./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/list-simple/dll2c_remove_all_reverse.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version b5237d83 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43e30726-729f-4a56-8255-e56676c75911/bin/utaipan-g80aRyZoba/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43e30726-729f-4a56-8255-e56676c75911/bin/utaipan-g80aRyZoba/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43e30726-729f-4a56-8255-e56676c75911/bin/utaipan-g80aRyZoba/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43e30726-729f-4a56-8255-e56676c75911/bin/utaipan-g80aRyZoba/config/TaipanReach.xml -i ../../sv-benchmarks/c/list-simple/dll2c_remove_all_reverse.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43e30726-729f-4a56-8255-e56676c75911/bin/utaipan-g80aRyZoba/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43e30726-729f-4a56-8255-e56676c75911/bin/utaipan-g80aRyZoba --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 a81d76a671fec08918102c7898e8919d02b265d05707efa1508363dab4714d44 --- 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-b5237d8 [2022-11-22 00:34:35,641 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-22 00:34:35,643 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-22 00:34:35,681 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-22 00:34:35,682 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-22 00:34:35,686 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-22 00:34:35,692 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-22 00:34:35,695 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-22 00:34:35,698 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-22 00:34:35,703 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-22 00:34:35,704 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-22 00:34:35,706 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-22 00:34:35,707 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-22 00:34:35,709 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-22 00:34:35,710 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-22 00:34:35,713 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-22 00:34:35,714 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-22 00:34:35,715 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-22 00:34:35,717 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-22 00:34:35,721 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-22 00:34:35,730 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-22 00:34:35,732 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-22 00:34:35,734 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-22 00:34:35,734 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-22 00:34:35,742 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-22 00:34:35,745 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-22 00:34:35,745 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-22 00:34:35,746 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-22 00:34:35,748 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-22 00:34:35,749 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-22 00:34:35,750 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-22 00:34:35,751 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-22 00:34:35,753 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-22 00:34:35,753 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-22 00:34:35,754 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-22 00:34:35,754 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-22 00:34:35,756 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-22 00:34:35,756 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-22 00:34:35,757 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-22 00:34:35,757 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-22 00:34:35,758 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-22 00:34:35,759 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43e30726-729f-4a56-8255-e56676c75911/bin/utaipan-g80aRyZoba/config/svcomp-Reach-32bit-Taipan_Default.epf [2022-11-22 00:34:35,788 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-22 00:34:35,789 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-22 00:34:35,789 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-22 00:34:35,789 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-22 00:34:35,790 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-22 00:34:35,790 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-22 00:34:35,790 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-22 00:34:35,791 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-22 00:34:35,791 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-22 00:34:35,791 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-22 00:34:35,791 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-22 00:34:35,791 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-22 00:34:35,792 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-22 00:34:35,792 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-22 00:34:35,792 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-22 00:34:35,792 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-22 00:34:35,792 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-22 00:34:35,793 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-22 00:34:35,793 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-22 00:34:35,794 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-22 00:34:35,794 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-22 00:34:35,794 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-22 00:34:35,794 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-22 00:34:35,794 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-22 00:34:35,795 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-22 00:34:35,795 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-22 00:34:35,795 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-22 00:34:35,795 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-22 00:34:35,795 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-22 00:34:35,796 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-22 00:34:35,796 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-22 00:34:35,796 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-22 00:34:35,796 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-22 00:34:35,797 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-22 00:34:35,797 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-22 00:34:35,797 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-22 00:34:35,797 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-22 00:34:35,797 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-22 00:34:35,798 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-22 00:34:35,798 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-22 00:34:35,798 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-22 00:34:35,798 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_43e30726-729f-4a56-8255-e56676c75911/bin/utaipan-g80aRyZoba/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43e30726-729f-4a56-8255-e56676c75911/bin/utaipan-g80aRyZoba Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a81d76a671fec08918102c7898e8919d02b265d05707efa1508363dab4714d44 [2022-11-22 00:34:36,143 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-22 00:34:36,177 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-22 00:34:36,179 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-22 00:34:36,181 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-22 00:34:36,181 INFO L275 PluginConnector]: CDTParser initialized [2022-11-22 00:34:36,182 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43e30726-729f-4a56-8255-e56676c75911/bin/utaipan-g80aRyZoba/../../sv-benchmarks/c/list-simple/dll2c_remove_all_reverse.i [2022-11-22 00:34:39,249 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-22 00:34:39,528 INFO L351 CDTParser]: Found 1 translation units. [2022-11-22 00:34:39,528 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43e30726-729f-4a56-8255-e56676c75911/sv-benchmarks/c/list-simple/dll2c_remove_all_reverse.i [2022-11-22 00:34:39,540 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43e30726-729f-4a56-8255-e56676c75911/bin/utaipan-g80aRyZoba/data/ec0f7cdf4/2b0ab0dabac740f9bf8c955d332d480d/FLAG82193a9ee [2022-11-22 00:34:39,556 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43e30726-729f-4a56-8255-e56676c75911/bin/utaipan-g80aRyZoba/data/ec0f7cdf4/2b0ab0dabac740f9bf8c955d332d480d [2022-11-22 00:34:39,558 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-22 00:34:39,560 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-22 00:34:39,564 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-22 00:34:39,565 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-22 00:34:39,568 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-22 00:34:39,569 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 12:34:39" (1/1) ... [2022-11-22 00:34:39,571 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2e5488c1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:34:39, skipping insertion in model container [2022-11-22 00:34:39,572 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 12:34:39" (1/1) ... [2022-11-22 00:34:39,579 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-22 00:34:39,636 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-22 00:34:40,087 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_43e30726-729f-4a56-8255-e56676c75911/sv-benchmarks/c/list-simple/dll2c_remove_all_reverse.i[24177,24190] [2022-11-22 00:34:40,092 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-22 00:34:40,103 INFO L203 MainTranslator]: Completed pre-run [2022-11-22 00:34:40,149 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_43e30726-729f-4a56-8255-e56676c75911/sv-benchmarks/c/list-simple/dll2c_remove_all_reverse.i[24177,24190] [2022-11-22 00:34:40,149 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-22 00:34:40,174 INFO L208 MainTranslator]: Completed translation [2022-11-22 00:34:40,174 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:34:40 WrapperNode [2022-11-22 00:34:40,175 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-22 00:34:40,176 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-22 00:34:40,176 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-22 00:34:40,176 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-22 00:34:40,184 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:34:40" (1/1) ... [2022-11-22 00:34:40,218 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:34:40" (1/1) ... [2022-11-22 00:34:40,240 INFO L138 Inliner]: procedures = 126, calls = 37, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 105 [2022-11-22 00:34:40,240 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-22 00:34:40,241 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-22 00:34:40,241 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-22 00:34:40,241 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-22 00:34:40,251 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:34:40" (1/1) ... [2022-11-22 00:34:40,251 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:34:40" (1/1) ... [2022-11-22 00:34:40,254 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:34:40" (1/1) ... [2022-11-22 00:34:40,254 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:34:40" (1/1) ... [2022-11-22 00:34:40,262 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:34:40" (1/1) ... [2022-11-22 00:34:40,266 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:34:40" (1/1) ... [2022-11-22 00:34:40,268 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:34:40" (1/1) ... [2022-11-22 00:34:40,269 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:34:40" (1/1) ... [2022-11-22 00:34:40,272 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-22 00:34:40,272 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-22 00:34:40,273 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-22 00:34:40,273 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-22 00:34:40,274 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:34:40" (1/1) ... [2022-11-22 00:34:40,281 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-22 00:34:40,298 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43e30726-729f-4a56-8255-e56676c75911/bin/utaipan-g80aRyZoba/z3 [2022-11-22 00:34:40,310 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43e30726-729f-4a56-8255-e56676c75911/bin/utaipan-g80aRyZoba/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-22 00:34:40,336 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43e30726-729f-4a56-8255-e56676c75911/bin/utaipan-g80aRyZoba/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-22 00:34:40,356 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-22 00:34:40,357 INFO L130 BoogieDeclarations]: Found specification of procedure node_create [2022-11-22 00:34:40,357 INFO L138 BoogieDeclarations]: Found implementation of procedure node_create [2022-11-22 00:34:40,357 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-22 00:34:40,357 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-22 00:34:40,357 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-22 00:34:40,358 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-22 00:34:40,358 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-22 00:34:40,358 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-22 00:34:40,358 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-11-22 00:34:40,358 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-22 00:34:40,359 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-22 00:34:40,359 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-22 00:34:40,480 INFO L235 CfgBuilder]: Building ICFG [2022-11-22 00:34:40,497 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-22 00:34:40,813 INFO L276 CfgBuilder]: Performing block encoding [2022-11-22 00:34:40,937 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-22 00:34:40,937 INFO L300 CfgBuilder]: Removed 2 assume(true) statements. [2022-11-22 00:34:40,945 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 12:34:40 BoogieIcfgContainer [2022-11-22 00:34:40,945 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-22 00:34:40,948 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-22 00:34:40,948 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-22 00:34:40,951 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-22 00:34:40,952 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.11 12:34:39" (1/3) ... [2022-11-22 00:34:40,953 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@62fcf623 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 12:34:40, skipping insertion in model container [2022-11-22 00:34:40,954 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:34:40" (2/3) ... [2022-11-22 00:34:40,954 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@62fcf623 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 12:34:40, skipping insertion in model container [2022-11-22 00:34:40,955 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 12:34:40" (3/3) ... [2022-11-22 00:34:40,957 INFO L112 eAbstractionObserver]: Analyzing ICFG dll2c_remove_all_reverse.i [2022-11-22 00:34:40,979 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-22 00:34:40,979 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-22 00:34:41,047 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-22 00:34:41,055 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;@567d737, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-22 00:34:41,056 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-22 00:34:41,060 INFO L276 IsEmpty]: Start isEmpty. Operand has 16 states, 11 states have (on average 1.4545454545454546) internal successors, (16), 12 states have internal predecessors, (16), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-22 00:34:41,068 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-11-22 00:34:41,068 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 00:34:41,069 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 00:34:41,070 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-22 00:34:41,077 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 00:34:41,078 INFO L85 PathProgramCache]: Analyzing trace with hash -1325907828, now seen corresponding path program 1 times [2022-11-22 00:34:41,088 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 00:34:41,088 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2060326071] [2022-11-22 00:34:41,089 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 00:34:41,090 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 00:34:41,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 00:34:41,582 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 00:34:41,583 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 00:34:41,584 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2060326071] [2022-11-22 00:34:41,585 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2060326071] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 00:34:41,586 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 00:34:41,586 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-22 00:34:41,587 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2122382923] [2022-11-22 00:34:41,588 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 00:34:41,593 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-22 00:34:41,594 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 00:34:41,626 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-22 00:34:41,627 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 00:34:41,630 INFO L87 Difference]: Start difference. First operand has 16 states, 11 states have (on average 1.4545454545454546) internal successors, (16), 12 states have internal predecessors, (16), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Second operand has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-22 00:34:41,705 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 00:34:41,705 INFO L93 Difference]: Finished difference Result 25 states and 32 transitions. [2022-11-22 00:34:41,706 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-22 00:34:41,707 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 10 [2022-11-22 00:34:41,708 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 00:34:41,715 INFO L225 Difference]: With dead ends: 25 [2022-11-22 00:34:41,715 INFO L226 Difference]: Without dead ends: 16 [2022-11-22 00:34:41,720 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 00:34:41,726 INFO L413 NwaCegarLoop]: 12 mSDtfsCounter, 1 mSDsluCounter, 9 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 21 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-22 00:34:41,727 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 21 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-22 00:34:41,744 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states. [2022-11-22 00:34:41,761 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 14. [2022-11-22 00:34:41,762 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14 states, 10 states have (on average 1.2) internal successors, (12), 10 states have internal predecessors, (12), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-22 00:34:41,763 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 16 transitions. [2022-11-22 00:34:41,765 INFO L78 Accepts]: Start accepts. Automaton has 14 states and 16 transitions. Word has length 10 [2022-11-22 00:34:41,765 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 00:34:41,766 INFO L495 AbstractCegarLoop]: Abstraction has 14 states and 16 transitions. [2022-11-22 00:34:41,766 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-22 00:34:41,767 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 16 transitions. [2022-11-22 00:34:41,768 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2022-11-22 00:34:41,768 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 00:34:41,769 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 00:34:41,769 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-22 00:34:41,769 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-22 00:34:41,770 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 00:34:41,770 INFO L85 PathProgramCache]: Analyzing trace with hash 1696736134, now seen corresponding path program 1 times [2022-11-22 00:34:41,771 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 00:34:41,772 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1195764708] [2022-11-22 00:34:41,772 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 00:34:41,772 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 00:34:41,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 00:34:41,952 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-11-22 00:34:41,953 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 00:34:41,953 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1195764708] [2022-11-22 00:34:41,954 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1195764708] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 00:34:41,954 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 00:34:41,954 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-22 00:34:41,955 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [187845647] [2022-11-22 00:34:41,955 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 00:34:41,956 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-22 00:34:41,956 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 00:34:41,957 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-22 00:34:41,957 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-11-22 00:34:41,957 INFO L87 Difference]: Start difference. First operand 14 states and 16 transitions. Second operand has 4 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-11-22 00:34:42,014 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 00:34:42,015 INFO L93 Difference]: Finished difference Result 18 states and 20 transitions. [2022-11-22 00:34:42,015 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-22 00:34:42,016 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 16 [2022-11-22 00:34:42,016 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 00:34:42,017 INFO L225 Difference]: With dead ends: 18 [2022-11-22 00:34:42,017 INFO L226 Difference]: Without dead ends: 15 [2022-11-22 00:34:42,017 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-11-22 00:34:42,019 INFO L413 NwaCegarLoop]: 9 mSDtfsCounter, 6 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 16 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-22 00:34:42,020 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 16 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-22 00:34:42,020 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states. [2022-11-22 00:34:42,023 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 15. [2022-11-22 00:34:42,024 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15 states, 11 states have (on average 1.1818181818181819) internal successors, (13), 11 states have internal predecessors, (13), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-22 00:34:42,025 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 17 transitions. [2022-11-22 00:34:42,025 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 17 transitions. Word has length 16 [2022-11-22 00:34:42,025 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 00:34:42,025 INFO L495 AbstractCegarLoop]: Abstraction has 15 states and 17 transitions. [2022-11-22 00:34:42,026 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-11-22 00:34:42,026 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 17 transitions. [2022-11-22 00:34:42,027 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2022-11-22 00:34:42,027 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 00:34:42,027 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 00:34:42,027 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-22 00:34:42,028 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-22 00:34:42,028 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 00:34:42,029 INFO L85 PathProgramCache]: Analyzing trace with hash 1059394163, now seen corresponding path program 1 times [2022-11-22 00:34:42,029 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 00:34:42,029 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [877044226] [2022-11-22 00:34:42,029 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 00:34:42,030 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 00:34:42,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 00:34:42,226 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-11-22 00:34:42,226 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 00:34:42,227 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [877044226] [2022-11-22 00:34:42,227 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [877044226] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-22 00:34:42,227 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1051340641] [2022-11-22 00:34:42,228 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 00:34:42,228 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 00:34:42,228 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43e30726-729f-4a56-8255-e56676c75911/bin/utaipan-g80aRyZoba/z3 [2022-11-22 00:34:42,231 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43e30726-729f-4a56-8255-e56676c75911/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-22 00:34:42,236 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43e30726-729f-4a56-8255-e56676c75911/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-22 00:34:42,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 00:34:42,489 INFO L263 TraceCheckSpWp]: Trace formula consists of 327 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-22 00:34:42,494 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 00:34:42,599 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-11-22 00:34:42,600 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-22 00:34:42,666 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-11-22 00:34:42,667 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1051340641] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-22 00:34:42,670 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1851986466] [2022-11-22 00:34:42,701 INFO L159 IcfgInterpreter]: Started Sifa with 13 locations of interest [2022-11-22 00:34:42,702 INFO L166 IcfgInterpreter]: Building call graph [2022-11-22 00:34:42,705 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-22 00:34:42,711 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-22 00:34:42,712 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-22 00:34:42,812 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:34:42,841 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-11-22 00:34:42,842 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 5 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 2 case distinctions, treesize of input 27 treesize of output 37 [2022-11-22 00:34:42,857 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:34:42,859 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 22 [2022-11-22 00:34:42,911 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 12 treesize of output 9 [2022-11-22 00:34:42,916 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 6 treesize of output 5 [2022-11-22 00:34:42,943 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:34:42,944 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:34:42,946 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 26 [2022-11-22 00:34:42,955 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:34:42,957 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:34:42,958 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 17 [2022-11-22 00:34:42,968 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:34:42,969 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:34:42,970 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 17 [2022-11-22 00:34:43,013 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:34:43,015 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 13 [2022-11-22 00:34:43,028 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:34:43,029 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 10 [2022-11-22 00:34:43,091 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:34:43,093 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 13 [2022-11-22 00:34:43,104 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:34:43,105 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 10 [2022-11-22 00:34:43,646 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 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 5 treesize of output 3 [2022-11-22 00:34:43,658 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2022-11-22 00:34:43,672 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2022-11-22 00:34:43,696 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 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 5 treesize of output 3 [2022-11-22 00:34:43,711 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 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 7 treesize of output 3 [2022-11-22 00:34:43,726 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-22 00:34:43,728 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-22 00:34:43,730 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-22 00:34:44,026 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 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 5 treesize of output 3 [2022-11-22 00:34:44,038 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:34:44,039 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 7 [2022-11-22 00:34:44,052 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 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 5 treesize of output 3 [2022-11-22 00:34:44,064 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:34:44,065 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 7 [2022-11-22 00:34:44,078 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 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 9 treesize of output 3 [2022-11-22 00:34:44,094 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-22 00:34:44,096 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-22 00:34:44,098 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-22 00:34:44,101 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-22 00:34:44,172 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:34:44,175 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:34:44,176 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 00:34:44,188 INFO L321 Elim1Store]: treesize reduction 17, result has 29.2 percent of original size [2022-11-22 00:34:44,190 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 1 case distinctions, treesize of input 44 treesize of output 30 [2022-11-22 00:34:44,207 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:34:44,210 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:34:44,211 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 00:34:44,227 INFO L321 Elim1Store]: treesize reduction 13, result has 45.8 percent of original size [2022-11-22 00:34:44,227 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 1 case distinctions, treesize of input 44 treesize of output 34 [2022-11-22 00:34:44,250 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:34:44,253 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:34:44,255 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:34:44,256 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 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 43 treesize of output 18 [2022-11-22 00:34:44,429 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:34:44,430 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 00:34:44,432 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:34:44,434 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 00:34:44,458 INFO L321 Elim1Store]: treesize reduction 17, result has 29.2 percent of original size [2022-11-22 00:34:44,458 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 4 new quantified variables, introduced 1 case distinctions, treesize of input 135 treesize of output 143 [2022-11-22 00:34:44,479 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:34:44,483 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:34:44,484 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 00:34:44,511 INFO L321 Elim1Store]: treesize reduction 13, result has 45.8 percent of original size [2022-11-22 00:34:44,512 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 4 new quantified variables, introduced 1 case distinctions, treesize of input 121 treesize of output 133 [2022-11-22 00:34:44,541 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:34:44,544 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 23 treesize of output 11 [2022-11-22 00:34:44,577 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:34:44,582 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 47 treesize of output 11 [2022-11-22 00:34:44,642 INFO L321 Elim1Store]: treesize reduction 19, result has 5.0 percent of original size [2022-11-22 00:34:44,642 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 2 case distinctions, treesize of input 105 treesize of output 70 [2022-11-22 00:34:44,653 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:34:44,655 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 70 treesize of output 56 [2022-11-22 00:34:44,761 INFO L321 Elim1Store]: treesize reduction 13, result has 7.1 percent of original size [2022-11-22 00:34:44,761 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 106 treesize of output 87 [2022-11-22 00:34:44,778 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:34:44,783 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 73 treesize of output 61 [2022-11-22 00:34:44,851 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:34:44,852 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 29 treesize of output 17 [2022-11-22 00:34:44,870 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:34:44,871 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 35 treesize of output 7 [2022-11-22 00:34:44,882 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 00:34:44,885 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:34:44,891 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 29 treesize of output 17 [2022-11-22 00:34:44,947 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:34:44,966 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 00:34:44,968 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:34:44,970 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:34:44,972 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 00:34:46,125 INFO L321 Elim1Store]: treesize reduction 328, result has 17.6 percent of original size [2022-11-22 00:34:46,126 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 6 select indices, 6 select index equivalence classes, 1 disjoint index pairs (out of 15 index pairs), introduced 8 new quantified variables, introduced 23 case distinctions, treesize of input 387 treesize of output 363 [2022-11-22 00:34:46,185 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:34:46,187 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 00:34:47,816 INFO L321 Elim1Store]: treesize reduction 671, result has 14.8 percent of original size [2022-11-22 00:34:47,817 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 3 stores, 6 select indices, 6 select index equivalence classes, 1 disjoint index pairs (out of 15 index pairs), introduced 9 new quantified variables, introduced 31 case distinctions, treesize of input 335 treesize of output 399 [2022-11-22 00:34:47,905 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 188 treesize of output 200 [2022-11-22 00:34:47,953 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 152 treesize of output 170 [2022-11-22 00:34:48,109 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 00:34:48,111 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 19 treesize of output 3 [2022-11-22 00:34:48,158 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 23 treesize of output 13 [2022-11-22 00:34:48,600 INFO L321 Elim1Store]: treesize reduction 150, result has 29.6 percent of original size [2022-11-22 00:34:48,600 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 3 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 132 treesize of output 261 [2022-11-22 00:34:48,651 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 12 treesize of output 11 [2022-11-22 00:34:48,693 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 00:34:48,694 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 12 treesize of output 1 [2022-11-22 00:34:48,799 INFO L321 Elim1Store]: treesize reduction 15, result has 37.5 percent of original size [2022-11-22 00:34:48,799 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 2 new quantified variables, introduced 1 case distinctions, treesize of input 39 treesize of output 48 [2022-11-22 00:34:48,834 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:34:48,836 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 19 [2022-11-22 00:34:48,899 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 00:34:48,900 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 12 treesize of output 1 [2022-11-22 00:34:48,926 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 25 treesize of output 19 [2022-11-22 00:34:49,300 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 00:34:49,301 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 00:34:49,306 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 00:34:49,306 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 00:34:49,308 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 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 149 treesize of output 133 [2022-11-22 00:34:49,328 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 22 treesize of output 7 [2022-11-22 00:34:49,354 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:34:49,904 INFO L321 Elim1Store]: treesize reduction 128, result has 28.5 percent of original size [2022-11-22 00:34:49,904 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 4 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 6 new quantified variables, introduced 18 case distinctions, treesize of input 634 treesize of output 996 [2022-11-22 00:34:50,535 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:34:50,544 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:34:51,549 INFO L321 Elim1Store]: treesize reduction 179, result has 38.1 percent of original size [2022-11-22 00:34:51,550 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 5 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 7 new quantified variables, introduced 11 case distinctions, treesize of input 2650 treesize of output 3716 [2022-11-22 00:34:52,294 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 00:34:52,328 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 00:34:52,378 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 00:34:52,395 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 00:34:52,412 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 00:34:52,413 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 00:34:52,421 INFO L217 Elim1Store]: Index analysis took 174 ms [2022-11-22 00:34:52,441 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 4 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 1110 treesize of output 2910 [2022-11-22 00:35:02,596 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 00:35:02,605 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 00:35:02,606 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 00:35:02,664 INFO L321 Elim1Store]: treesize reduction 39, result has 39.1 percent of original size [2022-11-22 00:35:02,664 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 3 new quantified variables, introduced 10 case distinctions, treesize of input 53 treesize of output 51 [2022-11-22 00:35:02,690 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-22 00:35:02,716 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-22 00:35:02,738 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:35:02,740 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 11 treesize of output 7 [2022-11-22 00:35:02,763 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:35:02,766 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 00:35:02,796 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-22 00:35:02,797 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 75 treesize of output 77 [2022-11-22 00:35:07,897 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 00:35:07,904 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:35:07,946 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 00:35:08,136 INFO L321 Elim1Store]: treesize reduction 126, result has 34.0 percent of original size [2022-11-22 00:35:08,136 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 5 select indices, 5 select index equivalence classes, 1 disjoint index pairs (out of 10 index pairs), introduced 4 new quantified variables, introduced 18 case distinctions, treesize of input 129 treesize of output 176 [2022-11-22 00:35:08,183 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 3 [2022-11-22 00:35:08,233 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:35:08,234 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 22 treesize of output 12 [2022-11-22 00:35:08,279 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-22 00:35:08,340 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:35:08,342 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:35:08,344 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:35:08,346 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 26 treesize of output 14 [2022-11-22 00:35:08,391 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-22 00:35:08,432 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:35:08,434 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:35:08,436 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:35:08,437 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 37 treesize of output 25 [2022-11-22 00:35:08,473 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-22 00:35:08,508 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-22 00:35:08,626 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:35:08,629 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 00:35:08,631 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:35:08,634 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 00:35:08,647 INFO L321 Elim1Store]: treesize reduction 22, result has 4.3 percent of original size [2022-11-22 00:35:08,648 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 1 disjoint index pairs (out of 10 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 150 treesize of output 108 [2022-11-22 00:35:08,701 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:35:08,703 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:35:08,704 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 00:35:08,705 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:35:08,708 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 00:35:08,720 INFO L321 Elim1Store]: treesize reduction 13, result has 7.1 percent of original size [2022-11-22 00:35:08,721 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 2 disjoint index pairs (out of 10 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 150 treesize of output 108 [2022-11-22 00:35:08,810 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:35:08,825 INFO L321 Elim1Store]: treesize reduction 18, result has 5.3 percent of original size [2022-11-22 00:35:08,826 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 54 treesize of output 42 [2022-11-22 00:35:08,862 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:35:08,865 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 00:35:08,867 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:35:08,870 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 00:35:08,883 INFO L321 Elim1Store]: treesize reduction 22, result has 4.3 percent of original size [2022-11-22 00:35:08,883 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 1 disjoint index pairs (out of 10 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 110 treesize of output 76 [2022-11-22 00:35:08,937 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:35:08,942 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 00:35:08,960 INFO L321 Elim1Store]: treesize reduction 22, result has 4.3 percent of original size [2022-11-22 00:35:08,961 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 70 treesize of output 50 [2022-11-22 00:35:09,006 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-22 00:35:09,172 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-22 00:35:09,220 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-22 00:35:12,516 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 00:35:12,530 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 00:35:12,534 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 00:35:12,535 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 00:35:12,627 INFO L321 Elim1Store]: treesize reduction 78, result has 32.2 percent of original size [2022-11-22 00:35:12,628 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 3 new quantified variables, introduced 18 case distinctions, treesize of input 129 treesize of output 148 [2022-11-22 00:35:12,655 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-22 00:35:12,697 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:35:12,701 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 15 treesize of output 11 [2022-11-22 00:35:12,736 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:35:12,737 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 00:35:12,739 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:35:12,742 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 00:35:12,763 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-22 00:35:12,763 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 1 disjoint index pairs (out of 10 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 80 treesize of output 80 [2022-11-22 00:35:12,805 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:35:12,808 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:35:12,811 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 00:35:12,812 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 2 new quantified variables, introduced 0 case distinctions, treesize of input 60 treesize of output 42 [2022-11-22 00:35:12,838 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:35:12,839 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 00:35:12,841 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:35:12,842 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:35:12,844 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:35:12,845 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 00:35:12,846 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 3 disjoint index pairs (out of 10 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 74 treesize of output 52 [2022-11-22 00:35:12,874 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:35:12,874 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 00:35:12,877 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:35:12,883 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 00:35:12,892 INFO L321 Elim1Store]: treesize reduction 22, result has 4.3 percent of original size [2022-11-22 00:35:12,893 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 1 disjoint index pairs (out of 10 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 74 treesize of output 52 [2022-11-22 00:35:12,918 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-22 00:35:12,952 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:35:12,955 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:35:12,958 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 00:35:12,985 INFO L321 Elim1Store]: treesize reduction 9, result has 60.9 percent of original size [2022-11-22 00:35:12,986 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 70 treesize of output 64 [2022-11-22 00:35:13,018 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:35:13,023 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 00:35:13,025 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:35:13,029 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 00:35:13,039 INFO L321 Elim1Store]: treesize reduction 22, result has 4.3 percent of original size [2022-11-22 00:35:13,040 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 1 disjoint index pairs (out of 10 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 79 treesize of output 57 [2022-11-22 00:35:52,194 WARN L176 XnfTransformerHelper]: Simplifying disjunction of 61920 conjuctions. This might take some time... [2022-11-22 00:44:18,531 INFO L192 XnfTransformerHelper]: Simplified to disjunction of 61920 conjuctions. [2022-11-22 00:44:19,452 WARN L176 XnfTransformerHelper]: Simplifying disjunction of 42532 conjuctions. This might take some time...