./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/uthash-2.0.2/uthash_FNV_test8-2.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_f02f4e07-c759-4dac-b27f-242e20130d38/bin/utaipan-ByfvJB40ur/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f02f4e07-c759-4dac-b27f-242e20130d38/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_f02f4e07-c759-4dac-b27f-242e20130d38/bin/utaipan-ByfvJB40ur/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f02f4e07-c759-4dac-b27f-242e20130d38/bin/utaipan-ByfvJB40ur/config/TaipanReach.xml -i ../../sv-benchmarks/c/uthash-2.0.2/uthash_FNV_test8-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f02f4e07-c759-4dac-b27f-242e20130d38/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_f02f4e07-c759-4dac-b27f-242e20130d38/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 b8fb715e20e93734f29581bef128b7f826b4b5933b157899cd0cb0d668434a9d --- 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 [2022-11-26 00:06:22,562 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-26 00:06:22,564 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-26 00:06:22,591 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-26 00:06:22,594 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-26 00:06:22,598 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-26 00:06:22,601 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-26 00:06:22,604 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-26 00:06:22,606 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-26 00:06:22,612 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-26 00:06:22,614 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-26 00:06:22,617 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-26 00:06:22,617 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-26 00:06:22,620 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-26 00:06:22,621 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-26 00:06:22,624 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-26 00:06:22,625 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-26 00:06:22,626 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-26 00:06:22,628 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-26 00:06:22,634 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-26 00:06:22,635 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-26 00:06:22,638 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-26 00:06:22,639 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-26 00:06:22,640 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-26 00:06:22,650 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-26 00:06:22,650 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-26 00:06:22,650 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-26 00:06:22,653 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-26 00:06:22,653 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-26 00:06:22,654 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-26 00:06:22,654 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-26 00:06:22,655 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-26 00:06:22,657 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-26 00:06:22,658 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-26 00:06:22,659 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-26 00:06:22,659 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-26 00:06:22,660 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-26 00:06:22,660 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-26 00:06:22,661 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-26 00:06:22,661 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-26 00:06:22,662 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-26 00:06:22,663 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f02f4e07-c759-4dac-b27f-242e20130d38/bin/utaipan-ByfvJB40ur/config/svcomp-Reach-32bit-Taipan_Default.epf [2022-11-26 00:06:22,682 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-26 00:06:22,683 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-26 00:06:22,683 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-26 00:06:22,683 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-26 00:06:22,684 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-26 00:06:22,684 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-26 00:06:22,684 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-26 00:06:22,685 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-26 00:06:22,685 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-26 00:06:22,685 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-26 00:06:22,685 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-26 00:06:22,685 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-26 00:06:22,686 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-26 00:06:22,686 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-26 00:06:22,686 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-26 00:06:22,686 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-26 00:06:22,687 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-26 00:06:22,687 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-26 00:06:22,687 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-26 00:06:22,688 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-26 00:06:22,688 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-26 00:06:22,688 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-26 00:06:22,688 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-26 00:06:22,689 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-26 00:06:22,689 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-26 00:06:22,689 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-26 00:06:22,689 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-26 00:06:22,689 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-26 00:06:22,690 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-26 00:06:22,690 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-26 00:06:22,690 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-26 00:06:22,690 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-26 00:06:22,691 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-26 00:06:22,691 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-26 00:06:22,691 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-26 00:06:22,691 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-26 00:06:22,691 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-26 00:06:22,692 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-26 00:06:22,692 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-26 00:06:22,692 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-26 00:06:22,692 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-26 00:06:22,693 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_f02f4e07-c759-4dac-b27f-242e20130d38/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f02f4e07-c759-4dac-b27f-242e20130d38/bin/utaipan-ByfvJB40ur Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b8fb715e20e93734f29581bef128b7f826b4b5933b157899cd0cb0d668434a9d [2022-11-26 00:06:22,958 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-26 00:06:22,979 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-26 00:06:22,982 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-26 00:06:22,983 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-26 00:06:22,984 INFO L275 PluginConnector]: CDTParser initialized [2022-11-26 00:06:22,985 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f02f4e07-c759-4dac-b27f-242e20130d38/bin/utaipan-ByfvJB40ur/../../sv-benchmarks/c/uthash-2.0.2/uthash_FNV_test8-2.i [2022-11-26 00:06:26,134 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-26 00:06:26,515 INFO L351 CDTParser]: Found 1 translation units. [2022-11-26 00:06:26,515 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f02f4e07-c759-4dac-b27f-242e20130d38/sv-benchmarks/c/uthash-2.0.2/uthash_FNV_test8-2.i [2022-11-26 00:06:26,532 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f02f4e07-c759-4dac-b27f-242e20130d38/bin/utaipan-ByfvJB40ur/data/12a027206/bc8b54154bc54dd082330a163b5b0355/FLAGc813154ac [2022-11-26 00:06:26,549 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f02f4e07-c759-4dac-b27f-242e20130d38/bin/utaipan-ByfvJB40ur/data/12a027206/bc8b54154bc54dd082330a163b5b0355 [2022-11-26 00:06:26,555 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-26 00:06:26,558 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-26 00:06:26,562 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-26 00:06:26,562 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-26 00:06:26,566 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-26 00:06:26,567 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 12:06:26" (1/1) ... [2022-11-26 00:06:26,568 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@29f78b78 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:06:26, skipping insertion in model container [2022-11-26 00:06:26,570 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 12:06:26" (1/1) ... [2022-11-26 00:06:26,577 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-26 00:06:26,644 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-26 00:06:27,116 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_f02f4e07-c759-4dac-b27f-242e20130d38/sv-benchmarks/c/uthash-2.0.2/uthash_FNV_test8-2.i[33021,33034] [2022-11-26 00:06:27,276 WARN L623 FunctionHandler]: Unknown extern function memcmp [2022-11-26 00:06:27,285 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_f02f4e07-c759-4dac-b27f-242e20130d38/sv-benchmarks/c/uthash-2.0.2/uthash_FNV_test8-2.i[45234,45247] [2022-11-26 00:06:27,315 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-26 00:06:27,339 INFO L203 MainTranslator]: Completed pre-run [2022-11-26 00:06:27,393 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_f02f4e07-c759-4dac-b27f-242e20130d38/sv-benchmarks/c/uthash-2.0.2/uthash_FNV_test8-2.i[33021,33034] [2022-11-26 00:06:27,470 WARN L623 FunctionHandler]: Unknown extern function memcmp [2022-11-26 00:06:27,476 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_f02f4e07-c759-4dac-b27f-242e20130d38/sv-benchmarks/c/uthash-2.0.2/uthash_FNV_test8-2.i[45234,45247] [2022-11-26 00:06:27,484 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-26 00:06:27,517 INFO L208 MainTranslator]: Completed translation [2022-11-26 00:06:27,517 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:06:27 WrapperNode [2022-11-26 00:06:27,517 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-26 00:06:27,519 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-26 00:06:27,519 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-26 00:06:27,519 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-26 00:06:27,527 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:06:27" (1/1) ... [2022-11-26 00:06:27,572 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:06:27" (1/1) ... [2022-11-26 00:06:27,633 INFO L138 Inliner]: procedures = 177, calls = 348, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 1147 [2022-11-26 00:06:27,634 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-26 00:06:27,634 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-26 00:06:27,634 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-26 00:06:27,635 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-26 00:06:27,644 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:06:27" (1/1) ... [2022-11-26 00:06:27,645 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:06:27" (1/1) ... [2022-11-26 00:06:27,655 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:06:27" (1/1) ... [2022-11-26 00:06:27,656 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:06:27" (1/1) ... [2022-11-26 00:06:27,704 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:06:27" (1/1) ... [2022-11-26 00:06:27,717 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:06:27" (1/1) ... [2022-11-26 00:06:27,721 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:06:27" (1/1) ... [2022-11-26 00:06:27,726 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:06:27" (1/1) ... [2022-11-26 00:06:27,734 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-26 00:06:27,735 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-26 00:06:27,736 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-26 00:06:27,736 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-26 00:06:27,737 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:06:27" (1/1) ... [2022-11-26 00:06:27,744 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-26 00:06:27,759 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f02f4e07-c759-4dac-b27f-242e20130d38/bin/utaipan-ByfvJB40ur/z3 [2022-11-26 00:06:27,773 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f02f4e07-c759-4dac-b27f-242e20130d38/bin/utaipan-ByfvJB40ur/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-26 00:06:27,801 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f02f4e07-c759-4dac-b27f-242e20130d38/bin/utaipan-ByfvJB40ur/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-26 00:06:27,822 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-26 00:06:27,823 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2022-11-26 00:06:27,823 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2022-11-26 00:06:27,823 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-26 00:06:27,823 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-11-26 00:06:27,824 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-11-26 00:06:27,824 INFO L130 BoogieDeclarations]: Found specification of procedure test_int [2022-11-26 00:06:27,824 INFO L138 BoogieDeclarations]: Found implementation of procedure test_int [2022-11-26 00:06:27,824 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-26 00:06:27,824 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-26 00:06:27,824 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-26 00:06:27,825 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-26 00:06:27,825 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2022-11-26 00:06:27,826 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-26 00:06:27,826 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-26 00:06:27,826 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-26 00:06:27,827 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-26 00:06:27,827 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-26 00:06:28,171 INFO L235 CfgBuilder]: Building ICFG [2022-11-26 00:06:28,188 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-26 00:06:30,122 INFO L276 CfgBuilder]: Performing block encoding [2022-11-26 00:06:30,604 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-26 00:06:30,605 INFO L300 CfgBuilder]: Removed 71 assume(true) statements. [2022-11-26 00:06:30,609 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 12:06:30 BoogieIcfgContainer [2022-11-26 00:06:30,609 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-26 00:06:30,612 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-26 00:06:30,613 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-26 00:06:30,616 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-26 00:06:30,616 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.11 12:06:26" (1/3) ... [2022-11-26 00:06:30,618 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6d86baa6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 12:06:30, skipping insertion in model container [2022-11-26 00:06:30,619 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:06:27" (2/3) ... [2022-11-26 00:06:30,620 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6d86baa6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 12:06:30, skipping insertion in model container [2022-11-26 00:06:30,620 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 12:06:30" (3/3) ... [2022-11-26 00:06:30,626 INFO L112 eAbstractionObserver]: Analyzing ICFG uthash_FNV_test8-2.i [2022-11-26 00:06:30,647 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-26 00:06:30,647 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-11-26 00:06:30,719 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-26 00:06:30,727 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;@ef55f1a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-26 00:06:30,727 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-11-26 00:06:30,733 INFO L276 IsEmpty]: Start isEmpty. Operand has 162 states, 136 states have (on average 1.7941176470588236) internal successors, (244), 153 states have internal predecessors, (244), 20 states have call successors, (20), 3 states have call predecessors, (20), 3 states have return successors, (20), 6 states have call predecessors, (20), 20 states have call successors, (20) [2022-11-26 00:06:30,746 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-11-26 00:06:30,747 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:06:30,748 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:06:30,748 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-26 00:06:30,756 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:06:30,757 INFO L85 PathProgramCache]: Analyzing trace with hash 1439031123, now seen corresponding path program 1 times [2022-11-26 00:06:30,767 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:06:30,768 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [293840641] [2022-11-26 00:06:30,768 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:06:30,769 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:06:30,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:06:31,002 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:06:31,002 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:06:31,003 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [293840641] [2022-11-26 00:06:31,004 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [293840641] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:06:31,004 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:06:31,005 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-26 00:06:31,006 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1390919727] [2022-11-26 00:06:31,007 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:06:31,012 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-26 00:06:31,013 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:06:31,055 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-26 00:06:31,056 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-26 00:06:31,058 INFO L87 Difference]: Start difference. First operand has 162 states, 136 states have (on average 1.7941176470588236) internal successors, (244), 153 states have internal predecessors, (244), 20 states have call successors, (20), 3 states have call predecessors, (20), 3 states have return successors, (20), 6 states have call predecessors, (20), 20 states have call successors, (20) Second operand has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:06:32,301 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:06:32,301 INFO L93 Difference]: Finished difference Result 323 states and 584 transitions. [2022-11-26 00:06:32,303 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-26 00:06:32,304 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2022-11-26 00:06:32,304 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:06:32,313 INFO L225 Difference]: With dead ends: 323 [2022-11-26 00:06:32,313 INFO L226 Difference]: Without dead ends: 146 [2022-11-26 00:06:32,317 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-26 00:06:32,321 INFO L413 NwaCegarLoop]: 189 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 189 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2022-11-26 00:06:32,322 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 189 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2022-11-26 00:06:32,339 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 146 states. [2022-11-26 00:06:32,367 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 146 to 146. [2022-11-26 00:06:32,369 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 146 states, 121 states have (on average 1.2727272727272727) internal successors, (154), 137 states have internal predecessors, (154), 20 states have call successors, (20), 3 states have call predecessors, (20), 3 states have return successors, (20), 6 states have call predecessors, (20), 20 states have call successors, (20) [2022-11-26 00:06:32,371 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 146 states to 146 states and 194 transitions. [2022-11-26 00:06:32,373 INFO L78 Accepts]: Start accepts. Automaton has 146 states and 194 transitions. Word has length 8 [2022-11-26 00:06:32,373 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:06:32,374 INFO L495 AbstractCegarLoop]: Abstraction has 146 states and 194 transitions. [2022-11-26 00:06:32,374 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:06:32,374 INFO L276 IsEmpty]: Start isEmpty. Operand 146 states and 194 transitions. [2022-11-26 00:06:32,376 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2022-11-26 00:06:32,376 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:06:32,376 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] [2022-11-26 00:06:32,377 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-26 00:06:32,377 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-26 00:06:32,378 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:06:32,378 INFO L85 PathProgramCache]: Analyzing trace with hash 607279358, now seen corresponding path program 1 times [2022-11-26 00:06:32,378 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:06:32,378 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [827268846] [2022-11-26 00:06:32,379 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:06:32,379 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:06:32,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:06:32,807 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:06:32,807 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:06:32,808 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [827268846] [2022-11-26 00:06:32,808 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [827268846] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:06:32,808 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:06:32,808 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-26 00:06:32,809 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2045361840] [2022-11-26 00:06:32,810 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:06:32,812 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-26 00:06:32,815 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:06:32,816 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-26 00:06:32,817 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-26 00:06:32,818 INFO L87 Difference]: Start difference. First operand 146 states and 194 transitions. Second operand has 4 states, 4 states have (on average 5.0) internal successors, (20), 3 states have internal predecessors, (20), 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) [2022-11-26 00:06:33,966 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:06:33,966 INFO L93 Difference]: Finished difference Result 293 states and 390 transitions. [2022-11-26 00:06:33,968 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-26 00:06:33,968 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 5.0) internal successors, (20), 3 states have internal predecessors, (20), 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 20 [2022-11-26 00:06:33,968 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:06:33,970 INFO L225 Difference]: With dead ends: 293 [2022-11-26 00:06:33,971 INFO L226 Difference]: Without dead ends: 202 [2022-11-26 00:06:33,972 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-26 00:06:33,973 INFO L413 NwaCegarLoop]: 167 mSDtfsCounter, 60 mSDsluCounter, 313 mSDsCounter, 0 mSdLazyCounter, 102 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 61 SdHoareTripleChecker+Valid, 480 SdHoareTripleChecker+Invalid, 104 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 102 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2022-11-26 00:06:33,974 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [61 Valid, 480 Invalid, 104 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 102 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2022-11-26 00:06:33,975 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 202 states. [2022-11-26 00:06:33,998 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 202 to 148. [2022-11-26 00:06:34,003 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 148 states, 123 states have (on average 1.2682926829268293) internal successors, (156), 139 states have internal predecessors, (156), 20 states have call successors, (20), 3 states have call predecessors, (20), 3 states have return successors, (20), 6 states have call predecessors, (20), 20 states have call successors, (20) [2022-11-26 00:06:34,014 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 148 states to 148 states and 196 transitions. [2022-11-26 00:06:34,014 INFO L78 Accepts]: Start accepts. Automaton has 148 states and 196 transitions. Word has length 20 [2022-11-26 00:06:34,015 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:06:34,015 INFO L495 AbstractCegarLoop]: Abstraction has 148 states and 196 transitions. [2022-11-26 00:06:34,015 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 5.0) internal successors, (20), 3 states have internal predecessors, (20), 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) [2022-11-26 00:06:34,015 INFO L276 IsEmpty]: Start isEmpty. Operand 148 states and 196 transitions. [2022-11-26 00:06:34,016 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-11-26 00:06:34,017 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:06:34,017 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] [2022-11-26 00:06:34,017 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-26 00:06:34,017 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-26 00:06:34,018 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:06:34,018 INFO L85 PathProgramCache]: Analyzing trace with hash 308617378, now seen corresponding path program 1 times [2022-11-26 00:06:34,018 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:06:34,019 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2013721340] [2022-11-26 00:06:34,019 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:06:34,019 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:06:34,189 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-26 00:06:34,190 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1419053748] [2022-11-26 00:06:34,190 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:06:34,190 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-26 00:06:34,190 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f02f4e07-c759-4dac-b27f-242e20130d38/bin/utaipan-ByfvJB40ur/z3 [2022-11-26 00:06:34,194 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f02f4e07-c759-4dac-b27f-242e20130d38/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-26 00:06:34,211 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f02f4e07-c759-4dac-b27f-242e20130d38/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-26 00:06:35,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:06:35,048 INFO L263 TraceCheckSpWp]: Trace formula consists of 1597 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-26 00:06:35,056 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-26 00:06:35,166 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:06:35,166 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-26 00:06:35,167 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:06:35,167 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2013721340] [2022-11-26 00:06:35,167 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-26 00:06:35,167 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1419053748] [2022-11-26 00:06:35,168 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1419053748] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:06:35,168 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:06:35,168 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-26 00:06:35,168 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [480733015] [2022-11-26 00:06:35,169 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:06:35,169 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-26 00:06:35,169 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:06:35,170 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-26 00:06:35,170 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-26 00:06:35,170 INFO L87 Difference]: Start difference. First operand 148 states and 196 transitions. Second operand has 3 states, 3 states have (on average 10.0) internal successors, (30), 2 states have internal predecessors, (30), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:06:36,418 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:06:36,418 INFO L93 Difference]: Finished difference Result 341 states and 444 transitions. [2022-11-26 00:06:36,421 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-26 00:06:36,422 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 10.0) internal successors, (30), 2 states have internal predecessors, (30), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 32 [2022-11-26 00:06:36,422 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:06:36,424 INFO L225 Difference]: With dead ends: 341 [2022-11-26 00:06:36,424 INFO L226 Difference]: Without dead ends: 196 [2022-11-26 00:06:36,425 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-26 00:06:36,426 INFO L413 NwaCegarLoop]: 189 mSDtfsCounter, 45 mSDsluCounter, 152 mSDsCounter, 0 mSdLazyCounter, 54 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 48 SdHoareTripleChecker+Valid, 341 SdHoareTripleChecker+Invalid, 59 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 54 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2022-11-26 00:06:36,427 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [48 Valid, 341 Invalid, 59 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 54 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2022-11-26 00:06:36,428 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 196 states. [2022-11-26 00:06:36,442 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 196 to 193. [2022-11-26 00:06:36,443 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 193 states, 167 states have (on average 1.2275449101796407) internal successors, (205), 183 states have internal predecessors, (205), 21 states have call successors, (21), 3 states have call predecessors, (21), 3 states have return successors, (21), 7 states have call predecessors, (21), 21 states have call successors, (21) [2022-11-26 00:06:36,444 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 193 states to 193 states and 247 transitions. [2022-11-26 00:06:36,445 INFO L78 Accepts]: Start accepts. Automaton has 193 states and 247 transitions. Word has length 32 [2022-11-26 00:06:36,445 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:06:36,445 INFO L495 AbstractCegarLoop]: Abstraction has 193 states and 247 transitions. [2022-11-26 00:06:36,445 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 10.0) internal successors, (30), 2 states have internal predecessors, (30), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:06:36,446 INFO L276 IsEmpty]: Start isEmpty. Operand 193 states and 247 transitions. [2022-11-26 00:06:36,447 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2022-11-26 00:06:36,447 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:06:36,447 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] [2022-11-26 00:06:36,459 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f02f4e07-c759-4dac-b27f-242e20130d38/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2022-11-26 00:06:36,655 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f02f4e07-c759-4dac-b27f-242e20130d38/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-26 00:06:36,656 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-26 00:06:36,656 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:06:36,656 INFO L85 PathProgramCache]: Analyzing trace with hash 922198994, now seen corresponding path program 1 times [2022-11-26 00:06:36,657 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:06:36,657 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1801878027] [2022-11-26 00:06:36,657 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:06:36,657 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:06:36,735 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-26 00:06:36,736 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1917303402] [2022-11-26 00:06:36,736 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:06:36,736 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-26 00:06:36,737 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f02f4e07-c759-4dac-b27f-242e20130d38/bin/utaipan-ByfvJB40ur/z3 [2022-11-26 00:06:36,738 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f02f4e07-c759-4dac-b27f-242e20130d38/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-26 00:06:36,767 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f02f4e07-c759-4dac-b27f-242e20130d38/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-26 00:07:16,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:07:16,300 INFO L263 TraceCheckSpWp]: Trace formula consists of 734 conjuncts, 7 conjunts are in the unsatisfiable core [2022-11-26 00:07:16,304 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-26 00:07:16,335 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-26 00:07:16,335 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-26 00:07:16,335 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:07:16,336 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1801878027] [2022-11-26 00:07:16,336 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-26 00:07:16,336 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1917303402] [2022-11-26 00:07:16,336 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1917303402] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:07:16,337 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:07:16,337 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-26 00:07:16,337 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2136308651] [2022-11-26 00:07:16,337 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:07:16,338 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-26 00:07:16,338 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:07:16,339 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-26 00:07:16,339 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-26 00:07:16,339 INFO L87 Difference]: Start difference. First operand 193 states and 247 transitions. Second operand has 4 states, 3 states have (on average 13.0) internal successors, (39), 4 states have internal predecessors, (39), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2022-11-26 00:07:18,337 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.26s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-26 00:07:18,446 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:07:18,447 INFO L93 Difference]: Finished difference Result 372 states and 482 transitions. [2022-11-26 00:07:18,451 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-26 00:07:18,451 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 13.0) internal successors, (39), 4 states have internal predecessors, (39), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) Word has length 45 [2022-11-26 00:07:18,451 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:07:18,453 INFO L225 Difference]: With dead ends: 372 [2022-11-26 00:07:18,453 INFO L226 Difference]: Without dead ends: 195 [2022-11-26 00:07:18,454 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-26 00:07:18,455 INFO L413 NwaCegarLoop]: 175 mSDtfsCounter, 1 mSDsluCounter, 346 mSDsCounter, 0 mSdLazyCounter, 60 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 521 SdHoareTripleChecker+Invalid, 61 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 60 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2022-11-26 00:07:18,455 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 521 Invalid, 61 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 60 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2022-11-26 00:07:18,456 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 195 states. [2022-11-26 00:07:18,470 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 195 to 195. [2022-11-26 00:07:18,471 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 195 states, 168 states have (on average 1.2321428571428572) internal successors, (207), 185 states have internal predecessors, (207), 21 states have call successors, (21), 3 states have call predecessors, (21), 4 states have return successors, (22), 7 states have call predecessors, (22), 21 states have call successors, (22) [2022-11-26 00:07:18,472 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 195 states to 195 states and 250 transitions. [2022-11-26 00:07:18,473 INFO L78 Accepts]: Start accepts. Automaton has 195 states and 250 transitions. Word has length 45 [2022-11-26 00:07:18,473 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:07:18,473 INFO L495 AbstractCegarLoop]: Abstraction has 195 states and 250 transitions. [2022-11-26 00:07:18,473 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 13.0) internal successors, (39), 4 states have internal predecessors, (39), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2022-11-26 00:07:18,474 INFO L276 IsEmpty]: Start isEmpty. Operand 195 states and 250 transitions. [2022-11-26 00:07:18,475 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2022-11-26 00:07:18,475 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:07:18,475 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:07:18,510 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f02f4e07-c759-4dac-b27f-242e20130d38/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2022-11-26 00:07:18,703 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f02f4e07-c759-4dac-b27f-242e20130d38/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-26 00:07:18,703 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-26 00:07:18,703 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:07:18,704 INFO L85 PathProgramCache]: Analyzing trace with hash -1894472968, now seen corresponding path program 1 times [2022-11-26 00:07:18,704 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:07:18,704 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2100512313] [2022-11-26 00:07:18,704 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:07:18,704 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:07:18,791 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-26 00:07:18,792 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1064545875] [2022-11-26 00:07:18,792 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:07:18,792 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-26 00:07:18,793 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f02f4e07-c759-4dac-b27f-242e20130d38/bin/utaipan-ByfvJB40ur/z3 [2022-11-26 00:07:18,794 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f02f4e07-c759-4dac-b27f-242e20130d38/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-26 00:07:18,837 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f02f4e07-c759-4dac-b27f-242e20130d38/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-26 00:07:34,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:07:34,564 INFO L263 TraceCheckSpWp]: Trace formula consists of 764 conjuncts, 7 conjunts are in the unsatisfiable core [2022-11-26 00:07:34,568 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-26 00:07:34,598 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 6 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-26 00:07:34,599 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-26 00:07:34,728 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-26 00:07:34,729 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:07:34,730 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2100512313] [2022-11-26 00:07:34,730 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-26 00:07:34,730 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1064545875] [2022-11-26 00:07:34,730 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1064545875] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-26 00:07:34,731 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1213454567] [2022-11-26 00:07:34,770 INFO L159 IcfgInterpreter]: Started Sifa with 43 locations of interest [2022-11-26 00:07:34,771 INFO L166 IcfgInterpreter]: Building call graph [2022-11-26 00:07:34,777 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-26 00:07:34,783 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-26 00:07:34,784 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-26 00:07:34,915 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2022-11-26 00:07:34,921 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2022-11-26 00:07:34,929 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:07:34,951 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-11-26 00:07:34,952 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 [2022-11-26 00:07:34,964 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:07:34,965 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 0 case distinctions, treesize of input 26 treesize of output 28 [2022-11-26 00:07:34,976 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:07:34,978 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 [2022-11-26 00:07:35,016 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:07:35,022 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:07:35,024 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:07:35,025 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:07:35,028 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:07:35,045 INFO L321 Elim1Store]: treesize reduction 13, result has 45.8 percent of original size [2022-11-26 00:07:35,046 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 1 case distinctions, treesize of input 52 treesize of output 53 [2022-11-26 00:07:35,065 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:07:35,066 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:07:35,106 INFO L321 Elim1Store]: treesize reduction 20, result has 48.7 percent of original size [2022-11-26 00:07:35,107 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 [2022-11-26 00:07:35,137 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:07:35,138 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 [2022-11-26 00:07:35,154 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:07:35,155 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 [2022-11-26 00:07:35,166 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:07:35,168 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:07:35,208 INFO L321 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2022-11-26 00:07:35,208 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 [2022-11-26 00:07:35,814 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:07:35,815 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:07:35,817 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:07:35,819 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:07:35,820 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:07:35,821 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:07:35,822 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:07:35,823 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:07:35,824 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:07:35,825 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:07:35,827 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:07:35,828 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:07:35,829 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:07:35,830 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:07:35,832 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:07:35,854 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 29 disjoint index pairs (out of 36 index pairs), introduced 8 new quantified variables, introduced 0 case distinctions, treesize of input 9897009 treesize of output 5376288 [2022-11-26 00:07:35,895 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:07:35,897 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:07:35,898 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:07:35,899 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:07:35,901 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:07:35,902 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:07:35,904 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:07:35,905 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:07:35,906 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:07:35,908 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:07:35,909 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:07:35,910 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:07:35,912 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:07:35,913 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:07:35,915 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:07:35,918 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 29 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 0 case distinctions, treesize of input 8458577 treesize of output 4759834 [2022-11-26 00:07:35,961 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 [2022-11-26 00:07:35,984 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 [2022-11-26 00:07:36,065 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:07:36,067 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:07:36,069 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:07:36,070 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:07:36,071 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:07:36,073 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:07:36,074 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:07:36,076 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:07:36,078 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:07:36,079 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:07:36,081 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:07:36,082 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:07:36,084 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:07:36,085 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:07:36,086 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:07:36,088 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:07:36,089 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:07:36,091 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:07:36,092 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:07:36,119 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 10 select indices, 10 select index equivalence classes, 36 disjoint index pairs (out of 45 index pairs), introduced 10 new quantified variables, introduced 0 case distinctions, treesize of input 8458592 treesize of output 4759837 [2022-11-26 00:07:36,152 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:07:36,153 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:07:36,154 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:07:36,155 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:07:36,157 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:07:36,158 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:07:36,159 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:07:36,160 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:07:36,161 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:07:36,162 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:07:36,164 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:07:36,165 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:07:36,166 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:07:36,167 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:07:36,168 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:07:36,169 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:07:36,170 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:07:36,172 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:07:36,173 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:07:36,174 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:07:36,175 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:07:36,178 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 10 select indices, 10 select index equivalence classes, 36 disjoint index pairs (out of 45 index pairs), introduced 10 new quantified variables, introduced 0 case distinctions, treesize of input 8458592 treesize of output 4759837 [2022-11-26 00:07:36,213 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 [2022-11-26 00:07:36,227 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 [2022-11-26 00:07:36,294 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 [2022-11-26 00:07:36,311 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:07:36,315 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:07:36,316 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:07:36,377 INFO L321 Elim1Store]: treesize reduction 90, result has 33.8 percent of original size [2022-11-26 00:07:36,378 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 [2022-11-26 00:07:36,399 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:07:36,401 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:07:36,403 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:07:36,404 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 13 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 44 [2022-11-26 00:07:36,432 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 [2022-11-26 00:07:36,456 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:07:36,457 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:07:36,459 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:07:36,460 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:07:36,461 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:07:36,463 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:07:36,464 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:07:36,465 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:07:36,466 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:07:36,467 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:07:36,468 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:07:36,470 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:07:36,471 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:07:36,472 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:07:36,473 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:07:36,474 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:07:36,476 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:07:36,477 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:07:36,478 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:07:36,481 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 10 select indices, 10 select index equivalence classes, 36 disjoint index pairs (out of 45 index pairs), introduced 10 new quantified variables, introduced 0 case distinctions, treesize of input 8458592 treesize of output 4759837 [2022-11-26 00:07:36,733 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 [2022-11-26 00:07:36,738 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 [2022-11-26 00:07:36,743 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 [2022-11-26 00:07:36,794 INFO L321 Elim1Store]: treesize reduction 13, result has 45.8 percent of original size [2022-11-26 00:07:36,794 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 [2022-11-26 00:07:36,829 INFO L321 Elim1Store]: treesize reduction 15, result has 42.3 percent of original size [2022-11-26 00:07:36,829 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 [2022-11-26 00:07:36,860 INFO L321 Elim1Store]: treesize reduction 13, result has 45.8 percent of original size [2022-11-26 00:07:36,860 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 [2022-11-26 00:07:36,902 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 [2022-11-26 00:07:36,908 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 [2022-11-26 00:07:36,915 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 [2022-11-26 00:07:36,987 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:07:36,989 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:07:36,990 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:07:36,991 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:07:36,993 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:07:36,994 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:07:36,995 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:07:36,996 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:07:36,998 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:07:36,999 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:07:37,000 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:07:37,002 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:07:37,003 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:07:37,004 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:07:37,005 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:07:37,007 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:07:37,008 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:07:37,010 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 10 select indices, 10 select index equivalence classes, 29 disjoint index pairs (out of 45 index pairs), introduced 10 new quantified variables, introduced 0 case distinctions, treesize of input 8458573 treesize of output 4759755 [2022-11-26 00:07:37,040 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 [2022-11-26 00:07:37,062 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 [2022-11-26 00:07:37,295 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:07:37,299 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:07:37,300 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:07:37,302 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:07:37,303 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:07:37,304 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:07:37,306 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:07:37,307 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:07:37,309 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:07:37,310 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:07:37,312 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:07:37,315 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:07:37,316 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:07:37,318 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:07:37,319 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:07:37,321 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:07:37,322 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:07:37,325 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 10 select indices, 10 select index equivalence classes, 29 disjoint index pairs (out of 45 index pairs), introduced 10 new quantified variables, introduced 0 case distinctions, treesize of input 8458573 treesize of output 4759755 [2022-11-26 00:07:37,349 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 [2022-11-26 00:07:37,366 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 [2022-11-26 00:07:38,850 INFO L217 Elim1Store]: Index analysis took 1207 ms [2022-11-26 00:07:43,498 INFO L321 Elim1Store]: treesize reduction 190, result has 18.1 percent of original size [2022-11-26 00:07:43,499 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 9519777 treesize of output 9519796 [2022-11-26 00:07:44,612 INFO L217 Elim1Store]: Index analysis took 885 ms [2022-11-26 00:07:45,362 INFO L321 Elim1Store]: treesize reduction 87, result has 5.4 percent of original size [2022-11-26 00:07:45,363 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 9519772 treesize of output 9519776 [2022-11-26 00:10:53,347 WARN L233 SmtUtils]: Spent 3.13m on a formula simplification. DAG size of input: 175 DAG size of output: 92 (called from [L 318] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2022-11-26 00:10:53,348 INFO L321 Elim1Store]: treesize reduction 1193, result has 25.3 percent of original size [2022-11-26 00:10:53,349 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 5 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 9 new quantified variables, introduced 13 case distinctions, treesize of input 9890 treesize of output 6802 [2022-11-26 00:11:20,381 WARN L233 SmtUtils]: Spent 26.80s on a formula simplification. DAG size of input: 80 DAG size of output: 13 (called from [L 318] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2022-11-26 00:11:20,382 INFO L321 Elim1Store]: treesize reduction 252, result has 6.7 percent of original size [2022-11-26 00:11:20,383 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 4 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 4 new quantified variables, introduced 11 case distinctions, treesize of input 10021 treesize of output 9263 [2022-11-26 00:11:20,893 INFO L217 Elim1Store]: Index analysis took 205 ms [2022-11-26 00:12:33,750 WARN L233 SmtUtils]: Spent 1.21m on a formula simplification. DAG size of input: 91 DAG size of output: 46 (called from [L 318] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2022-11-26 00:12:33,750 INFO L321 Elim1Store]: treesize reduction 338, result has 31.4 percent of original size [2022-11-26 00:12:33,751 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 10438 treesize of output 9115 [2022-11-26 00:12:40,370 INFO L217 Elim1Store]: Index analysis took 4360 ms [2022-11-26 00:16:34,630 WARN L233 SmtUtils]: Spent 3.89m on a formula simplification. DAG size of input: 408 DAG size of output: 225 (called from [L 318] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2022-11-26 00:16:34,631 INFO L321 Elim1Store]: treesize reduction 11269, result has 26.7 percent of original size [2022-11-26 00:16:34,632 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 8 stores, 0 select indices, 0 select index equivalence classes, 5 disjoint index pairs (out of 0 index pairs), introduced 8 new quantified variables, introduced 32 case distinctions, treesize of input 9192 treesize of output 12130