./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/array-lopstr16/single_elem_safe.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_cd6002a4-cadc-472c-808f-7161e80dc6c8/bin/utaipan-g80aRyZoba/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd6002a4-cadc-472c-808f-7161e80dc6c8/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_cd6002a4-cadc-472c-808f-7161e80dc6c8/bin/utaipan-g80aRyZoba/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd6002a4-cadc-472c-808f-7161e80dc6c8/bin/utaipan-g80aRyZoba/config/TaipanReach.xml -i ../../sv-benchmarks/c/array-lopstr16/single_elem_safe.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd6002a4-cadc-472c-808f-7161e80dc6c8/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_cd6002a4-cadc-472c-808f-7161e80dc6c8/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 f1aed9bc44add9424c35127ba8c0166402387241540742ea765fb4b7385c8271 --- 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 01:56:41,427 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-22 01:56:41,429 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-22 01:56:41,459 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-22 01:56:41,461 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-22 01:56:41,465 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-22 01:56:41,471 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-22 01:56:41,475 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-22 01:56:41,479 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-22 01:56:41,485 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-22 01:56:41,487 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-22 01:56:41,490 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-22 01:56:41,491 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-22 01:56:41,494 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-22 01:56:41,496 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-22 01:56:41,499 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-22 01:56:41,502 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-22 01:56:41,504 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-22 01:56:41,506 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-22 01:56:41,513 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-22 01:56:41,515 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-22 01:56:41,518 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-22 01:56:41,520 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-22 01:56:41,521 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-22 01:56:41,532 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-22 01:56:41,534 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-22 01:56:41,534 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-22 01:56:41,536 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-22 01:56:41,537 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-22 01:56:41,538 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-22 01:56:41,539 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-22 01:56:41,540 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-22 01:56:41,543 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-22 01:56:41,545 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-22 01:56:41,546 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-22 01:56:41,546 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-22 01:56:41,547 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-22 01:56:41,548 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-22 01:56:41,548 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-22 01:56:41,550 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-22 01:56:41,551 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-22 01:56:41,552 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd6002a4-cadc-472c-808f-7161e80dc6c8/bin/utaipan-g80aRyZoba/config/svcomp-Reach-32bit-Taipan_Default.epf [2022-11-22 01:56:41,597 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-22 01:56:41,597 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-22 01:56:41,598 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-22 01:56:41,598 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-22 01:56:41,599 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-22 01:56:41,600 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-22 01:56:41,600 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-22 01:56:41,601 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-22 01:56:41,601 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-22 01:56:41,601 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-22 01:56:41,602 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-22 01:56:41,603 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-22 01:56:41,603 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-22 01:56:41,603 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-22 01:56:41,604 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-22 01:56:41,604 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-22 01:56:41,604 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-22 01:56:41,605 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-22 01:56:41,605 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-22 01:56:41,606 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-22 01:56:41,606 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-22 01:56:41,606 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-22 01:56:41,607 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-22 01:56:41,607 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-22 01:56:41,607 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-22 01:56:41,608 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-22 01:56:41,608 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-22 01:56:41,608 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-22 01:56:41,609 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-22 01:56:41,609 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-22 01:56:41,609 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-22 01:56:41,610 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-22 01:56:41,610 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-22 01:56:41,611 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-22 01:56:41,611 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-22 01:56:41,611 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-22 01:56:41,611 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-22 01:56:41,612 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-22 01:56:41,612 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-22 01:56:41,612 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-22 01:56:41,613 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-22 01:56:41,613 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_cd6002a4-cadc-472c-808f-7161e80dc6c8/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd6002a4-cadc-472c-808f-7161e80dc6c8/bin/utaipan-g80aRyZoba Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f1aed9bc44add9424c35127ba8c0166402387241540742ea765fb4b7385c8271 [2022-11-22 01:56:42,005 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-22 01:56:42,039 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-22 01:56:42,041 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-22 01:56:42,043 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-22 01:56:42,043 INFO L275 PluginConnector]: CDTParser initialized [2022-11-22 01:56:42,044 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd6002a4-cadc-472c-808f-7161e80dc6c8/bin/utaipan-g80aRyZoba/../../sv-benchmarks/c/array-lopstr16/single_elem_safe.i [2022-11-22 01:56:45,139 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-22 01:56:45,403 INFO L351 CDTParser]: Found 1 translation units. [2022-11-22 01:56:45,407 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd6002a4-cadc-472c-808f-7161e80dc6c8/sv-benchmarks/c/array-lopstr16/single_elem_safe.i [2022-11-22 01:56:45,415 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd6002a4-cadc-472c-808f-7161e80dc6c8/bin/utaipan-g80aRyZoba/data/8672f8a61/443d0d1d196d449593418653e3c60186/FLAGd54927915 [2022-11-22 01:56:45,437 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd6002a4-cadc-472c-808f-7161e80dc6c8/bin/utaipan-g80aRyZoba/data/8672f8a61/443d0d1d196d449593418653e3c60186 [2022-11-22 01:56:45,443 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-22 01:56:45,445 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-22 01:56:45,450 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-22 01:56:45,451 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-22 01:56:45,458 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-22 01:56:45,459 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 01:56:45" (1/1) ... [2022-11-22 01:56:45,460 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4d3aaa69 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:56:45, skipping insertion in model container [2022-11-22 01:56:45,461 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 01:56:45" (1/1) ... [2022-11-22 01:56:45,471 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-22 01:56:45,492 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-22 01:56:45,714 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_cd6002a4-cadc-472c-808f-7161e80dc6c8/sv-benchmarks/c/array-lopstr16/single_elem_safe.i[809,822] [2022-11-22 01:56:45,735 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-22 01:56:45,746 INFO L203 MainTranslator]: Completed pre-run [2022-11-22 01:56:45,759 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_cd6002a4-cadc-472c-808f-7161e80dc6c8/sv-benchmarks/c/array-lopstr16/single_elem_safe.i[809,822] [2022-11-22 01:56:45,766 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-22 01:56:45,782 INFO L208 MainTranslator]: Completed translation [2022-11-22 01:56:45,792 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:56:45 WrapperNode [2022-11-22 01:56:45,792 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-22 01:56:45,793 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-22 01:56:45,793 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-22 01:56:45,794 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-22 01:56:45,801 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:56:45" (1/1) ... [2022-11-22 01:56:45,808 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:56:45" (1/1) ... [2022-11-22 01:56:45,837 INFO L138 Inliner]: procedures = 19, calls = 20, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 73 [2022-11-22 01:56:45,837 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-22 01:56:45,838 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-22 01:56:45,838 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-22 01:56:45,838 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-22 01:56:45,848 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:56:45" (1/1) ... [2022-11-22 01:56:45,849 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:56:45" (1/1) ... [2022-11-22 01:56:45,851 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:56:45" (1/1) ... [2022-11-22 01:56:45,851 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:56:45" (1/1) ... [2022-11-22 01:56:45,856 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:56:45" (1/1) ... [2022-11-22 01:56:45,860 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:56:45" (1/1) ... [2022-11-22 01:56:45,861 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:56:45" (1/1) ... [2022-11-22 01:56:45,863 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:56:45" (1/1) ... [2022-11-22 01:56:45,865 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-22 01:56:45,866 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-22 01:56:45,866 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-22 01:56:45,866 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-22 01:56:45,867 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:56:45" (1/1) ... [2022-11-22 01:56:45,874 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-22 01:56:45,887 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd6002a4-cadc-472c-808f-7161e80dc6c8/bin/utaipan-g80aRyZoba/z3 [2022-11-22 01:56:45,901 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd6002a4-cadc-472c-808f-7161e80dc6c8/bin/utaipan-g80aRyZoba/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-22 01:56:45,936 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd6002a4-cadc-472c-808f-7161e80dc6c8/bin/utaipan-g80aRyZoba/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-22 01:56:45,969 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-22 01:56:45,969 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-22 01:56:45,969 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-22 01:56:45,969 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-22 01:56:45,970 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-22 01:56:45,970 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-22 01:56:45,970 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-22 01:56:45,971 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-22 01:56:45,971 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-22 01:56:46,094 INFO L235 CfgBuilder]: Building ICFG [2022-11-22 01:56:46,097 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-22 01:56:46,368 INFO L276 CfgBuilder]: Performing block encoding [2022-11-22 01:56:46,520 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-22 01:56:46,521 INFO L300 CfgBuilder]: Removed 2 assume(true) statements. [2022-11-22 01:56:46,524 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 01:56:46 BoogieIcfgContainer [2022-11-22 01:56:46,524 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-22 01:56:46,527 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-22 01:56:46,527 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-22 01:56:46,536 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-22 01:56:46,536 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.11 01:56:45" (1/3) ... [2022-11-22 01:56:46,537 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@59d83065 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 01:56:46, skipping insertion in model container [2022-11-22 01:56:46,538 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:56:45" (2/3) ... [2022-11-22 01:56:46,541 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@59d83065 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 01:56:46, skipping insertion in model container [2022-11-22 01:56:46,541 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 01:56:46" (3/3) ... [2022-11-22 01:56:46,543 INFO L112 eAbstractionObserver]: Analyzing ICFG single_elem_safe.i [2022-11-22 01:56:46,568 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-22 01:56:46,568 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-22 01:56:46,647 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-22 01:56:46,658 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;@b403a4a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-22 01:56:46,658 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-22 01:56:46,664 INFO L276 IsEmpty]: Start isEmpty. Operand has 10 states, 8 states have (on average 1.625) internal successors, (13), 9 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:56:46,671 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-11-22 01:56:46,671 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:56:46,672 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2022-11-22 01:56:46,673 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-22 01:56:46,678 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:56:46,679 INFO L85 PathProgramCache]: Analyzing trace with hash -1152590673, now seen corresponding path program 1 times [2022-11-22 01:56:46,690 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:56:46,691 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [198604679] [2022-11-22 01:56:46,691 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:56:46,692 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:56:46,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:56:46,948 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 01:56:46,949 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:56:46,950 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [198604679] [2022-11-22 01:56:46,950 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [198604679] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:56:46,951 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:56:46,952 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-22 01:56:46,953 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1885702112] [2022-11-22 01:56:46,955 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:56:46,959 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-22 01:56:46,961 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:56:47,004 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-22 01:56:47,005 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 01:56:47,008 INFO L87 Difference]: Start difference. First operand has 10 states, 8 states have (on average 1.625) internal successors, (13), 9 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 3 states have (on average 2.0) internal successors, (6), 2 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:56:47,153 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:56:47,154 INFO L93 Difference]: Finished difference Result 26 states and 35 transitions. [2022-11-22 01:56:47,156 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-22 01:56:47,158 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 2.0) internal successors, (6), 2 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 6 [2022-11-22 01:56:47,158 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:56:47,165 INFO L225 Difference]: With dead ends: 26 [2022-11-22 01:56:47,165 INFO L226 Difference]: Without dead ends: 17 [2022-11-22 01:56:47,173 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 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 01:56:47,177 INFO L413 NwaCegarLoop]: 6 mSDtfsCounter, 7 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 12 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-22 01:56:47,179 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 12 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-22 01:56:47,197 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states. [2022-11-22 01:56:47,208 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 10. [2022-11-22 01:56:47,210 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10 states, 9 states have (on average 1.3333333333333333) internal successors, (12), 9 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:56:47,210 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 12 transitions. [2022-11-22 01:56:47,212 INFO L78 Accepts]: Start accepts. Automaton has 10 states and 12 transitions. Word has length 6 [2022-11-22 01:56:47,212 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:56:47,212 INFO L495 AbstractCegarLoop]: Abstraction has 10 states and 12 transitions. [2022-11-22 01:56:47,212 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 2.0) internal successors, (6), 2 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:56:47,213 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states and 12 transitions. [2022-11-22 01:56:47,213 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-11-22 01:56:47,213 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:56:47,213 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2022-11-22 01:56:47,214 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-22 01:56:47,214 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-22 01:56:47,214 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:56:47,215 INFO L85 PathProgramCache]: Analyzing trace with hash -1165672885, now seen corresponding path program 1 times [2022-11-22 01:56:47,215 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:56:47,215 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [746387474] [2022-11-22 01:56:47,215 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:56:47,216 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:56:47,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:56:47,470 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 01:56:47,476 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:56:47,477 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [746387474] [2022-11-22 01:56:47,477 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [746387474] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-22 01:56:47,477 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2079054973] [2022-11-22 01:56:47,477 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:56:47,478 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 01:56:47,478 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd6002a4-cadc-472c-808f-7161e80dc6c8/bin/utaipan-g80aRyZoba/z3 [2022-11-22 01:56:47,484 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd6002a4-cadc-472c-808f-7161e80dc6c8/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-22 01:56:47,488 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd6002a4-cadc-472c-808f-7161e80dc6c8/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-22 01:56:47,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:56:47,620 INFO L263 TraceCheckSpWp]: Trace formula consists of 129 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-22 01:56:47,625 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 01:56:47,676 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 01:56:47,676 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-22 01:56:47,713 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 01:56:47,715 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2079054973] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-22 01:56:47,715 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1274213394] [2022-11-22 01:56:47,744 INFO L159 IcfgInterpreter]: Started Sifa with 7 locations of interest [2022-11-22 01:56:47,744 INFO L166 IcfgInterpreter]: Building call graph [2022-11-22 01:56:47,749 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-22 01:56:47,756 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-22 01:56:47,760 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-22 01:56:47,851 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 6 [2022-11-22 01:56:47,869 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 6 [2022-11-22 01:56:48,679 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-22 01:56:48,701 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-22 01:56:48,746 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:56:48,749 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:56:48,753 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:56:48,755 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:56:48,763 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:56:48,765 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:56:48,768 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:56:48,797 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 13 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 35 [2022-11-22 01:56:48,909 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:56:48,923 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:56:48,925 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:56:48,927 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:56:48,929 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:56:48,931 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:56:48,933 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:56:48,935 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:56:48,956 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 6 select indices, 6 select index equivalence classes, 15 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 49 [2022-11-22 01:56:49,464 INFO L321 Elim1Store]: treesize reduction 487, result has 11.0 percent of original size [2022-11-22 01:56:49,465 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 12 case distinctions, treesize of input 559 treesize of output 591 [2022-11-22 01:56:49,574 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 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 66 [2022-11-22 01:56:49,589 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 19 treesize of output 12 [2022-11-22 01:56:49,604 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 9 [2022-11-22 01:56:49,651 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:56:49,663 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 2 new quantified variables, introduced 0 case distinctions, treesize of input 73 treesize of output 66 [2022-11-22 01:56:49,680 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 19 treesize of output 12 [2022-11-22 01:56:49,696 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 9 [2022-11-22 01:56:49,829 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:56:49,830 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:56:49,837 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 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 87 treesize of output 78 [2022-11-22 01:56:49,856 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 19 treesize of output 12 [2022-11-22 01:56:50,093 INFO L321 Elim1Store]: treesize reduction 74, result has 12.9 percent of original size [2022-11-22 01:56:50,094 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 4 case distinctions, treesize of input 835 treesize of output 856 [2022-11-22 01:56:50,747 INFO L321 Elim1Store]: treesize reduction 141, result has 28.4 percent of original size [2022-11-22 01:56:50,748 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 6 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 8 new quantified variables, introduced 13 case distinctions, treesize of input 856 treesize of output 1243 [2022-11-22 01:56:51,008 INFO L321 Elim1Store]: treesize reduction 101, result has 8.2 percent of original size [2022-11-22 01:56:51,009 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 5 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 3 case distinctions, treesize of input 785 treesize of output 1200 [2022-11-22 01:56:52,769 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:56:52,943 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:56:53,012 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 34 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 35 new quantified variables, introduced 0 case distinctions, treesize of input 8875 treesize of output 53417 [2022-11-22 01:58:06,756 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:58:07,732 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-22 01:58:11,099 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:58:18,463 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:58:20,071 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:58:23,815 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:58:26,204 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:58:26,839 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:58:34,894 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:58:35,410 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:58:39,437 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:58:46,544 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:58:47,827 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:59:50,885 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:59:52,900 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:59:52,901 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:59:52,902 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:59:56,756 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:59:56,757 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:59:59,233 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:59:59,234 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 02:00:00,520 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 02:00:00,521 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 02:00:00,522 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 02:00:00,523 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 02:00:02,500 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 02:00:03,969 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 02:00:03,971 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 02:00:04,888 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 02:00:04,888 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 02:00:05,776 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 02:00:06,459 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 02:00:07,248 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 02:00:07,249 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 02:00:07,250 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 02:00:12,292 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 02:00:16,643 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 02:00:21,469 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 02:00:23,275 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 02:00:28,137 INFO L217 Elim1Store]: Index analysis took 135210 ms [2022-11-22 02:00:29,524 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 167 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 12 new quantified variables, introduced 0 case distinctions, treesize of input 49406 treesize of output 6504638 [2022-11-22 02:01:50,954 WARN L233 SmtUtils]: Spent 1.35m on a formula simplification that was a NOOP. DAG size: 169425 (called from [L 800] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2022-11-22 02:02:37,536 WARN L233 SmtUtils]: Spent 12.62s on a formula simplification. DAG size of input: 46566 DAG size of output: 46564 (called from [L 800] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify)