,030 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 [2022-12-14 05:02:52,042 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 [2022-12-14 05:02:53,124 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 05:02:53,131 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:02:53,713 INFO L321 Elim1Store]: treesize reduction 258, result has 31.0 percent of original size [2022-12-14 05:02:53,714 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 4 stores, 1 select indices, 1 select index equivalence classes, 5 disjoint index pairs (out of 0 index pairs), introduced 6 new quantified variables, introduced 7 case distinctions, treesize of input 328 treesize of output 450 [2022-12-14 05:02:53,960 INFO L321 Elim1Store]: treesize reduction 160, result has 15.3 percent of original size [2022-12-14 05:02:53,960 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 3 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 14 case distinctions, treesize of input 852 treesize of output 875 [2022-12-14 05:02:54,006 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:02:54,904 INFO L321 Elim1Store]: treesize reduction 242, result has 45.6 percent of original size [2022-12-14 05:02:54,904 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 6 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 7 new quantified variables, introduced 10 case distinctions, treesize of input 512 treesize of output 1909 [2022-12-14 05:02:54,982 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:02:55,023 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:02:55,040 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:02:57,115 INFO L321 Elim1Store]: treesize reduction 342, result has 25.0 percent of original size [2022-12-14 05:02:57,116 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 10 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 9 new quantified variables, introduced 24 case distinctions, treesize of input 19047 treesize of output 16373 [2022-12-14 05:02:58,335 INFO L321 Elim1Store]: treesize reduction 8, result has 75.8 percent of original size [2022-12-14 05:02:58,335 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 28 treesize of output 34 [2022-12-14 05:02:58,661 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 17 treesize of output 15 [2022-12-14 05:02:58,950 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 17 treesize of output 15 [2022-12-14 05:02:59,194 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 0 case distinctions, treesize of input 14 treesize of output 11 [2022-12-14 05:02:59,474 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 [2022-12-14 05:03:06,329 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:03:06,331 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:03:06,334 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 05:03:06,412 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 05:03:06,457 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:03:06,460 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:03:06,467 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:03:06,470 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:03:06,478 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 05:03:06,485 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:03:06,488 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:03:06,494 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:03:06,497 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:03:06,510 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 05:03:06,551 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 05:03:06,573 INFO L217 Elim1Store]: Index analysis took 212 ms [2022-12-14 05:03:06,581 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 8 stores, 2 select indices, 2 select index equivalence classes, 7 disjoint index pairs (out of 1 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 2334 treesize of output 9885 [2022-12-14 05:03:10,191 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 05:03:10,196 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:03:10,220 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 05:03:10,230 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:03:10,234 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:03:10,245 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:03:10,249 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:03:10,277 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 05:03:10,278 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 05:03:10,298 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 05:03:10,312 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 05:03:10,326 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 05:03:10,334 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 05:03:10,334 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 05:03:10,335 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 05:03:10,340 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:03:10,344 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:03:10,353 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 05:03:10,360 INFO L217 Elim1Store]: Index analysis took 143 ms [2022-12-14 05:03:10,364 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 5 stores, 1 select indices, 1 select index equivalence classes, 5 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 1511 treesize of output 5870 [2022-12-14 05:03:11,997 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:03:11,998 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 05:03:12,136 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:03:12,139 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:03:12,147 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:03:12,150 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:03:12,199 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 05:03:12,214 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 05:03:12,217 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:03:12,220 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:03:12,221 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 05:03:12,223 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:03:12,226 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:03:12,277 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 05:03:12,307 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 05:03:12,322 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 05:03:12,322 INFO L217 Elim1Store]: Index analysis took 299 ms [2022-12-14 05:03:12,326 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 8 stores, 2 select indices, 2 select index equivalence classes, 7 disjoint index pairs (out of 1 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 2094 treesize of output 9745 [2022-12-14 05:03:12,430 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 170 treesize of output 168 [2022-12-14 05:03:12,505 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 168 treesize of output 166 [2022-12-14 05:03:12,594 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 166 treesize of output 164 [2022-12-14 05:03:13,084 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:03:13,089 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:03:13,095 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 05:03:13,178 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:03:13,187 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:03:13,235 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:03:13,240 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:03:13,258 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:03:13,263 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:03:13,264 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 05:03:13,269 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:03:13,277 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:03:13,299 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 05:03:13,304 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:03:13,381 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:03:13,472 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:03:13,527 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 05:03:13,527 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 05:03:13,628 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 05:03:13,635 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:03:13,642 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:03:13,642 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 05:03:13,650 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:03:13,656 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:03:13,676 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 05:03:13,838 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 05:03:13,840 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 05:03:13,842 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 05:03:13,912 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 05:03:13,917 INFO L217 Elim1Store]: Index analysis took 770 ms [2022-12-14 05:03:13,934 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 12 stores, 2 select indices, 2 select index equivalence classes, 9 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 13714 treesize of output 259137 [2022-12-14 05:04:28,890 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 05:04:28,919 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 05:04:28,923 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 05:04:28,924 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 05:04:28,958 INFO L321 Elim1Store]: treesize reduction 111, result has 0.9 percent of original size [2022-12-14 05:04:28,959 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 3 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 7 case distinctions, treesize of input 5123 treesize of output 4196 [2022-12-14 05:04:30,758 INFO L321 Elim1Store]: treesize reduction 237, result has 0.4 percent of original size [2022-12-14 05:04:30,759 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 3 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 13 case distinctions, treesize of input 12058 treesize of output 8709 [2022-12-14 05:04:35,407 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:04:35,458 INFO L321 Elim1Store]: treesize reduction 177, result has 0.6 percent of original size [2022-12-14 05:04:35,458 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 3 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 7 case distinctions, treesize of input 7704 treesize of output 5785 [2022-12-14 05:04:35,800 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:04:35,800 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 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 23 treesize of output 17 [2022-12-14 05:04:35,933 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 13 treesize of output 11 [2022-12-14 05:04:35,983 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:04:35,998 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:04:36,250 INFO L321 Elim1Store]: treesize reduction 479, result has 1.0 percent of original size [2022-12-14 05:04:36,251 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 4 stores, 4 select indices, 4 select index equivalence classes, 2 disjoint index pairs (out of 6 index pairs), introduced 5 new quantified variables, introduced 17 case distinctions, treesize of input 3615 treesize of output 3873 [2022-12-14 05:04:36,699 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 13 treesize of output 11 [2022-12-14 05:04:36,979 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 05:04:37,013 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 05:04:37,040 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 05:04:37,054 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 05:04:37,089 INFO L321 Elim1Store]: treesize reduction 111, result has 0.9 percent of original size [2022-12-14 05:04:37,090 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 3 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 7 case distinctions, treesize of input 5123 treesize of output 4196 [2022-12-14 05:04:41,923 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 05:04:42,324 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 05:04:42,348 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 05:04:42,361 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 05:04:42,377 INFO L321 Elim1Store]: treesize reduction 111, result has 0.9 percent of original size [2022-12-14 05:04:42,378 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 3 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 7 case distinctions, treesize of input 10474 treesize of output 7623 [2022-12-14 05:04:42,777 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 4634 treesize of output 4292 [2022-12-14 05:04:42,971 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:04:43,114 INFO L321 Elim1Store]: treesize reduction 177, result has 0.6 percent of original size [2022-12-14 05:04:43,114 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 3 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 7 case distinctions, treesize of input 7704 treesize of output 5785 [2022-12-14 05:04:43,691 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 17 [2022-12-14 05:04:43,892 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 13 treesize of output 11 [2022-12-14 05:04:44,498 INFO L217 Elim1Store]: Index analysis took 150 ms [2022-12-14 05:04:44,518 INFO L321 Elim1Store]: treesize reduction 237, result has 0.4 percent of original size [2022-12-14 05:04:44,519 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 3 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 13 case distinctions, treesize of input 12430 treesize of output 9045 [2022-12-14 05:04:45,279 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 4634 treesize of output 4292 [2022-12-14 05:04:45,308 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 05:04:45,339 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 05:04:45,350 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 05:04:45,355 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 05:04:45,369 INFO L321 Elim1Store]: treesize reduction 111, result has 0.9 percent of original size [2022-12-14 05:04:45,370 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 3 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 7 case distinctions, treesize of input 5036 treesize of output 4151 [2022-12-14 05:04:45,863 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-12-14 05:04:45,864 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 23 treesize of output 27 [2022-12-14 05:04:48,008 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 13 treesize of output 11 [2022-12-14 05:04:48,214 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-12-14 05:04:48,296 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 13 treesize of output 11 [2022-12-14 05:04:48,602 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-12-14 05:04:49,027 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 15 [2022-12-14 05:04:49,487 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 20 treesize of output 17 [2022-12-14 05:04:50,131 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 20 treesize of output 17 [2022-12-14 05:04:51,267 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 8764 treesize of output 8753 [2022-12-14 05:04:53,456 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 05:04:53,458 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:04:53,472 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 05:04:53,473 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 521 treesize of output 216 [2022-12-14 05:04:53,481 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 9 treesize of output 7 [2022-12-14 05:04:53,663 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 05:04:53,664 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 513 treesize of output 208 [2022-12-14 05:04:53,671 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 9 treesize of output 7 [2022-12-14 05:04:53,806 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 05:04:53,808 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 514 treesize of output 209 [2022-12-14 05:04:53,982 INFO L321 Elim1Store]: treesize reduction 55, result has 1.8 percent of original size [2022-12-14 05:04:53,983 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 1274 treesize of output 668 [2022-12-14 05:04:54,080 INFO L321 Elim1Store]: treesize reduction 75, result has 1.3 percent of original size [2022-12-14 05:04:54,080 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 4 case distinctions, treesize of input 1401 treesize of output 731 [2022-12-14 05:04:54,222 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 9 treesize of output 7 [2022-12-14 05:04:54,299 INFO L321 Elim1Store]: treesize reduction 55, result has 1.8 percent of original size [2022-12-14 05:04:54,300 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 1272 treesize of output 666 [2022-12-14 05:04:54,903 INFO L321 Elim1Store]: treesize reduction 68, result has 10.5 percent of original size [2022-12-14 05:04:54,903 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 5 new quantified variables, introduced 4 case distinctions, treesize of input 2715 treesize of output 1220 [2022-12-14 05:04:54,913 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 1186 treesize of output 1074 [2022-12-14 05:04:55,371 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 11 treesize of output 7 [2022-12-14 05:04:55,868 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 9 treesize of output 7 [2022-12-14 05:04:58,400 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:04:58,720 INFO L321 Elim1Store]: treesize reduction 285, result has 17.2 percent of original size [2022-12-14 05:04:58,720 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 3 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 6 new quantified variables, introduced 7 case distinctions, treesize of input 21808 treesize of output 22073 [2022-12-14 05:05:07,845 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 5 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 21318 treesize of output 20763 [2022-12-14 05:05:08,711 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 05:05:08,715 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 05:05:08,717 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 05:05:08,718 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 752 treesize of output 1090 [2022-12-14 05:05:08,736 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 05:05:08,741 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 05:05:08,741 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 05:05:08,744 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 1041 treesize of output 1 [2022-12-14 05:05:08,819 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 5 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 2998 treesize of output 2443 [2022-12-14 05:05:10,883 INFO L321 Elim1Store]: treesize reduction 17, result has 37.0 percent of original size [2022-12-14 05:05:10,884 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 4851 treesize of output 4849 [2022-12-14 05:08:11,456 WARN L233 SmtUtils]: Spent 2.98m on a formula simplification. DAG size of input: 473 DAG size of output: 120 (called from [L 318] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2022-12-14 05:08:11,456 INFO L321 Elim1Store]: treesize reduction 4445, result has 8.1 percent of original size [2022-12-14 05:08:11,458 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 9 stores, 6 select indices, 6 select index equivalence classes, 1 disjoint index pairs (out of 15 index pairs), introduced 15 new quantified variables, introduced 77 case distinctions, treesize of input 6413 treesize of output 20236 [2022-12-14 05:08:17,997 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 [2022-12-14 05:08:20,640 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 [2022-12-14 05:08:25,741 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