./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test5-3.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 4e7fbc69 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_27227fb6-e2ce-416f-8679-07030611b569/bin/utaipan-Q6hlc19bkW/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27227fb6-e2ce-416f-8679-07030611b569/bin/utaipan-Q6hlc19bkW/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27227fb6-e2ce-416f-8679-07030611b569/bin/utaipan-Q6hlc19bkW/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27227fb6-e2ce-416f-8679-07030611b569/bin/utaipan-Q6hlc19bkW/config/TaipanReach.xml -i ../../sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test5-3.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27227fb6-e2ce-416f-8679-07030611b569/bin/utaipan-Q6hlc19bkW/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27227fb6-e2ce-416f-8679-07030611b569/bin/utaipan-Q6hlc19bkW --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 94599b38b669e42115f92cee257d9ed4ed5d4777dca7d2ee690bacb4e0d226f0 --- 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-4e7fbc6 [2022-11-23 15:40:32,469 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-23 15:40:32,472 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-23 15:40:32,514 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-23 15:40:32,514 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-23 15:40:32,518 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-23 15:40:32,521 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-23 15:40:32,524 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-23 15:40:32,526 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-23 15:40:32,533 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-23 15:40:32,534 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-23 15:40:32,537 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-23 15:40:32,537 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-23 15:40:32,540 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-23 15:40:32,542 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-23 15:40:32,543 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-23 15:40:32,545 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-23 15:40:32,546 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-23 15:40:32,549 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-23 15:40:32,555 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-23 15:40:32,557 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-23 15:40:32,559 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-23 15:40:32,561 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-23 15:40:32,562 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-23 15:40:32,572 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-23 15:40:32,572 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-23 15:40:32,573 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-23 15:40:32,574 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-23 15:40:32,575 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-23 15:40:32,576 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-23 15:40:32,576 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-23 15:40:32,577 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-23 15:40:32,579 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-23 15:40:32,581 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-23 15:40:32,582 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-23 15:40:32,583 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-23 15:40:32,583 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-23 15:40:32,584 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-23 15:40:32,584 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-23 15:40:32,586 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-23 15:40:32,587 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-23 15:40:32,588 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27227fb6-e2ce-416f-8679-07030611b569/bin/utaipan-Q6hlc19bkW/config/svcomp-Reach-32bit-Taipan_Default.epf [2022-11-23 15:40:32,627 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-23 15:40:32,627 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-23 15:40:32,628 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-23 15:40:32,628 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-23 15:40:32,629 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-23 15:40:32,630 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-23 15:40:32,630 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-23 15:40:32,630 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-23 15:40:32,630 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-23 15:40:32,631 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-23 15:40:32,632 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-23 15:40:32,632 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-23 15:40:32,632 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-23 15:40:32,632 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-23 15:40:32,633 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-23 15:40:32,633 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-23 15:40:32,633 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-23 15:40:32,633 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-23 15:40:32,634 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-23 15:40:32,635 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-23 15:40:32,635 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-23 15:40:32,635 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-23 15:40:32,635 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-23 15:40:32,636 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-23 15:40:32,636 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-23 15:40:32,636 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-23 15:40:32,636 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-23 15:40:32,637 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-23 15:40:32,637 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-23 15:40:32,637 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-23 15:40:32,637 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-23 15:40:32,638 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-23 15:40:32,638 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-23 15:40:32,638 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-23 15:40:32,639 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-23 15:40:32,639 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-23 15:40:32,639 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-23 15:40:32,639 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-23 15:40:32,640 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-23 15:40:32,640 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-23 15:40:32,640 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-23 15:40:32,640 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_27227fb6-e2ce-416f-8679-07030611b569/bin/utaipan-Q6hlc19bkW/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27227fb6-e2ce-416f-8679-07030611b569/bin/utaipan-Q6hlc19bkW Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 94599b38b669e42115f92cee257d9ed4ed5d4777dca7d2ee690bacb4e0d226f0 [2022-11-23 15:40:32,965 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-23 15:40:33,004 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-23 15:40:33,007 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-23 15:40:33,008 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-23 15:40:33,009 INFO L275 PluginConnector]: CDTParser initialized [2022-11-23 15:40:33,011 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27227fb6-e2ce-416f-8679-07030611b569/bin/utaipan-Q6hlc19bkW/../../sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test5-3.i [2022-11-23 15:40:36,067 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-23 15:40:36,401 INFO L351 CDTParser]: Found 1 translation units. [2022-11-23 15:40:36,411 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27227fb6-e2ce-416f-8679-07030611b569/sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test5-3.i [2022-11-23 15:40:36,442 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27227fb6-e2ce-416f-8679-07030611b569/bin/utaipan-Q6hlc19bkW/data/e0f385d90/3dd5401dfd1f43c9b567dd55f68577b6/FLAG908fc005a [2022-11-23 15:40:36,460 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27227fb6-e2ce-416f-8679-07030611b569/bin/utaipan-Q6hlc19bkW/data/e0f385d90/3dd5401dfd1f43c9b567dd55f68577b6 [2022-11-23 15:40:36,464 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-23 15:40:36,466 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-23 15:40:36,471 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-23 15:40:36,471 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-23 15:40:36,474 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-23 15:40:36,475 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 03:40:36" (1/1) ... [2022-11-23 15:40:36,476 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@44d233f9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:40:36, skipping insertion in model container [2022-11-23 15:40:36,476 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 03:40:36" (1/1) ... [2022-11-23 15:40:36,483 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-23 15:40:36,586 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-23 15:40:37,028 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_27227fb6-e2ce-416f-8679-07030611b569/sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test5-3.i[33021,33034] [2022-11-23 15:40:37,186 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_27227fb6-e2ce-416f-8679-07030611b569/sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test5-3.i[49681,49694] [2022-11-23 15:40:37,207 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-23 15:40:37,217 INFO L203 MainTranslator]: Completed pre-run [2022-11-23 15:40:37,245 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_27227fb6-e2ce-416f-8679-07030611b569/sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test5-3.i[33021,33034] [2022-11-23 15:40:37,322 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_27227fb6-e2ce-416f-8679-07030611b569/sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test5-3.i[49681,49694] [2022-11-23 15:40:37,336 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-23 15:40:37,370 INFO L208 MainTranslator]: Completed translation [2022-11-23 15:40:37,370 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:40:37 WrapperNode [2022-11-23 15:40:37,370 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-23 15:40:37,372 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-23 15:40:37,372 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-23 15:40:37,372 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-23 15:40:37,380 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:40:37" (1/1) ... [2022-11-23 15:40:37,413 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:40:37" (1/1) ... [2022-11-23 15:40:37,507 INFO L138 Inliner]: procedures = 177, calls = 487, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 1686 [2022-11-23 15:40:37,508 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-23 15:40:37,508 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-23 15:40:37,509 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-23 15:40:37,509 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-23 15:40:37,520 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:40:37" (1/1) ... [2022-11-23 15:40:37,520 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:40:37" (1/1) ... [2022-11-23 15:40:37,543 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:40:37" (1/1) ... [2022-11-23 15:40:37,547 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:40:37" (1/1) ... [2022-11-23 15:40:37,621 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:40:37" (1/1) ... [2022-11-23 15:40:37,637 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:40:37" (1/1) ... [2022-11-23 15:40:37,650 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:40:37" (1/1) ... [2022-11-23 15:40:37,657 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:40:37" (1/1) ... [2022-11-23 15:40:37,669 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-23 15:40:37,670 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-23 15:40:37,670 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-23 15:40:37,671 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-23 15:40:37,671 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:40:37" (1/1) ... [2022-11-23 15:40:37,678 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-23 15:40:37,691 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27227fb6-e2ce-416f-8679-07030611b569/bin/utaipan-Q6hlc19bkW/z3 [2022-11-23 15:40:37,714 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27227fb6-e2ce-416f-8679-07030611b569/bin/utaipan-Q6hlc19bkW/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-23 15:40:37,793 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27227fb6-e2ce-416f-8679-07030611b569/bin/utaipan-Q6hlc19bkW/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-23 15:40:37,812 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-23 15:40:37,812 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2022-11-23 15:40:37,813 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2022-11-23 15:40:37,813 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-23 15:40:37,813 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-11-23 15:40:37,813 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-11-23 15:40:37,813 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-23 15:40:37,813 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-23 15:40:37,814 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-23 15:40:37,814 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-23 15:40:37,814 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2022-11-23 15:40:37,814 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-23 15:40:37,814 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-23 15:40:37,815 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-23 15:40:37,815 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-23 15:40:37,816 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-23 15:40:38,141 INFO L235 CfgBuilder]: Building ICFG [2022-11-23 15:40:38,143 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-23 15:40:40,268 INFO L276 CfgBuilder]: Performing block encoding [2022-11-23 15:40:40,960 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-23 15:40:40,960 INFO L300 CfgBuilder]: Removed 100 assume(true) statements. [2022-11-23 15:40:40,964 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 03:40:40 BoogieIcfgContainer [2022-11-23 15:40:40,964 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-23 15:40:40,968 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-23 15:40:40,969 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-23 15:40:40,972 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-23 15:40:40,972 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 03:40:36" (1/3) ... [2022-11-23 15:40:40,974 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@454412f5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 03:40:40, skipping insertion in model container [2022-11-23 15:40:40,975 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:40:37" (2/3) ... [2022-11-23 15:40:40,976 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@454412f5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 03:40:40, skipping insertion in model container [2022-11-23 15:40:40,976 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 03:40:40" (3/3) ... [2022-11-23 15:40:40,977 INFO L112 eAbstractionObserver]: Analyzing ICFG uthash_SFH_test5-3.i [2022-11-23 15:40:40,998 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-23 15:40:40,998 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-11-23 15:40:41,082 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-23 15:40:41,092 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;@134aa22d, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-23 15:40:41,093 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-11-23 15:40:41,098 INFO L276 IsEmpty]: Start isEmpty. Operand has 177 states, 161 states have (on average 1.813664596273292) internal successors, (292), 168 states have internal predecessors, (292), 11 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (11), 7 states have call predecessors, (11), 11 states have call successors, (11) [2022-11-23 15:40:41,107 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-11-23 15:40:41,107 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 15:40:41,108 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2022-11-23 15:40:41,109 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 15:40:41,116 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 15:40:41,116 INFO L85 PathProgramCache]: Analyzing trace with hash 274883441, now seen corresponding path program 1 times [2022-11-23 15:40:41,127 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 15:40:41,128 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [325126340] [2022-11-23 15:40:41,128 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:40:41,130 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 15:40:41,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:40:41,433 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 15:40:41,446 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [325126340] [2022-11-23 15:40:41,447 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unsupported non-linear arithmetic [2022-11-23 15:40:41,448 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1740464446] [2022-11-23 15:40:41,448 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:40:41,462 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 15:40:41,463 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27227fb6-e2ce-416f-8679-07030611b569/bin/utaipan-Q6hlc19bkW/z3 [2022-11-23 15:40:41,491 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27227fb6-e2ce-416f-8679-07030611b569/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-23 15:40:41,531 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27227fb6-e2ce-416f-8679-07030611b569/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-23 15:40:41,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:40:41,848 INFO L263 TraceCheckSpWp]: Trace formula consists of 67 conjuncts, 1 conjunts are in the unsatisfiable core [2022-11-23 15:40:41,855 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 15:40:41,876 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 15:40:41,876 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-23 15:40:41,877 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1740464446] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 15:40:41,878 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 15:40:41,878 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-23 15:40:41,881 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [564367492] [2022-11-23 15:40:41,883 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 15:40:41,889 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-23 15:40:41,890 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 15:40:41,933 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-23 15:40:41,933 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-23 15:40:41,938 INFO L87 Difference]: Start difference. First operand has 177 states, 161 states have (on average 1.813664596273292) internal successors, (292), 168 states have internal predecessors, (292), 11 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (11), 7 states have call predecessors, (11), 11 states have call successors, (11) Second operand has 2 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 15:40:42,981 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 15:40:42,981 INFO L93 Difference]: Finished difference Result 353 states and 632 transitions. [2022-11-23 15:40:42,989 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-23 15:40:42,990 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 6 [2022-11-23 15:40:42,991 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 15:40:42,999 INFO L225 Difference]: With dead ends: 353 [2022-11-23 15:40:43,000 INFO L226 Difference]: Without dead ends: 150 [2022-11-23 15:40:43,003 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-23 15:40:43,007 INFO L413 NwaCegarLoop]: 186 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 186 SdHoareTripleChecker+Invalid, 29 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 29 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-11-23 15:40:43,008 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 186 Invalid, 29 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 29 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-11-23 15:40:43,024 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 150 states. [2022-11-23 15:40:43,055 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 150 to 150. [2022-11-23 15:40:43,059 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 150 states, 135 states have (on average 1.1925925925925926) internal successors, (161), 141 states have internal predecessors, (161), 11 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (11), 7 states have call predecessors, (11), 11 states have call successors, (11) [2022-11-23 15:40:43,066 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 150 states to 150 states and 183 transitions. [2022-11-23 15:40:43,067 INFO L78 Accepts]: Start accepts. Automaton has 150 states and 183 transitions. Word has length 6 [2022-11-23 15:40:43,068 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 15:40:43,068 INFO L495 AbstractCegarLoop]: Abstraction has 150 states and 183 transitions. [2022-11-23 15:40:43,068 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 15:40:43,068 INFO L276 IsEmpty]: Start isEmpty. Operand 150 states and 183 transitions. [2022-11-23 15:40:43,070 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2022-11-23 15:40:43,070 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 15:40:43,070 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 15:40:43,082 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27227fb6-e2ce-416f-8679-07030611b569/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-11-23 15:40:43,271 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27227fb6-e2ce-416f-8679-07030611b569/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2022-11-23 15:40:43,271 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 15:40:43,272 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 15:40:43,272 INFO L85 PathProgramCache]: Analyzing trace with hash -1671934868, now seen corresponding path program 1 times [2022-11-23 15:40:43,272 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 15:40:43,272 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1182463290] [2022-11-23 15:40:43,272 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:40:43,272 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 15:40:43,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:40:43,339 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 15:40:43,345 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1182463290] [2022-11-23 15:40:43,345 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unsupported non-linear arithmetic [2022-11-23 15:40:43,346 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1826998147] [2022-11-23 15:40:43,347 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:40:43,347 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 15:40:43,347 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27227fb6-e2ce-416f-8679-07030611b569/bin/utaipan-Q6hlc19bkW/z3 [2022-11-23 15:40:43,349 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27227fb6-e2ce-416f-8679-07030611b569/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-23 15:40:43,374 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27227fb6-e2ce-416f-8679-07030611b569/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-23 15:40:43,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:40:43,674 INFO L263 TraceCheckSpWp]: Trace formula consists of 122 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-23 15:40:43,678 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 15:40:43,709 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 15:40:43,709 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-23 15:40:43,710 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1826998147] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 15:40:43,710 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 15:40:43,710 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-23 15:40:43,710 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1456603370] [2022-11-23 15:40:43,711 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 15:40:43,711 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-23 15:40:43,712 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 15:40:43,713 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-23 15:40:43,713 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 15:40:43,714 INFO L87 Difference]: Start difference. First operand 150 states and 183 transitions. Second operand has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 2 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 15:40:45,838 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.07s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-23 15:40:45,840 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 15:40:45,840 INFO L93 Difference]: Finished difference Result 342 states and 425 transitions. [2022-11-23 15:40:45,847 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-23 15:40:45,847 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 2 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 17 [2022-11-23 15:40:45,847 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 15:40:45,850 INFO L225 Difference]: With dead ends: 342 [2022-11-23 15:40:45,850 INFO L226 Difference]: Without dead ends: 290 [2022-11-23 15:40:45,851 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 15:40:45,852 INFO L413 NwaCegarLoop]: 173 mSDtfsCounter, 149 mSDsluCounter, 162 mSDsCounter, 0 mSdLazyCounter, 40 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 160 SdHoareTripleChecker+Valid, 335 SdHoareTripleChecker+Invalid, 41 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 40 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2022-11-23 15:40:45,853 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [160 Valid, 335 Invalid, 41 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 40 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2022-11-23 15:40:45,855 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 290 states. [2022-11-23 15:40:45,872 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 290 to 151. [2022-11-23 15:40:45,873 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 151 states, 136 states have (on average 1.1911764705882353) internal successors, (162), 142 states have internal predecessors, (162), 11 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (11), 7 states have call predecessors, (11), 11 states have call successors, (11) [2022-11-23 15:40:45,874 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 151 states to 151 states and 184 transitions. [2022-11-23 15:40:45,875 INFO L78 Accepts]: Start accepts. Automaton has 151 states and 184 transitions. Word has length 17 [2022-11-23 15:40:45,875 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 15:40:45,875 INFO L495 AbstractCegarLoop]: Abstraction has 151 states and 184 transitions. [2022-11-23 15:40:45,875 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 2 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 15:40:45,876 INFO L276 IsEmpty]: Start isEmpty. Operand 151 states and 184 transitions. [2022-11-23 15:40:45,877 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2022-11-23 15:40:45,878 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 15:40:45,878 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 15:40:45,884 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27227fb6-e2ce-416f-8679-07030611b569/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-11-23 15:40:46,084 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27227fb6-e2ce-416f-8679-07030611b569/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 15:40:46,085 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 15:40:46,086 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 15:40:46,086 INFO L85 PathProgramCache]: Analyzing trace with hash 700872651, now seen corresponding path program 1 times [2022-11-23 15:40:46,086 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 15:40:46,086 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1739721831] [2022-11-23 15:40:46,086 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:40:46,087 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 15:40:46,515 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-23 15:40:46,520 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [387586522] [2022-11-23 15:40:46,520 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:40:46,520 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 15:40:46,521 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27227fb6-e2ce-416f-8679-07030611b569/bin/utaipan-Q6hlc19bkW/z3 [2022-11-23 15:40:46,527 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27227fb6-e2ce-416f-8679-07030611b569/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-23 15:40:46,546 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27227fb6-e2ce-416f-8679-07030611b569/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-23 15:40:47,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:40:47,927 INFO L263 TraceCheckSpWp]: Trace formula consists of 3112 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-23 15:40:47,932 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 15:40:48,048 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 15:40:48,049 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-23 15:40:48,143 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 15:40:48,143 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 15:40:48,143 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1739721831] [2022-11-23 15:40:48,143 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-23 15:40:48,144 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [387586522] [2022-11-23 15:40:48,144 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [387586522] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-23 15:40:48,144 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1738976461] [2022-11-23 15:40:48,165 INFO L159 IcfgInterpreter]: Started Sifa with 61 locations of interest [2022-11-23 15:40:48,165 INFO L166 IcfgInterpreter]: Building call graph [2022-11-23 15:40:48,169 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-23 15:40:48,174 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-23 15:40:48,175 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-23 15:40:48,331 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:40:48,360 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-11-23 15:40:48,361 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 [2022-11-23 15:40:48,374 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:40:48,375 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 [2022-11-23 15:40:48,421 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:40:48,422 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 [2022-11-23 15:40:48,431 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:40:48,432 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 15:40:48,434 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:40:48,447 INFO L321 Elim1Store]: treesize reduction 13, result has 45.8 percent of original size [2022-11-23 15:40:48,447 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 33 treesize of output 43 [2022-11-23 15:40:48,463 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:40:48,464 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:40:48,501 INFO L321 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2022-11-23 15:40:48,502 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 [2022-11-23 15:40:48,526 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:40:48,529 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 7 [2022-11-23 15:40:48,539 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:40:48,541 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:40:48,542 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 8 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 30 [2022-11-23 15:40:49,115 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 [2022-11-23 15:40:49,146 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:40:49,148 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:40:49,149 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:40:49,150 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:40:49,151 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:40:49,152 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:40:49,154 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:40:49,155 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:40:49,156 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:40:49,158 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:40:49,159 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:40:49,161 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:40:49,162 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:40:49,178 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 25 disjoint index pairs (out of 28 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 9896990 treesize of output 5376278 [2022-11-23 15:40:49,217 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:40:49,218 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:40:49,219 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:40:49,220 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:40:49,221 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:40:49,223 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:40:49,224 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:40:49,225 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:40:49,226 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:40:49,227 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:40:49,229 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:40:49,230 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:40:49,232 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:40:49,243 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 25 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 0 case distinctions, treesize of input 9075036 treesize of output 5376290 [2022-11-23 15:40:49,307 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 [2022-11-23 15:40:49,742 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 [2022-11-23 15:40:49,767 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 [2022-11-23 15:40:49,787 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:40:49,789 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:40:49,790 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:40:49,791 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:40:49,793 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:40:49,796 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:40:49,816 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:40:49,817 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:40:49,819 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:40:49,820 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:40:49,821 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:40:49,823 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:40:49,824 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:40:49,842 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 25 disjoint index pairs (out of 28 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 9896990 treesize of output 5376278 [2022-11-23 15:40:49,883 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:40:49,885 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:40:49,886 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:40:49,887 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:40:49,888 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:40:49,890 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:40:49,891 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:40:49,892 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:40:49,894 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:40:49,895 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:40:49,896 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:40:49,897 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:40:49,899 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:40:49,903 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 25 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 0 case distinctions, treesize of input 9075036 treesize of output 5376290 [2022-11-23 15:40:49,953 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-23 15:40:57,085 WARN L233 SmtUtils]: Spent 5.48s on a formula simplification. DAG size of input: 235 DAG size of output: 220 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-23 15:41:04,586 WARN L233 SmtUtils]: Spent 5.39s on a formula simplification. DAG size of input: 251 DAG size of output: 236 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-23 15:41:04,592 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [1738976461] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 15:41:04,592 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-11-23 15:41:04,593 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [3, 3] total 11 [2022-11-23 15:41:04,593 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [489060022] [2022-11-23 15:41:04,594 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 15:41:04,594 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-23 15:41:04,594 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 15:41:04,594 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-23 15:41:04,595 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=62, Invalid=69, Unknown=1, NotChecked=0, Total=132 [2022-11-23 15:41:04,595 INFO L87 Difference]: Start difference. First operand 151 states and 184 transitions. Second operand has 8 states, 8 states have (on average 7.625) internal successors, (61), 7 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 15:41:07,025 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2022-11-23 15:41:09,096 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2022-11-23 15:41:16,838 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2022-11-23 15:41:18,350 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.21s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-23 15:41:19,922 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.57s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-23 15:41:21,267 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.34s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2022-11-23 15:41:21,982 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 15:41:21,982 INFO L93 Difference]: Finished difference Result 310 states and 378 transitions. [2022-11-23 15:41:21,982 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-23 15:41:21,982 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 7.625) internal successors, (61), 7 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 61 [2022-11-23 15:41:21,983 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 15:41:21,983 INFO L225 Difference]: With dead ends: 310 [2022-11-23 15:41:21,983 INFO L226 Difference]: Without dead ends: 161 [2022-11-23 15:41:21,985 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 181 GetRequests, 171 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 14.6s TimeCoverageRelationStatistics Valid=62, Invalid=69, Unknown=1, NotChecked=0, Total=132 [2022-11-23 15:41:21,985 INFO L413 NwaCegarLoop]: 161 mSDtfsCounter, 14 mSDsluCounter, 441 mSDsCounter, 0 mSdLazyCounter, 314 mSolverCounterSat, 6 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 17.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 602 SdHoareTripleChecker+Invalid, 323 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 314 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 17.3s IncrementalHoareTripleChecker+Time [2022-11-23 15:41:21,986 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 602 Invalid, 323 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 314 Invalid, 3 Unknown, 0 Unchecked, 17.3s Time] [2022-11-23 15:41:21,987 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 161 states. [2022-11-23 15:41:22,004 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 161 to 161. [2022-11-23 15:41:22,005 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 161 states, 146 states have (on average 1.178082191780822) internal successors, (172), 152 states have internal predecessors, (172), 11 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (11), 7 states have call predecessors, (11), 11 states have call successors, (11) [2022-11-23 15:41:22,006 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 161 states to 161 states and 194 transitions. [2022-11-23 15:41:22,006 INFO L78 Accepts]: Start accepts. Automaton has 161 states and 194 transitions. Word has length 61 [2022-11-23 15:41:22,007 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 15:41:22,007 INFO L495 AbstractCegarLoop]: Abstraction has 161 states and 194 transitions. [2022-11-23 15:41:22,007 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 7.625) internal successors, (61), 7 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 15:41:22,007 INFO L276 IsEmpty]: Start isEmpty. Operand 161 states and 194 transitions. [2022-11-23 15:41:22,009 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2022-11-23 15:41:22,009 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 15:41:22,010 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 15:41:22,022 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27227fb6-e2ce-416f-8679-07030611b569/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2022-11-23 15:41:22,222 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27227fb6-e2ce-416f-8679-07030611b569/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 15:41:22,222 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 15:41:22,223 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 15:41:22,223 INFO L85 PathProgramCache]: Analyzing trace with hash -385397690, now seen corresponding path program 1 times [2022-11-23 15:41:22,223 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 15:41:22,223 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [558048181] [2022-11-23 15:41:22,223 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:41:22,223 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 15:41:22,401 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-23 15:41:22,401 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1118780268] [2022-11-23 15:41:22,401 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:41:22,401 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 15:41:22,402 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27227fb6-e2ce-416f-8679-07030611b569/bin/utaipan-Q6hlc19bkW/z3 [2022-11-23 15:41:22,403 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27227fb6-e2ce-416f-8679-07030611b569/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-23 15:41:22,434 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27227fb6-e2ce-416f-8679-07030611b569/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-11-23 15:41:23,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:41:23,639 INFO L263 TraceCheckSpWp]: Trace formula consists of 2249 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-23 15:41:23,645 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 15:41:23,769 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-11-23 15:41:23,769 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-23 15:41:23,914 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-11-23 15:41:23,914 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 15:41:23,914 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [558048181] [2022-11-23 15:41:23,914 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-23 15:41:23,914 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1118780268] [2022-11-23 15:41:23,916 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1118780268] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-23 15:41:23,917 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [686883420] [2022-11-23 15:41:23,923 INFO L159 IcfgInterpreter]: Started Sifa with 71 locations of interest [2022-11-23 15:41:23,923 INFO L166 IcfgInterpreter]: Building call graph [2022-11-23 15:41:23,924 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-23 15:41:23,924 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-23 15:41:23,924 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-23 15:41:24,022 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:41:24,042 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-11-23 15:41:24,042 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 [2022-11-23 15:41:24,056 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:41:24,057 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 [2022-11-23 15:41:24,084 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:41:24,085 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:41:24,119 INFO L321 Elim1Store]: treesize reduction 20, result has 48.7 percent of original size [2022-11-23 15:41:24,120 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 [2022-11-23 15:41:24,142 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:41:24,143 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 [2022-11-23 15:41:24,156 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:41:24,158 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:41:24,197 INFO L321 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2022-11-23 15:41:24,198 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 [2022-11-23 15:41:24,213 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:41:24,214 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 15:41:24,215 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 5 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 39 [2022-11-23 15:41:24,234 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:41:24,235 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 7 [2022-11-23 15:41:24,604 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 [2022-11-23 15:41:24,626 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 [2022-11-23 15:41:24,644 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:41:24,646 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:41:24,647 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:41:24,648 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:41:24,649 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:41:24,651 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:41:24,652 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:41:24,653 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:41:24,655 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:41:24,657 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:41:24,658 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:41:24,659 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:41:24,660 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:41:24,675 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 25 disjoint index pairs (out of 28 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 9896990 treesize of output 5376278 [2022-11-23 15:41:24,706 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:41:24,708 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:41:24,709 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:41:24,710 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:41:24,711 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:41:24,712 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:41:24,713 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:41:24,714 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:41:24,715 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:41:24,716 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:41:24,717 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:41:24,718 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:41:24,719 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:41:24,722 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 25 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 0 case distinctions, treesize of input 9896988 treesize of output 5376290 [2022-11-23 15:41:24,776 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 [2022-11-23 15:41:24,791 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 [2022-11-23 15:41:24,812 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:41:24,814 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:41:24,815 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:41:24,816 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:41:24,817 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:41:24,818 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:41:24,819 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:41:24,821 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:41:24,822 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:41:24,823 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:41:24,824 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:41:24,825 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:41:24,827 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:41:24,828 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:41:24,829 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:41:24,830 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:41:24,831 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:41:24,850 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 32 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 0 case distinctions, treesize of input 9075051 treesize of output 5376293 [2022-11-23 15:41:24,884 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:41:24,885 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:41:24,886 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:41:24,887 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:41:24,889 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:41:24,890 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:41:24,891 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:41:24,892 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:41:24,893 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:41:24,894 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:41:24,895 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:41:24,896 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:41:24,897 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:41:24,898 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:41:24,899 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:41:24,900 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:41:24,901 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:41:24,904 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 32 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 0 case distinctions, treesize of input 9075051 treesize of output 5376293 [2022-11-23 15:41:24,964 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:41:24,965 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:41:24,966 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:41:24,969 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:41:24,970 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:41:24,971 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:41:24,972 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:41:24,973 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:41:24,974 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:41:24,975 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:41:24,976 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:41:24,977 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:41:24,978 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:41:24,979 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:41:24,980 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:41:24,981 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:41:24,982 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:41:24,985 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 32 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 0 case distinctions, treesize of input 9075051 treesize of output 5376293 [2022-11-23 15:41:25,018 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 [2022-11-23 15:41:25,044 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 [2022-11-23 15:41:25,063 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:41:25,065 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:41:25,066 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:41:25,121 INFO L321 Elim1Store]: treesize reduction 48, result has 48.9 percent of original size [2022-11-23 15:41:25,121 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 33 treesize of output 74 [2022-11-23 15:41:25,145 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:41:25,146 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:41:25,148 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:41:25,213 INFO L321 Elim1Store]: treesize reduction 90, result has 33.8 percent of original size [2022-11-23 15:41:25,213 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 [2022-11-23 15:41:25,913 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 [2022-11-23 15:41:25,969 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 [2022-11-23 15:41:25,992 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:41:25,993 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:41:25,994 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:41:25,995 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:41:25,996 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:41:25,997 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:41:25,999 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:41:26,000 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:41:26,001 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:41:26,002 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:41:26,003 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:41:26,004 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:41:26,006 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:41:26,022 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 25 disjoint index pairs (out of 28 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 9896990 treesize of output 5376278 [2022-11-23 15:41:26,051 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:41:26,052 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:41:26,053 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:41:26,054 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:41:26,055 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:41:26,056 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:41:26,057 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:41:26,058 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:41:26,060 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:41:26,061 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:41:26,062 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:41:26,063 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:41:26,064 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:41:26,066 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 25 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 0 case distinctions, treesize of input 9896988 treesize of output 5376290 [2022-11-23 15:41:26,151 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:41:26,153 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:41:26,154 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:41:26,155 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:41:26,156 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:41:26,157 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:41:26,159 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:41:26,160 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:41:26,161 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:41:26,162 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:41:26,164 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:41:26,165 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:41:26,166 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:41:26,167 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:41:26,168 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:41:26,169 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:41:26,170 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:41:26,185 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 32 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 0 case distinctions, treesize of input 9897003 treesize of output 5376293 [2022-11-23 15:41:26,216 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:41:26,217 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:41:26,218 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:41:26,219 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:41:26,220 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:41:26,222 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:41:26,223 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:41:26,224 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:41:26,225 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:41:26,226 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:41:26,227 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:41:26,228 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:41:26,229 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:41:26,231 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:41:26,232 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:41:26,233 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:41:26,234 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:41:26,236 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 32 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 0 case distinctions, treesize of input 9897003 treesize of output 5376293 [2022-11-23 15:41:26,270 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 [2022-11-23 15:41:26,284 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 [2022-11-23 15:41:26,337 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 [2022-11-23 15:41:26,354 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:41:26,355 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:41:26,356 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:41:26,357 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:41:26,358 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:41:26,359 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:41:26,360 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:41:26,361 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:41:26,362 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:41:26,363 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:41:26,364 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:41:26,365 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:41:26,366 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:41:26,367 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:41:26,368 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:41:26,369 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:41:26,370 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:41:26,373 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 32 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 0 case distinctions, treesize of input 9075051 treesize of output 5376293 [2022-11-23 15:41:26,416 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 [2022-11-23 15:41:26,433 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:41:26,434 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:41:26,435 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:41:26,495 INFO L321 Elim1Store]: treesize reduction 90, result has 33.8 percent of original size [2022-11-23 15:41:26,495 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 [2022-11-23 15:41:26,533 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:41:26,535 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:41:26,536 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:41:26,539 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 [2022-11-23 15:41:26,948 INFO L197 IcfgInterpreter]: Interpreting procedure #Ultimate.C_memset with input of size 253 for LOIs [2022-11-23 15:41:27,062 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-23 15:41:33,594 WARN L233 SmtUtils]: Spent 5.41s on a formula simplification. DAG size of input: 235 DAG size of output: 220 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-23 15:41:41,111 WARN L233 SmtUtils]: Spent 5.41s on a formula simplification. DAG size of input: 251 DAG size of output: 236 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-23 15:41:51,124 WARN L233 SmtUtils]: Spent 5.88s on a formula simplification. DAG size of input: 262 DAG size of output: 248 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-23 15:42:03,508 WARN L233 SmtUtils]: Spent 6.23s on a formula simplification. DAG size of input: 284 DAG size of output: 262 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-23 15:42:16,949 WARN L233 SmtUtils]: Spent 7.26s on a formula simplification. DAG size of input: 284 DAG size of output: 262 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-23 15:42:18,417 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [686883420] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 15:42:18,417 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-11-23 15:42:18,417 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [4, 4] total 17 [2022-11-23 15:42:18,418 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [411227627] [2022-11-23 15:42:18,418 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 15:42:18,418 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-11-23 15:42:18,419 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 15:42:18,419 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-11-23 15:42:18,419 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=91, Invalid=172, Unknown=9, NotChecked=0, Total=272 [2022-11-23 15:42:18,420 INFO L87 Difference]: Start difference. First operand 161 states and 194 transitions. Second operand has 13 states, 12 states have (on average 5.666666666666667) internal successors, (68), 11 states have internal predecessors, (68), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-23 15:42:21,147 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2022-11-23 15:42:23,416 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2022-11-23 15:42:25,471 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2022-11-23 15:42:27,626 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2022-11-23 15:42:29,639 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2022-11-23 15:42:31,650 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2022-11-23 15:42:33,698 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2022-11-23 15:42:35,721 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2022-11-23 15:42:37,732 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2022-11-23 15:42:39,706 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.71s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-23 15:42:44,157 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 15:42:47,475 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.27s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2022-11-23 15:42:48,822 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.35s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-23 15:42:52,765 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2022-11-23 15:42:54,099 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.33s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-23 15:42:55,346 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 15:42:55,346 INFO L93 Difference]: Finished difference Result 315 states and 384 transitions. [2022-11-23 15:42:55,347 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-11-23 15:42:55,347 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 5.666666666666667) internal successors, (68), 11 states have internal predecessors, (68), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) Word has length 74 [2022-11-23 15:42:55,347 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 15:42:55,348 INFO L225 Difference]: With dead ends: 315 [2022-11-23 15:42:55,348 INFO L226 Difference]: Without dead ends: 166 [2022-11-23 15:42:55,349 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 220 GetRequests, 203 SyntacticMatches, 2 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 86 ImplicationChecksByTransitivity, 51.4s TimeCoverageRelationStatistics Valid=91, Invalid=172, Unknown=9, NotChecked=0, Total=272 [2022-11-23 15:42:55,350 INFO L413 NwaCegarLoop]: 159 mSDtfsCounter, 10 mSDsluCounter, 452 mSDsCounter, 0 mSdLazyCounter, 376 mSolverCounterSat, 6 mSolverCounterUnsat, 11 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 36.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 611 SdHoareTripleChecker+Invalid, 393 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 376 IncrementalHoareTripleChecker+Invalid, 11 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 36.9s IncrementalHoareTripleChecker+Time [2022-11-23 15:42:55,350 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 611 Invalid, 393 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 376 Invalid, 11 Unknown, 0 Unchecked, 36.9s Time] [2022-11-23 15:42:55,351 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 166 states. [2022-11-23 15:42:55,379 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 166 to 166. [2022-11-23 15:42:55,379 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 166 states, 150 states have (on average 1.1733333333333333) internal successors, (176), 156 states have internal predecessors, (176), 12 states have call successors, (12), 3 states have call predecessors, (12), 2 states have return successors, (12), 7 states have call predecessors, (12), 12 states have call successors, (12) [2022-11-23 15:42:55,381 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 166 states to 166 states and 200 transitions. [2022-11-23 15:42:55,381 INFO L78 Accepts]: Start accepts. Automaton has 166 states and 200 transitions. Word has length 74 [2022-11-23 15:42:55,381 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 15:42:55,381 INFO L495 AbstractCegarLoop]: Abstraction has 166 states and 200 transitions. [2022-11-23 15:42:55,382 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 5.666666666666667) internal successors, (68), 11 states have internal predecessors, (68), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-23 15:42:55,382 INFO L276 IsEmpty]: Start isEmpty. Operand 166 states and 200 transitions. [2022-11-23 15:42:55,384 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2022-11-23 15:42:55,384 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 15:42:55,384 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 15:42:55,420 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27227fb6-e2ce-416f-8679-07030611b569/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-11-23 15:42:55,610 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27227fb6-e2ce-416f-8679-07030611b569/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 15:42:55,610 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 15:42:55,611 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 15:42:55,611 INFO L85 PathProgramCache]: Analyzing trace with hash -102741374, now seen corresponding path program 1 times [2022-11-23 15:42:55,611 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 15:42:55,611 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1862857288] [2022-11-23 15:42:55,611 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:42:55,612 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 15:42:55,772 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-23 15:42:55,773 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [526415360] [2022-11-23 15:42:55,773 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:42:55,773 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 15:42:55,773 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27227fb6-e2ce-416f-8679-07030611b569/bin/utaipan-Q6hlc19bkW/z3 [2022-11-23 15:42:55,774 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27227fb6-e2ce-416f-8679-07030611b569/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-23 15:42:55,802 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27227fb6-e2ce-416f-8679-07030611b569/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-11-23 15:42:57,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:42:57,071 INFO L263 TraceCheckSpWp]: Trace formula consists of 2264 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-23 15:42:57,077 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 15:42:57,189 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-11-23 15:42:57,189 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-23 15:42:57,318 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-11-23 15:42:57,318 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 15:42:57,318 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1862857288] [2022-11-23 15:42:57,318 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-23 15:42:57,318 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [526415360] [2022-11-23 15:42:57,318 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [526415360] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-23 15:42:57,318 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [466991347] [2022-11-23 15:42:57,322 INFO L159 IcfgInterpreter]: Started Sifa with 71 locations of interest [2022-11-23 15:42:57,322 INFO L166 IcfgInterpreter]: Building call graph [2022-11-23 15:42:57,323 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-23 15:42:57,323 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-23 15:42:57,323 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-23 15:42:57,382 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:42:57,401 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-11-23 15:42:57,401 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 [2022-11-23 15:42:57,413 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:42:57,415 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 [2022-11-23 15:42:57,491 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:42:57,492 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 [2022-11-23 15:42:57,501 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:42:57,503 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:42:57,535 INFO L321 Elim1Store]: treesize reduction 20, result has 48.7 percent of original size [2022-11-23 15:42:57,536 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 [2022-11-23 15:42:57,560 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:42:57,561 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:42:57,596 INFO L321 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2022-11-23 15:42:57,596 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 [2022-11-23 15:42:57,609 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:42:57,610 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 15:42:57,611 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 5 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 39 [2022-11-23 15:42:57,630 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:42:57,631 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 7 [2022-11-23 15:42:57,922 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 [2022-11-23 15:42:57,944 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:42:57,946 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:42:57,947 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:42:57,948 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:42:57,949 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:42:57,951 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:42:57,952 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:42:57,953 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:42:57,954 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:42:57,955 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:42:57,957 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:42:57,958 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:42:57,959 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:42:57,973 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 25 disjoint index pairs (out of 28 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 9896990 treesize of output 5376278 [2022-11-23 15:42:58,000 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:42:58,001 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:42:58,003 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:42:58,004 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:42:58,005 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:42:58,006 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:42:58,007 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:42:58,008 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:42:58,010 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:42:58,011 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:42:58,012 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:42:58,013 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:42:58,014 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:42:58,016 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 25 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 0 case distinctions, treesize of input 9075036 treesize of output 5376290 [2022-11-23 15:42:58,049 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 [2022-11-23 15:42:58,082 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 [2022-11-23 15:42:58,103 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:42:58,104 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:42:58,105 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:42:58,106 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:42:58,108 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:42:58,109 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:42:58,110 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:42:58,111 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:42:58,112 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:42:58,114 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:42:58,115 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:42:58,117 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:42:58,118 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:42:58,119 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:42:58,121 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:42:58,122 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:42:58,123 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:42:58,144 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 32 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 0 case distinctions, treesize of input 9075051 treesize of output 5376293 [2022-11-23 15:42:58,213 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:42:58,214 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:42:58,216 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:42:58,217 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:42:58,218 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:42:58,219 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:42:58,221 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:42:58,222 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:42:58,223 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:42:58,225 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:42:58,226 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:42:58,227 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:42:58,229 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:42:58,230 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:42:58,231 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:42:58,233 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:42:58,234 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:42:58,236 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 32 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 0 case distinctions, treesize of input 9075051 treesize of output 5376293 [2022-11-23 15:42:58,264 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 [2022-11-23 15:42:58,313 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 [2022-11-23 15:42:58,326 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:42:58,328 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:42:58,329 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:42:58,389 INFO L321 Elim1Store]: treesize reduction 48, result has 48.9 percent of original size [2022-11-23 15:42:58,389 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 33 treesize of output 74 [2022-11-23 15:42:58,408 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:42:58,410 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:42:58,412 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:42:58,478 INFO L321 Elim1Store]: treesize reduction 90, result has 33.8 percent of original size [2022-11-23 15:42:58,478 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 [2022-11-23 15:42:58,508 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:42:58,510 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:42:58,511 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:42:58,513 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:42:58,514 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:42:58,515 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:42:58,517 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:42:58,518 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:42:58,519 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:42:58,521 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:42:58,522 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:42:58,523 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:42:58,525 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:42:58,526 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:42:58,528 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:42:58,529 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:42:58,530 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:42:58,533 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 32 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 0 case distinctions, treesize of input 9075051 treesize of output 5376293 [2022-11-23 15:42:58,571 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 [2022-11-23 15:42:58,723 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 [2022-11-23 15:42:58,728 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 [2022-11-23 15:42:58,734 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 [2022-11-23 15:42:58,760 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 64 treesize of output 63 [2022-11-23 15:42:58,769 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 66 treesize of output 65 [2022-11-23 15:42:58,778 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 64 treesize of output 63 [2022-11-23 15:42:58,799 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 [2022-11-23 15:42:58,805 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 [2022-11-23 15:42:58,811 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 [2022-11-23 15:42:58,880 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:42:58,881 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:42:58,883 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:42:58,884 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:42:58,885 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:42:58,886 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:42:58,887 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:42:58,888 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:42:58,889 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:42:58,891 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:42:58,892 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:42:58,893 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:42:58,894 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:42:58,896 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 9 select indices, 9 select index equivalence classes, 25 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 0 case distinctions, treesize of input 9075032 treesize of output 5376218 [2022-11-23 15:42:58,932 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 [2022-11-23 15:42:58,953 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 [2022-11-23 15:42:59,190 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:42:59,192 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:42:59,193 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:42:59,194 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:42:59,196 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:42:59,197 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:42:59,198 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:42:59,200 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:42:59,201 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:42:59,202 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:42:59,204 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:42:59,205 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:42:59,207 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:42:59,209 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 9 select indices, 9 select index equivalence classes, 25 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 0 case distinctions, treesize of input 9075032 treesize of output 5376218 [2022-11-23 15:42:59,230 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 [2022-11-23 15:42:59,249 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 [2022-11-23 15:43:02,708 INFO L217 Elim1Store]: Index analysis took 3181 ms [2022-11-23 15:43:14,222 WARN L233 SmtUtils]: Spent 11.51s on a formula simplification. DAG size of input: 109 DAG size of output: 31 (called from [L 318] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2022-11-23 15:43:14,222 INFO L321 Elim1Store]: treesize reduction 190, result has 18.1 percent of original size [2022-11-23 15:43:14,223 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 7 select indices, 7 select index equivalence classes, 4 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 22 case distinctions, treesize of input 10752723 treesize of output 10752742 [2022-11-23 15:43:15,597 INFO L217 Elim1Store]: Index analysis took 1167 ms [2022-11-23 15:43:16,409 INFO L321 Elim1Store]: treesize reduction 87, result has 5.4 percent of original size [2022-11-23 15:43:16,410 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 6 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 10752718 treesize of output 10752722 [2022-11-23 15:46:55,304 WARN L233 SmtUtils]: Spent 3.64m on a formula simplification. DAG size of input: 198 DAG size of output: 104 (called from [L 318] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2022-11-23 15:46:55,305 INFO L321 Elim1Store]: treesize reduction 1636, result has 23.4 percent of original size [2022-11-23 15:46:55,306 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 6 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 9 new quantified variables, introduced 18 case distinctions, treesize of input 7904 treesize of output 5832 [2022-11-23 15:46:55,963 INFO L217 Elim1Store]: Index analysis took 222 ms [2022-11-23 15:48:43,586 WARN L233 SmtUtils]: Spent 1.79m on a formula simplification. DAG size of input: 90 DAG size of output: 45 (called from [L 318] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2022-11-23 15:48:43,586 INFO L321 Elim1Store]: treesize reduction 266, result has 31.6 percent of original size [2022-11-23 15:48:43,587 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 7135 treesize of output 5975 [2022-11-23 15:48:52,660 INFO L217 Elim1Store]: Index analysis took 7351 ms