./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/forester-heap/sll-buckets-1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version dbf71c69 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_823e0e74-28fa-4437-bc32-e765710546de/bin/utaipan-G1rejxKTta/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_823e0e74-28fa-4437-bc32-e765710546de/bin/utaipan-G1rejxKTta/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_823e0e74-28fa-4437-bc32-e765710546de/bin/utaipan-G1rejxKTta/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_823e0e74-28fa-4437-bc32-e765710546de/bin/utaipan-G1rejxKTta/config/TaipanReach.xml -i ../../sv-benchmarks/c/forester-heap/sll-buckets-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_823e0e74-28fa-4437-bc32-e765710546de/bin/utaipan-G1rejxKTta/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_823e0e74-28fa-4437-bc32-e765710546de/bin/utaipan-G1rejxKTta --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 c6b726a83620fff2a21a6dbfdec50e244c1786dd86dd76b1719515a59b3627ac --- 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-dbf71c6-m [2022-10-17 17:15:45,567 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-10-17 17:15:45,570 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-10-17 17:15:45,603 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-10-17 17:15:45,604 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-10-17 17:15:45,606 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-10-17 17:15:45,608 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-10-17 17:15:45,610 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-10-17 17:15:45,612 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-10-17 17:15:45,614 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-10-17 17:15:45,615 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-10-17 17:15:45,617 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-10-17 17:15:45,618 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-10-17 17:15:45,619 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-10-17 17:15:45,621 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-10-17 17:15:45,623 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-10-17 17:15:45,624 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-10-17 17:15:45,626 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-10-17 17:15:45,628 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-10-17 17:15:45,631 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-10-17 17:15:45,633 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-10-17 17:15:45,635 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-10-17 17:15:45,637 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-10-17 17:15:45,638 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-10-17 17:15:45,644 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-10-17 17:15:45,645 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-10-17 17:15:45,645 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-10-17 17:15:45,647 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-10-17 17:15:45,647 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-10-17 17:15:45,649 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-10-17 17:15:45,649 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-10-17 17:15:45,651 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-10-17 17:15:45,652 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-10-17 17:15:45,654 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-10-17 17:15:45,655 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-10-17 17:15:45,656 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-10-17 17:15:45,657 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-10-17 17:15:45,658 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-10-17 17:15:45,658 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-10-17 17:15:45,660 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-10-17 17:15:45,661 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-10-17 17:15:45,662 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_823e0e74-28fa-4437-bc32-e765710546de/bin/utaipan-G1rejxKTta/config/svcomp-Reach-32bit-Taipan_Default.epf [2022-10-17 17:15:45,689 INFO L113 SettingsManager]: Loading preferences was successful [2022-10-17 17:15:45,689 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-10-17 17:15:45,690 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-10-17 17:15:45,690 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-10-17 17:15:45,691 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-10-17 17:15:45,691 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-10-17 17:15:45,691 INFO L138 SettingsManager]: * User list type=DISABLED [2022-10-17 17:15:45,691 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-10-17 17:15:45,692 INFO L138 SettingsManager]: * Explicit value domain=true [2022-10-17 17:15:45,692 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-10-17 17:15:45,692 INFO L138 SettingsManager]: * Octagon Domain=false [2022-10-17 17:15:45,692 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-10-17 17:15:45,693 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-10-17 17:15:45,693 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-10-17 17:15:45,693 INFO L138 SettingsManager]: * Interval Domain=false [2022-10-17 17:15:45,693 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-10-17 17:15:45,694 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-10-17 17:15:45,694 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-10-17 17:15:45,695 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-10-17 17:15:45,695 INFO L138 SettingsManager]: * sizeof long=4 [2022-10-17 17:15:45,695 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-10-17 17:15:45,696 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-10-17 17:15:45,696 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-10-17 17:15:45,696 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-10-17 17:15:45,696 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-10-17 17:15:45,697 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-10-17 17:15:45,697 INFO L138 SettingsManager]: * sizeof long double=12 [2022-10-17 17:15:45,697 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-10-17 17:15:45,697 INFO L138 SettingsManager]: * Use constant arrays=true [2022-10-17 17:15:45,698 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-10-17 17:15:45,698 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-10-17 17:15:45,698 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-10-17 17:15:45,698 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-17 17:15:45,699 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-10-17 17:15:45,699 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-10-17 17:15:45,699 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-10-17 17:15:45,700 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-10-17 17:15:45,700 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-10-17 17:15:45,700 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-10-17 17:15:45,700 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-10-17 17:15:45,700 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-10-17 17:15:45,701 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_823e0e74-28fa-4437-bc32-e765710546de/bin/utaipan-G1rejxKTta/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_823e0e74-28fa-4437-bc32-e765710546de/bin/utaipan-G1rejxKTta Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c6b726a83620fff2a21a6dbfdec50e244c1786dd86dd76b1719515a59b3627ac [2022-10-17 17:15:45,936 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-10-17 17:15:45,959 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-10-17 17:15:45,963 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-10-17 17:15:45,964 INFO L271 PluginConnector]: Initializing CDTParser... [2022-10-17 17:15:45,965 INFO L275 PluginConnector]: CDTParser initialized [2022-10-17 17:15:45,967 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_823e0e74-28fa-4437-bc32-e765710546de/bin/utaipan-G1rejxKTta/../../sv-benchmarks/c/forester-heap/sll-buckets-1.i [2022-10-17 17:15:46,070 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_823e0e74-28fa-4437-bc32-e765710546de/bin/utaipan-G1rejxKTta/data/7f0b4e663/ce677640dde349708186d47e864d125a/FLAG3cfb7abe1 [2022-10-17 17:15:46,552 INFO L306 CDTParser]: Found 1 translation units. [2022-10-17 17:15:46,553 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_823e0e74-28fa-4437-bc32-e765710546de/sv-benchmarks/c/forester-heap/sll-buckets-1.i [2022-10-17 17:15:46,572 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_823e0e74-28fa-4437-bc32-e765710546de/bin/utaipan-G1rejxKTta/data/7f0b4e663/ce677640dde349708186d47e864d125a/FLAG3cfb7abe1 [2022-10-17 17:15:46,872 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_823e0e74-28fa-4437-bc32-e765710546de/bin/utaipan-G1rejxKTta/data/7f0b4e663/ce677640dde349708186d47e864d125a [2022-10-17 17:15:46,875 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-10-17 17:15:46,877 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-10-17 17:15:46,890 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-10-17 17:15:46,891 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-10-17 17:15:46,893 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-10-17 17:15:46,894 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.10 05:15:46" (1/1) ... [2022-10-17 17:15:46,895 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@be99986 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 05:15:46, skipping insertion in model container [2022-10-17 17:15:46,896 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.10 05:15:46" (1/1) ... [2022-10-17 17:15:46,905 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-10-17 17:15:46,963 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-10-17 17:15:47,443 WARN L230 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_823e0e74-28fa-4437-bc32-e765710546de/sv-benchmarks/c/forester-heap/sll-buckets-1.i[22663,22676] [2022-10-17 17:15:47,449 WARN L230 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_823e0e74-28fa-4437-bc32-e765710546de/sv-benchmarks/c/forester-heap/sll-buckets-1.i[22734,22747] [2022-10-17 17:15:47,452 WARN L230 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_823e0e74-28fa-4437-bc32-e765710546de/sv-benchmarks/c/forester-heap/sll-buckets-1.i[22862,22875] [2022-10-17 17:15:47,461 WARN L230 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_823e0e74-28fa-4437-bc32-e765710546de/sv-benchmarks/c/forester-heap/sll-buckets-1.i[23275,23288] [2022-10-17 17:15:47,462 WARN L230 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_823e0e74-28fa-4437-bc32-e765710546de/sv-benchmarks/c/forester-heap/sll-buckets-1.i[23364,23377] [2022-10-17 17:15:47,470 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-17 17:15:47,479 INFO L203 MainTranslator]: Completed pre-run [2022-10-17 17:15:47,540 WARN L230 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_823e0e74-28fa-4437-bc32-e765710546de/sv-benchmarks/c/forester-heap/sll-buckets-1.i[22663,22676] [2022-10-17 17:15:47,545 WARN L230 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_823e0e74-28fa-4437-bc32-e765710546de/sv-benchmarks/c/forester-heap/sll-buckets-1.i[22734,22747] [2022-10-17 17:15:47,548 WARN L230 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_823e0e74-28fa-4437-bc32-e765710546de/sv-benchmarks/c/forester-heap/sll-buckets-1.i[22862,22875] [2022-10-17 17:15:47,553 WARN L230 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_823e0e74-28fa-4437-bc32-e765710546de/sv-benchmarks/c/forester-heap/sll-buckets-1.i[23275,23288] [2022-10-17 17:15:47,555 WARN L230 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_823e0e74-28fa-4437-bc32-e765710546de/sv-benchmarks/c/forester-heap/sll-buckets-1.i[23364,23377] [2022-10-17 17:15:47,557 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-17 17:15:47,590 INFO L208 MainTranslator]: Completed translation [2022-10-17 17:15:47,591 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 05:15:47 WrapperNode [2022-10-17 17:15:47,592 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-10-17 17:15:47,593 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-10-17 17:15:47,593 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-10-17 17:15:47,593 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-10-17 17:15:47,601 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 05:15:47" (1/1) ... [2022-10-17 17:15:47,635 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 05:15:47" (1/1) ... [2022-10-17 17:15:47,672 INFO L138 Inliner]: procedures = 119, calls = 42, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 155 [2022-10-17 17:15:47,673 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-10-17 17:15:47,675 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-10-17 17:15:47,676 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-10-17 17:15:47,676 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-10-17 17:15:47,685 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 05:15:47" (1/1) ... [2022-10-17 17:15:47,686 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 05:15:47" (1/1) ... [2022-10-17 17:15:47,706 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 05:15:47" (1/1) ... [2022-10-17 17:15:47,707 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 05:15:47" (1/1) ... [2022-10-17 17:15:47,715 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 05:15:47" (1/1) ... [2022-10-17 17:15:47,721 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 05:15:47" (1/1) ... [2022-10-17 17:15:47,723 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 05:15:47" (1/1) ... [2022-10-17 17:15:47,724 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 05:15:47" (1/1) ... [2022-10-17 17:15:47,728 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-10-17 17:15:47,729 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-10-17 17:15:47,729 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-10-17 17:15:47,729 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-10-17 17:15:47,730 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 05:15:47" (1/1) ... [2022-10-17 17:15:47,740 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-17 17:15:47,760 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_823e0e74-28fa-4437-bc32-e765710546de/bin/utaipan-G1rejxKTta/z3 [2022-10-17 17:15:47,770 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_823e0e74-28fa-4437-bc32-e765710546de/bin/utaipan-G1rejxKTta/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-10-17 17:15:47,772 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_823e0e74-28fa-4437-bc32-e765710546de/bin/utaipan-G1rejxKTta/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-10-17 17:15:47,806 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-10-17 17:15:47,806 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-10-17 17:15:47,806 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-10-17 17:15:47,806 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-10-17 17:15:47,806 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-10-17 17:15:47,806 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-10-17 17:15:47,806 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-10-17 17:15:47,807 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-10-17 17:15:47,807 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-10-17 17:15:47,807 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-10-17 17:15:47,907 INFO L235 CfgBuilder]: Building ICFG [2022-10-17 17:15:47,908 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-10-17 17:15:48,301 INFO L276 CfgBuilder]: Performing block encoding [2022-10-17 17:15:48,393 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-10-17 17:15:48,393 INFO L300 CfgBuilder]: Removed 15 assume(true) statements. [2022-10-17 17:15:48,396 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.10 05:15:48 BoogieIcfgContainer [2022-10-17 17:15:48,396 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-10-17 17:15:48,399 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-10-17 17:15:48,400 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-10-17 17:15:48,424 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-10-17 17:15:48,425 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.10 05:15:46" (1/3) ... [2022-10-17 17:15:48,425 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@14af1a23 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.10 05:15:48, skipping insertion in model container [2022-10-17 17:15:48,426 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 05:15:47" (2/3) ... [2022-10-17 17:15:48,426 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@14af1a23 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.10 05:15:48, skipping insertion in model container [2022-10-17 17:15:48,426 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.10 05:15:48" (3/3) ... [2022-10-17 17:15:48,427 INFO L112 eAbstractionObserver]: Analyzing ICFG sll-buckets-1.i [2022-10-17 17:15:48,472 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-10-17 17:15:48,476 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 5 error locations. [2022-10-17 17:15:48,557 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-10-17 17:15:48,570 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;@2bd9d534, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-10-17 17:15:48,570 INFO L358 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2022-10-17 17:15:48,574 INFO L276 IsEmpty]: Start isEmpty. Operand has 37 states, 31 states have (on average 1.935483870967742) internal successors, (60), 36 states have internal predecessors, (60), 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) [2022-10-17 17:15:48,580 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-10-17 17:15:48,581 INFO L187 NwaCegarLoop]: Found error trace [2022-10-17 17:15:48,581 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2022-10-17 17:15:48,582 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-10-17 17:15:48,586 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 17:15:48,587 INFO L85 PathProgramCache]: Analyzing trace with hash 196178540, now seen corresponding path program 1 times [2022-10-17 17:15:48,597 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-10-17 17:15:48,598 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [279634836] [2022-10-17 17:15:48,598 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 17:15:48,599 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 17:15:48,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 17:15:49,163 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 17:15:49,164 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-10-17 17:15:49,165 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [279634836] [2022-10-17 17:15:49,166 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [279634836] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-17 17:15:49,167 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-17 17:15:49,167 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-17 17:15:49,169 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [938798575] [2022-10-17 17:15:49,170 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-17 17:15:49,176 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-17 17:15:49,176 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-10-17 17:15:49,216 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-17 17:15:49,217 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-17 17:15:49,220 INFO L87 Difference]: Start difference. First operand has 37 states, 31 states have (on average 1.935483870967742) internal successors, (60), 36 states have internal predecessors, (60), 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 4 states, 4 states have (on average 1.25) internal successors, (5), 3 states have internal predecessors, (5), 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) [2022-10-17 17:15:49,402 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-17 17:15:49,403 INFO L93 Difference]: Finished difference Result 96 states and 160 transitions. [2022-10-17 17:15:49,404 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-17 17:15:49,405 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 1.25) internal successors, (5), 3 states have internal predecessors, (5), 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 5 [2022-10-17 17:15:49,406 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-17 17:15:49,422 INFO L225 Difference]: With dead ends: 96 [2022-10-17 17:15:49,425 INFO L226 Difference]: Without dead ends: 59 [2022-10-17 17:15:49,429 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-10-17 17:15:49,433 INFO L413 NwaCegarLoop]: 25 mSDtfsCounter, 80 mSDsluCounter, 34 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 80 SdHoareTripleChecker+Valid, 56 SdHoareTripleChecker+Invalid, 38 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 30 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-17 17:15:49,437 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [80 Valid, 56 Invalid, 38 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-17 17:15:49,456 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59 states. [2022-10-17 17:15:49,474 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59 to 37. [2022-10-17 17:15:49,476 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 37 states, 33 states have (on average 1.303030303030303) internal successors, (43), 36 states have internal predecessors, (43), 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) [2022-10-17 17:15:49,477 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 43 transitions. [2022-10-17 17:15:49,479 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 43 transitions. Word has length 5 [2022-10-17 17:15:49,479 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-17 17:15:49,479 INFO L495 AbstractCegarLoop]: Abstraction has 37 states and 43 transitions. [2022-10-17 17:15:49,480 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 1.25) internal successors, (5), 3 states have internal predecessors, (5), 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) [2022-10-17 17:15:49,480 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 43 transitions. [2022-10-17 17:15:49,480 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-10-17 17:15:49,481 INFO L187 NwaCegarLoop]: Found error trace [2022-10-17 17:15:49,481 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2022-10-17 17:15:49,481 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-10-17 17:15:49,482 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-10-17 17:15:49,483 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 17:15:49,483 INFO L85 PathProgramCache]: Analyzing trace with hash -450856688, now seen corresponding path program 1 times [2022-10-17 17:15:49,483 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-10-17 17:15:49,484 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1868805985] [2022-10-17 17:15:49,484 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 17:15:49,484 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 17:15:49,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 17:15:49,578 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 17:15:49,579 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-10-17 17:15:49,579 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1868805985] [2022-10-17 17:15:49,581 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1868805985] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-17 17:15:49,585 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-17 17:15:49,585 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-17 17:15:49,586 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1888483153] [2022-10-17 17:15:49,586 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-17 17:15:49,588 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-17 17:15:49,588 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-10-17 17:15:49,589 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-17 17:15:49,590 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-17 17:15:49,591 INFO L87 Difference]: Start difference. First operand 37 states and 43 transitions. Second operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 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) [2022-10-17 17:15:49,793 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-17 17:15:49,794 INFO L93 Difference]: Finished difference Result 41 states and 48 transitions. [2022-10-17 17:15:49,794 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-17 17:15:49,795 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 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 7 [2022-10-17 17:15:49,795 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-17 17:15:49,796 INFO L225 Difference]: With dead ends: 41 [2022-10-17 17:15:49,796 INFO L226 Difference]: Without dead ends: 39 [2022-10-17 17:15:49,797 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 [2022-10-17 17:15:49,798 INFO L413 NwaCegarLoop]: 34 mSDtfsCounter, 19 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 19 SdHoareTripleChecker+Valid, 46 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-10-17 17:15:49,799 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [19 Valid, 46 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-10-17 17:15:49,800 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states. [2022-10-17 17:15:49,805 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 35. [2022-10-17 17:15:49,806 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35 states, 32 states have (on average 1.28125) internal successors, (41), 34 states have internal predecessors, (41), 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) [2022-10-17 17:15:49,807 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 41 transitions. [2022-10-17 17:15:49,807 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 41 transitions. Word has length 7 [2022-10-17 17:15:49,808 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-17 17:15:49,808 INFO L495 AbstractCegarLoop]: Abstraction has 35 states and 41 transitions. [2022-10-17 17:15:49,808 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 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) [2022-10-17 17:15:49,808 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 41 transitions. [2022-10-17 17:15:49,809 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-10-17 17:15:49,809 INFO L187 NwaCegarLoop]: Found error trace [2022-10-17 17:15:49,809 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-10-17 17:15:49,810 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-10-17 17:15:49,810 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-10-17 17:15:49,811 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 17:15:49,811 INFO L85 PathProgramCache]: Analyzing trace with hash -1874340424, now seen corresponding path program 1 times [2022-10-17 17:15:49,811 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-10-17 17:15:49,812 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [71377948] [2022-10-17 17:15:49,812 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 17:15:49,812 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 17:15:49,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 17:15:49,909 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 17:15:49,909 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-10-17 17:15:49,910 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [71377948] [2022-10-17 17:15:49,910 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [71377948] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-17 17:15:49,910 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-17 17:15:49,910 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-17 17:15:49,910 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1997446581] [2022-10-17 17:15:49,911 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-17 17:15:49,911 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-17 17:15:49,911 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-10-17 17:15:49,912 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-17 17:15:49,912 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-17 17:15:49,912 INFO L87 Difference]: Start difference. First operand 35 states and 41 transitions. Second operand has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 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) [2022-10-17 17:15:49,982 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-17 17:15:49,983 INFO L93 Difference]: Finished difference Result 39 states and 46 transitions. [2022-10-17 17:15:49,983 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-17 17:15:49,983 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), 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 8 [2022-10-17 17:15:49,984 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-17 17:15:49,984 INFO L225 Difference]: With dead ends: 39 [2022-10-17 17:15:49,984 INFO L226 Difference]: Without dead ends: 37 [2022-10-17 17:15:49,985 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 [2022-10-17 17:15:49,986 INFO L413 NwaCegarLoop]: 31 mSDtfsCounter, 6 mSDsluCounter, 23 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 54 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-17 17:15:49,987 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 54 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-17 17:15:49,988 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states. [2022-10-17 17:15:49,993 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 33. [2022-10-17 17:15:49,993 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33 states, 31 states have (on average 1.2580645161290323) internal successors, (39), 32 states have internal predecessors, (39), 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) [2022-10-17 17:15:49,994 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 39 transitions. [2022-10-17 17:15:49,994 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 39 transitions. Word has length 8 [2022-10-17 17:15:49,995 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-17 17:15:49,995 INFO L495 AbstractCegarLoop]: Abstraction has 33 states and 39 transitions. [2022-10-17 17:15:49,995 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), 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) [2022-10-17 17:15:49,995 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 39 transitions. [2022-10-17 17:15:49,995 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-10-17 17:15:49,996 INFO L187 NwaCegarLoop]: Found error trace [2022-10-17 17:15:49,996 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-17 17:15:49,996 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-10-17 17:15:49,996 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-10-17 17:15:49,997 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 17:15:49,997 INFO L85 PathProgramCache]: Analyzing trace with hash 2023416261, now seen corresponding path program 1 times [2022-10-17 17:15:49,997 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-10-17 17:15:49,997 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2122914891] [2022-10-17 17:15:49,998 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 17:15:49,998 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 17:15:50,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 17:15:51,054 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 17:15:51,055 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-10-17 17:15:51,055 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2122914891] [2022-10-17 17:15:51,055 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2122914891] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-17 17:15:51,055 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-17 17:15:51,056 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-10-17 17:15:51,056 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1902114558] [2022-10-17 17:15:51,056 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-17 17:15:51,057 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-10-17 17:15:51,057 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-10-17 17:15:51,058 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-10-17 17:15:51,059 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-10-17 17:15:51,060 INFO L87 Difference]: Start difference. First operand 33 states and 39 transitions. Second operand has 5 states, 5 states have (on average 1.8) internal successors, (9), 4 states have internal predecessors, (9), 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) [2022-10-17 17:15:51,236 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-17 17:15:51,236 INFO L93 Difference]: Finished difference Result 52 states and 61 transitions. [2022-10-17 17:15:51,237 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-17 17:15:51,237 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 1.8) internal successors, (9), 4 states have internal predecessors, (9), 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 9 [2022-10-17 17:15:51,237 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-17 17:15:51,238 INFO L225 Difference]: With dead ends: 52 [2022-10-17 17:15:51,238 INFO L226 Difference]: Without dead ends: 41 [2022-10-17 17:15:51,239 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2022-10-17 17:15:51,247 INFO L413 NwaCegarLoop]: 28 mSDtfsCounter, 13 mSDsluCounter, 55 mSDsCounter, 0 mSdLazyCounter, 56 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 81 SdHoareTripleChecker+Invalid, 62 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 56 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-17 17:15:51,249 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 81 Invalid, 62 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 56 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-17 17:15:51,255 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41 states. [2022-10-17 17:15:51,269 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41 to 38. [2022-10-17 17:15:51,270 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 38 states, 36 states have (on average 1.25) internal successors, (45), 37 states have internal predecessors, (45), 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) [2022-10-17 17:15:51,271 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 45 transitions. [2022-10-17 17:15:51,271 INFO L78 Accepts]: Start accepts. Automaton has 38 states and 45 transitions. Word has length 9 [2022-10-17 17:15:51,272 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-17 17:15:51,272 INFO L495 AbstractCegarLoop]: Abstraction has 38 states and 45 transitions. [2022-10-17 17:15:51,272 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 1.8) internal successors, (9), 4 states have internal predecessors, (9), 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) [2022-10-17 17:15:51,272 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 45 transitions. [2022-10-17 17:15:51,273 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2022-10-17 17:15:51,273 INFO L187 NwaCegarLoop]: Found error trace [2022-10-17 17:15:51,273 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-17 17:15:51,273 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-10-17 17:15:51,274 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-10-17 17:15:51,274 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 17:15:51,274 INFO L85 PathProgramCache]: Analyzing trace with hash 783479132, now seen corresponding path program 1 times [2022-10-17 17:15:51,274 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-10-17 17:15:51,275 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [927461426] [2022-10-17 17:15:51,275 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 17:15:51,275 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 17:15:51,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 17:15:51,924 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 17:15:51,924 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-10-17 17:15:51,924 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [927461426] [2022-10-17 17:15:51,924 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [927461426] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-17 17:15:51,924 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1698159956] [2022-10-17 17:15:51,925 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 17:15:51,925 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-17 17:15:51,926 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_823e0e74-28fa-4437-bc32-e765710546de/bin/utaipan-G1rejxKTta/z3 [2022-10-17 17:15:51,935 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_823e0e74-28fa-4437-bc32-e765710546de/bin/utaipan-G1rejxKTta/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-17 17:15:51,961 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_823e0e74-28fa-4437-bc32-e765710546de/bin/utaipan-G1rejxKTta/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-10-17 17:15:52,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 17:15:52,104 INFO L263 TraceCheckSpWp]: Trace formula consists of 240 conjuncts, 34 conjunts are in the unsatisfiable core [2022-10-17 17:15:52,116 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-17 17:15:52,236 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-17 17:15:52,247 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 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 22 treesize of output 26 [2022-10-17 17:15:52,313 INFO L356 Elim1Store]: treesize reduction 44, result has 20.0 percent of original size [2022-10-17 17:15:52,314 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 2 case distinctions, treesize of input 65 treesize of output 64 [2022-10-17 17:15:52,358 INFO L356 Elim1Store]: treesize reduction 76, result has 16.5 percent of original size [2022-10-17 17:15:52,368 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 4 case distinctions, treesize of input 51 treesize of output 46 [2022-10-17 17:15:52,611 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-17 17:15:52,613 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 2 new quantified variables, introduced 0 case distinctions, treesize of input 107 treesize of output 102 [2022-10-17 17:15:52,633 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 3 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 73 treesize of output 104 [2022-10-17 17:15:52,671 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 64 treesize of output 61 [2022-10-17 17:15:52,709 INFO L356 Elim1Store]: treesize reduction 8, result has 52.9 percent of original size [2022-10-17 17:15:52,709 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 16 treesize of output 18 [2022-10-17 17:15:52,755 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 2 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 18 treesize of output 1 [2022-10-17 17:15:52,817 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 24 treesize of output 12 [2022-10-17 17:15:52,827 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 17:15:52,828 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-17 17:15:52,915 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-10-17 17:15:52,916 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 1 new quantified variables, introduced 1 case distinctions, treesize of input 93 treesize of output 91 [2022-10-17 17:15:52,948 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-10-17 17:15:52,948 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 3 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 84 treesize of output 121 [2022-10-17 17:15:53,047 WARN L833 $PredicateComparison]: unable to prove that (forall ((|v_ULTIMATE.start_main_~item~0#1.base_26| Int) (v_ArrVal_486 (Array Int Int))) (or (not (= (select |c_#valid| |v_ULTIMATE.start_main_~item~0#1.base_26|) 0)) (not (= (select (select (store |c_#memory_$Pointer$.base| |v_ULTIMATE.start_main_~item~0#1.base_26| v_ArrVal_486) |c_ULTIMATE.start_main_~bucket~0#1.base|) |c_ULTIMATE.start_main_~bucket~0#1.offset|) 0)))) is different from false [2022-10-17 17:15:53,060 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 17:15:53,061 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1698159956] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-17 17:15:53,061 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1003738952] [2022-10-17 17:15:53,084 INFO L159 IcfgInterpreter]: Started Sifa with 12 locations of interest [2022-10-17 17:15:53,085 INFO L166 IcfgInterpreter]: Building call graph [2022-10-17 17:15:53,088 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-10-17 17:15:53,094 INFO L176 IcfgInterpreter]: Starting interpretation [2022-10-17 17:15:53,095 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-10-17 17:15:53,307 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-17 17:15:53,363 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-17 17:15:53,413 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-17 17:15:53,464 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-17 17:15:53,518 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-17 17:15:53,575 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-17 17:15:53,607 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-17 17:15:53,671 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-17 17:15:53,734 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-17 17:15:53,734 INFO L244 Elim1Store]: Index analysis took 467 ms [2022-10-17 17:15:53,738 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 13 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 32 [2022-10-17 17:15:53,946 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-17 17:15:53,966 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-17 17:15:53,981 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-17 17:15:54,066 INFO L244 Elim1Store]: Index analysis took 149 ms [2022-10-17 17:15:54,595 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 51 treesize of output 26 [2022-10-17 17:15:54,628 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-17 17:15:54,650 INFO L173 IndexEqualityManager]: detected equality via solver [2022-10-17 17:15:54,654 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-17 17:15:54,680 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-17 17:15:55,231 INFO L356 Elim1Store]: treesize reduction 34, result has 33.3 percent of original size [2022-10-17 17:15:55,232 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 5 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 301 treesize of output 195 [2022-10-17 17:15:55,275 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-17 17:15:55,281 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-17 17:15:55,282 INFO L173 IndexEqualityManager]: detected equality via solver [2022-10-17 17:15:55,284 INFO L173 IndexEqualityManager]: detected equality via solver [2022-10-17 17:15:55,914 INFO L356 Elim1Store]: treesize reduction 82, result has 27.4 percent of original size [2022-10-17 17:15:55,915 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 5 new quantified variables, introduced 9 case distinctions, treesize of input 282 treesize of output 217 [2022-10-17 17:15:55,959 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-17 17:15:55,960 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-17 17:15:55,962 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-17 17:15:55,963 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-17 17:15:55,965 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-17 17:15:55,994 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 12 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 135 treesize of output 59 [2022-10-17 17:15:56,010 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-17 17:15:56,012 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-17 17:15:56,013 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-17 17:15:56,015 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-17 17:15:56,016 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-17 17:15:56,018 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 9 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 55 treesize of output 67 [2022-10-17 17:15:56,031 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-17 17:15:56,032 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-17 17:15:56,034 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-17 17:15:56,042 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-17 17:15:56,043 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-17 17:15:56,044 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-17 17:15:56,046 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-17 17:15:56,047 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-17 17:15:56,048 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-17 17:15:56,049 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-17 17:15:56,051 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-17 17:15:56,052 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-17 17:15:56,055 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 51 treesize of output 53 [2022-10-17 17:15:56,100 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-17 17:15:56,103 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-17 17:15:56,105 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-17 17:15:56,108 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-17 17:15:56,109 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-17 17:15:56,160 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 10 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 81 treesize of output 57 [2022-10-17 17:15:56,176 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-17 17:15:56,178 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-17 17:15:56,181 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-17 17:15:56,194 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 7 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 62 treesize of output 47 [2022-10-17 17:15:56,208 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-17 17:15:56,210 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-17 17:15:56,211 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-17 17:15:56,213 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-17 17:15:56,214 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-17 17:15:56,218 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-17 17:15:56,237 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 11 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 59 treesize of output 56 [2022-10-17 17:15:56,262 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-17 17:15:56,263 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-17 17:15:56,266 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-17 17:15:56,268 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-17 17:15:56,269 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-17 17:15:56,272 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-17 17:15:56,273 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-17 17:15:56,276 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 11 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 59 treesize of output 59 [2022-10-17 17:15:56,397 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-17 17:15:56,398 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-17 17:15:56,399 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-17 17:15:56,402 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-17 17:15:56,403 INFO L173 IndexEqualityManager]: detected equality via solver [2022-10-17 17:15:56,407 INFO L173 IndexEqualityManager]: detected equality via solver [2022-10-17 17:15:56,540 INFO L356 Elim1Store]: treesize reduction 124, result has 19.0 percent of original size [2022-10-17 17:15:56,540 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 5 disjoint index pairs (out of 15 index pairs), introduced 9 new quantified variables, introduced 18 case distinctions, treesize of input 410 treesize of output 303 [2022-10-17 17:15:56,586 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-17 17:15:56,588 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-17 17:15:56,590 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-17 17:15:56,592 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-17 17:15:56,594 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-17 17:15:56,595 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-17 17:15:56,597 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-17 17:15:56,599 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-17 17:15:56,601 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-17 17:15:56,603 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 13 disjoint index pairs (out of 15 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 211 treesize of output 194 [2022-10-17 17:15:56,664 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-17 17:15:56,665 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-17 17:15:56,667 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-17 17:15:56,668 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-17 17:15:56,670 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-17 17:15:56,672 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-17 17:15:56,674 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-17 17:15:56,677 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-17 17:15:56,678 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-17 17:15:56,680 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-17 17:15:56,682 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-17 17:15:56,685 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 3 stores, 5 select indices, 5 select index equivalence classes, 18 disjoint index pairs (out of 10 index pairs), introduced 8 new quantified variables, introduced 0 case distinctions, treesize of input 144 treesize of output 290 [2022-10-17 17:15:56,747 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-17 17:15:56,749 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-17 17:15:56,753 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-17 17:15:56,754 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-17 17:15:56,758 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-17 17:15:56,763 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-17 17:15:56,764 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-17 17:15:56,766 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-17 17:15:56,775 INFO L356 Elim1Store]: treesize reduction 72, result has 1.4 percent of original size [2022-10-17 17:15:56,775 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 13 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 6 case distinctions, treesize of input 44 treesize of output 58 [2022-10-17 17:15:56,833 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-17 17:15:56,834 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-17 17:15:56,836 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-17 17:15:56,839 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-17 17:15:56,840 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-17 17:15:56,841 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-17 17:15:56,844 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-17 17:15:56,846 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-17 17:15:56,848 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-17 17:15:56,867 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-17 17:15:56,905 INFO L356 Elim1Store]: treesize reduction 54, result has 15.6 percent of original size [2022-10-17 17:15:56,905 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 7 select indices, 7 select index equivalence classes, 17 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 5 case distinctions, treesize of input 54 treesize of output 73 [2022-10-17 17:15:57,335 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-17 17:15:57,336 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-17 17:15:57,338 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-17 17:15:57,339 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-17 17:15:57,347 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-17 17:15:57,349 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-17 17:15:57,350 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-17 17:15:57,351 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-17 17:15:57,353 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-17 17:15:57,355 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-17 17:15:57,368 INFO L356 Elim1Store]: treesize reduction 36, result has 2.7 percent of original size [2022-10-17 17:15:57,372 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 11 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 3 case distinctions, treesize of input 124 treesize of output 114 [2022-10-17 17:15:57,388 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-17 17:15:57,389 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 24 treesize of output 16 [2022-10-17 17:15:57,402 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-17 17:15:57,403 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 17 treesize of output 11 [2022-10-17 17:15:57,464 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-17 17:15:57,466 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-17 17:15:57,467 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-17 17:15:57,469 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-17 17:15:57,471 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-17 17:15:57,473 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-17 17:15:57,477 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-17 17:15:57,497 INFO L356 Elim1Store]: treesize reduction 36, result has 2.7 percent of original size [2022-10-17 17:15:57,498 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 2 stores, 5 select indices, 5 select index equivalence classes, 12 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 3 case distinctions, treesize of input 153 treesize of output 173 [2022-10-17 17:15:57,520 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-17 17:15:57,522 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 26 treesize of output 18 [2022-10-17 17:15:58,532 INFO L180 IcfgInterpreter]: Interpretation finished [2022-10-17 17:16:00,604 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '637#(and (= |ULTIMATE.start_main_~itr~0#1.offset| 0) (= |ULTIMATE.start_main_~item~0#1.offset| 0) (= |ULTIMATE.start_main_~bucket~0#1.offset| 0) (= (select (select |#memory_int| |ULTIMATE.start_main_~bcki~0#1.base|) (+ 8 |ULTIMATE.start_main_~bcki~0#1.offset|)) (select (select |#memory_int| |ULTIMATE.start_main_~item~0#1.base|) (+ 4 |ULTIMATE.start_main_~item~0#1.offset|))) (= |#NULL.offset| 0) (= |ULTIMATE.start_main_~itr~0#1.base| 0) (= |ULTIMATE.start_main_~bcki~0#1.base| 0) (<= 0 |#StackHeapBarrier|) (= |ULTIMATE.start_main_~bcki~0#1.offset| 0) (= |#NULL.base| 0))' at error location [2022-10-17 17:16:00,604 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-10-17 17:16:00,604 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-17 17:16:00,604 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 7 [2022-10-17 17:16:00,604 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [375122435] [2022-10-17 17:16:00,605 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-17 17:16:00,605 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-10-17 17:16:00,605 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-10-17 17:16:00,605 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-10-17 17:16:00,606 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=137, Unknown=1, NotChecked=24, Total=210 [2022-10-17 17:16:00,606 INFO L87 Difference]: Start difference. First operand 38 states and 45 transitions. Second operand has 8 states, 8 states have (on average 3.125) internal successors, (25), 7 states have internal predecessors, (25), 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) [2022-10-17 17:16:00,873 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-17 17:16:00,874 INFO L93 Difference]: Finished difference Result 68 states and 83 transitions. [2022-10-17 17:16:00,874 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-10-17 17:16:00,874 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 3.125) internal successors, (25), 7 states have internal predecessors, (25), 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 13 [2022-10-17 17:16:00,875 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-17 17:16:00,877 INFO L225 Difference]: With dead ends: 68 [2022-10-17 17:16:00,877 INFO L226 Difference]: Without dead ends: 66 [2022-10-17 17:16:00,878 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 26 SyntacticMatches, 3 SemanticMatches, 15 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=62, Invalid=181, Unknown=1, NotChecked=28, Total=272 [2022-10-17 17:16:00,879 INFO L413 NwaCegarLoop]: 24 mSDtfsCounter, 46 mSDsluCounter, 89 mSDsCounter, 0 mSdLazyCounter, 63 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 46 SdHoareTripleChecker+Valid, 108 SdHoareTripleChecker+Invalid, 127 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 63 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 58 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-10-17 17:16:00,879 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [46 Valid, 108 Invalid, 127 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 63 Invalid, 0 Unknown, 58 Unchecked, 0.2s Time] [2022-10-17 17:16:00,880 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66 states. [2022-10-17 17:16:00,886 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66 to 44. [2022-10-17 17:16:00,886 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 44 states, 42 states have (on average 1.2380952380952381) internal successors, (52), 43 states have internal predecessors, (52), 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) [2022-10-17 17:16:00,887 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 52 transitions. [2022-10-17 17:16:00,888 INFO L78 Accepts]: Start accepts. Automaton has 44 states and 52 transitions. Word has length 13 [2022-10-17 17:16:00,888 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-17 17:16:00,888 INFO L495 AbstractCegarLoop]: Abstraction has 44 states and 52 transitions. [2022-10-17 17:16:00,888 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 3.125) internal successors, (25), 7 states have internal predecessors, (25), 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) [2022-10-17 17:16:00,888 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 52 transitions. [2022-10-17 17:16:00,889 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2022-10-17 17:16:00,889 INFO L187 NwaCegarLoop]: Found error trace [2022-10-17 17:16:00,889 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-17 17:16:00,922 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_823e0e74-28fa-4437-bc32-e765710546de/bin/utaipan-G1rejxKTta/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-10-17 17:16:01,102 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_823e0e74-28fa-4437-bc32-e765710546de/bin/utaipan-G1rejxKTta/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-17 17:16:01,103 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-10-17 17:16:01,103 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 17:16:01,104 INFO L85 PathProgramCache]: Analyzing trace with hash -770353938, now seen corresponding path program 1 times [2022-10-17 17:16:01,104 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-10-17 17:16:01,104 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [702363157] [2022-10-17 17:16:01,104 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 17:16:01,104 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 17:16:01,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 17:16:02,095 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 17:16:02,095 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-10-17 17:16:02,096 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [702363157] [2022-10-17 17:16:02,096 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [702363157] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-17 17:16:02,096 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [295410919] [2022-10-17 17:16:02,096 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 17:16:02,096 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-17 17:16:02,096 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_823e0e74-28fa-4437-bc32-e765710546de/bin/utaipan-G1rejxKTta/z3 [2022-10-17 17:16:02,097 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_823e0e74-28fa-4437-bc32-e765710546de/bin/utaipan-G1rejxKTta/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-17 17:16:02,117 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_823e0e74-28fa-4437-bc32-e765710546de/bin/utaipan-G1rejxKTta/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-10-17 17:16:02,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 17:16:02,236 INFO L263 TraceCheckSpWp]: Trace formula consists of 248 conjuncts, 60 conjunts are in the unsatisfiable core [2022-10-17 17:16:02,258 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-17 17:16:02,287 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-17 17:16:02,288 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 32 [2022-10-17 17:16:02,296 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-17 17:16:02,297 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 36 [2022-10-17 17:16:02,326 INFO L356 Elim1Store]: treesize reduction 50, result has 25.4 percent of original size [2022-10-17 17:16:02,327 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 2 case distinctions, treesize of input 66 treesize of output 67 [2022-10-17 17:16:02,334 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-17 17:16:02,335 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-17 17:16:02,337 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-17 17:16:02,339 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 31 [2022-10-17 17:16:02,342 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 15 treesize of output 23 [2022-10-17 17:16:02,355 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 15 treesize of output 23 [2022-10-17 17:16:02,370 INFO L356 Elim1Store]: treesize reduction 19, result has 5.0 percent of original size [2022-10-17 17:16:02,370 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 72 treesize of output 56 [2022-10-17 17:16:02,484 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-17 17:16:02,485 INFO L173 IndexEqualityManager]: detected equality via solver [2022-10-17 17:16:02,494 INFO L356 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2022-10-17 17:16:02,494 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 4 case distinctions, treesize of input 75 treesize of output 59 [2022-10-17 17:16:02,505 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-17 17:16:02,506 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-17 17:16:02,507 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 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 43 treesize of output 48 [2022-10-17 17:16:02,618 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-17 17:16:02,619 INFO L173 IndexEqualityManager]: detected equality via solver [2022-10-17 17:16:02,627 INFO L356 Elim1Store]: treesize reduction 4, result has 66.7 percent of original size [2022-10-17 17:16:02,628 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 5 new quantified variables, introduced 6 case distinctions, treesize of input 96 treesize of output 52 [2022-10-17 17:16:02,640 INFO L356 Elim1Store]: treesize reduction 14, result has 17.6 percent of original size [2022-10-17 17:16:02,641 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 2 disjoint index pairs (out of 6 index pairs), introduced 5 new quantified variables, introduced 2 case distinctions, treesize of input 35 treesize of output 21 [2022-10-17 17:16:02,657 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 17:16:02,658 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-17 17:16:02,858 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 17:16:02,859 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [295410919] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-17 17:16:02,859 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [451445857] [2022-10-17 17:16:02,864 INFO L159 IcfgInterpreter]: Started Sifa with 13 locations of interest [2022-10-17 17:16:02,864 INFO L166 IcfgInterpreter]: Building call graph [2022-10-17 17:16:02,864 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-10-17 17:16:02,865 INFO L176 IcfgInterpreter]: Starting interpretation [2022-10-17 17:16:02,865 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-10-17 17:16:03,046 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-17 17:16:03,078 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-17 17:16:03,094 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-17 17:16:03,210 INFO L244 Elim1Store]: Index analysis took 214 ms [2022-10-17 17:16:03,677 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 51 treesize of output 26 [2022-10-17 17:16:03,719 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-17 17:16:03,742 INFO L173 IndexEqualityManager]: detected equality via solver [2022-10-17 17:16:03,745 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-17 17:16:03,766 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-17 17:16:04,013 INFO L356 Elim1Store]: treesize reduction 34, result has 33.3 percent of original size [2022-10-17 17:16:04,014 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 5 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 308 treesize of output 202 [2022-10-17 17:16:04,042 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-17 17:16:04,048 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-17 17:16:04,050 INFO L173 IndexEqualityManager]: detected equality via solver [2022-10-17 17:16:04,051 INFO L173 IndexEqualityManager]: detected equality via solver [2022-10-17 17:16:04,353 INFO L356 Elim1Store]: treesize reduction 82, result has 27.4 percent of original size [2022-10-17 17:16:04,353 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 5 new quantified variables, introduced 9 case distinctions, treesize of input 289 treesize of output 224 [2022-10-17 17:16:04,374 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-17 17:16:04,376 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-17 17:16:04,377 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-17 17:16:04,390 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-17 17:16:04,391 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-17 17:16:04,394 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-17 17:16:04,470 INFO L356 Elim1Store]: treesize reduction 146, result has 22.8 percent of original size [2022-10-17 17:16:04,470 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 6 select indices, 6 select index equivalence classes, 9 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 8 case distinctions, treesize of input 51 treesize of output 85 [2022-10-17 17:16:04,524 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-17 17:16:04,525 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-17 17:16:04,527 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-17 17:16:04,528 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-17 17:16:04,530 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-17 17:16:04,553 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 18 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 135 treesize of output 59 [2022-10-17 17:16:04,566 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-17 17:16:04,567 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-17 17:16:04,569 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-17 17:16:04,570 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-17 17:16:04,571 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-17 17:16:04,573 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 15 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 55 treesize of output 67 [2022-10-17 17:16:04,607 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-17 17:16:04,609 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-17 17:16:04,611 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-17 17:16:04,657 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 12 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 81 treesize of output 57 [2022-10-17 17:16:04,674 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-17 17:16:04,685 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 9 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 62 treesize of output 47 [2022-10-17 17:16:04,698 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-17 17:16:04,700 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-17 17:16:04,701 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-17 17:16:04,717 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 14 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 59 treesize of output 56 [2022-10-17 17:16:04,729 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-17 17:16:04,731 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-17 17:16:04,733 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-17 17:16:04,734 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-17 17:16:04,735 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 14 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 59 treesize of output 59 [2022-10-17 17:16:04,751 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-17 17:16:04,753 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-17 17:16:04,758 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-17 17:16:04,760 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 13 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 36 [2022-10-17 17:16:04,849 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-17 17:16:04,850 INFO L173 IndexEqualityManager]: detected equality via solver [2022-10-17 17:16:04,851 INFO L173 IndexEqualityManager]: detected equality via solver [2022-10-17 17:16:04,920 INFO L356 Elim1Store]: treesize reduction 196, result has 10.1 percent of original size [2022-10-17 17:16:04,920 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 4 disjoint index pairs (out of 21 index pairs), introduced 10 new quantified variables, introduced 21 case distinctions, treesize of input 319 treesize of output 190 [2022-10-17 17:16:04,948 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-17 17:16:04,950 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-17 17:16:04,952 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-17 17:16:04,954 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-17 17:16:04,955 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 14 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 79 treesize of output 75 [2022-10-17 17:16:04,974 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-17 17:16:04,975 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-17 17:16:04,977 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-17 17:16:04,978 INFO L173 IndexEqualityManager]: detected equality via solver [2022-10-17 17:16:05,016 INFO L356 Elim1Store]: treesize reduction 292, result has 9.6 percent of original size [2022-10-17 17:16:05,017 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 12 disjoint index pairs (out of 21 index pairs), introduced 8 new quantified variables, introduced 13 case distinctions, treesize of input 182 treesize of output 147 [2022-10-17 17:16:05,113 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-17 17:16:05,114 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-17 17:16:05,115 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-17 17:16:05,117 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 49 treesize of output 61 [2022-10-17 17:16:05,218 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-17 17:16:05,220 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-17 17:16:05,222 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-17 17:16:05,223 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-17 17:16:05,225 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 14 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 77 treesize of output 73 [2022-10-17 17:16:05,255 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-17 17:16:05,256 INFO L173 IndexEqualityManager]: detected equality via solver [2022-10-17 17:16:05,340 INFO L356 Elim1Store]: treesize reduction 256, result has 8.9 percent of original size [2022-10-17 17:16:05,341 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 5 disjoint index pairs (out of 21 index pairs), introduced 11 new quantified variables, introduced 24 case distinctions, treesize of input 324 treesize of output 196 [2022-10-17 17:16:05,371 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-17 17:16:05,373 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-17 17:16:05,375 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-17 17:16:05,416 INFO L356 Elim1Store]: treesize reduction 216, result has 10.7 percent of original size [2022-10-17 17:16:05,416 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 13 disjoint index pairs (out of 21 index pairs), introduced 9 new quantified variables, introduced 11 case distinctions, treesize of input 139 treesize of output 125 [2022-10-17 17:16:05,564 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-10-17 17:16:05,628 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 19 treesize of output 1 [2022-10-17 17:16:05,713 INFO L356 Elim1Store]: treesize reduction 48, result has 56.8 percent of original size [2022-10-17 17:16:05,714 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 5 case distinctions, treesize of input 106 treesize of output 150 [2022-10-17 17:16:05,808 INFO L356 Elim1Store]: treesize reduction 48, result has 56.8 percent of original size [2022-10-17 17:16:05,809 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 5 case distinctions, treesize of input 98 treesize of output 142 [2022-10-17 17:16:08,378 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-10-17 17:16:08,450 INFO L356 Elim1Store]: treesize reduction 18, result has 64.0 percent of original size [2022-10-17 17:16:08,451 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 30 treesize of output 47 [2022-10-17 17:16:08,502 INFO L356 Elim1Store]: treesize reduction 18, result has 64.0 percent of original size [2022-10-17 17:16:08,503 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 30 treesize of output 47 [2022-10-17 17:16:08,566 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 19 treesize of output 1 [2022-10-17 17:16:08,813 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-10-17 17:16:08,854 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 19 treesize of output 1 [2022-10-17 17:16:08,857 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 23 treesize of output 13 [2022-10-17 17:16:08,871 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 23 treesize of output 13 [2022-10-17 17:16:08,927 INFO L180 IcfgInterpreter]: Interpretation finished [2022-10-17 17:16:09,954 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '898#(and (<= 0 |#NULL.base|) (= |ULTIMATE.start_main_~bucket~0#1.offset| 0) (= (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_main_~itr~0#1.base|) |ULTIMATE.start_main_~itr~0#1.offset|) |ULTIMATE.start_main_~item~0#1.offset|) (= |ULTIMATE.start_main_~item~0#1.base| (select (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~itr~0#1.base|) |ULTIMATE.start_main_~itr~0#1.offset|)) (<= |#NULL.offset| 0) (<= |#NULL.base| 0) (not (= (select (select |#memory_int| |ULTIMATE.start_main_~bcki~0#1.base|) (+ 8 |ULTIMATE.start_main_~bcki~0#1.offset|)) (select (select |#memory_int| |ULTIMATE.start_main_~itr~0#1.base|) (+ |ULTIMATE.start_main_~itr~0#1.offset| 4)))) (or (not (= |ULTIMATE.start_main_~itr~0#1.offset| 0)) (not (= |ULTIMATE.start_main_~itr~0#1.base| 0))) (<= 0 |#NULL.offset|) (<= 0 |#StackHeapBarrier|))' at error location [2022-10-17 17:16:09,954 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-10-17 17:16:09,954 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-17 17:16:09,954 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 5, 6] total 15 [2022-10-17 17:16:09,954 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1609126385] [2022-10-17 17:16:09,954 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-17 17:16:09,955 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-10-17 17:16:09,955 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-10-17 17:16:09,955 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-10-17 17:16:09,955 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=87, Invalid=419, Unknown=0, NotChecked=0, Total=506 [2022-10-17 17:16:09,956 INFO L87 Difference]: Start difference. First operand 44 states and 52 transitions. Second operand has 16 states, 16 states have (on average 2.1875) internal successors, (35), 15 states have internal predecessors, (35), 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) [2022-10-17 17:16:10,528 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-17 17:16:10,529 INFO L93 Difference]: Finished difference Result 74 states and 87 transitions. [2022-10-17 17:16:10,531 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-10-17 17:16:10,531 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 2.1875) internal successors, (35), 15 states have internal predecessors, (35), 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 14 [2022-10-17 17:16:10,531 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-17 17:16:10,532 INFO L225 Difference]: With dead ends: 74 [2022-10-17 17:16:10,532 INFO L226 Difference]: Without dead ends: 63 [2022-10-17 17:16:10,532 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 25 SyntacticMatches, 1 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 231 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=160, Invalid=652, Unknown=0, NotChecked=0, Total=812 [2022-10-17 17:16:10,533 INFO L413 NwaCegarLoop]: 18 mSDtfsCounter, 51 mSDsluCounter, 161 mSDsCounter, 0 mSdLazyCounter, 194 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 51 SdHoareTripleChecker+Valid, 173 SdHoareTripleChecker+Invalid, 275 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 194 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 61 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-10-17 17:16:10,534 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [51 Valid, 173 Invalid, 275 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 194 Invalid, 0 Unknown, 61 Unchecked, 0.4s Time] [2022-10-17 17:16:10,534 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63 states. [2022-10-17 17:16:10,542 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63 to 49. [2022-10-17 17:16:10,542 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 49 states, 47 states have (on average 1.2127659574468086) internal successors, (57), 48 states have internal predecessors, (57), 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) [2022-10-17 17:16:10,543 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 49 states and 57 transitions. [2022-10-17 17:16:10,543 INFO L78 Accepts]: Start accepts. Automaton has 49 states and 57 transitions. Word has length 14 [2022-10-17 17:16:10,543 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-17 17:16:10,544 INFO L495 AbstractCegarLoop]: Abstraction has 49 states and 57 transitions. [2022-10-17 17:16:10,544 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 2.1875) internal successors, (35), 15 states have internal predecessors, (35), 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) [2022-10-17 17:16:10,544 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 57 transitions. [2022-10-17 17:16:10,545 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2022-10-17 17:16:10,545 INFO L187 NwaCegarLoop]: Found error trace [2022-10-17 17:16:10,545 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-17 17:16:10,581 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_823e0e74-28fa-4437-bc32-e765710546de/bin/utaipan-G1rejxKTta/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2022-10-17 17:16:10,762 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_823e0e74-28fa-4437-bc32-e765710546de/bin/utaipan-G1rejxKTta/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-17 17:16:10,762 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-10-17 17:16:10,763 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 17:16:10,763 INFO L85 PathProgramCache]: Analyzing trace with hash 1305620673, now seen corresponding path program 2 times [2022-10-17 17:16:10,763 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-10-17 17:16:10,763 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1038930577] [2022-10-17 17:16:10,763 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 17:16:10,763 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 17:16:10,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 17:16:11,663 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 17:16:11,663 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-10-17 17:16:11,663 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1038930577] [2022-10-17 17:16:11,663 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1038930577] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-17 17:16:11,663 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [421163921] [2022-10-17 17:16:11,664 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-10-17 17:16:11,664 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-17 17:16:11,664 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_823e0e74-28fa-4437-bc32-e765710546de/bin/utaipan-G1rejxKTta/z3 [2022-10-17 17:16:11,666 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_823e0e74-28fa-4437-bc32-e765710546de/bin/utaipan-G1rejxKTta/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-17 17:16:11,690 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_823e0e74-28fa-4437-bc32-e765710546de/bin/utaipan-G1rejxKTta/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-10-17 17:16:12,681 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2022-10-17 17:16:12,681 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-17 17:16:12,685 INFO L263 TraceCheckSpWp]: Trace formula consists of 249 conjuncts, 55 conjunts are in the unsatisfiable core [2022-10-17 17:16:12,697 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-17 17:16:12,721 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-17 17:16:12,722 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 26 [2022-10-17 17:16:12,730 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-17 17:16:12,731 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 32 [2022-10-17 17:16:12,763 INFO L356 Elim1Store]: treesize reduction 50, result has 25.4 percent of original size [2022-10-17 17:16:12,764 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 76 treesize of output 75 [2022-10-17 17:16:12,772 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-17 17:16:12,773 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-17 17:16:12,775 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-17 17:16:12,775 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 25 [2022-10-17 17:16:12,814 INFO L356 Elim1Store]: treesize reduction 76, result has 16.5 percent of original size [2022-10-17 17:16:12,814 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 4 case distinctions, treesize of input 51 treesize of output 46 [2022-10-17 17:16:12,823 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 15 treesize of output 23 [2022-10-17 17:16:12,931 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-17 17:16:12,945 INFO L356 Elim1Store]: treesize reduction 23, result has 17.9 percent of original size [2022-10-17 17:16:12,945 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 4 new quantified variables, introduced 2 case distinctions, treesize of input 156 treesize of output 133 [2022-10-17 17:16:12,954 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 3 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 73 treesize of output 104 [2022-10-17 17:16:12,963 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-17 17:16:12,970 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 0 case distinctions, treesize of input 72 treesize of output 71 [2022-10-17 17:16:12,991 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-17 17:16:13,010 INFO L356 Elim1Store]: treesize reduction 12, result has 67.6 percent of original size [2022-10-17 17:16:13,010 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 33 treesize of output 37 [2022-10-17 17:16:13,223 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 15 treesize of output 7 [2022-10-17 17:16:13,278 INFO L356 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2022-10-17 17:16:13,278 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 63 treesize of output 26 [2022-10-17 17:16:13,288 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 17:16:13,288 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-17 17:16:13,370 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-10-17 17:16:13,371 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 3 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 93 treesize of output 130 [2022-10-17 17:16:13,463 WARN L833 $PredicateComparison]: unable to prove that (forall ((|v_ULTIMATE.start_main_~item~0#1.base_37| Int) (v_ArrVal_872 (Array Int Int)) (v_ArrVal_873 (Array Int Int))) (or (not (= (select (let ((.cse0 (store |c_#memory_$Pointer$.base| |v_ULTIMATE.start_main_~item~0#1.base_37| v_ArrVal_872))) (select .cse0 (select (select .cse0 |c_ULTIMATE.start_main_~bucket~0#1.base|) |c_ULTIMATE.start_main_~bucket~0#1.offset|))) (select (select (store |c_#memory_$Pointer$.offset| |v_ULTIMATE.start_main_~item~0#1.base_37| v_ArrVal_873) |c_ULTIMATE.start_main_~bucket~0#1.base|) |c_ULTIMATE.start_main_~bucket~0#1.offset|)) 0)) (not (= (select |c_#valid| |v_ULTIMATE.start_main_~item~0#1.base_37|) 0)))) is different from false [2022-10-17 17:16:13,471 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 17:16:13,471 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [421163921] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-17 17:16:13,472 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [678070834] [2022-10-17 17:16:13,476 INFO L159 IcfgInterpreter]: Started Sifa with 12 locations of interest [2022-10-17 17:16:13,476 INFO L166 IcfgInterpreter]: Building call graph [2022-10-17 17:16:13,476 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-10-17 17:16:13,477 INFO L176 IcfgInterpreter]: Starting interpretation [2022-10-17 17:16:13,477 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-10-17 17:16:13,651 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-17 17:16:13,707 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-17 17:16:13,721 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-17 17:16:13,769 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-17 17:16:13,804 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-17 17:16:13,848 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-17 17:16:13,895 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-17 17:16:13,910 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-17 17:16:13,955 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-17 17:16:13,955 INFO L244 Elim1Store]: Index analysis took 319 ms [2022-10-17 17:16:13,960 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 13 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 32 [2022-10-17 17:16:14,126 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-17 17:16:14,162 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-17 17:16:14,197 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-17 17:16:14,295 INFO L244 Elim1Store]: Index analysis took 211 ms [2022-10-17 17:16:14,819 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 51 treesize of output 26 [2022-10-17 17:16:14,850 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-17 17:16:14,872 INFO L173 IndexEqualityManager]: detected equality via solver [2022-10-17 17:16:14,876 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-17 17:16:14,900 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-17 17:16:15,221 INFO L356 Elim1Store]: treesize reduction 34, result has 33.3 percent of original size [2022-10-17 17:16:15,221 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 5 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 301 treesize of output 195 [2022-10-17 17:16:15,238 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-17 17:16:15,242 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-17 17:16:15,243 INFO L173 IndexEqualityManager]: detected equality via solver [2022-10-17 17:16:15,244 INFO L173 IndexEqualityManager]: detected equality via solver [2022-10-17 17:16:15,493 INFO L356 Elim1Store]: treesize reduction 82, result has 27.4 percent of original size [2022-10-17 17:16:15,494 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 5 new quantified variables, introduced 9 case distinctions, treesize of input 282 treesize of output 217 [2022-10-17 17:16:15,523 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-17 17:16:15,525 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-17 17:16:15,526 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-17 17:16:15,528 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-17 17:16:15,529 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-17 17:16:15,551 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 12 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 135 treesize of output 59 [2022-10-17 17:16:15,564 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-17 17:16:15,565 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-17 17:16:15,566 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-17 17:16:15,567 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-17 17:16:15,568 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-17 17:16:15,569 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 9 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 55 treesize of output 67 [2022-10-17 17:16:15,601 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-17 17:16:15,603 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-17 17:16:15,605 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-17 17:16:15,607 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-17 17:16:15,609 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-17 17:16:15,661 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 10 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 81 treesize of output 57 [2022-10-17 17:16:15,679 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-17 17:16:15,680 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-17 17:16:15,682 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-17 17:16:15,693 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 7 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 62 treesize of output 47 [2022-10-17 17:16:15,704 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-17 17:16:15,705 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-17 17:16:15,707 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-17 17:16:15,708 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-17 17:16:15,710 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-17 17:16:15,711 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-17 17:16:15,724 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 11 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 59 treesize of output 56 [2022-10-17 17:16:15,735 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-17 17:16:15,736 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-17 17:16:15,737 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-17 17:16:15,738 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-17 17:16:15,739 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-17 17:16:15,741 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-17 17:16:15,742 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-17 17:16:15,743 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 11 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 59 treesize of output 59 [2022-10-17 17:16:15,755 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-17 17:16:15,756 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-17 17:16:15,758 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-17 17:16:15,764 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-17 17:16:15,766 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-17 17:16:15,767 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-17 17:16:15,768 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-17 17:16:15,769 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-17 17:16:15,771 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-17 17:16:15,772 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-17 17:16:15,773 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-17 17:16:15,774 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-17 17:16:15,776 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 51 treesize of output 53 [2022-10-17 17:16:15,859 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-17 17:16:15,861 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-17 17:16:15,862 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-17 17:16:15,864 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-17 17:16:15,864 INFO L173 IndexEqualityManager]: detected equality via solver [2022-10-17 17:16:15,865 INFO L173 IndexEqualityManager]: detected equality via solver [2022-10-17 17:16:15,978 INFO L356 Elim1Store]: treesize reduction 124, result has 19.0 percent of original size [2022-10-17 17:16:15,978 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 5 disjoint index pairs (out of 15 index pairs), introduced 9 new quantified variables, introduced 18 case distinctions, treesize of input 410 treesize of output 303 [2022-10-17 17:16:16,018 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-17 17:16:16,019 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-17 17:16:16,020 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-17 17:16:16,021 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-17 17:16:16,022 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-17 17:16:16,023 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-17 17:16:16,024 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-17 17:16:16,025 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-17 17:16:16,026 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-17 17:16:16,027 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-17 17:16:16,028 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-17 17:16:16,031 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 3 stores, 5 select indices, 5 select index equivalence classes, 18 disjoint index pairs (out of 10 index pairs), introduced 8 new quantified variables, introduced 0 case distinctions, treesize of input 201 treesize of output 347 [2022-10-17 17:16:16,074 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-17 17:16:16,075 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-17 17:16:16,077 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-17 17:16:16,078 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-17 17:16:16,079 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-17 17:16:16,080 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-17 17:16:16,082 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-17 17:16:16,083 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-17 17:16:16,084 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-17 17:16:16,087 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 13 disjoint index pairs (out of 15 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 181 treesize of output 164 [2022-10-17 17:16:16,149 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-17 17:16:16,151 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-17 17:16:16,154 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-17 17:16:16,155 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-17 17:16:16,157 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-17 17:16:16,160 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-17 17:16:16,161 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-17 17:16:16,162 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-17 17:16:16,169 INFO L356 Elim1Store]: treesize reduction 72, result has 1.4 percent of original size [2022-10-17 17:16:16,169 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 13 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 6 case distinctions, treesize of input 44 treesize of output 58 [2022-10-17 17:16:16,206 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-17 17:16:16,207 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-17 17:16:16,208 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-17 17:16:16,211 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-17 17:16:16,212 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-17 17:16:16,213 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-17 17:16:16,215 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-17 17:16:16,216 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-17 17:16:16,218 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-17 17:16:16,220 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-17 17:16:16,241 INFO L356 Elim1Store]: treesize reduction 54, result has 15.6 percent of original size [2022-10-17 17:16:16,241 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 7 select indices, 7 select index equivalence classes, 17 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 5 case distinctions, treesize of input 54 treesize of output 73