./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 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_c2450ade-bce4-4aba-946e-eedea7fe96ce/bin/utaipan-gh47qXpMRh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2450ade-bce4-4aba-946e-eedea7fe96ce/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_c2450ade-bce4-4aba-946e-eedea7fe96ce/bin/utaipan-gh47qXpMRh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2450ade-bce4-4aba-946e-eedea7fe96ce/bin/utaipan-gh47qXpMRh/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-sets/test_mutex.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2450ade-bce4-4aba-946e-eedea7fe96ce/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_c2450ade-bce4-4aba-946e-eedea7fe96ce/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 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-2329fc7 [2022-12-14 09:49:15,901 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-14 09:49:15,903 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-14 09:49:15,915 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-14 09:49:15,916 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-14 09:49:15,916 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-14 09:49:15,917 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-14 09:49:15,918 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-14 09:49:15,919 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-14 09:49:15,920 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-14 09:49:15,921 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-14 09:49:15,921 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-14 09:49:15,922 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-14 09:49:15,922 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-14 09:49:15,923 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-14 09:49:15,924 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-14 09:49:15,924 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-14 09:49:15,925 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-14 09:49:15,926 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-14 09:49:15,928 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-14 09:49:15,929 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-14 09:49:15,930 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-14 09:49:15,932 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-14 09:49:15,933 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-14 09:49:15,938 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-14 09:49:15,938 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-14 09:49:15,938 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-14 09:49:15,939 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-14 09:49:15,939 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-14 09:49:15,940 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-14 09:49:15,940 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-14 09:49:15,940 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-14 09:49:15,941 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-14 09:49:15,941 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-14 09:49:15,942 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-14 09:49:15,942 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-14 09:49:15,943 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-14 09:49:15,943 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-14 09:49:15,943 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-14 09:49:15,944 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-14 09:49:15,944 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-14 09:49:15,945 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2450ade-bce4-4aba-946e-eedea7fe96ce/bin/utaipan-gh47qXpMRh/config/svcomp-Reach-32bit-Taipan_Default.epf [2022-12-14 09:49:15,969 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-14 09:49:15,969 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-14 09:49:15,970 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-14 09:49:15,970 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-14 09:49:15,970 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-14 09:49:15,970 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-14 09:49:15,970 INFO L138 SettingsManager]: * User list type=DISABLED [2022-12-14 09:49:15,970 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-12-14 09:49:15,971 INFO L138 SettingsManager]: * Explicit value domain=true [2022-12-14 09:49:15,971 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-12-14 09:49:15,971 INFO L138 SettingsManager]: * Octagon Domain=false [2022-12-14 09:49:15,971 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-12-14 09:49:15,971 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-12-14 09:49:15,971 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-12-14 09:49:15,971 INFO L138 SettingsManager]: * Interval Domain=false [2022-12-14 09:49:15,971 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-12-14 09:49:15,972 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-12-14 09:49:15,972 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-12-14 09:49:15,972 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-14 09:49:15,972 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-14 09:49:15,972 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-14 09:49:15,972 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-14 09:49:15,972 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-14 09:49:15,973 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-14 09:49:15,973 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-14 09:49:15,973 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-14 09:49:15,973 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-14 09:49:15,973 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-14 09:49:15,973 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-14 09:49:15,973 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-14 09:49:15,973 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-14 09:49:15,973 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-14 09:49:15,973 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 09:49:15,977 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-14 09:49:15,977 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-12-14 09:49:15,977 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-14 09:49:15,977 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-14 09:49:15,977 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-12-14 09:49:15,978 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-14 09:49:15,978 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-14 09:49:15,978 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-12-14 09:49:15,978 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_c2450ade-bce4-4aba-946e-eedea7fe96ce/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2450ade-bce4-4aba-946e-eedea7fe96ce/bin/utaipan-gh47qXpMRh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> cee8df08ffad3eb9e493a0be0076215dd3a59bce6d2370397b3bb712a7fad867 [2022-12-14 09:49:16,139 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-14 09:49:16,159 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-14 09:49:16,162 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-14 09:49:16,163 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-14 09:49:16,163 INFO L275 PluginConnector]: CDTParser initialized [2022-12-14 09:49:16,164 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2450ade-bce4-4aba-946e-eedea7fe96ce/bin/utaipan-gh47qXpMRh/../../sv-benchmarks/c/ldv-sets/test_mutex.i [2022-12-14 09:49:18,723 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-14 09:49:18,919 INFO L351 CDTParser]: Found 1 translation units. [2022-12-14 09:49:18,920 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2450ade-bce4-4aba-946e-eedea7fe96ce/sv-benchmarks/c/ldv-sets/test_mutex.i [2022-12-14 09:49:18,931 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2450ade-bce4-4aba-946e-eedea7fe96ce/bin/utaipan-gh47qXpMRh/data/078f43124/0a3e821194c14bc89bc3716c6258faeb/FLAG9f41f2b54 [2022-12-14 09:49:18,942 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2450ade-bce4-4aba-946e-eedea7fe96ce/bin/utaipan-gh47qXpMRh/data/078f43124/0a3e821194c14bc89bc3716c6258faeb [2022-12-14 09:49:18,944 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-14 09:49:18,945 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-14 09:49:18,946 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-14 09:49:18,946 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-14 09:49:18,949 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-14 09:49:18,949 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 09:49:18" (1/1) ... [2022-12-14 09:49:18,950 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2c63072f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:49:18, skipping insertion in model container [2022-12-14 09:49:18,950 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 09:49:18" (1/1) ... [2022-12-14 09:49:18,956 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-14 09:49:18,988 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-14 09:49:19,242 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_c2450ade-bce4-4aba-946e-eedea7fe96ce/sv-benchmarks/c/ldv-sets/test_mutex.i[25842,25855] [2022-12-14 09:49:19,248 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_c2450ade-bce4-4aba-946e-eedea7fe96ce/sv-benchmarks/c/ldv-sets/test_mutex.i[25967,25980] [2022-12-14 09:49:19,250 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_c2450ade-bce4-4aba-946e-eedea7fe96ce/sv-benchmarks/c/ldv-sets/test_mutex.i[26082,26095] [2022-12-14 09:49:19,253 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 09:49:19,262 INFO L203 MainTranslator]: Completed pre-run [2022-12-14 09:49:19,305 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_c2450ade-bce4-4aba-946e-eedea7fe96ce/sv-benchmarks/c/ldv-sets/test_mutex.i[25842,25855] [2022-12-14 09:49:19,306 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_c2450ade-bce4-4aba-946e-eedea7fe96ce/sv-benchmarks/c/ldv-sets/test_mutex.i[25967,25980] [2022-12-14 09:49:19,307 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_c2450ade-bce4-4aba-946e-eedea7fe96ce/sv-benchmarks/c/ldv-sets/test_mutex.i[26082,26095] [2022-12-14 09:49:19,309 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 09:49:19,352 INFO L208 MainTranslator]: Completed translation [2022-12-14 09:49:19,352 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:49:19 WrapperNode [2022-12-14 09:49:19,352 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-14 09:49:19,353 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-14 09:49:19,353 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-14 09:49:19,353 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-14 09:49:19,358 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:49:19" (1/1) ... [2022-12-14 09:49:19,369 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:49:19" (1/1) ... [2022-12-14 09:49:19,385 INFO L138 Inliner]: procedures = 139, calls = 57, calls flagged for inlining = 14, calls inlined = 13, statements flattened = 129 [2022-12-14 09:49:19,386 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-14 09:49:19,386 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-14 09:49:19,386 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-14 09:49:19,386 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-14 09:49:19,393 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:49:19" (1/1) ... [2022-12-14 09:49:19,393 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:49:19" (1/1) ... [2022-12-14 09:49:19,396 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:49:19" (1/1) ... [2022-12-14 09:49:19,396 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:49:19" (1/1) ... [2022-12-14 09:49:19,402 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:49:19" (1/1) ... [2022-12-14 09:49:19,405 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:49:19" (1/1) ... [2022-12-14 09:49:19,406 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:49:19" (1/1) ... [2022-12-14 09:49:19,407 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:49:19" (1/1) ... [2022-12-14 09:49:19,408 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-14 09:49:19,409 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-14 09:49:19,409 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-14 09:49:19,409 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-14 09:49:19,410 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:49:19" (1/1) ... [2022-12-14 09:49:19,415 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 09:49:19,423 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2450ade-bce4-4aba-946e-eedea7fe96ce/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 09:49:19,433 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2450ade-bce4-4aba-946e-eedea7fe96ce/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-14 09:49:19,435 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2450ade-bce4-4aba-946e-eedea7fe96ce/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-14 09:49:19,461 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_list_add [2022-12-14 09:49:19,461 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_list_add [2022-12-14 09:49:19,461 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2022-12-14 09:49:19,461 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2022-12-14 09:49:19,462 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-12-14 09:49:19,462 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock [2022-12-14 09:49:19,462 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock [2022-12-14 09:49:19,462 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-14 09:49:19,462 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-12-14 09:49:19,462 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_in_set [2022-12-14 09:49:19,462 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_in_set [2022-12-14 09:49:19,462 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-12-14 09:49:19,462 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-14 09:49:19,462 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-12-14 09:49:19,462 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-14 09:49:19,462 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_successful_malloc [2022-12-14 09:49:19,462 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_successful_malloc [2022-12-14 09:49:19,463 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-14 09:49:19,463 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-14 09:49:19,560 INFO L235 CfgBuilder]: Building ICFG [2022-12-14 09:49:19,562 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-14 09:49:19,769 INFO L276 CfgBuilder]: Performing block encoding [2022-12-14 09:49:19,845 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-14 09:49:19,845 INFO L300 CfgBuilder]: Removed 2 assume(true) statements. [2022-12-14 09:49:19,847 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 09:49:19 BoogieIcfgContainer [2022-12-14 09:49:19,847 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-14 09:49:19,849 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-14 09:49:19,849 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-14 09:49:19,851 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-14 09:49:19,851 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.12 09:49:18" (1/3) ... [2022-12-14 09:49:19,852 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3b3e6492 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 09:49:19, skipping insertion in model container [2022-12-14 09:49:19,852 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:49:19" (2/3) ... [2022-12-14 09:49:19,853 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3b3e6492 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 09:49:19, skipping insertion in model container [2022-12-14 09:49:19,853 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 09:49:19" (3/3) ... [2022-12-14 09:49:19,854 INFO L112 eAbstractionObserver]: Analyzing ICFG test_mutex.i [2022-12-14 09:49:19,868 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-14 09:49:19,868 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2022-12-14 09:49:19,906 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-14 09:49:19,912 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;@73508563, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-14 09:49:19,912 INFO L358 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2022-12-14 09:49:19,915 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 09:49:19,920 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2022-12-14 09:49:19,920 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 09:49:19,921 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 09:49:19,921 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 09:49:19,925 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 09:49:19,926 INFO L85 PathProgramCache]: Analyzing trace with hash -2142385474, now seen corresponding path program 1 times [2022-12-14 09:49:19,932 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 09:49:19,933 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1454809869] [2022-12-14 09:49:19,933 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 09:49:19,933 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 09:49:20,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 09:49:20,199 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 09:49:20,199 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 09:49:20,200 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1454809869] [2022-12-14 09:49:20,200 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1454809869] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 09:49:20,200 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 09:49:20,201 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-14 09:49:20,202 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1093280207] [2022-12-14 09:49:20,203 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 09:49:20,206 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-14 09:49:20,207 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 09:49:20,228 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-14 09:49:20,228 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-14 09:49:20,230 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 09:49:20,317 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 09:49:20,317 INFO L93 Difference]: Finished difference Result 96 states and 124 transitions. [2022-12-14 09:49:20,318 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-14 09:49:20,319 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 09:49:20,319 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 09:49:20,326 INFO L225 Difference]: With dead ends: 96 [2022-12-14 09:49:20,326 INFO L226 Difference]: Without dead ends: 51 [2022-12-14 09:49:20,328 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 09:49:20,331 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 09:49:20,332 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 09:49:20,344 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51 states. [2022-12-14 09:49:20,359 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51 to 51. [2022-12-14 09:49:20,360 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 09:49:20,362 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 51 states and 62 transitions. [2022-12-14 09:49:20,363 INFO L78 Accepts]: Start accepts. Automaton has 51 states and 62 transitions. Word has length 19 [2022-12-14 09:49:20,364 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 09:49:20,364 INFO L495 AbstractCegarLoop]: Abstraction has 51 states and 62 transitions. [2022-12-14 09:49:20,364 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 09:49:20,364 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 62 transitions. [2022-12-14 09:49:20,365 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2022-12-14 09:49:20,365 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 09:49:20,365 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 09:49:20,365 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-14 09:49:20,366 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 09:49:20,366 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 09:49:20,366 INFO L85 PathProgramCache]: Analyzing trace with hash -1125308492, now seen corresponding path program 1 times [2022-12-14 09:49:20,367 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 09:49:20,367 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1184332163] [2022-12-14 09:49:20,367 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 09:49:20,367 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 09:49:20,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 09:49:20,667 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 09:49:20,667 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 09:49:20,667 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1184332163] [2022-12-14 09:49:20,667 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1184332163] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 09:49:20,667 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 09:49:20,667 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-14 09:49:20,668 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1087397458] [2022-12-14 09:49:20,668 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 09:49:20,669 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-14 09:49:20,669 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 09:49:20,670 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-14 09:49:20,670 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-14 09:49:20,670 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 09:49:20,945 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 09:49:20,945 INFO L93 Difference]: Finished difference Result 145 states and 192 transitions. [2022-12-14 09:49:20,946 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-12-14 09:49:20,946 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 09:49:20,946 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 09:49:20,948 INFO L225 Difference]: With dead ends: 145 [2022-12-14 09:49:20,948 INFO L226 Difference]: Without dead ends: 100 [2022-12-14 09:49:20,949 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 09:49:20,950 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 09:49:20,951 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 09:49:20,951 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 100 states. [2022-12-14 09:49:20,966 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 100 to 82. [2022-12-14 09:49:20,967 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 09:49:20,969 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 82 states to 82 states and 106 transitions. [2022-12-14 09:49:20,969 INFO L78 Accepts]: Start accepts. Automaton has 82 states and 106 transitions. Word has length 20 [2022-12-14 09:49:20,969 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 09:49:20,969 INFO L495 AbstractCegarLoop]: Abstraction has 82 states and 106 transitions. [2022-12-14 09:49:20,970 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 09:49:20,970 INFO L276 IsEmpty]: Start isEmpty. Operand 82 states and 106 transitions. [2022-12-14 09:49:20,971 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2022-12-14 09:49:20,971 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 09:49:20,971 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 09:49:20,971 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-14 09:49:20,971 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 09:49:20,971 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 09:49:20,971 INFO L85 PathProgramCache]: Analyzing trace with hash 14008161, now seen corresponding path program 1 times [2022-12-14 09:49:20,972 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 09:49:20,972 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1378515067] [2022-12-14 09:49:20,972 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 09:49:20,972 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 09:49:21,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 09:49:25,098 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 09:49:25,098 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 09:49:25,099 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1378515067] [2022-12-14 09:49:25,099 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1378515067] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 09:49:25,099 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [461170952] [2022-12-14 09:49:25,099 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 09:49:25,099 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 09:49:25,100 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2450ade-bce4-4aba-946e-eedea7fe96ce/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 09:49:25,101 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2450ade-bce4-4aba-946e-eedea7fe96ce/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 09:49:25,102 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2450ade-bce4-4aba-946e-eedea7fe96ce/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-12-14 09:49:25,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 09:49:25,221 INFO L263 TraceCheckSpWp]: Trace formula consists of 456 conjuncts, 186 conjunts are in the unsatisfiable core [2022-12-14 09:49:25,230 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 09:49:25,331 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 09:49:25,656 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-12-14 09:49:25,656 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 09:49:25,792 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 09:49:25,803 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 09:49:26,961 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:49:26,967 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:49:27,589 INFO L321 Elim1Store]: treesize reduction 258, result has 31.0 percent of original size [2022-12-14 09:49:27,590 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 09:49:27,859 INFO L321 Elim1Store]: treesize reduction 160, result has 15.3 percent of original size [2022-12-14 09:49:27,860 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 09:49:27,911 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:49:28,798 INFO L321 Elim1Store]: treesize reduction 242, result has 45.6 percent of original size [2022-12-14 09:49:28,799 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 09:49:28,885 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:49:28,925 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:49:28,942 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:49:31,020 INFO L321 Elim1Store]: treesize reduction 342, result has 25.0 percent of original size [2022-12-14 09:49:31,021 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 09:49:32,277 INFO L321 Elim1Store]: treesize reduction 8, result has 75.8 percent of original size [2022-12-14 09:49:32,278 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 09:49:32,661 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 09:49:32,918 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 09:49:33,138 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 09:49:33,424 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 09:49:40,192 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:49:40,196 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:49:40,198 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:49:40,277 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:49:40,326 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:49:40,328 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:49:40,335 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:49:40,338 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:49:40,346 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:49:40,351 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:49:40,354 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:49:40,360 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:49:40,362 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:49:40,374 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:49:40,415 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:49:40,437 INFO L217 Elim1Store]: Index analysis took 214 ms [2022-12-14 09:49:40,442 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 09:49:43,675 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:49:43,679 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:49:43,705 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:49:43,716 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:49:43,720 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:49:43,731 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:49:43,735 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:49:43,761 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:49:43,762 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:49:43,781 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:49:43,794 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:49:43,807 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:49:43,815 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:49:43,816 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:49:43,816 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:49:43,820 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:49:43,824 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:49:43,832 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:49:43,839 INFO L217 Elim1Store]: Index analysis took 137 ms [2022-12-14 09:49:43,843 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 09:49:45,597 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:49:45,597 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:49:45,738 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:49:45,742 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:49:45,749 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:49:45,752 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:49:45,797 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:49:45,814 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:49:45,817 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:49:45,820 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:49:45,821 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:49:45,824 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:49:45,827 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:49:45,876 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:49:45,906 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:49:45,922 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:49:45,922 INFO L217 Elim1Store]: Index analysis took 296 ms [2022-12-14 09:49:45,926 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 09:49:46,039 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 09:49:46,133 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 09:49:46,236 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 09:49:46,796 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:49:46,802 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:49:46,806 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:49:46,894 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:49:46,903 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:49:46,949 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:49:46,955 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:49:46,972 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:49:46,978 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:49:46,979 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:49:46,985 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:49:46,996 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:49:47,019 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:49:47,026 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:49:47,102 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:49:47,193 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:49:47,249 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:49:47,250 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:49:47,351 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:49:47,359 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:49:47,365 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:49:47,365 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:49:47,376 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:49:47,382 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:49:47,402 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:49:47,564 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:49:47,565 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:49:47,568 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:49:47,648 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:49:47,652 INFO L217 Elim1Store]: Index analysis took 790 ms [2022-12-14 09:49:47,670 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 09:50:56,963 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:50:56,990 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:50:56,993 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:50:56,996 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:50:57,014 INFO L321 Elim1Store]: treesize reduction 111, result has 0.9 percent of original size [2022-12-14 09:50:57,015 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 09:50:58,792 INFO L321 Elim1Store]: treesize reduction 237, result has 0.4 percent of original size [2022-12-14 09:50:58,794 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 09:51:03,385 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:51:03,434 INFO L321 Elim1Store]: treesize reduction 177, result has 0.6 percent of original size [2022-12-14 09:51:03,435 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 09:51:03,736 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:51:03,737 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 09:51:03,878 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 09:51:03,921 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:51:03,934 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:51:04,202 INFO L321 Elim1Store]: treesize reduction 479, result has 1.0 percent of original size [2022-12-14 09:51:04,203 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 09:51:04,593 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 09:51:04,845 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:51:04,876 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:51:04,896 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:51:04,907 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:51:04,951 INFO L321 Elim1Store]: treesize reduction 111, result has 0.9 percent of original size [2022-12-14 09:51:04,951 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 09:51:09,677 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:51:09,948 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:51:09,972 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:51:09,991 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:51:10,011 INFO L321 Elim1Store]: treesize reduction 111, result has 0.9 percent of original size [2022-12-14 09:51:10,012 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 09:51:10,408 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 09:51:10,575 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:51:10,715 INFO L321 Elim1Store]: treesize reduction 177, result has 0.6 percent of original size [2022-12-14 09:51:10,715 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 09:51:11,234 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 09:51:11,395 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 09:51:11,954 INFO L217 Elim1Store]: Index analysis took 153 ms [2022-12-14 09:51:11,974 INFO L321 Elim1Store]: treesize reduction 237, result has 0.4 percent of original size [2022-12-14 09:51:11,974 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 09:51:12,702 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 09:51:12,731 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:51:12,760 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:51:12,772 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:51:12,777 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:51:12,796 INFO L321 Elim1Store]: treesize reduction 111, result has 0.9 percent of original size [2022-12-14 09:51:12,797 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 09:51:13,303 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-12-14 09:51:13,303 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 09:51:15,359 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 09:51:15,524 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-12-14 09:51:15,589 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 09:51:15,850 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-12-14 09:51:16,232 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 09:51:16,689 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 09:51:17,355 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 09:51:18,295 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 09:51:20,463 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:51:20,464 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:51:20,481 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:51:20,483 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 09:51:20,490 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 09:51:20,654 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:51:20,656 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 09:51:20,663 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 09:51:20,807 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:51:20,809 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 09:51:20,986 INFO L321 Elim1Store]: treesize reduction 55, result has 1.8 percent of original size [2022-12-14 09:51:20,986 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 09:51:21,089 INFO L321 Elim1Store]: treesize reduction 75, result has 1.3 percent of original size [2022-12-14 09:51:21,089 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 09:51:21,240 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 09:51:21,312 INFO L321 Elim1Store]: treesize reduction 55, result has 1.8 percent of original size [2022-12-14 09:51:21,313 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 09:51:21,903 INFO L321 Elim1Store]: treesize reduction 68, result has 10.5 percent of original size [2022-12-14 09:51:21,904 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 09:51:21,913 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 09:51:22,504 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 09:51:23,099 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 09:51:25,672 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:51:25,976 INFO L321 Elim1Store]: treesize reduction 285, result has 17.2 percent of original size [2022-12-14 09:51:25,976 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 09:51:34,482 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 09:51:35,209 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:51:35,214 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:51:35,215 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:51:35,216 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 09:51:35,230 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:51:35,235 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:51:35,236 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:51:35,238 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 09:51:35,306 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 09:51:37,333 INFO L321 Elim1Store]: treesize reduction 17, result has 37.0 percent of original size [2022-12-14 09:51:37,334 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 09:54:26,472 WARN L233 SmtUtils]: Spent 2.79m 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 09:54:26,473 INFO L321 Elim1Store]: treesize reduction 4445, result has 8.1 percent of original size [2022-12-14 09:54:26,475 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 09:54:32,986 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 09:54:36,857 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 09:54:41,957 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