./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/uthash-2.0.2/uthash_OAT_test5-2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 38b53e6a Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41485339-15d2-4594-9a60-19344cf885c6/bin/utaipan-ByfvJB40ur/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41485339-15d2-4594-9a60-19344cf885c6/bin/utaipan-ByfvJB40ur/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41485339-15d2-4594-9a60-19344cf885c6/bin/utaipan-ByfvJB40ur/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41485339-15d2-4594-9a60-19344cf885c6/bin/utaipan-ByfvJB40ur/config/TaipanReach.xml -i ../../sv-benchmarks/c/uthash-2.0.2/uthash_OAT_test5-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41485339-15d2-4594-9a60-19344cf885c6/bin/utaipan-ByfvJB40ur/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41485339-15d2-4594-9a60-19344cf885c6/bin/utaipan-ByfvJB40ur --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 ad1bbae792ec9c8e2e546dc04f3672720af98ce14b9bd37d0d7647e79ce45565 --- 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-38b53e6 [2022-11-25 22:17:43,542 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-25 22:17:43,543 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-25 22:17:43,570 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-25 22:17:43,573 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-25 22:17:43,585 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-25 22:17:43,588 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-25 22:17:43,592 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-25 22:17:43,594 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-25 22:17:43,600 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-25 22:17:43,602 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-25 22:17:43,609 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-25 22:17:43,609 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-25 22:17:43,614 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-25 22:17:43,617 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-25 22:17:43,620 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-25 22:17:43,620 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-25 22:17:43,621 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-25 22:17:43,623 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-25 22:17:43,624 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-25 22:17:43,626 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-25 22:17:43,631 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-25 22:17:43,632 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-25 22:17:43,633 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-25 22:17:43,646 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-25 22:17:43,646 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-25 22:17:43,647 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-25 22:17:43,648 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-25 22:17:43,648 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-25 22:17:43,649 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-25 22:17:43,649 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-25 22:17:43,650 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-25 22:17:43,651 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-25 22:17:43,652 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-25 22:17:43,653 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-25 22:17:43,653 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-25 22:17:43,658 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-25 22:17:43,660 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-25 22:17:43,660 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-25 22:17:43,661 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-25 22:17:43,662 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-25 22:17:43,663 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41485339-15d2-4594-9a60-19344cf885c6/bin/utaipan-ByfvJB40ur/config/svcomp-Reach-32bit-Taipan_Default.epf [2022-11-25 22:17:43,703 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-25 22:17:43,703 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-25 22:17:43,704 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-25 22:17:43,704 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-25 22:17:43,705 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-25 22:17:43,706 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-25 22:17:43,706 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-25 22:17:43,706 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-25 22:17:43,707 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-25 22:17:43,707 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-25 22:17:43,708 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-25 22:17:43,708 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-25 22:17:43,709 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-25 22:17:43,709 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-25 22:17:43,709 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-25 22:17:43,710 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-25 22:17:43,710 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-25 22:17:43,710 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-25 22:17:43,711 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-25 22:17:43,711 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-25 22:17:43,712 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-25 22:17:43,712 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-25 22:17:43,712 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-25 22:17:43,713 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-25 22:17:43,713 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-25 22:17:43,713 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-25 22:17:43,713 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-25 22:17:43,714 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-25 22:17:43,714 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-25 22:17:43,714 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-25 22:17:43,715 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-25 22:17:43,715 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-25 22:17:43,715 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 22:17:43,716 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-25 22:17:43,716 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-25 22:17:43,717 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-25 22:17:43,717 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-25 22:17:43,717 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-25 22:17:43,718 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-25 22:17:43,718 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-25 22:17:43,718 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-25 22:17:43,719 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_41485339-15d2-4594-9a60-19344cf885c6/bin/utaipan-ByfvJB40ur/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41485339-15d2-4594-9a60-19344cf885c6/bin/utaipan-ByfvJB40ur Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ad1bbae792ec9c8e2e546dc04f3672720af98ce14b9bd37d0d7647e79ce45565 [2022-11-25 22:17:43,983 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-25 22:17:44,005 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-25 22:17:44,008 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-25 22:17:44,009 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-25 22:17:44,010 INFO L275 PluginConnector]: CDTParser initialized [2022-11-25 22:17:44,011 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41485339-15d2-4594-9a60-19344cf885c6/bin/utaipan-ByfvJB40ur/../../sv-benchmarks/c/uthash-2.0.2/uthash_OAT_test5-2.i [2022-11-25 22:17:47,144 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-25 22:17:47,635 INFO L351 CDTParser]: Found 1 translation units. [2022-11-25 22:17:47,638 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41485339-15d2-4594-9a60-19344cf885c6/sv-benchmarks/c/uthash-2.0.2/uthash_OAT_test5-2.i [2022-11-25 22:17:47,655 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41485339-15d2-4594-9a60-19344cf885c6/bin/utaipan-ByfvJB40ur/data/476644f77/0c0ec55eebc74aa7a7b1ba63a6797aff/FLAG7c0fb51d1 [2022-11-25 22:17:47,671 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41485339-15d2-4594-9a60-19344cf885c6/bin/utaipan-ByfvJB40ur/data/476644f77/0c0ec55eebc74aa7a7b1ba63a6797aff [2022-11-25 22:17:47,674 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-25 22:17:47,675 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-25 22:17:47,677 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-25 22:17:47,677 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-25 22:17:47,681 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-25 22:17:47,682 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 10:17:47" (1/1) ... [2022-11-25 22:17:47,684 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@714c1441 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:17:47, skipping insertion in model container [2022-11-25 22:17:47,684 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 10:17:47" (1/1) ... [2022-11-25 22:17:47,692 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-25 22:17:47,770 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-25 22:17:48,228 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41485339-15d2-4594-9a60-19344cf885c6/sv-benchmarks/c/uthash-2.0.2/uthash_OAT_test5-2.i[33021,33034] [2022-11-25 22:17:48,392 WARN L623 FunctionHandler]: Unknown extern function memcmp [2022-11-25 22:17:48,395 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41485339-15d2-4594-9a60-19344cf885c6/sv-benchmarks/c/uthash-2.0.2/uthash_OAT_test5-2.i[49681,49694] [2022-11-25 22:17:48,410 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 22:17:48,421 INFO L203 MainTranslator]: Completed pre-run [2022-11-25 22:17:48,451 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41485339-15d2-4594-9a60-19344cf885c6/sv-benchmarks/c/uthash-2.0.2/uthash_OAT_test5-2.i[33021,33034] [2022-11-25 22:17:48,517 WARN L623 FunctionHandler]: Unknown extern function memcmp [2022-11-25 22:17:48,525 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41485339-15d2-4594-9a60-19344cf885c6/sv-benchmarks/c/uthash-2.0.2/uthash_OAT_test5-2.i[49681,49694] [2022-11-25 22:17:48,535 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 22:17:48,580 INFO L208 MainTranslator]: Completed translation [2022-11-25 22:17:48,581 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:17:48 WrapperNode [2022-11-25 22:17:48,581 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-25 22:17:48,582 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-25 22:17:48,582 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-25 22:17:48,582 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-25 22:17:48,590 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:17:48" (1/1) ... [2022-11-25 22:17:48,663 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:17:48" (1/1) ... [2022-11-25 22:17:48,773 INFO L138 Inliner]: procedures = 177, calls = 439, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 1549 [2022-11-25 22:17:48,773 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-25 22:17:48,774 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-25 22:17:48,774 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-25 22:17:48,775 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-25 22:17:48,785 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:17:48" (1/1) ... [2022-11-25 22:17:48,785 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:17:48" (1/1) ... [2022-11-25 22:17:48,822 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:17:48" (1/1) ... [2022-11-25 22:17:48,823 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:17:48" (1/1) ... [2022-11-25 22:17:48,898 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:17:48" (1/1) ... [2022-11-25 22:17:48,920 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:17:48" (1/1) ... [2022-11-25 22:17:48,924 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:17:48" (1/1) ... [2022-11-25 22:17:48,930 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:17:48" (1/1) ... [2022-11-25 22:17:48,939 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-25 22:17:48,940 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-25 22:17:48,940 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-25 22:17:48,940 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-25 22:17:48,941 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:17:48" (1/1) ... [2022-11-25 22:17:48,947 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 22:17:48,958 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41485339-15d2-4594-9a60-19344cf885c6/bin/utaipan-ByfvJB40ur/z3 [2022-11-25 22:17:48,972 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41485339-15d2-4594-9a60-19344cf885c6/bin/utaipan-ByfvJB40ur/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-25 22:17:49,003 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41485339-15d2-4594-9a60-19344cf885c6/bin/utaipan-ByfvJB40ur/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-25 22:17:49,029 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-25 22:17:49,029 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2022-11-25 22:17:49,029 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2022-11-25 22:17:49,029 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-25 22:17:49,030 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-11-25 22:17:49,030 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-11-25 22:17:49,030 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-25 22:17:49,030 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-25 22:17:49,030 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-25 22:17:49,030 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-25 22:17:49,031 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2022-11-25 22:17:49,031 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-25 22:17:49,032 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-25 22:17:49,032 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-25 22:17:49,032 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-25 22:17:49,032 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-25 22:17:49,364 INFO L235 CfgBuilder]: Building ICFG [2022-11-25 22:17:49,366 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-25 22:17:51,920 INFO L276 CfgBuilder]: Performing block encoding [2022-11-25 22:17:52,628 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-25 22:17:52,628 INFO L300 CfgBuilder]: Removed 92 assume(true) statements. [2022-11-25 22:17:52,632 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 10:17:52 BoogieIcfgContainer [2022-11-25 22:17:52,632 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-25 22:17:52,636 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-25 22:17:52,636 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-25 22:17:52,640 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-25 22:17:52,640 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.11 10:17:47" (1/3) ... [2022-11-25 22:17:52,643 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@67bb41cb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 10:17:52, skipping insertion in model container [2022-11-25 22:17:52,643 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:17:48" (2/3) ... [2022-11-25 22:17:52,644 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@67bb41cb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 10:17:52, skipping insertion in model container [2022-11-25 22:17:52,645 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 10:17:52" (3/3) ... [2022-11-25 22:17:52,647 INFO L112 eAbstractionObserver]: Analyzing ICFG uthash_OAT_test5-2.i [2022-11-25 22:17:52,669 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-25 22:17:52,670 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-11-25 22:17:52,730 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-25 22:17:52,738 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;@2ed1822a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-25 22:17:52,738 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-11-25 22:17:52,743 INFO L276 IsEmpty]: Start isEmpty. Operand has 165 states, 149 states have (on average 1.8120805369127517) internal successors, (270), 156 states have internal predecessors, (270), 11 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (11), 7 states have call predecessors, (11), 11 states have call successors, (11) [2022-11-25 22:17:52,752 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-11-25 22:17:52,753 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 22:17:52,753 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2022-11-25 22:17:52,754 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 22:17:52,760 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 22:17:52,761 INFO L85 PathProgramCache]: Analyzing trace with hash 1765117460, now seen corresponding path program 1 times [2022-11-25 22:17:52,772 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 22:17:52,773 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2039968642] [2022-11-25 22:17:52,773 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:17:52,774 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 22:17:52,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 22:17:52,926 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 22:17:52,927 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2039968642] [2022-11-25 22:17:52,927 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unsupported non-linear arithmetic [2022-11-25 22:17:52,928 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [294121831] [2022-11-25 22:17:52,928 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:17:52,928 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 22:17:52,928 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41485339-15d2-4594-9a60-19344cf885c6/bin/utaipan-ByfvJB40ur/z3 [2022-11-25 22:17:52,932 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41485339-15d2-4594-9a60-19344cf885c6/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 22:17:52,958 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41485339-15d2-4594-9a60-19344cf885c6/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-25 22:17:53,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 22:17:53,242 INFO L263 TraceCheckSpWp]: Trace formula consists of 67 conjuncts, 1 conjunts are in the unsatisfiable core [2022-11-25 22:17:53,249 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 22:17:53,272 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 22:17:53,272 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-25 22:17:53,273 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [294121831] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 22:17:53,274 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 22:17:53,274 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-25 22:17:53,277 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [374453642] [2022-11-25 22:17:53,278 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 22:17:53,284 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-25 22:17:53,284 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 22:17:53,341 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-25 22:17:53,342 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-25 22:17:53,345 INFO L87 Difference]: Start difference. First operand has 165 states, 149 states have (on average 1.8120805369127517) internal successors, (270), 156 states have internal predecessors, (270), 11 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (11), 7 states have call predecessors, (11), 11 states have call successors, (11) Second operand has 2 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 22:17:54,270 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 22:17:54,271 INFO L93 Difference]: Finished difference Result 329 states and 588 transitions. [2022-11-25 22:17:54,275 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-25 22:17:54,276 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 6 [2022-11-25 22:17:54,276 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 22:17:54,288 INFO L225 Difference]: With dead ends: 329 [2022-11-25 22:17:54,288 INFO L226 Difference]: Without dead ends: 150 [2022-11-25 22:17:54,292 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-25 22:17:54,296 INFO L413 NwaCegarLoop]: 176 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 176 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-11-25 22:17:54,297 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 176 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-11-25 22:17:54,315 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 150 states. [2022-11-25 22:17:54,345 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 150 to 150. [2022-11-25 22:17:54,347 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 150 states, 135 states have (on average 1.1925925925925926) internal successors, (161), 141 states have internal predecessors, (161), 11 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (11), 7 states have call predecessors, (11), 11 states have call successors, (11) [2022-11-25 22:17:54,349 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 150 states to 150 states and 183 transitions. [2022-11-25 22:17:54,351 INFO L78 Accepts]: Start accepts. Automaton has 150 states and 183 transitions. Word has length 6 [2022-11-25 22:17:54,351 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 22:17:54,351 INFO L495 AbstractCegarLoop]: Abstraction has 150 states and 183 transitions. [2022-11-25 22:17:54,352 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 22:17:54,352 INFO L276 IsEmpty]: Start isEmpty. Operand 150 states and 183 transitions. [2022-11-25 22:17:54,353 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2022-11-25 22:17:54,353 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 22:17:54,354 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 22:17:54,360 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41485339-15d2-4594-9a60-19344cf885c6/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2022-11-25 22:17:54,560 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41485339-15d2-4594-9a60-19344cf885c6/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 22:17:54,561 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 22:17:54,561 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 22:17:54,562 INFO L85 PathProgramCache]: Analyzing trace with hash -1566679301, now seen corresponding path program 1 times [2022-11-25 22:17:54,562 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 22:17:54,563 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1257737690] [2022-11-25 22:17:54,563 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:17:54,564 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 22:17:54,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 22:17:54,636 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 22:17:54,637 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1257737690] [2022-11-25 22:17:54,637 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unsupported non-linear arithmetic [2022-11-25 22:17:54,640 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1283330971] [2022-11-25 22:17:54,641 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:17:54,641 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 22:17:54,641 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41485339-15d2-4594-9a60-19344cf885c6/bin/utaipan-ByfvJB40ur/z3 [2022-11-25 22:17:54,649 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41485339-15d2-4594-9a60-19344cf885c6/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 22:17:54,677 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41485339-15d2-4594-9a60-19344cf885c6/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-25 22:17:54,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 22:17:54,956 INFO L263 TraceCheckSpWp]: Trace formula consists of 122 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-25 22:17:54,959 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 22:17:54,979 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 22:17:54,979 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-25 22:17:54,979 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1283330971] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 22:17:54,979 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 22:17:54,980 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-25 22:17:54,980 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2765290] [2022-11-25 22:17:54,980 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 22:17:54,981 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-25 22:17:54,981 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 22:17:54,982 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 22:17:54,982 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 22:17:54,982 INFO L87 Difference]: Start difference. First operand 150 states and 183 transitions. Second operand has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 2 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 22:17:56,258 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 22:17:56,258 INFO L93 Difference]: Finished difference Result 342 states and 425 transitions. [2022-11-25 22:17:56,262 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 22:17:56,262 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 2 states have internal predecessors, (17), 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 17 [2022-11-25 22:17:56,263 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 22:17:56,265 INFO L225 Difference]: With dead ends: 342 [2022-11-25 22:17:56,265 INFO L226 Difference]: Without dead ends: 290 [2022-11-25 22:17:56,266 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 22:17:56,267 INFO L413 NwaCegarLoop]: 173 mSDtfsCounter, 149 mSDsluCounter, 162 mSDsCounter, 0 mSdLazyCounter, 40 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 160 SdHoareTripleChecker+Valid, 335 SdHoareTripleChecker+Invalid, 41 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 40 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2022-11-25 22:17:56,267 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [160 Valid, 335 Invalid, 41 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 40 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2022-11-25 22:17:56,269 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 290 states. [2022-11-25 22:17:56,286 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 290 to 151. [2022-11-25 22:17:56,287 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 151 states, 136 states have (on average 1.1911764705882353) internal successors, (162), 142 states have internal predecessors, (162), 11 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (11), 7 states have call predecessors, (11), 11 states have call successors, (11) [2022-11-25 22:17:56,289 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 151 states to 151 states and 184 transitions. [2022-11-25 22:17:56,289 INFO L78 Accepts]: Start accepts. Automaton has 151 states and 184 transitions. Word has length 17 [2022-11-25 22:17:56,289 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 22:17:56,290 INFO L495 AbstractCegarLoop]: Abstraction has 151 states and 184 transitions. [2022-11-25 22:17:56,290 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 2 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 22:17:56,290 INFO L276 IsEmpty]: Start isEmpty. Operand 151 states and 184 transitions. [2022-11-25 22:17:56,292 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2022-11-25 22:17:56,292 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 22:17:56,293 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 22:17:56,300 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41485339-15d2-4594-9a60-19344cf885c6/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-11-25 22:17:56,500 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41485339-15d2-4594-9a60-19344cf885c6/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 22:17:56,500 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 22:17:56,500 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 22:17:56,501 INFO L85 PathProgramCache]: Analyzing trace with hash -867190139, now seen corresponding path program 1 times [2022-11-25 22:17:56,501 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 22:17:56,501 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1926155499] [2022-11-25 22:17:56,501 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:17:56,501 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 22:17:56,819 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-25 22:17:56,820 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [636431932] [2022-11-25 22:17:56,820 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:17:56,820 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 22:17:56,821 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41485339-15d2-4594-9a60-19344cf885c6/bin/utaipan-ByfvJB40ur/z3 [2022-11-25 22:17:56,825 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41485339-15d2-4594-9a60-19344cf885c6/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 22:17:56,830 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41485339-15d2-4594-9a60-19344cf885c6/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-25 22:17:58,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 22:17:58,329 INFO L263 TraceCheckSpWp]: Trace formula consists of 3112 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-25 22:17:58,337 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 22:17:58,485 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 22:17:58,486 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-25 22:17:58,589 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 22:17:58,591 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 22:17:58,591 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1926155499] [2022-11-25 22:17:58,592 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-25 22:17:58,592 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [636431932] [2022-11-25 22:17:58,594 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [636431932] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-25 22:17:58,594 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [500361601] [2022-11-25 22:17:58,622 INFO L159 IcfgInterpreter]: Started Sifa with 61 locations of interest [2022-11-25 22:17:58,622 INFO L166 IcfgInterpreter]: Building call graph [2022-11-25 22:17:58,627 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-25 22:17:58,633 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-25 22:17:58,633 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-25 22:17:58,864 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:17:58,889 INFO L321 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-11-25 22:17:58,890 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 17 treesize of output 26 [2022-11-25 22:17:58,910 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:17:58,932 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-11-25 22:17:58,933 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 5 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 2 case distinctions, treesize of input 27 treesize of output 37 [2022-11-25 22:17:58,991 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:17:58,996 INFO L350 Elim1Store]: Elim1 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 0 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 7 [2022-11-25 22:17:59,006 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:17:59,008 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:17:59,049 INFO L321 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2022-11-25 22:17:59,049 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 8 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 4 case distinctions, treesize of input 32 treesize of output 49 [2022-11-25 22:17:59,070 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:17:59,072 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:17:59,076 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 8 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 30 [2022-11-25 22:17:59,092 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:17:59,094 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 22:17:59,100 INFO L350 Elim1Store]: Elim1 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 2 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 39 [2022-11-25 22:17:59,127 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:17:59,128 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 7 [2022-11-25 22:17:59,688 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:17:59,690 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:17:59,691 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:17:59,693 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:17:59,694 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:17:59,696 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:17:59,697 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:17:59,698 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:17:59,700 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:17:59,701 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:17:59,703 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:17:59,705 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:17:59,707 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:17:59,726 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 25 disjoint index pairs (out of 28 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 9896990 treesize of output 5376278 [2022-11-25 22:17:59,779 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:17:59,780 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:17:59,782 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:17:59,783 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:17:59,785 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:17:59,787 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:17:59,788 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:17:59,789 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:17:59,791 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:17:59,792 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:17:59,794 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:17:59,795 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:17:59,797 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:17:59,801 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 25 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 0 case distinctions, treesize of input 9075036 treesize of output 5376290 [2022-11-25 22:17:59,873 INFO L350 Elim1Store]: Elim1 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 29 treesize of output 19 [2022-11-25 22:17:59,901 INFO L350 Elim1Store]: Elim1 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 29 treesize of output 19 [2022-11-25 22:18:00,454 INFO L350 Elim1Store]: Elim1 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 29 treesize of output 19 [2022-11-25 22:18:00,473 INFO L350 Elim1Store]: Elim1 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 29 treesize of output 19 [2022-11-25 22:18:00,495 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:18:00,497 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:18:00,499 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:18:00,500 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:18:00,502 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:18:00,508 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:18:00,510 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:18:00,511 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:18:00,513 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:18:00,514 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:18:00,515 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:18:00,518 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:18:00,519 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:18:00,544 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 25 disjoint index pairs (out of 28 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 9896990 treesize of output 5376278 [2022-11-25 22:18:00,581 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:18:00,582 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:18:00,583 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:18:00,584 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:18:00,585 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:18:00,587 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:18:00,588 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:18:00,589 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:18:00,590 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:18:00,591 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:18:00,592 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:18:00,593 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:18:00,595 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:18:00,598 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 25 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 0 case distinctions, treesize of input 9075036 treesize of output 5376290 [2022-11-25 22:18:00,651 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-25 22:18:09,206 WARN L233 SmtUtils]: Spent 5.41s on a formula simplification. DAG size of input: 235 DAG size of output: 220 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-25 22:18:17,179 WARN L233 SmtUtils]: Spent 5.86s on a formula simplification. DAG size of input: 251 DAG size of output: 236 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-25 22:18:17,186 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [500361601] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 22:18:17,186 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-11-25 22:18:17,186 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [3, 3] total 11 [2022-11-25 22:18:17,187 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1500664466] [2022-11-25 22:18:17,187 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 22:18:17,188 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-25 22:18:17,188 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 22:18:17,189 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-25 22:18:17,189 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=69, Unknown=2, NotChecked=0, Total=132 [2022-11-25 22:18:17,189 INFO L87 Difference]: Start difference. First operand 151 states and 184 transitions. Second operand has 8 states, 8 states have (on average 7.625) internal successors, (61), 7 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 22:18:20,589 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2022-11-25 22:18:22,685 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2022-11-25 22:18:24,695 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2022-11-25 22:18:30,424 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.79s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-25 22:18:32,433 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-25 22:18:32,446 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 22:18:32,446 INFO L93 Difference]: Finished difference Result 313 states and 382 transitions. [2022-11-25 22:18:32,447 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-25 22:18:32,447 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 7.625) internal successors, (61), 7 states have internal predecessors, (61), 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 61 [2022-11-25 22:18:32,447 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 22:18:32,448 INFO L225 Difference]: With dead ends: 313 [2022-11-25 22:18:32,449 INFO L226 Difference]: Without dead ends: 164 [2022-11-25 22:18:32,450 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 182 GetRequests, 171 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 17.7s TimeCoverageRelationStatistics Valid=71, Invalid=83, Unknown=2, NotChecked=0, Total=156 [2022-11-25 22:18:32,451 INFO L413 NwaCegarLoop]: 160 mSDtfsCounter, 1 mSDsluCounter, 242 mSDsCounter, 0 mSdLazyCounter, 183 mSolverCounterSat, 4 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 13.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 402 SdHoareTripleChecker+Invalid, 191 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 183 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 14.1s IncrementalHoareTripleChecker+Time [2022-11-25 22:18:32,451 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 402 Invalid, 191 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 183 Invalid, 4 Unknown, 0 Unchecked, 14.1s Time] [2022-11-25 22:18:32,452 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 164 states. [2022-11-25 22:18:32,472 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 164 to 161. [2022-11-25 22:18:32,473 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 161 states, 146 states have (on average 1.178082191780822) internal successors, (172), 152 states have internal predecessors, (172), 11 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (11), 7 states have call predecessors, (11), 11 states have call successors, (11) [2022-11-25 22:18:32,474 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 161 states to 161 states and 194 transitions. [2022-11-25 22:18:32,475 INFO L78 Accepts]: Start accepts. Automaton has 161 states and 194 transitions. Word has length 61 [2022-11-25 22:18:32,475 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 22:18:32,475 INFO L495 AbstractCegarLoop]: Abstraction has 161 states and 194 transitions. [2022-11-25 22:18:32,475 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 7.625) internal successors, (61), 7 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 22:18:32,476 INFO L276 IsEmpty]: Start isEmpty. Operand 161 states and 194 transitions. [2022-11-25 22:18:32,478 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2022-11-25 22:18:32,478 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 22:18:32,478 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 22:18:32,499 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41485339-15d2-4594-9a60-19344cf885c6/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-11-25 22:18:32,692 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41485339-15d2-4594-9a60-19344cf885c6/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 22:18:32,693 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 22:18:32,693 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 22:18:32,693 INFO L85 PathProgramCache]: Analyzing trace with hash -1835922908, now seen corresponding path program 1 times [2022-11-25 22:18:32,693 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 22:18:32,693 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [31512000] [2022-11-25 22:18:32,694 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:18:32,694 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 22:18:32,914 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-25 22:18:32,914 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [723019170] [2022-11-25 22:18:32,915 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:18:32,915 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 22:18:32,915 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41485339-15d2-4594-9a60-19344cf885c6/bin/utaipan-ByfvJB40ur/z3 [2022-11-25 22:18:32,916 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41485339-15d2-4594-9a60-19344cf885c6/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 22:18:32,927 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41485339-15d2-4594-9a60-19344cf885c6/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-11-25 22:18:34,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 22:18:34,163 INFO L263 TraceCheckSpWp]: Trace formula consists of 2249 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-25 22:18:34,170 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 22:18:34,311 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-11-25 22:18:34,312 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-25 22:18:34,461 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-11-25 22:18:34,461 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 22:18:34,462 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [31512000] [2022-11-25 22:18:34,462 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-25 22:18:34,462 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [723019170] [2022-11-25 22:18:34,462 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [723019170] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-25 22:18:34,462 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1739400717] [2022-11-25 22:18:34,468 INFO L159 IcfgInterpreter]: Started Sifa with 71 locations of interest [2022-11-25 22:18:34,469 INFO L166 IcfgInterpreter]: Building call graph [2022-11-25 22:18:34,469 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-25 22:18:34,470 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-25 22:18:34,470 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-25 22:18:34,583 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:18:34,655 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-11-25 22:18:34,656 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 5 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 2 case distinctions, treesize of input 27 treesize of output 37 [2022-11-25 22:18:34,668 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:18:34,669 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 22 [2022-11-25 22:18:34,697 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:18:34,700 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:18:34,733 INFO L321 Elim1Store]: treesize reduction 20, result has 48.7 percent of original size [2022-11-25 22:18:34,734 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 22 treesize of output 38 [2022-11-25 22:18:34,757 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:18:34,759 INFO L350 Elim1Store]: Elim1 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 0 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 7 [2022-11-25 22:18:34,770 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:18:34,772 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:18:34,814 INFO L321 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2022-11-25 22:18:34,815 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 8 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 4 case distinctions, treesize of input 32 treesize of output 49 [2022-11-25 22:18:34,838 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:18:34,839 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 7 [2022-11-25 22:18:34,850 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:18:34,851 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 22:18:34,852 INFO L350 Elim1Store]: Elim1 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 2 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 39 [2022-11-25 22:18:35,221 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:18:35,223 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:18:35,224 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:18:35,226 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:18:35,227 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:18:35,229 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:18:35,230 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:18:35,231 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:18:35,233 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:18:35,234 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:18:35,235 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:18:35,237 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:18:35,238 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:18:35,254 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 25 disjoint index pairs (out of 28 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 9896990 treesize of output 5376278 [2022-11-25 22:18:35,285 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:18:35,286 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:18:35,288 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:18:35,289 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:18:35,290 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:18:35,292 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:18:35,293 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:18:35,294 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:18:35,296 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:18:35,297 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:18:35,298 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:18:35,299 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:18:35,301 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:18:35,304 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 25 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 0 case distinctions, treesize of input 9896988 treesize of output 5376290 [2022-11-25 22:18:35,348 INFO L350 Elim1Store]: Elim1 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 29 treesize of output 19 [2022-11-25 22:18:35,372 INFO L350 Elim1Store]: Elim1 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 29 treesize of output 19 [2022-11-25 22:18:35,484 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 31 [2022-11-25 22:18:35,498 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 31 [2022-11-25 22:18:35,520 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:18:35,521 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:18:35,522 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:18:35,524 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:18:35,525 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:18:35,526 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:18:35,527 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:18:35,529 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:18:35,530 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:18:35,531 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:18:35,533 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:18:35,534 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:18:35,535 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:18:35,536 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:18:35,538 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:18:35,539 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:18:35,540 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:18:35,562 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 32 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 0 case distinctions, treesize of input 9075051 treesize of output 5376293 [2022-11-25 22:18:35,599 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:18:35,601 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:18:35,602 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:18:35,604 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:18:35,605 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:18:35,606 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:18:35,608 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:18:35,609 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:18:35,613 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:18:35,615 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:18:35,616 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:18:35,617 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:18:35,619 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:18:35,620 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:18:35,621 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:18:35,622 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:18:35,624 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:18:35,631 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 32 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 0 case distinctions, treesize of input 9075051 treesize of output 5376293 [2022-11-25 22:18:35,706 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 9 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 46 [2022-11-25 22:18:35,739 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 10 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 46 [2022-11-25 22:18:35,757 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:18:35,759 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:18:35,760 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:18:35,821 INFO L321 Elim1Store]: treesize reduction 48, result has 48.9 percent of original size [2022-11-25 22:18:35,822 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 33 treesize of output 74 [2022-11-25 22:18:35,846 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:18:35,847 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:18:35,849 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:18:35,924 INFO L321 Elim1Store]: treesize reduction 90, result has 33.8 percent of original size [2022-11-25 22:18:35,924 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 6 select indices, 6 select index equivalence classes, 12 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 6 case distinctions, treesize of input 49 treesize of output 85 [2022-11-25 22:18:35,960 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:18:35,962 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:18:35,963 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:18:35,964 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:18:35,966 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:18:35,967 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:18:35,969 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:18:35,970 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:18:35,971 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:18:35,973 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:18:35,974 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:18:35,976 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:18:35,977 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:18:35,978 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:18:35,979 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:18:35,981 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:18:35,982 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:18:35,985 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 32 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 0 case distinctions, treesize of input 9075051 treesize of output 5376293 [2022-11-25 22:18:36,940 INFO L350 Elim1Store]: Elim1 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 29 treesize of output 19 [2022-11-25 22:18:36,959 INFO L350 Elim1Store]: Elim1 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 29 treesize of output 19 [2022-11-25 22:18:36,981 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:18:36,982 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:18:36,984 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:18:36,985 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:18:36,986 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:18:36,988 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:18:36,989 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:18:36,990 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:18:36,991 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:18:36,993 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:18:36,994 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:18:36,995 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:18:36,996 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:18:37,013 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 25 disjoint index pairs (out of 28 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 9896990 treesize of output 5376278 [2022-11-25 22:18:37,046 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:18:37,047 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:18:37,048 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:18:37,050 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:18:37,051 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:18:37,052 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:18:37,053 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:18:37,055 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:18:37,056 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:18:37,057 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:18:37,058 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:18:37,059 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:18:37,061 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:18:37,063 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 25 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 0 case distinctions, treesize of input 9075036 treesize of output 5376290 [2022-11-25 22:18:37,158 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 31 [2022-11-25 22:18:37,182 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:18:37,184 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:18:37,185 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:18:37,186 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:18:37,187 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:18:37,189 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:18:37,190 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:18:37,191 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:18:37,192 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:18:37,193 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:18:37,195 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:18:37,196 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:18:37,197 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:18:37,199 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:18:37,200 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:18:37,201 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:18:37,202 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:18:37,224 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 32 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 0 case distinctions, treesize of input 9075051 treesize of output 5376293 [2022-11-25 22:18:37,258 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:18:37,259 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:18:37,261 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:18:37,262 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:18:37,263 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:18:37,264 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:18:37,266 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:18:37,267 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:18:37,268 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:18:37,270 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:18:37,271 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:18:37,273 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:18:37,274 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:18:37,275 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:18:37,277 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:18:37,278 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:18:37,279 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:18:37,282 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 32 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 0 case distinctions, treesize of input 9075051 treesize of output 5376293 [2022-11-25 22:18:37,359 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 31 [2022-11-25 22:18:37,424 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:18:37,425 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:18:37,427 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:18:37,428 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:18:37,429 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:18:37,430 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:18:37,431 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:18:37,432 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:18:37,434 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:18:37,435 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:18:37,436 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:18:37,437 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:18:37,439 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:18:37,440 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:18:37,441 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:18:37,442 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:18:37,444 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:18:37,446 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 32 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 0 case distinctions, treesize of input 9075051 treesize of output 5376293 [2022-11-25 22:18:37,497 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 9 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 46 [2022-11-25 22:18:37,528 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 10 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 46 [2022-11-25 22:18:37,550 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:18:37,551 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:18:37,553 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:18:37,619 INFO L321 Elim1Store]: treesize reduction 48, result has 48.9 percent of original size [2022-11-25 22:18:37,619 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 33 treesize of output 74 [2022-11-25 22:18:37,650 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:18:37,652 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:18:37,653 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:18:37,730 INFO L321 Elim1Store]: treesize reduction 90, result has 33.8 percent of original size [2022-11-25 22:18:37,730 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 6 select indices, 6 select index equivalence classes, 12 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 6 case distinctions, treesize of input 49 treesize of output 85 [2022-11-25 22:18:38,143 INFO L197 IcfgInterpreter]: Interpreting procedure #Ultimate.C_memset with input of size 253 for LOIs [2022-11-25 22:18:38,305 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-25 22:18:45,207 WARN L233 SmtUtils]: Spent 5.56s on a formula simplification. DAG size of input: 235 DAG size of output: 220 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-25 22:18:53,754 WARN L233 SmtUtils]: Spent 6.43s on a formula simplification. DAG size of input: 251 DAG size of output: 236 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-25 22:19:08,130 WARN L233 SmtUtils]: Spent 10.26s on a formula simplification. DAG size of input: 262 DAG size of output: 248 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-25 22:19:21,228 WARN L233 SmtUtils]: Spent 6.94s on a formula simplification. DAG size of input: 284 DAG size of output: 262 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-25 22:19:34,072 WARN L233 SmtUtils]: Spent 6.67s on a formula simplification. DAG size of input: 284 DAG size of output: 262 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-25 22:19:34,746 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [1739400717] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 22:19:34,746 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-11-25 22:19:34,747 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [4, 4] total 17 [2022-11-25 22:19:34,747 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1921439346] [2022-11-25 22:19:34,747 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 22:19:34,748 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-11-25 22:19:34,748 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 22:19:34,749 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-11-25 22:19:34,750 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=91, Invalid=172, Unknown=9, NotChecked=0, Total=272 [2022-11-25 22:19:34,750 INFO L87 Difference]: Start difference. First operand 161 states and 194 transitions. Second operand has 13 states, 12 states have (on average 5.666666666666667) internal successors, (68), 11 states have internal predecessors, (68), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-25 22:19:37,382 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2022-11-25 22:19:39,520 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2022-11-25 22:19:41,562 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2022-11-25 22:19:43,647 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2022-11-25 22:19:45,687 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2022-11-25 22:19:47,711 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2022-11-25 22:19:49,757 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2022-11-25 22:19:51,776 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2022-11-25 22:19:53,792 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2022-11-25 22:19:57,556 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.02s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-25 22:20:00,092 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.33s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2022-11-25 22:20:00,103 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 22:20:00,103 INFO L93 Difference]: Finished difference Result 315 states and 384 transitions. [2022-11-25 22:20:00,104 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-11-25 22:20:00,104 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 5.666666666666667) internal successors, (68), 11 states have internal predecessors, (68), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) Word has length 74 [2022-11-25 22:20:00,104 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 22:20:00,105 INFO L225 Difference]: With dead ends: 315 [2022-11-25 22:20:00,105 INFO L226 Difference]: Without dead ends: 166 [2022-11-25 22:20:00,106 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 220 GetRequests, 203 SyntacticMatches, 2 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 86 ImplicationChecksByTransitivity, 56.4s TimeCoverageRelationStatistics Valid=91, Invalid=172, Unknown=9, NotChecked=0, Total=272 [2022-11-25 22:20:00,107 INFO L413 NwaCegarLoop]: 159 mSDtfsCounter, 0 mSDsluCounter, 243 mSDsCounter, 0 mSdLazyCounter, 224 mSolverCounterSat, 0 mSolverCounterUnsat, 9 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 25.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 402 SdHoareTripleChecker+Invalid, 233 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 224 IncrementalHoareTripleChecker+Invalid, 9 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 25.3s IncrementalHoareTripleChecker+Time [2022-11-25 22:20:00,107 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 402 Invalid, 233 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 224 Invalid, 9 Unknown, 0 Unchecked, 25.3s Time] [2022-11-25 22:20:00,109 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 166 states. [2022-11-25 22:20:00,137 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 166 to 166. [2022-11-25 22:20:00,137 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 166 states, 150 states have (on average 1.1733333333333333) internal successors, (176), 156 states have internal predecessors, (176), 12 states have call successors, (12), 3 states have call predecessors, (12), 2 states have return successors, (12), 7 states have call predecessors, (12), 12 states have call successors, (12) [2022-11-25 22:20:00,145 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 166 states to 166 states and 200 transitions. [2022-11-25 22:20:00,146 INFO L78 Accepts]: Start accepts. Automaton has 166 states and 200 transitions. Word has length 74 [2022-11-25 22:20:00,146 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 22:20:00,146 INFO L495 AbstractCegarLoop]: Abstraction has 166 states and 200 transitions. [2022-11-25 22:20:00,147 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 5.666666666666667) internal successors, (68), 11 states have internal predecessors, (68), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-25 22:20:00,147 INFO L276 IsEmpty]: Start isEmpty. Operand 166 states and 200 transitions. [2022-11-25 22:20:00,149 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2022-11-25 22:20:00,149 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 22:20:00,149 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 22:20:00,175 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41485339-15d2-4594-9a60-19344cf885c6/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-11-25 22:20:00,364 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41485339-15d2-4594-9a60-19344cf885c6/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 22:20:00,364 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 22:20:00,364 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 22:20:00,365 INFO L85 PathProgramCache]: Analyzing trace with hash -1163140644, now seen corresponding path program 1 times [2022-11-25 22:20:00,365 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 22:20:00,365 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1992298679] [2022-11-25 22:20:00,365 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:20:00,365 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 22:20:00,596 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-25 22:20:00,596 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [161799859] [2022-11-25 22:20:00,596 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:20:00,596 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 22:20:00,597 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41485339-15d2-4594-9a60-19344cf885c6/bin/utaipan-ByfvJB40ur/z3 [2022-11-25 22:20:00,598 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41485339-15d2-4594-9a60-19344cf885c6/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 22:20:00,618 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41485339-15d2-4594-9a60-19344cf885c6/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-11-25 22:20:01,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 22:20:01,934 INFO L263 TraceCheckSpWp]: Trace formula consists of 2264 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-25 22:20:01,945 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 22:20:02,066 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-11-25 22:20:02,067 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-25 22:20:02,206 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-11-25 22:20:02,206 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 22:20:02,206 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1992298679] [2022-11-25 22:20:02,206 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-25 22:20:02,207 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [161799859] [2022-11-25 22:20:02,207 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [161799859] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-25 22:20:02,207 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1439710897] [2022-11-25 22:20:02,211 INFO L159 IcfgInterpreter]: Started Sifa with 71 locations of interest [2022-11-25 22:20:02,211 INFO L166 IcfgInterpreter]: Building call graph [2022-11-25 22:20:02,212 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-25 22:20:02,212 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-25 22:20:02,212 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-25 22:20:02,303 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:20:02,327 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-11-25 22:20:02,327 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 5 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 2 case distinctions, treesize of input 27 treesize of output 37 [2022-11-25 22:20:02,339 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:20:02,340 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 22 [2022-11-25 22:20:02,365 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:20:02,365 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 22:20:02,367 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:20:02,383 INFO L321 Elim1Store]: treesize reduction 13, result has 45.8 percent of original size [2022-11-25 22:20:02,384 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 33 treesize of output 43 [2022-11-25 22:20:02,396 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:20:02,398 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:20:02,433 INFO L321 Elim1Store]: treesize reduction 20, result has 48.7 percent of original size [2022-11-25 22:20:02,434 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 22 treesize of output 38 [2022-11-25 22:20:02,457 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:20:02,466 INFO L350 Elim1Store]: Elim1 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 0 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 7 [2022-11-25 22:20:02,484 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:20:02,486 INFO L350 Elim1Store]: Elim1 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 0 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 7 [2022-11-25 22:20:02,499 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:20:02,501 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:20:02,547 INFO L321 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2022-11-25 22:20:02,548 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 8 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 4 case distinctions, treesize of input 32 treesize of output 49 [2022-11-25 22:20:02,926 INFO L350 Elim1Store]: Elim1 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 29 treesize of output 19 [2022-11-25 22:20:02,948 INFO L350 Elim1Store]: Elim1 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 29 treesize of output 19 [2022-11-25 22:20:02,967 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:20:02,969 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:20:02,970 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:20:02,972 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:20:02,973 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:20:02,974 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:20:02,975 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:20:02,976 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:20:02,977 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:20:02,978 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:20:02,979 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:20:02,980 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:20:02,981 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:20:02,997 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 25 disjoint index pairs (out of 28 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 9896990 treesize of output 5376278 [2022-11-25 22:20:03,023 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:20:03,025 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:20:03,027 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:20:03,028 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:20:03,029 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:20:03,030 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:20:03,031 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:20:03,032 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:20:03,033 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:20:03,034 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:20:03,035 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:20:03,036 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:20:03,038 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:20:03,040 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 25 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 0 case distinctions, treesize of input 9075036 treesize of output 5376290 [2022-11-25 22:20:03,090 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 31 [2022-11-25 22:20:03,104 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 31 [2022-11-25 22:20:03,125 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:20:03,127 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:20:03,128 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:20:03,129 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:20:03,130 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:20:03,131 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:20:03,133 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:20:03,134 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:20:03,136 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:20:03,137 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:20:03,138 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:20:03,139 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:20:03,140 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:20:03,142 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:20:03,143 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:20:03,144 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:20:03,145 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:20:03,161 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 32 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 0 case distinctions, treesize of input 9075051 treesize of output 5376293 [2022-11-25 22:20:03,191 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:20:03,195 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:20:03,196 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:20:03,197 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:20:03,198 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:20:03,199 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:20:03,200 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:20:03,201 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:20:03,202 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:20:03,203 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:20:03,204 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:20:03,205 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:20:03,205 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:20:03,211 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:20:03,212 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:20:03,213 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:20:03,215 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:20:03,217 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 32 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 0 case distinctions, treesize of input 9075051 treesize of output 5376293 [2022-11-25 22:20:03,282 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 10 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 46 [2022-11-25 22:20:03,298 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:20:03,300 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:20:03,301 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:20:03,358 INFO L321 Elim1Store]: treesize reduction 48, result has 48.9 percent of original size [2022-11-25 22:20:03,358 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 33 treesize of output 74 [2022-11-25 22:20:03,377 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:20:03,378 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:20:03,380 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:20:03,448 INFO L321 Elim1Store]: treesize reduction 90, result has 33.8 percent of original size [2022-11-25 22:20:03,449 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 6 select indices, 6 select index equivalence classes, 12 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 6 case distinctions, treesize of input 49 treesize of output 85 [2022-11-25 22:20:03,539 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:20:03,541 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:20:03,542 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:20:03,544 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:20:03,546 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:20:03,547 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:20:03,549 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:20:03,551 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:20:03,552 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:20:03,554 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:20:03,556 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:20:03,557 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:20:03,559 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:20:03,561 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:20:03,562 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:20:03,564 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:20:03,565 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:20:03,568 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 32 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 0 case distinctions, treesize of input 9075051 treesize of output 5376293 [2022-11-25 22:20:03,613 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 9 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 46 [2022-11-25 22:20:03,778 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-25 22:20:03,783 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-11-25 22:20:03,789 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-25 22:20:03,848 INFO L321 Elim1Store]: treesize reduction 13, result has 45.8 percent of original size [2022-11-25 22:20:03,848 INFO L350 Elim1Store]: Elim1 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 1 case distinctions, treesize of input 51 treesize of output 54 [2022-11-25 22:20:03,885 INFO L321 Elim1Store]: treesize reduction 15, result has 42.3 percent of original size [2022-11-25 22:20:03,886 INFO L350 Elim1Store]: Elim1 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 1 case distinctions, treesize of input 49 treesize of output 52 [2022-11-25 22:20:03,926 INFO L321 Elim1Store]: treesize reduction 13, result has 45.8 percent of original size [2022-11-25 22:20:03,926 INFO L350 Elim1Store]: Elim1 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 1 case distinctions, treesize of input 43 treesize of output 46 [2022-11-25 22:20:03,975 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12 [2022-11-25 22:20:03,982 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 10 [2022-11-25 22:20:03,989 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 10 [2022-11-25 22:20:04,067 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:20:04,069 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:20:04,070 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:20:04,072 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:20:04,073 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:20:04,075 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:20:04,076 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:20:04,077 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:20:04,079 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:20:04,080 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:20:04,082 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:20:04,083 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:20:04,085 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:20:04,087 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 9 select indices, 9 select index equivalence classes, 25 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 0 case distinctions, treesize of input 9075032 treesize of output 5376218 [2022-11-25 22:20:04,123 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 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 108 treesize of output 42 [2022-11-25 22:20:04,145 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 46 treesize of output 16 [2022-11-25 22:20:04,334 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:20:04,335 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:20:04,336 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:20:04,338 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:20:04,339 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:20:04,341 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:20:04,342 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:20:04,343 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:20:04,345 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:20:04,346 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:20:04,348 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:20:04,349 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:20:04,351 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:20:04,353 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 9 select indices, 9 select index equivalence classes, 25 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 0 case distinctions, treesize of input 9075032 treesize of output 5376218 [2022-11-25 22:20:04,376 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 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 108 treesize of output 42 [2022-11-25 22:20:04,398 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 46 treesize of output 16 [2022-11-25 22:20:09,125 INFO L217 Elim1Store]: Index analysis took 4197 ms [2022-11-25 22:20:14,122 INFO L321 Elim1Store]: treesize reduction 190, result has 18.1 percent of original size [2022-11-25 22:20:14,123 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 7 select indices, 7 select index equivalence classes, 4 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 22 case distinctions, treesize of input 10752723 treesize of output 10752742 [2022-11-25 22:20:15,371 INFO L217 Elim1Store]: Index analysis took 950 ms [2022-11-25 22:20:16,327 INFO L321 Elim1Store]: treesize reduction 87, result has 5.4 percent of original size [2022-11-25 22:20:16,327 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 6 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 10752718 treesize of output 10752722 [2022-11-25 22:23:54,373 WARN L233 SmtUtils]: Spent 3.63m on a formula simplification. DAG size of input: 198 DAG size of output: 106 (called from [L 318] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2022-11-25 22:23:54,374 INFO L321 Elim1Store]: treesize reduction 1611, result has 24.6 percent of original size [2022-11-25 22:23:54,375 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 6 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 9 new quantified variables, introduced 18 case distinctions, treesize of input 8576 treesize of output 6519 [2022-11-25 22:23:55,028 INFO L217 Elim1Store]: Index analysis took 262 ms [2022-11-25 22:25:15,286 WARN L233 SmtUtils]: Spent 1.34m on a formula simplification. DAG size of input: 90 DAG size of output: 45 (called from [L 318] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2022-11-25 22:25:15,287 INFO L321 Elim1Store]: treesize reduction 266, result has 31.6 percent of original size [2022-11-25 22:25:15,288 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 4 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 7 new quantified variables, introduced 8 case distinctions, treesize of input 8524 treesize of output 7357 [2022-11-25 22:25:21,552 INFO L217 Elim1Store]: Index analysis took 5035 ms