./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 38b53e6a Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39d2fd50-ed27-4f05-b11a-3a728261a675/bin/utaipan-ByfvJB40ur/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39d2fd50-ed27-4f05-b11a-3a728261a675/bin/utaipan-ByfvJB40ur/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39d2fd50-ed27-4f05-b11a-3a728261a675/bin/utaipan-ByfvJB40ur/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39d2fd50-ed27-4f05-b11a-3a728261a675/bin/utaipan-ByfvJB40ur/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_39d2fd50-ed27-4f05-b11a-3a728261a675/bin/utaipan-ByfvJB40ur/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39d2fd50-ed27-4f05-b11a-3a728261a675/bin/utaipan-ByfvJB40ur --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 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-38b53e6 [2022-11-26 00:40:12,436 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-26 00:40:12,437 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-26 00:40:12,459 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-26 00:40:12,459 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-26 00:40:12,461 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-26 00:40:12,462 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-26 00:40:12,464 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-26 00:40:12,465 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-26 00:40:12,466 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-26 00:40:12,467 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-26 00:40:12,469 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-26 00:40:12,469 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-26 00:40:12,470 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-26 00:40:12,471 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-26 00:40:12,473 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-26 00:40:12,474 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-26 00:40:12,475 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-26 00:40:12,477 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-26 00:40:12,479 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-26 00:40:12,481 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-26 00:40:12,482 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-26 00:40:12,483 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-26 00:40:12,484 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-26 00:40:12,489 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-26 00:40:12,489 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-26 00:40:12,489 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-26 00:40:12,490 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-26 00:40:12,491 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-26 00:40:12,492 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-26 00:40:12,492 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-26 00:40:12,493 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-26 00:40:12,494 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-26 00:40:12,501 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-26 00:40:12,505 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-26 00:40:12,505 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-26 00:40:12,507 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-26 00:40:12,508 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-26 00:40:12,509 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-26 00:40:12,511 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-26 00:40:12,513 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-26 00:40:12,514 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39d2fd50-ed27-4f05-b11a-3a728261a675/bin/utaipan-ByfvJB40ur/config/svcomp-Reach-32bit-Taipan_Default.epf [2022-11-26 00:40:12,542 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-26 00:40:12,544 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-26 00:40:12,545 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-26 00:40:12,545 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-26 00:40:12,546 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-26 00:40:12,547 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-26 00:40:12,547 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-26 00:40:12,547 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-26 00:40:12,547 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-26 00:40:12,548 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-26 00:40:12,549 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-26 00:40:12,549 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-26 00:40:12,549 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-26 00:40:12,550 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-26 00:40:12,550 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-26 00:40:12,550 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-26 00:40:12,550 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-26 00:40:12,551 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-26 00:40:12,551 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-26 00:40:12,552 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-26 00:40:12,552 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-26 00:40:12,552 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-26 00:40:12,552 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-26 00:40:12,553 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-26 00:40:12,553 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-26 00:40:12,553 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-26 00:40:12,554 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-26 00:40:12,554 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-26 00:40:12,554 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-26 00:40:12,555 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-26 00:40:12,555 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-26 00:40:12,555 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-26 00:40:12,556 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-26 00:40:12,556 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-26 00:40:12,556 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-26 00:40:12,556 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-26 00:40:12,557 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-26 00:40:12,557 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-26 00:40:12,557 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-26 00:40:12,557 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-26 00:40:12,558 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-26 00:40:12,558 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_39d2fd50-ed27-4f05-b11a-3a728261a675/bin/utaipan-ByfvJB40ur/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39d2fd50-ed27-4f05-b11a-3a728261a675/bin/utaipan-ByfvJB40ur Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 94599b38b669e42115f92cee257d9ed4ed5d4777dca7d2ee690bacb4e0d226f0 [2022-11-26 00:40:12,864 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-26 00:40:12,904 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-26 00:40:12,907 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-26 00:40:12,908 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-26 00:40:12,909 INFO L275 PluginConnector]: CDTParser initialized [2022-11-26 00:40:12,910 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39d2fd50-ed27-4f05-b11a-3a728261a675/bin/utaipan-ByfvJB40ur/../../sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test5-3.i [2022-11-26 00:40:16,127 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-26 00:40:16,493 INFO L351 CDTParser]: Found 1 translation units. [2022-11-26 00:40:16,493 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39d2fd50-ed27-4f05-b11a-3a728261a675/sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test5-3.i [2022-11-26 00:40:16,510 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39d2fd50-ed27-4f05-b11a-3a728261a675/bin/utaipan-ByfvJB40ur/data/a45335a41/e5d144786f754a00b7db3e4672e12bbf/FLAG98758aa77 [2022-11-26 00:40:16,527 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39d2fd50-ed27-4f05-b11a-3a728261a675/bin/utaipan-ByfvJB40ur/data/a45335a41/e5d144786f754a00b7db3e4672e12bbf [2022-11-26 00:40:16,530 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-26 00:40:16,532 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-26 00:40:16,533 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-26 00:40:16,534 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-26 00:40:16,543 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-26 00:40:16,544 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 12:40:16" (1/1) ... [2022-11-26 00:40:16,545 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6924afb7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:40:16, skipping insertion in model container [2022-11-26 00:40:16,546 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 12:40:16" (1/1) ... [2022-11-26 00:40:16,555 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-26 00:40:16,613 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-26 00:40:17,083 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_39d2fd50-ed27-4f05-b11a-3a728261a675/sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test5-3.i[33021,33034] [2022-11-26 00:40:17,285 WARN L623 FunctionHandler]: Unknown extern function memcmp [2022-11-26 00:40:17,288 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_39d2fd50-ed27-4f05-b11a-3a728261a675/sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test5-3.i[49681,49694] [2022-11-26 00:40:17,312 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-26 00:40:17,324 INFO L203 MainTranslator]: Completed pre-run [2022-11-26 00:40:17,355 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_39d2fd50-ed27-4f05-b11a-3a728261a675/sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test5-3.i[33021,33034] [2022-11-26 00:40:17,480 WARN L623 FunctionHandler]: Unknown extern function memcmp [2022-11-26 00:40:17,483 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_39d2fd50-ed27-4f05-b11a-3a728261a675/sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test5-3.i[49681,49694] [2022-11-26 00:40:17,523 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-26 00:40:17,575 INFO L208 MainTranslator]: Completed translation [2022-11-26 00:40:17,576 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:40:17 WrapperNode [2022-11-26 00:40:17,576 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-26 00:40:17,577 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-26 00:40:17,577 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-26 00:40:17,577 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-26 00:40:17,584 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:40:17" (1/1) ... [2022-11-26 00:40:17,621 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:40:17" (1/1) ... [2022-11-26 00:40:17,694 INFO L138 Inliner]: procedures = 177, calls = 487, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 1686 [2022-11-26 00:40:17,694 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-26 00:40:17,696 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-26 00:40:17,697 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-26 00:40:17,697 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-26 00:40:17,707 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:40:17" (1/1) ... [2022-11-26 00:40:17,708 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:40:17" (1/1) ... [2022-11-26 00:40:17,749 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:40:17" (1/1) ... [2022-11-26 00:40:17,757 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:40:17" (1/1) ... [2022-11-26 00:40:17,849 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:40:17" (1/1) ... [2022-11-26 00:40:17,884 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:40:17" (1/1) ... [2022-11-26 00:40:17,889 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:40:17" (1/1) ... [2022-11-26 00:40:17,900 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:40:17" (1/1) ... [2022-11-26 00:40:17,927 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-26 00:40:17,928 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-26 00:40:17,929 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-26 00:40:17,929 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-26 00:40:17,930 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:40:17" (1/1) ... [2022-11-26 00:40:17,937 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-26 00:40:17,948 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39d2fd50-ed27-4f05-b11a-3a728261a675/bin/utaipan-ByfvJB40ur/z3 [2022-11-26 00:40:17,965 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39d2fd50-ed27-4f05-b11a-3a728261a675/bin/utaipan-ByfvJB40ur/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-26 00:40:17,990 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39d2fd50-ed27-4f05-b11a-3a728261a675/bin/utaipan-ByfvJB40ur/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-26 00:40:18,014 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-26 00:40:18,015 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2022-11-26 00:40:18,015 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2022-11-26 00:40:18,015 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-26 00:40:18,015 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-11-26 00:40:18,015 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-11-26 00:40:18,015 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-26 00:40:18,015 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-26 00:40:18,016 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-26 00:40:18,016 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-26 00:40:18,017 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2022-11-26 00:40:18,017 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-26 00:40:18,017 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-26 00:40:18,017 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-26 00:40:18,017 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-26 00:40:18,017 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-26 00:40:18,339 INFO L235 CfgBuilder]: Building ICFG [2022-11-26 00:40:18,342 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-26 00:40:20,834 INFO L276 CfgBuilder]: Performing block encoding [2022-11-26 00:40:21,621 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-26 00:40:21,621 INFO L300 CfgBuilder]: Removed 100 assume(true) statements. [2022-11-26 00:40:21,626 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 12:40:21 BoogieIcfgContainer [2022-11-26 00:40:21,627 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-26 00:40:21,633 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-26 00:40:21,633 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-26 00:40:21,637 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-26 00:40:21,638 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.11 12:40:16" (1/3) ... [2022-11-26 00:40:21,640 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@77b34b71 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 12:40:21, skipping insertion in model container [2022-11-26 00:40:21,641 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:40:17" (2/3) ... [2022-11-26 00:40:21,642 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@77b34b71 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 12:40:21, skipping insertion in model container [2022-11-26 00:40:21,643 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 12:40:21" (3/3) ... [2022-11-26 00:40:21,644 INFO L112 eAbstractionObserver]: Analyzing ICFG uthash_SFH_test5-3.i [2022-11-26 00:40:21,665 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-26 00:40:21,665 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-11-26 00:40:21,732 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-26 00:40:21,740 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;@1b05a6e4, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-26 00:40:21,741 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-11-26 00:40:21,747 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) [2022-11-26 00:40:21,756 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-11-26 00:40:21,757 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:40:21,757 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2022-11-26 00:40:21,758 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-26 00:40:21,764 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:40:21,765 INFO L85 PathProgramCache]: Analyzing trace with hash 274883441, now seen corresponding path program 1 times [2022-11-26 00:40:21,777 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:40:21,778 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1897009870] [2022-11-26 00:40:21,778 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:40:21,779 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:40:21,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:40:21,949 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:40:21,950 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1897009870] [2022-11-26 00:40:21,950 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unsupported non-linear arithmetic [2022-11-26 00:40:21,951 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1022075839] [2022-11-26 00:40:21,951 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:40:21,951 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-26 00:40:21,952 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39d2fd50-ed27-4f05-b11a-3a728261a675/bin/utaipan-ByfvJB40ur/z3 [2022-11-26 00:40:21,956 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39d2fd50-ed27-4f05-b11a-3a728261a675/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-26 00:40:21,966 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39d2fd50-ed27-4f05-b11a-3a728261a675/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-26 00:40:22,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:40:22,345 INFO L263 TraceCheckSpWp]: Trace formula consists of 67 conjuncts, 1 conjunts are in the unsatisfiable core [2022-11-26 00:40:22,353 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-26 00:40:22,379 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:40:22,379 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-26 00:40:22,380 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1022075839] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:40:22,381 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:40:22,381 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-26 00:40:22,384 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1638015979] [2022-11-26 00:40:22,385 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:40:22,391 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-26 00:40:22,391 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:40:22,433 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-26 00:40:22,434 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-26 00:40:22,437 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) [2022-11-26 00:40:23,701 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:40:23,701 INFO L93 Difference]: Finished difference Result 353 states and 632 transitions. [2022-11-26 00:40:23,707 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-26 00:40:23,709 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 [2022-11-26 00:40:23,709 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:40:23,719 INFO L225 Difference]: With dead ends: 353 [2022-11-26 00:40:23,720 INFO L226 Difference]: Without dead ends: 150 [2022-11-26 00:40:23,724 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 [2022-11-26 00:40:23,729 INFO L413 NwaCegarLoop]: 186 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s 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, 1.2s IncrementalHoareTripleChecker+Time [2022-11-26 00:40:23,730 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 186 Invalid, 29 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 29 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2022-11-26 00:40:23,754 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 150 states. [2022-11-26 00:40:23,787 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 150 to 150. [2022-11-26 00:40:23,789 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) [2022-11-26 00:40:23,792 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 150 states to 150 states and 183 transitions. [2022-11-26 00:40:23,794 INFO L78 Accepts]: Start accepts. Automaton has 150 states and 183 transitions. Word has length 6 [2022-11-26 00:40:23,795 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:40:23,795 INFO L495 AbstractCegarLoop]: Abstraction has 150 states and 183 transitions. [2022-11-26 00:40:23,795 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) [2022-11-26 00:40:23,796 INFO L276 IsEmpty]: Start isEmpty. Operand 150 states and 183 transitions. [2022-11-26 00:40:23,798 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2022-11-26 00:40:23,798 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:40:23,798 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:40:23,811 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39d2fd50-ed27-4f05-b11a-3a728261a675/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-11-26 00:40:24,011 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39d2fd50-ed27-4f05-b11a-3a728261a675/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-26 00:40:24,012 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-26 00:40:24,012 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:40:24,013 INFO L85 PathProgramCache]: Analyzing trace with hash -1671934868, now seen corresponding path program 1 times [2022-11-26 00:40:24,013 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:40:24,013 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1416489771] [2022-11-26 00:40:24,013 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:40:24,013 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:40:24,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:40:24,061 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:40:24,062 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1416489771] [2022-11-26 00:40:24,063 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unsupported non-linear arithmetic [2022-11-26 00:40:24,064 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [336168145] [2022-11-26 00:40:24,064 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:40:24,064 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-26 00:40:24,065 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39d2fd50-ed27-4f05-b11a-3a728261a675/bin/utaipan-ByfvJB40ur/z3 [2022-11-26 00:40:24,067 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39d2fd50-ed27-4f05-b11a-3a728261a675/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-26 00:40:24,080 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39d2fd50-ed27-4f05-b11a-3a728261a675/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-26 00:40:24,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:40:24,441 INFO L263 TraceCheckSpWp]: Trace formula consists of 122 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-26 00:40:24,444 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-26 00:40:24,473 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:40:24,474 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-26 00:40:24,474 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [336168145] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:40:24,474 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:40:24,474 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-26 00:40:24,475 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1011263409] [2022-11-26 00:40:24,475 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:40:24,476 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-26 00:40:24,476 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:40:24,477 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-26 00:40:24,478 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-26 00:40:24,478 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) [2022-11-26 00:40:27,175 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 [] [2022-11-26 00:40:27,177 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:40:27,178 INFO L93 Difference]: Finished difference Result 342 states and 425 transitions. [2022-11-26 00:40:27,186 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-26 00:40:27,186 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 [2022-11-26 00:40:27,186 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:40:27,189 INFO L225 Difference]: With dead ends: 342 [2022-11-26 00:40:27,189 INFO L226 Difference]: Without dead ends: 290 [2022-11-26 00:40:27,190 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 [2022-11-26 00:40:27,192 INFO L413 NwaCegarLoop]: 173 mSDtfsCounter, 149 mSDsluCounter, 162 mSDsCounter, 0 mSdLazyCounter, 40 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s 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, 2.7s IncrementalHoareTripleChecker+Time [2022-11-26 00:40:27,193 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [160 Valid, 335 Invalid, 41 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 40 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time] [2022-11-26 00:40:27,194 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 290 states. [2022-11-26 00:40:27,213 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 290 to 151. [2022-11-26 00:40:27,214 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) [2022-11-26 00:40:27,216 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 151 states to 151 states and 184 transitions. [2022-11-26 00:40:27,216 INFO L78 Accepts]: Start accepts. Automaton has 151 states and 184 transitions. Word has length 17 [2022-11-26 00:40:27,216 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:40:27,217 INFO L495 AbstractCegarLoop]: Abstraction has 151 states and 184 transitions. [2022-11-26 00:40:27,217 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) [2022-11-26 00:40:27,217 INFO L276 IsEmpty]: Start isEmpty. Operand 151 states and 184 transitions. [2022-11-26 00:40:27,219 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2022-11-26 00:40:27,220 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:40:27,220 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] [2022-11-26 00:40:27,243 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39d2fd50-ed27-4f05-b11a-3a728261a675/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-11-26 00:40:27,435 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39d2fd50-ed27-4f05-b11a-3a728261a675/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable1 [2022-11-26 00:40:27,435 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-26 00:40:27,436 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:40:27,436 INFO L85 PathProgramCache]: Analyzing trace with hash 700872651, now seen corresponding path program 1 times [2022-11-26 00:40:27,437 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:40:27,437 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1483353757] [2022-11-26 00:40:27,437 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:40:27,437 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:40:27,822 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-26 00:40:27,823 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [696899775] [2022-11-26 00:40:27,823 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:40:27,824 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-26 00:40:27,824 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39d2fd50-ed27-4f05-b11a-3a728261a675/bin/utaipan-ByfvJB40ur/z3 [2022-11-26 00:40:27,826 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39d2fd50-ed27-4f05-b11a-3a728261a675/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-26 00:40:27,846 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39d2fd50-ed27-4f05-b11a-3a728261a675/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-26 00:40:29,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:40:29,449 INFO L263 TraceCheckSpWp]: Trace formula consists of 3112 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-26 00:40:29,455 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-26 00:40:29,608 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:40:29,608 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-26 00:40:29,725 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:40:29,725 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:40:29,725 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1483353757] [2022-11-26 00:40:29,726 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-26 00:40:29,726 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [696899775] [2022-11-26 00:40:29,726 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [696899775] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-26 00:40:29,727 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [84633164] [2022-11-26 00:40:29,753 INFO L159 IcfgInterpreter]: Started Sifa with 61 locations of interest [2022-11-26 00:40:29,754 INFO L166 IcfgInterpreter]: Building call graph [2022-11-26 00:40:29,761 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-26 00:40:29,769 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-26 00:40:29,769 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-26 00:40:29,966 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:40:30,003 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-11-26 00:40:30,004 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 5 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 2 case distinctions, treesize of input 27 treesize of output 37 [2022-11-26 00:40:30,023 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:40:30,026 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 22 [2022-11-26 00:40:30,087 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:40:30,088 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 7 [2022-11-26 00:40:30,103 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:40:30,107 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-26 00:40:30,110 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:40:30,129 INFO L321 Elim1Store]: treesize reduction 13, result has 45.8 percent of original size [2022-11-26 00:40:30,130 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 [2022-11-26 00:40:30,159 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:40:30,160 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:40:30,209 INFO L321 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2022-11-26 00:40:30,210 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 8 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 4 case distinctions, treesize of input 32 treesize of output 49 [2022-11-26 00:40:30,240 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:40:30,242 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 [2022-11-26 00:40:30,257 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:40:30,259 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:40:30,261 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 [2022-11-26 00:40:30,916 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 19 [2022-11-26 00:40:30,959 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:40:30,960 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:40:30,962 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:40:30,964 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:40:30,965 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:40:30,967 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:40:30,968 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:40:30,970 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:40:30,972 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:40:30,974 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:40:30,976 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:40:30,978 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:40:30,979 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:40:30,998 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 [2022-11-26 00:40:31,057 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:40:31,059 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:40:31,060 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:40:31,062 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:40:31,063 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:40:31,065 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:40:31,066 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:40:31,068 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:40:31,070 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:40:31,071 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:40:31,073 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:40:31,079 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:40:31,080 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:40:31,085 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 [2022-11-26 00:40:31,154 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 19 [2022-11-26 00:40:31,723 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 19 [2022-11-26 00:40:31,744 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 19 [2022-11-26 00:40:31,774 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:40:31,777 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:40:31,779 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:40:31,789 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:40:31,791 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:40:31,793 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:40:31,794 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:40:31,796 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:40:31,798 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:40:31,811 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:40:31,813 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:40:31,815 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:40:31,816 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:40:31,836 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 [2022-11-26 00:40:31,875 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:40:31,877 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:40:31,878 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:40:31,880 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:40:31,881 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:40:31,883 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:40:31,884 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:40:31,886 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:40:31,887 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:40:31,889 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:40:31,890 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:40:31,892 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:40:31,894 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:40:31,898 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 [2022-11-26 00:40:31,971 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-26 00:40:39,611 WARN L233 SmtUtils]: Spent 5.69s 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) [2022-11-26 00:40:47,631 WARN L233 SmtUtils]: Spent 5.90s 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) [2022-11-26 00:40:47,640 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [84633164] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:40:47,641 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-11-26 00:40:47,641 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [3, 3] total 11 [2022-11-26 00:40:47,642 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1181522255] [2022-11-26 00:40:47,643 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:40:47,643 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-26 00:40:47,644 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:40:47,644 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-26 00:40:47,645 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=62, Invalid=69, Unknown=1, NotChecked=0, Total=132 [2022-11-26 00:40:47,645 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) [2022-11-26 00:40:50,166 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] [2022-11-26 00:40:52,238 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2022-11-26 00:40:57,440 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.06s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-26 00:40:59,865 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-26 00:41:01,837 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.47s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-26 00:41:02,932 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:41:02,933 INFO L93 Difference]: Finished difference Result 310 states and 378 transitions. [2022-11-26 00:41:02,933 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-26 00:41:02,934 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 [2022-11-26 00:41:02,934 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:41:02,935 INFO L225 Difference]: With dead ends: 310 [2022-11-26 00:41:02,935 INFO L226 Difference]: Without dead ends: 161 [2022-11-26 00:41:02,937 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 181 GetRequests, 171 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 15.7s TimeCoverageRelationStatistics Valid=62, Invalid=69, Unknown=1, NotChecked=0, Total=132 [2022-11-26 00:41:02,938 INFO L413 NwaCegarLoop]: 161 mSDtfsCounter, 0 mSDsluCounter, 441 mSDsCounter, 0 mSdLazyCounter, 315 mSolverCounterSat, 1 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 14.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 602 SdHoareTripleChecker+Invalid, 319 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 315 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 15.2s IncrementalHoareTripleChecker+Time [2022-11-26 00:41:02,938 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 602 Invalid, 319 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 315 Invalid, 3 Unknown, 0 Unchecked, 15.2s Time] [2022-11-26 00:41:02,939 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 161 states. [2022-11-26 00:41:02,973 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 161 to 161. [2022-11-26 00:41:02,978 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) [2022-11-26 00:41:02,986 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 161 states to 161 states and 194 transitions. [2022-11-26 00:41:02,987 INFO L78 Accepts]: Start accepts. Automaton has 161 states and 194 transitions. Word has length 61 [2022-11-26 00:41:02,987 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:41:02,988 INFO L495 AbstractCegarLoop]: Abstraction has 161 states and 194 transitions. [2022-11-26 00:41:02,989 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) [2022-11-26 00:41:02,989 INFO L276 IsEmpty]: Start isEmpty. Operand 161 states and 194 transitions. [2022-11-26 00:41:02,994 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2022-11-26 00:41:02,995 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:41:02,998 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] [2022-11-26 00:41:03,019 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39d2fd50-ed27-4f05-b11a-3a728261a675/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-11-26 00:41:03,214 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39d2fd50-ed27-4f05-b11a-3a728261a675/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-26 00:41:03,214 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-26 00:41:03,215 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:41:03,215 INFO L85 PathProgramCache]: Analyzing trace with hash -385397690, now seen corresponding path program 1 times [2022-11-26 00:41:03,215 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:41:03,215 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1685494099] [2022-11-26 00:41:03,215 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:41:03,216 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:41:03,476 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-26 00:41:03,476 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [879625764] [2022-11-26 00:41:03,476 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:41:03,476 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-26 00:41:03,477 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39d2fd50-ed27-4f05-b11a-3a728261a675/bin/utaipan-ByfvJB40ur/z3 [2022-11-26 00:41:03,478 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39d2fd50-ed27-4f05-b11a-3a728261a675/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-26 00:41:03,484 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39d2fd50-ed27-4f05-b11a-3a728261a675/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-11-26 00:41:04,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:41:04,943 INFO L263 TraceCheckSpWp]: Trace formula consists of 2249 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-26 00:41:04,950 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-26 00:41:05,104 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-11-26 00:41:05,104 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-26 00:41:05,274 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-11-26 00:41:05,274 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:41:05,274 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1685494099] [2022-11-26 00:41:05,275 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-26 00:41:05,275 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [879625764] [2022-11-26 00:41:05,275 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [879625764] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-26 00:41:05,275 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [618010549] [2022-11-26 00:41:05,287 INFO L159 IcfgInterpreter]: Started Sifa with 71 locations of interest [2022-11-26 00:41:05,288 INFO L166 IcfgInterpreter]: Building call graph [2022-11-26 00:41:05,290 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-26 00:41:05,290 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-26 00:41:05,290 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-26 00:41:05,417 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:41:05,441 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-11-26 00:41:05,442 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 5 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 2 case distinctions, treesize of input 27 treesize of output 37 [2022-11-26 00:41:05,459 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:41:05,460 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 22 [2022-11-26 00:41:05,544 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:41:05,545 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:41:05,585 INFO L321 Elim1Store]: treesize reduction 20, result has 48.7 percent of original size [2022-11-26 00:41:05,586 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 22 treesize of output 38 [2022-11-26 00:41:05,611 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:41:05,612 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 7 [2022-11-26 00:41:05,629 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:41:05,631 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:41:05,681 INFO L321 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2022-11-26 00:41:05,681 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 8 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 4 case distinctions, treesize of input 32 treesize of output 49 [2022-11-26 00:41:05,707 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:41:05,708 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-26 00:41:05,713 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 [2022-11-26 00:41:05,741 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:41:05,742 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 [2022-11-26 00:41:06,149 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 19 [2022-11-26 00:41:06,176 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 19 [2022-11-26 00:41:06,201 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:41:06,203 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:41:06,204 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:41:06,206 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:41:06,207 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:41:06,209 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:41:06,211 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:41:06,212 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:41:06,216 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:41:06,218 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:41:06,219 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:41:06,221 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:41:06,223 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:41:06,242 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 [2022-11-26 00:41:06,279 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:41:06,281 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:41:06,282 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:41:06,283 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:41:06,285 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:41:06,286 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:41:06,288 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:41:06,289 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:41:06,290 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:41:06,292 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:41:06,293 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:41:06,294 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:41:06,296 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:41:06,300 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 [2022-11-26 00:41:06,362 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 31 [2022-11-26 00:41:06,379 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 31 [2022-11-26 00:41:06,404 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:41:06,405 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:41:06,407 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:41:06,408 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:41:06,409 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:41:06,411 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:41:06,412 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:41:06,414 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:41:06,415 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:41:06,416 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:41:06,418 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:41:06,419 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:41:06,420 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:41:06,422 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:41:06,423 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:41:06,424 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:41:06,426 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:41:06,456 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 [2022-11-26 00:41:06,532 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:41:06,533 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:41:06,535 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:41:06,536 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:41:06,537 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:41:06,539 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:41:06,540 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:41:06,543 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:41:06,545 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:41:06,546 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:41:06,547 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:41:06,549 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:41:06,550 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:41:06,551 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:41:06,553 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:41:06,554 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:41:06,555 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:41:06,560 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 [2022-11-26 00:41:06,632 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:41:06,633 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:41:06,635 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:41:06,636 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:41:06,637 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:41:06,638 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:41:06,639 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:41:06,641 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:41:06,642 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:41:06,643 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:41:06,644 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:41:06,646 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:41:06,647 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:41:06,648 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:41:06,649 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:41:06,651 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:41:06,652 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:41:06,655 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 [2022-11-26 00:41:06,692 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 9 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 46 [2022-11-26 00:41:06,723 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 10 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 46 [2022-11-26 00:41:06,743 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:41:06,745 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:41:06,746 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:41:06,801 INFO L321 Elim1Store]: treesize reduction 48, result has 48.9 percent of original size [2022-11-26 00:41:06,801 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 [2022-11-26 00:41:06,827 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:41:06,828 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:41:06,830 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:41:06,906 INFO L321 Elim1Store]: treesize reduction 90, result has 33.8 percent of original size [2022-11-26 00:41:06,906 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 6 select indices, 6 select index equivalence classes, 12 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 6 case distinctions, treesize of input 49 treesize of output 85 [2022-11-26 00:41:07,719 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 19 [2022-11-26 00:41:07,739 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 19 [2022-11-26 00:41:07,771 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:41:07,773 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:41:07,775 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:41:07,776 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:41:07,778 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:41:07,779 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:41:07,781 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:41:07,783 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:41:07,784 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:41:07,786 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:41:07,788 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:41:07,789 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:41:07,791 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:41:07,810 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 [2022-11-26 00:41:07,845 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:41:07,847 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:41:07,848 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:41:07,849 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:41:07,850 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:41:07,851 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:41:07,853 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:41:07,854 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:41:07,855 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:41:07,856 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:41:07,858 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:41:07,859 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:41:07,860 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:41:07,863 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 [2022-11-26 00:41:07,945 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:41:07,947 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:41:07,948 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:41:07,950 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:41:07,951 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:41:07,952 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:41:07,953 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:41:07,955 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:41:07,956 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:41:07,957 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:41:07,959 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:41:07,960 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:41:07,961 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:41:07,962 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:41:07,964 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:41:07,965 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:41:07,966 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:41:07,982 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 [2022-11-26 00:41:08,017 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:41:08,018 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:41:08,020 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:41:08,021 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:41:08,022 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:41:08,023 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:41:08,025 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:41:08,026 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:41:08,027 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:41:08,029 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:41:08,030 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:41:08,031 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:41:08,032 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:41:08,034 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:41:08,035 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:41:08,036 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:41:08,037 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:41:08,040 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 [2022-11-26 00:41:08,082 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 [2022-11-26 00:41:08,098 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 31 [2022-11-26 00:41:08,154 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 9 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 46 [2022-11-26 00:41:08,172 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:41:08,173 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:41:08,174 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:41:08,176 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:41:08,177 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:41:08,178 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:41:08,179 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:41:08,180 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:41:08,181 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:41:08,183 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:41:08,184 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:41:08,185 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:41:08,186 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:41:08,188 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:41:08,189 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:41:08,227 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:41:08,228 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:41:08,231 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 [2022-11-26 00:41:08,273 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 10 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 46 [2022-11-26 00:41:08,289 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:41:08,290 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:41:08,292 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:41:08,357 INFO L321 Elim1Store]: treesize reduction 90, result has 33.8 percent of original size [2022-11-26 00:41:08,357 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 6 select indices, 6 select index equivalence classes, 12 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 6 case distinctions, treesize of input 49 treesize of output 85 [2022-11-26 00:41:08,378 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:41:08,379 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:41:08,381 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:41:08,382 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 13 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 44 [2022-11-26 00:41:08,740 INFO L197 IcfgInterpreter]: Interpreting procedure #Ultimate.C_memset with input of size 253 for LOIs [2022-11-26 00:41:08,926 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-26 00:41:17,545 WARN L233 SmtUtils]: Spent 6.21s 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) [2022-11-26 00:41:25,184 WARN L233 SmtUtils]: Spent 5.49s 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) [2022-11-26 00:41:38,175 WARN L233 SmtUtils]: Spent 8.84s 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) [2022-11-26 00:41:51,039 WARN L233 SmtUtils]: Spent 6.68s 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) [2022-11-26 00:42:04,259 WARN L233 SmtUtils]: Spent 7.02s 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) [2022-11-26 00:42:05,017 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [618010549] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:42:05,017 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-11-26 00:42:05,017 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [4, 4] total 17 [2022-11-26 00:42:05,018 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2134116098] [2022-11-26 00:42:05,018 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:42:05,018 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-11-26 00:42:05,019 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:42:05,020 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-11-26 00:42:05,020 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=91, Invalid=172, Unknown=9, NotChecked=0, Total=272 [2022-11-26 00:42:05,021 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) [2022-11-26 00:42:07,719 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2022-11-26 00:42:09,970 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2022-11-26 00:42:12,013 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2022-11-26 00:42:14,165 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2022-11-26 00:42:16,173 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2022-11-26 00:42:18,186 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2022-11-26 00:42:20,242 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2022-11-26 00:42:22,262 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2022-11-26 00:42:24,276 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2022-11-26 00:42:32,207 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.25s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2022-11-26 00:42:33,510 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.30s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-26 00:42:36,049 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2022-11-26 00:42:38,058 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-26 00:42:38,934 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:42:38,934 INFO L93 Difference]: Finished difference Result 315 states and 384 transitions. [2022-11-26 00:42:38,935 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-11-26 00:42:38,935 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 [2022-11-26 00:42:38,935 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:42:38,936 INFO L225 Difference]: With dead ends: 315 [2022-11-26 00:42:38,937 INFO L226 Difference]: Without dead ends: 166 [2022-11-26 00:42:38,937 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 220 GetRequests, 203 SyntacticMatches, 2 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 86 ImplicationChecksByTransitivity, 56.1s TimeCoverageRelationStatistics Valid=91, Invalid=172, Unknown=9, NotChecked=0, Total=272 [2022-11-26 00:42:38,938 INFO L413 NwaCegarLoop]: 159 mSDtfsCounter, 0 mSDsluCounter, 452 mSDsCounter, 0 mSdLazyCounter, 375 mSolverCounterSat, 0 mSolverCounterUnsat, 11 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 33.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 611 SdHoareTripleChecker+Invalid, 386 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 375 IncrementalHoareTripleChecker+Invalid, 11 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 33.9s IncrementalHoareTripleChecker+Time [2022-11-26 00:42:38,939 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 611 Invalid, 386 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 375 Invalid, 11 Unknown, 0 Unchecked, 33.9s Time] [2022-11-26 00:42:38,940 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 166 states. [2022-11-26 00:42:38,972 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 166 to 166. [2022-11-26 00:42:38,973 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) [2022-11-26 00:42:38,975 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 166 states to 166 states and 200 transitions. [2022-11-26 00:42:38,975 INFO L78 Accepts]: Start accepts. Automaton has 166 states and 200 transitions. Word has length 74 [2022-11-26 00:42:38,975 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:42:38,975 INFO L495 AbstractCegarLoop]: Abstraction has 166 states and 200 transitions. [2022-11-26 00:42:38,975 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) [2022-11-26 00:42:38,976 INFO L276 IsEmpty]: Start isEmpty. Operand 166 states and 200 transitions. [2022-11-26 00:42:38,977 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2022-11-26 00:42:38,977 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:42:38,978 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] [2022-11-26 00:42:38,990 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39d2fd50-ed27-4f05-b11a-3a728261a675/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-11-26 00:42:39,183 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39d2fd50-ed27-4f05-b11a-3a728261a675/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-26 00:42:39,183 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-26 00:42:39,183 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:42:39,183 INFO L85 PathProgramCache]: Analyzing trace with hash -102741374, now seen corresponding path program 1 times [2022-11-26 00:42:39,183 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:42:39,184 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [510155472] [2022-11-26 00:42:39,184 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:42:39,184 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:42:39,370 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-26 00:42:39,370 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1113704778] [2022-11-26 00:42:39,370 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:42:39,371 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-26 00:42:39,371 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39d2fd50-ed27-4f05-b11a-3a728261a675/bin/utaipan-ByfvJB40ur/z3 [2022-11-26 00:42:39,372 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39d2fd50-ed27-4f05-b11a-3a728261a675/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-26 00:42:39,384 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39d2fd50-ed27-4f05-b11a-3a728261a675/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-11-26 00:42:40,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:42:40,865 INFO L263 TraceCheckSpWp]: Trace formula consists of 2264 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-26 00:42:40,880 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-26 00:42:40,999 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-11-26 00:42:40,999 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-26 00:42:41,142 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-11-26 00:42:41,142 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:42:41,142 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [510155472] [2022-11-26 00:42:41,142 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-26 00:42:41,143 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1113704778] [2022-11-26 00:42:41,143 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1113704778] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-26 00:42:41,143 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [158472434] [2022-11-26 00:42:41,147 INFO L159 IcfgInterpreter]: Started Sifa with 71 locations of interest [2022-11-26 00:42:41,147 INFO L166 IcfgInterpreter]: Building call graph [2022-11-26 00:42:41,148 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-26 00:42:41,148 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-26 00:42:41,148 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-26 00:42:41,216 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:42:41,241 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-11-26 00:42:41,242 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 5 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 2 case distinctions, treesize of input 27 treesize of output 37 [2022-11-26 00:42:41,257 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:42:41,258 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 22 [2022-11-26 00:42:41,286 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:42:41,287 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 7 [2022-11-26 00:42:41,295 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:42:41,297 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:42:41,336 INFO L321 Elim1Store]: treesize reduction 20, result has 48.7 percent of original size [2022-11-26 00:42:41,336 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 22 treesize of output 38 [2022-11-26 00:42:41,351 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:42:41,353 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:42:41,398 INFO L321 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2022-11-26 00:42:41,398 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 8 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 4 case distinctions, treesize of input 32 treesize of output 49 [2022-11-26 00:42:41,415 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:42:41,416 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-26 00:42:41,417 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 [2022-11-26 00:42:41,437 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:42:41,439 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 [2022-11-26 00:42:41,794 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 19 [2022-11-26 00:42:41,817 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:42:41,819 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:42:41,820 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:42:41,821 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:42:41,823 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:42:41,824 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:42:41,826 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:42:41,827 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:42:41,828 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:42:41,830 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:42:41,831 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:42:41,833 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:42:41,834 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:42:41,850 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 [2022-11-26 00:42:41,878 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:42:41,879 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:42:41,881 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:42:41,882 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:42:41,883 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:42:41,884 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:42:41,886 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:42:41,887 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:42:41,888 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:42:41,889 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:42:41,891 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:42:41,892 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:42:41,893 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:42:41,896 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 [2022-11-26 00:42:41,936 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 19 [2022-11-26 00:42:41,972 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 31 [2022-11-26 00:42:41,994 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:42:41,995 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:42:41,997 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:42:41,998 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:42:42,000 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:42:42,001 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:42:42,002 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:42:42,004 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:42:42,005 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:42:42,007 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:42:42,008 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:42:42,010 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:42:42,011 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:42:42,012 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:42:42,014 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:42:42,015 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:42:42,017 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:42:42,036 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 [2022-11-26 00:42:42,079 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:42:42,080 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:42:42,081 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:42:42,083 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:42:42,084 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:42:42,085 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:42:42,087 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:42:42,088 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:42:42,090 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:42:42,091 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:42:42,092 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:42:42,094 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:42:42,095 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:42:42,096 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:42:42,098 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:42:42,099 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:42:42,100 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:42:42,103 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 [2022-11-26 00:42:42,133 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 31 [2022-11-26 00:42:42,187 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 10 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 46 [2022-11-26 00:42:42,201 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:42:42,203 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:42:42,205 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:42:42,269 INFO L321 Elim1Store]: treesize reduction 48, result has 48.9 percent of original size [2022-11-26 00:42:42,269 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 [2022-11-26 00:42:42,289 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:42:42,291 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:42:42,292 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:42:42,357 INFO L321 Elim1Store]: treesize reduction 90, result has 33.8 percent of original size [2022-11-26 00:42:42,358 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 6 select indices, 6 select index equivalence classes, 12 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 6 case distinctions, treesize of input 49 treesize of output 85 [2022-11-26 00:42:42,400 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:42:42,402 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:42:42,404 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:42:42,405 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:42:42,407 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:42:42,409 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:42:42,410 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:42:42,412 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:42:42,414 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:42:42,415 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:42:42,417 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:42:42,419 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:42:42,421 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:42:42,422 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:42:42,424 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:42:42,426 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:42:42,427 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:42:42,430 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 [2022-11-26 00:42:42,472 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 9 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 46 [2022-11-26 00:42:42,674 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 10 [2022-11-26 00:42:42,679 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12 [2022-11-26 00:42:42,686 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 10 [2022-11-26 00:42:42,714 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 [2022-11-26 00:42:42,723 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 [2022-11-26 00:42:42,732 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 [2022-11-26 00:42:42,755 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12 [2022-11-26 00:42:42,762 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 10 [2022-11-26 00:42:42,773 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 10 [2022-11-26 00:42:42,853 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:42:42,855 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:42:42,856 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:42:42,857 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:42:42,859 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:42:42,860 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:42:42,861 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:42:42,863 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:42:42,864 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:42:42,866 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:42:42,867 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:42:42,868 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:42:42,870 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:42:42,872 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 [2022-11-26 00:42:42,906 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 9 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 108 treesize of output 42 [2022-11-26 00:42:42,927 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 46 treesize of output 16 [2022-11-26 00:42:43,123 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:42:43,124 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:42:43,126 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:42:43,127 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:42:43,129 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:42:43,130 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:42:43,132 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:42:43,133 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:42:43,134 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:42:43,136 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:42:43,137 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:42:43,139 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:42:43,140 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:42:43,143 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 [2022-11-26 00:42:43,167 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 9 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 108 treesize of output 42 [2022-11-26 00:42:43,190 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 46 treesize of output 16 [2022-11-26 00:42:46,520 INFO L217 Elim1Store]: Index analysis took 2770 ms [2022-11-26 00:42:55,052 WARN L233 SmtUtils]: Spent 8.53s 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) [2022-11-26 00:42:55,053 INFO L321 Elim1Store]: treesize reduction 190, result has 18.1 percent of original size [2022-11-26 00:42:55,054 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 [2022-11-26 00:42:56,473 INFO L217 Elim1Store]: Index analysis took 1196 ms [2022-11-26 00:42:57,079 INFO L321 Elim1Store]: treesize reduction 87, result has 5.4 percent of original size [2022-11-26 00:42:57,080 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 [2022-11-26 00:47:31,342 WARN L233 SmtUtils]: Spent 4.57m 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) [2022-11-26 00:47:31,343 INFO L321 Elim1Store]: treesize reduction 1636, result has 23.4 percent of original size [2022-11-26 00:47:31,343 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 [2022-11-26 00:47:32,013 INFO L217 Elim1Store]: Index analysis took 301 ms [2022-11-26 00:49:04,736 WARN L233 SmtUtils]: Spent 1.55m 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) [2022-11-26 00:49:04,737 INFO L321 Elim1Store]: treesize reduction 266, result has 31.6 percent of original size [2022-11-26 00:49:04,737 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 [2022-11-26 00:49:12,234 INFO L217 Elim1Store]: Index analysis took 5262 ms