./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/uthash-2.0.2/uthash_BER_test3-1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 839c364b Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_506be0a8-e6a5-477e-a38d-75200be8e647/bin/utaipan-eEHZpOm5b7/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_506be0a8-e6a5-477e-a38d-75200be8e647/bin/utaipan-eEHZpOm5b7/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_506be0a8-e6a5-477e-a38d-75200be8e647/bin/utaipan-eEHZpOm5b7/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_506be0a8-e6a5-477e-a38d-75200be8e647/bin/utaipan-eEHZpOm5b7/config/TaipanReach.xml -i ../../sv-benchmarks/c/uthash-2.0.2/uthash_BER_test3-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_506be0a8-e6a5-477e-a38d-75200be8e647/bin/utaipan-eEHZpOm5b7/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_506be0a8-e6a5-477e-a38d-75200be8e647/bin/utaipan-eEHZpOm5b7 --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 eb2eb63835edf753d5a467feb7a4cdd6d105155177d7d0cab8bf29c1b74dbaf6 --- Real Ultimate output --- This is Ultimate 0.2.2-hotfix-svcomp22-839c364 [2021-11-25 18:45:40,443 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-25 18:45:40,445 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-25 18:45:40,477 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-25 18:45:40,477 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-25 18:45:40,479 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-25 18:45:40,481 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-25 18:45:40,483 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-25 18:45:40,485 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-25 18:45:40,486 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-25 18:45:40,487 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-25 18:45:40,488 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-25 18:45:40,489 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-25 18:45:40,490 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-25 18:45:40,492 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-25 18:45:40,494 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-25 18:45:40,495 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-25 18:45:40,496 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-25 18:45:40,499 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-25 18:45:40,501 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-25 18:45:40,503 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-25 18:45:40,505 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-25 18:45:40,506 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-25 18:45:40,508 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-25 18:45:40,511 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-25 18:45:40,512 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-25 18:45:40,512 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-25 18:45:40,513 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-25 18:45:40,514 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-25 18:45:40,515 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-25 18:45:40,515 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-25 18:45:40,516 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-25 18:45:40,517 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-25 18:45:40,518 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-25 18:45:40,519 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-25 18:45:40,520 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-25 18:45:40,521 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-25 18:45:40,521 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-25 18:45:40,522 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-25 18:45:40,523 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-25 18:45:40,524 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-25 18:45:40,525 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_506be0a8-e6a5-477e-a38d-75200be8e647/bin/utaipan-eEHZpOm5b7/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-11-25 18:45:40,558 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-25 18:45:40,558 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-25 18:45:40,558 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-25 18:45:40,559 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-25 18:45:40,567 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-25 18:45:40,567 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-25 18:45:40,568 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-25 18:45:40,568 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-25 18:45:40,568 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-25 18:45:40,569 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-25 18:45:40,570 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-25 18:45:40,570 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-25 18:45:40,570 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-25 18:45:40,570 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-25 18:45:40,571 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-25 18:45:40,571 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-25 18:45:40,571 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-25 18:45:40,572 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2021-11-25 18:45:40,572 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-25 18:45:40,573 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-25 18:45:40,573 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-25 18:45:40,573 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-25 18:45:40,573 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-25 18:45:40,574 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-25 18:45:40,574 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-25 18:45:40,574 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-25 18:45:40,575 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-25 18:45:40,575 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-25 18:45:40,575 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-25 18:45:40,575 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-25 18:45:40,576 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-25 18:45:40,576 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-25 18:45:40,576 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-25 18:45:40,577 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-25 18:45:40,577 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-25 18:45:40,577 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-25 18:45:40,577 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-25 18:45:40,578 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-25 18:45:40,578 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-25 18:45:40,578 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-25 18:45:40,578 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-25 18:45:40,579 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES 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_506be0a8-e6a5-477e-a38d-75200be8e647/bin/utaipan-eEHZpOm5b7/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_506be0a8-e6a5-477e-a38d-75200be8e647/bin/utaipan-eEHZpOm5b7 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> eb2eb63835edf753d5a467feb7a4cdd6d105155177d7d0cab8bf29c1b74dbaf6 [2021-11-25 18:45:40,884 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-25 18:45:40,915 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-25 18:45:40,918 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-25 18:45:40,919 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-25 18:45:40,920 INFO L275 PluginConnector]: CDTParser initialized [2021-11-25 18:45:40,921 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_506be0a8-e6a5-477e-a38d-75200be8e647/bin/utaipan-eEHZpOm5b7/../../sv-benchmarks/c/uthash-2.0.2/uthash_BER_test3-1.i [2021-11-25 18:45:40,987 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_506be0a8-e6a5-477e-a38d-75200be8e647/bin/utaipan-eEHZpOm5b7/data/b6f98389e/efd5c51605724f2eaeb2a35c1bdfea68/FLAGc33823095 [2021-11-25 18:45:41,624 INFO L306 CDTParser]: Found 1 translation units. [2021-11-25 18:45:41,624 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_506be0a8-e6a5-477e-a38d-75200be8e647/sv-benchmarks/c/uthash-2.0.2/uthash_BER_test3-1.i [2021-11-25 18:45:41,654 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_506be0a8-e6a5-477e-a38d-75200be8e647/bin/utaipan-eEHZpOm5b7/data/b6f98389e/efd5c51605724f2eaeb2a35c1bdfea68/FLAGc33823095 [2021-11-25 18:45:41,842 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_506be0a8-e6a5-477e-a38d-75200be8e647/bin/utaipan-eEHZpOm5b7/data/b6f98389e/efd5c51605724f2eaeb2a35c1bdfea68 [2021-11-25 18:45:41,845 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-25 18:45:41,848 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-25 18:45:41,853 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-25 18:45:41,853 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-25 18:45:41,857 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-25 18:45:41,858 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 06:45:41" (1/1) ... [2021-11-25 18:45:41,860 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@e1d2e70 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:45:41, skipping insertion in model container [2021-11-25 18:45:41,860 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 06:45:41" (1/1) ... [2021-11-25 18:45:41,868 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-25 18:45:41,936 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-25 18:45:42,413 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_506be0a8-e6a5-477e-a38d-75200be8e647/sv-benchmarks/c/uthash-2.0.2/uthash_BER_test3-1.i[33021,33034] [2021-11-25 18:45:42,578 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_506be0a8-e6a5-477e-a38d-75200be8e647/sv-benchmarks/c/uthash-2.0.2/uthash_BER_test3-1.i[44590,44603] [2021-11-25 18:45:42,586 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-25 18:45:42,599 INFO L203 MainTranslator]: Completed pre-run [2021-11-25 18:45:42,627 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_506be0a8-e6a5-477e-a38d-75200be8e647/sv-benchmarks/c/uthash-2.0.2/uthash_BER_test3-1.i[33021,33034] [2021-11-25 18:45:42,697 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_506be0a8-e6a5-477e-a38d-75200be8e647/sv-benchmarks/c/uthash-2.0.2/uthash_BER_test3-1.i[44590,44603] [2021-11-25 18:45:42,702 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-25 18:45:42,749 INFO L208 MainTranslator]: Completed translation [2021-11-25 18:45:42,750 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:45:42 WrapperNode [2021-11-25 18:45:42,750 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-25 18:45:42,751 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-25 18:45:42,752 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-25 18:45:42,752 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-25 18:45:42,759 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:45:42" (1/1) ... [2021-11-25 18:45:42,812 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:45:42" (1/1) ... [2021-11-25 18:45:42,880 INFO L137 Inliner]: procedures = 177, calls = 285, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 1026 [2021-11-25 18:45:42,881 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-25 18:45:42,881 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-25 18:45:42,882 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-25 18:45:42,882 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-25 18:45:42,889 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:45:42" (1/1) ... [2021-11-25 18:45:42,890 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:45:42" (1/1) ... [2021-11-25 18:45:42,912 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:45:42" (1/1) ... [2021-11-25 18:45:42,915 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:45:42" (1/1) ... [2021-11-25 18:45:43,003 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:45:42" (1/1) ... [2021-11-25 18:45:43,034 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:45:42" (1/1) ... [2021-11-25 18:45:43,040 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:45:42" (1/1) ... [2021-11-25 18:45:43,057 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-25 18:45:43,058 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-25 18:45:43,058 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-25 18:45:43,059 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-25 18:45:43,059 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:45:42" (1/1) ... [2021-11-25 18:45:43,069 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-25 18:45:43,083 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_506be0a8-e6a5-477e-a38d-75200be8e647/bin/utaipan-eEHZpOm5b7/z3 [2021-11-25 18:45:43,101 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_506be0a8-e6a5-477e-a38d-75200be8e647/bin/utaipan-eEHZpOm5b7/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-25 18:45:43,119 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_506be0a8-e6a5-477e-a38d-75200be8e647/bin/utaipan-eEHZpOm5b7/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-25 18:45:43,150 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-25 18:45:43,150 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2021-11-25 18:45:43,151 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2021-11-25 18:45:43,151 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-25 18:45:43,151 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2021-11-25 18:45:43,151 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2021-11-25 18:45:43,151 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-25 18:45:43,152 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-25 18:45:43,152 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-25 18:45:43,152 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-25 18:45:43,152 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2021-11-25 18:45:43,152 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-25 18:45:43,152 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-25 18:45:43,153 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-25 18:45:43,153 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-25 18:45:43,153 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-25 18:45:43,420 INFO L236 CfgBuilder]: Building ICFG [2021-11-25 18:45:43,421 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-25 18:45:44,571 INFO L277 CfgBuilder]: Performing block encoding [2021-11-25 18:45:44,989 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-25 18:45:44,990 INFO L301 CfgBuilder]: Removed 63 assume(true) statements. [2021-11-25 18:45:44,993 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 06:45:44 BoogieIcfgContainer [2021-11-25 18:45:44,994 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-25 18:45:44,997 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-25 18:45:44,997 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-25 18:45:45,000 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-25 18:45:45,001 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.11 06:45:41" (1/3) ... [2021-11-25 18:45:45,002 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@746ae211 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 06:45:45, skipping insertion in model container [2021-11-25 18:45:45,002 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:45:42" (2/3) ... [2021-11-25 18:45:45,002 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@746ae211 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 06:45:45, skipping insertion in model container [2021-11-25 18:45:45,003 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 06:45:44" (3/3) ... [2021-11-25 18:45:45,004 INFO L111 eAbstractionObserver]: Analyzing ICFG uthash_BER_test3-1.i [2021-11-25 18:45:45,017 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-25 18:45:45,017 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2021-11-25 18:45:45,080 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-25 18:45:45,096 INFO L339 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, mLoopAccelerationTechnique=FAST_UPR [2021-11-25 18:45:45,100 INFO L340 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2021-11-25 18:45:45,125 INFO L276 IsEmpty]: Start isEmpty. Operand has 123 states, 110 states have (on average 1.8) internal successors, (198), 117 states have internal predecessors, (198), 8 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 4 states have call predecessors, (8), 8 states have call successors, (8) [2021-11-25 18:45:45,130 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2021-11-25 18:45:45,131 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 18:45:45,131 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 18:45:45,132 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-25 18:45:45,138 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 18:45:45,138 INFO L85 PathProgramCache]: Analyzing trace with hash -957118725, now seen corresponding path program 1 times [2021-11-25 18:45:45,150 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 18:45:45,152 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1669197004] [2021-11-25 18:45:45,153 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 18:45:45,154 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 18:45:45,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 18:45:45,330 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 18:45:45,332 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 18:45:45,333 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1669197004] [2021-11-25 18:45:45,334 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1669197004] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 18:45:45,334 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 18:45:45,335 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-25 18:45:45,336 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1321928358] [2021-11-25 18:45:45,337 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 18:45:45,341 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-25 18:45:45,342 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 18:45:45,376 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-25 18:45:45,378 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-25 18:45:45,381 INFO L87 Difference]: Start difference. First operand has 123 states, 110 states have (on average 1.8) internal successors, (198), 117 states have internal predecessors, (198), 8 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 4 states have call predecessors, (8), 8 states have call successors, (8) Second operand has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 18:45:46,229 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 18:45:46,230 INFO L93 Difference]: Finished difference Result 245 states and 432 transitions. [2021-11-25 18:45:46,241 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-25 18:45:46,243 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2021-11-25 18:45:46,243 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 18:45:46,254 INFO L225 Difference]: With dead ends: 245 [2021-11-25 18:45:46,254 INFO L226 Difference]: Without dead ends: 122 [2021-11-25 18:45:46,258 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-25 18:45:46,262 INFO L933 BasicCegarLoop]: 133 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 133 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2021-11-25 18:45:46,263 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 133 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2021-11-25 18:45:46,282 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 122 states. [2021-11-25 18:45:46,309 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 122 to 122. [2021-11-25 18:45:46,311 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 122 states, 110 states have (on average 1.2181818181818183) internal successors, (134), 116 states have internal predecessors, (134), 8 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 4 states have call predecessors, (8), 8 states have call successors, (8) [2021-11-25 18:45:46,314 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 122 states to 122 states and 150 transitions. [2021-11-25 18:45:46,318 INFO L78 Accepts]: Start accepts. Automaton has 122 states and 150 transitions. Word has length 8 [2021-11-25 18:45:46,318 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 18:45:46,318 INFO L470 AbstractCegarLoop]: Abstraction has 122 states and 150 transitions. [2021-11-25 18:45:46,319 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 18:45:46,319 INFO L276 IsEmpty]: Start isEmpty. Operand 122 states and 150 transitions. [2021-11-25 18:45:46,323 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2021-11-25 18:45:46,323 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 18:45:46,324 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 18:45:46,324 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-25 18:45:46,324 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-25 18:45:46,326 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 18:45:46,326 INFO L85 PathProgramCache]: Analyzing trace with hash -1851937168, now seen corresponding path program 1 times [2021-11-25 18:45:46,326 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 18:45:46,327 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2063349003] [2021-11-25 18:45:46,327 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 18:45:46,328 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 18:45:46,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 18:45:46,457 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 18:45:46,458 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 18:45:46,458 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2063349003] [2021-11-25 18:45:46,458 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2063349003] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 18:45:46,459 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 18:45:46,459 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-25 18:45:46,459 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [289878250] [2021-11-25 18:45:46,460 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 18:45:46,461 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-25 18:45:46,461 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 18:45:46,462 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-25 18:45:46,464 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-25 18:45:46,464 INFO L87 Difference]: Start difference. First operand 122 states and 150 transitions. Second operand has 4 states, 4 states have (on average 3.0) internal successors, (12), 3 states have internal predecessors, (12), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 18:45:47,666 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 18:45:47,667 INFO L93 Difference]: Finished difference Result 258 states and 326 transitions. [2021-11-25 18:45:47,674 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-25 18:45:47,674 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 3.0) internal successors, (12), 3 states have internal predecessors, (12), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 13 [2021-11-25 18:45:47,675 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 18:45:47,677 INFO L225 Difference]: With dead ends: 258 [2021-11-25 18:45:47,677 INFO L226 Difference]: Without dead ends: 189 [2021-11-25 18:45:47,678 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-25 18:45:47,680 INFO L933 BasicCegarLoop]: 128 mSDtfsCounter, 73 mSDsluCounter, 247 mSDsCounter, 0 mSdLazyCounter, 99 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 78 SdHoareTripleChecker+Valid, 359 SdHoareTripleChecker+Invalid, 101 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 99 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2021-11-25 18:45:47,681 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [78 Valid, 359 Invalid, 101 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 99 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2021-11-25 18:45:47,682 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 189 states. [2021-11-25 18:45:47,697 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 189 to 124. [2021-11-25 18:45:47,698 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 124 states, 112 states have (on average 1.2142857142857142) internal successors, (136), 118 states have internal predecessors, (136), 8 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 4 states have call predecessors, (8), 8 states have call successors, (8) [2021-11-25 18:45:47,700 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 124 states to 124 states and 152 transitions. [2021-11-25 18:45:47,700 INFO L78 Accepts]: Start accepts. Automaton has 124 states and 152 transitions. Word has length 13 [2021-11-25 18:45:47,700 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 18:45:47,700 INFO L470 AbstractCegarLoop]: Abstraction has 124 states and 152 transitions. [2021-11-25 18:45:47,701 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.0) internal successors, (12), 3 states have internal predecessors, (12), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 18:45:47,701 INFO L276 IsEmpty]: Start isEmpty. Operand 124 states and 152 transitions. [2021-11-25 18:45:47,702 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2021-11-25 18:45:47,702 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 18:45:47,703 INFO L514 BasicCegarLoop]: trace histogram [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] [2021-11-25 18:45:47,703 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-25 18:45:47,703 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-25 18:45:47,704 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 18:45:47,704 INFO L85 PathProgramCache]: Analyzing trace with hash 1227120832, now seen corresponding path program 1 times [2021-11-25 18:45:47,704 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 18:45:47,704 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [917977928] [2021-11-25 18:45:47,704 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 18:45:47,704 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 18:45:47,836 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-25 18:45:47,837 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1878772526] [2021-11-25 18:45:47,837 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 18:45:47,837 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-25 18:45:47,837 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_506be0a8-e6a5-477e-a38d-75200be8e647/bin/utaipan-eEHZpOm5b7/z3 [2021-11-25 18:45:47,839 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_506be0a8-e6a5-477e-a38d-75200be8e647/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-25 18:45:47,840 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_506be0a8-e6a5-477e-a38d-75200be8e647/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-11-25 18:45:48,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 18:45:48,537 INFO L263 TraceCheckSpWp]: Trace formula consists of 1624 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-25 18:45:48,545 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-25 18:45:48,802 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 18:45:48,802 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-25 18:45:48,803 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 18:45:48,803 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [917977928] [2021-11-25 18:45:48,803 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-25 18:45:48,803 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1878772526] [2021-11-25 18:45:48,804 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1878772526] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 18:45:48,804 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 18:45:48,804 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-25 18:45:48,804 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [478051701] [2021-11-25 18:45:48,804 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 18:45:48,805 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-25 18:45:48,805 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 18:45:48,805 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-25 18:45:48,806 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-25 18:45:48,806 INFO L87 Difference]: Start difference. First operand 124 states and 152 transitions. Second operand has 3 states, 3 states have (on average 12.0) internal successors, (36), 2 states have internal predecessors, (36), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 18:45:50,054 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 18:45:50,054 INFO L93 Difference]: Finished difference Result 304 states and 377 transitions. [2021-11-25 18:45:50,060 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-25 18:45:50,060 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 12.0) internal successors, (36), 2 states have internal predecessors, (36), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 37 [2021-11-25 18:45:50,060 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 18:45:50,062 INFO L225 Difference]: With dead ends: 304 [2021-11-25 18:45:50,062 INFO L226 Difference]: Without dead ends: 183 [2021-11-25 18:45:50,063 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-25 18:45:50,065 INFO L933 BasicCegarLoop]: 165 mSDtfsCounter, 58 mSDsluCounter, 127 mSDsCounter, 0 mSdLazyCounter, 53 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 65 SdHoareTripleChecker+Valid, 280 SdHoareTripleChecker+Invalid, 58 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 53 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2021-11-25 18:45:50,065 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [65 Valid, 280 Invalid, 58 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 53 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2021-11-25 18:45:50,067 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 183 states. [2021-11-25 18:45:50,080 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 183 to 167. [2021-11-25 18:45:50,081 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 167 states, 155 states have (on average 1.1935483870967742) internal successors, (185), 161 states have internal predecessors, (185), 8 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 4 states have call predecessors, (8), 8 states have call successors, (8) [2021-11-25 18:45:50,082 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 167 states to 167 states and 201 transitions. [2021-11-25 18:45:50,082 INFO L78 Accepts]: Start accepts. Automaton has 167 states and 201 transitions. Word has length 37 [2021-11-25 18:45:50,083 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 18:45:50,083 INFO L470 AbstractCegarLoop]: Abstraction has 167 states and 201 transitions. [2021-11-25 18:45:50,083 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.0) internal successors, (36), 2 states have internal predecessors, (36), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 18:45:50,083 INFO L276 IsEmpty]: Start isEmpty. Operand 167 states and 201 transitions. [2021-11-25 18:45:50,085 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2021-11-25 18:45:50,085 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 18:45:50,086 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 18:45:50,120 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_506be0a8-e6a5-477e-a38d-75200be8e647/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-11-25 18:45:50,309 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_506be0a8-e6a5-477e-a38d-75200be8e647/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-25 18:45:50,309 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-25 18:45:50,310 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 18:45:50,310 INFO L85 PathProgramCache]: Analyzing trace with hash 2111487482, now seen corresponding path program 1 times [2021-11-25 18:45:50,310 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 18:45:50,310 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1414927628] [2021-11-25 18:45:50,311 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 18:45:50,311 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 18:45:50,363 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-25 18:45:50,363 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [313816012] [2021-11-25 18:45:50,363 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 18:45:50,364 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-25 18:45:50,364 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_506be0a8-e6a5-477e-a38d-75200be8e647/bin/utaipan-eEHZpOm5b7/z3 [2021-11-25 18:45:50,365 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_506be0a8-e6a5-477e-a38d-75200be8e647/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-25 18:45:50,370 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_506be0a8-e6a5-477e-a38d-75200be8e647/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-11-25 18:45:50,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 18:45:50,812 INFO L263 TraceCheckSpWp]: Trace formula consists of 761 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-25 18:45:50,818 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-25 18:45:50,969 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-11-25 18:45:50,997 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2021-11-25 18:45:51,017 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2021-11-25 18:45:51,017 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-25 18:45:51,022 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 18:45:51,022 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1414927628] [2021-11-25 18:45:51,022 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-25 18:45:51,023 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [313816012] [2021-11-25 18:45:51,023 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [313816012] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 18:45:51,023 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 18:45:51,023 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-25 18:45:51,024 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [957290957] [2021-11-25 18:45:51,024 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 18:45:51,025 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-25 18:45:51,025 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 18:45:51,026 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-25 18:45:51,026 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-25 18:45:51,026 INFO L87 Difference]: Start difference. First operand 167 states and 201 transitions. Second operand has 4 states, 4 states have (on average 10.5) internal successors, (42), 4 states have internal predecessors, (42), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2021-11-25 18:45:52,824 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 18:45:52,825 INFO L93 Difference]: Finished difference Result 231 states and 285 transitions. [2021-11-25 18:45:52,831 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-25 18:45:52,832 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 10.5) internal successors, (42), 4 states have internal predecessors, (42), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 50 [2021-11-25 18:45:52,832 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 18:45:52,834 INFO L225 Difference]: With dead ends: 231 [2021-11-25 18:45:52,834 INFO L226 Difference]: Without dead ends: 212 [2021-11-25 18:45:52,834 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 47 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-25 18:45:52,835 INFO L933 BasicCegarLoop]: 125 mSDtfsCounter, 46 mSDsluCounter, 250 mSDsCounter, 0 mSdLazyCounter, 90 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 46 SdHoareTripleChecker+Valid, 358 SdHoareTripleChecker+Invalid, 92 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 90 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2021-11-25 18:45:52,836 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [46 Valid, 358 Invalid, 92 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 90 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2021-11-25 18:45:52,837 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 212 states. [2021-11-25 18:45:52,852 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 212 to 169. [2021-11-25 18:45:52,853 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 169 states, 157 states have (on average 1.1910828025477707) internal successors, (187), 163 states have internal predecessors, (187), 8 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 4 states have call predecessors, (8), 8 states have call successors, (8) [2021-11-25 18:45:52,854 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 169 states to 169 states and 203 transitions. [2021-11-25 18:45:52,855 INFO L78 Accepts]: Start accepts. Automaton has 169 states and 203 transitions. Word has length 50 [2021-11-25 18:45:52,855 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 18:45:52,855 INFO L470 AbstractCegarLoop]: Abstraction has 169 states and 203 transitions. [2021-11-25 18:45:52,856 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.5) internal successors, (42), 4 states have internal predecessors, (42), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2021-11-25 18:45:52,856 INFO L276 IsEmpty]: Start isEmpty. Operand 169 states and 203 transitions. [2021-11-25 18:45:52,858 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2021-11-25 18:45:52,858 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 18:45:52,858 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 18:45:52,896 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_506be0a8-e6a5-477e-a38d-75200be8e647/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2021-11-25 18:45:53,072 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_506be0a8-e6a5-477e-a38d-75200be8e647/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-25 18:45:53,072 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-25 18:45:53,073 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 18:45:53,073 INFO L85 PathProgramCache]: Analyzing trace with hash -1926488172, now seen corresponding path program 1 times [2021-11-25 18:45:53,073 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 18:45:53,073 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1260949573] [2021-11-25 18:45:53,073 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 18:45:53,074 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 18:45:53,154 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-25 18:45:53,157 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1662711159] [2021-11-25 18:45:53,159 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 18:45:53,160 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-25 18:45:53,160 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_506be0a8-e6a5-477e-a38d-75200be8e647/bin/utaipan-eEHZpOm5b7/z3 [2021-11-25 18:45:53,164 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_506be0a8-e6a5-477e-a38d-75200be8e647/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-25 18:45:53,183 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_506be0a8-e6a5-477e-a38d-75200be8e647/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-11-25 18:45:53,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 18:45:53,651 INFO L263 TraceCheckSpWp]: Trace formula consists of 785 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-25 18:45:53,656 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-25 18:45:53,810 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-11-25 18:45:53,810 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-25 18:45:53,811 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 18:45:53,811 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1260949573] [2021-11-25 18:45:53,811 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-25 18:45:53,811 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1662711159] [2021-11-25 18:45:53,811 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1662711159] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 18:45:53,811 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 18:45:53,812 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-25 18:45:53,812 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1026580461] [2021-11-25 18:45:53,813 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 18:45:53,814 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-25 18:45:53,814 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 18:45:53,815 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-25 18:45:53,815 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-25 18:45:53,815 INFO L87 Difference]: Start difference. First operand 169 states and 203 transitions. Second operand has 4 states, 4 states have (on average 12.75) internal successors, (51), 4 states have internal predecessors, (51), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2021-11-25 18:45:54,585 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 18:45:54,585 INFO L93 Difference]: Finished difference Result 395 states and 492 transitions. [2021-11-25 18:45:54,585 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-25 18:45:54,585 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 12.75) internal successors, (51), 4 states have internal predecessors, (51), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 57 [2021-11-25 18:45:54,586 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 18:45:54,588 INFO L225 Difference]: With dead ends: 395 [2021-11-25 18:45:54,588 INFO L226 Difference]: Without dead ends: 242 [2021-11-25 18:45:54,589 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 55 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-25 18:45:54,590 INFO L933 BasicCegarLoop]: 151 mSDtfsCounter, 257 mSDsluCounter, 154 mSDsCounter, 0 mSdLazyCounter, 82 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 262 SdHoareTripleChecker+Valid, 296 SdHoareTripleChecker+Invalid, 99 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 82 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2021-11-25 18:45:54,591 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [262 Valid, 296 Invalid, 99 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 82 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2021-11-25 18:45:54,592 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 242 states. [2021-11-25 18:45:54,609 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 242 to 214. [2021-11-25 18:45:54,610 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 214 states, 202 states have (on average 1.193069306930693) internal successors, (241), 208 states have internal predecessors, (241), 8 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 4 states have call predecessors, (8), 8 states have call successors, (8) [2021-11-25 18:45:54,612 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 214 states to 214 states and 257 transitions. [2021-11-25 18:45:54,612 INFO L78 Accepts]: Start accepts. Automaton has 214 states and 257 transitions. Word has length 57 [2021-11-25 18:45:54,613 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 18:45:54,613 INFO L470 AbstractCegarLoop]: Abstraction has 214 states and 257 transitions. [2021-11-25 18:45:54,613 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.75) internal successors, (51), 4 states have internal predecessors, (51), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2021-11-25 18:45:54,613 INFO L276 IsEmpty]: Start isEmpty. Operand 214 states and 257 transitions. [2021-11-25 18:45:54,616 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2021-11-25 18:45:54,616 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 18:45:54,616 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 18:45:54,649 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_506be0a8-e6a5-477e-a38d-75200be8e647/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2021-11-25 18:45:54,835 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_506be0a8-e6a5-477e-a38d-75200be8e647/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-25 18:45:54,836 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-25 18:45:54,836 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 18:45:54,836 INFO L85 PathProgramCache]: Analyzing trace with hash 798103091, now seen corresponding path program 1 times [2021-11-25 18:45:54,837 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 18:45:54,837 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1425141253] [2021-11-25 18:45:54,837 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 18:45:54,837 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 18:45:54,907 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-25 18:45:54,909 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1945004246] [2021-11-25 18:45:54,909 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 18:45:54,909 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-25 18:45:54,910 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_506be0a8-e6a5-477e-a38d-75200be8e647/bin/utaipan-eEHZpOm5b7/z3 [2021-11-25 18:45:54,910 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_506be0a8-e6a5-477e-a38d-75200be8e647/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-25 18:45:54,930 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_506be0a8-e6a5-477e-a38d-75200be8e647/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2021-11-25 18:45:56,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 18:45:56,301 INFO L263 TraceCheckSpWp]: Trace formula consists of 810 conjuncts, 7 conjunts are in the unsatisfiable core [2021-11-25 18:45:56,306 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-25 18:45:56,430 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-25 18:45:56,430 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-25 18:45:56,431 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 18:45:56,432 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1425141253] [2021-11-25 18:45:56,432 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-25 18:45:56,432 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1945004246] [2021-11-25 18:45:56,432 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1945004246] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 18:45:56,432 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 18:45:56,433 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-25 18:45:56,433 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1523470532] [2021-11-25 18:45:56,433 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 18:45:56,433 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-25 18:45:56,434 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 18:45:56,434 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-25 18:45:56,434 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-25 18:45:56,435 INFO L87 Difference]: Start difference. First operand 214 states and 257 transitions. Second operand has 4 states, 3 states have (on average 20.0) internal successors, (60), 4 states have internal predecessors, (60), 1 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2021-11-25 18:45:57,952 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 18:45:57,953 INFO L93 Difference]: Finished difference Result 411 states and 498 transitions. [2021-11-25 18:45:57,961 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-25 18:45:57,961 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 20.0) internal successors, (60), 4 states have internal predecessors, (60), 1 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) Word has length 64 [2021-11-25 18:45:57,962 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 18:45:57,963 INFO L225 Difference]: With dead ends: 411 [2021-11-25 18:45:57,963 INFO L226 Difference]: Without dead ends: 216 [2021-11-25 18:45:57,964 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 61 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-25 18:45:57,965 INFO L933 BasicCegarLoop]: 131 mSDtfsCounter, 1 mSDsluCounter, 290 mSDsCounter, 0 mSdLazyCounter, 60 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 389 SdHoareTripleChecker+Invalid, 61 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 60 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2021-11-25 18:45:57,965 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1 Valid, 389 Invalid, 61 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 60 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2021-11-25 18:45:57,966 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 216 states. [2021-11-25 18:45:57,985 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 216 to 216. [2021-11-25 18:45:57,985 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 216 states, 203 states have (on average 1.1970443349753694) internal successors, (243), 210 states have internal predecessors, (243), 8 states have call successors, (8), 2 states have call predecessors, (8), 3 states have return successors, (9), 4 states have call predecessors, (9), 8 states have call successors, (9) [2021-11-25 18:45:57,987 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 216 states to 216 states and 260 transitions. [2021-11-25 18:45:57,987 INFO L78 Accepts]: Start accepts. Automaton has 216 states and 260 transitions. Word has length 64 [2021-11-25 18:45:57,988 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 18:45:57,988 INFO L470 AbstractCegarLoop]: Abstraction has 216 states and 260 transitions. [2021-11-25 18:45:57,988 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 20.0) internal successors, (60), 4 states have internal predecessors, (60), 1 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2021-11-25 18:45:57,988 INFO L276 IsEmpty]: Start isEmpty. Operand 216 states and 260 transitions. [2021-11-25 18:45:57,991 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2021-11-25 18:45:57,991 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 18:45:57,991 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 18:45:58,030 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_506be0a8-e6a5-477e-a38d-75200be8e647/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2021-11-25 18:45:58,212 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_506be0a8-e6a5-477e-a38d-75200be8e647/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-25 18:45:58,212 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-25 18:45:58,212 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 18:45:58,212 INFO L85 PathProgramCache]: Analyzing trace with hash -320971085, now seen corresponding path program 1 times [2021-11-25 18:45:58,212 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 18:45:58,213 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [231256347] [2021-11-25 18:45:58,213 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 18:45:58,213 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 18:45:58,286 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-25 18:45:58,299 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1804671580] [2021-11-25 18:45:58,300 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 18:45:58,300 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-25 18:45:58,300 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_506be0a8-e6a5-477e-a38d-75200be8e647/bin/utaipan-eEHZpOm5b7/z3 [2021-11-25 18:45:58,301 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_506be0a8-e6a5-477e-a38d-75200be8e647/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-25 18:45:58,308 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_506be0a8-e6a5-477e-a38d-75200be8e647/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2021-11-25 18:46:56,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 18:46:56,094 INFO L263 TraceCheckSpWp]: Trace formula consists of 840 conjuncts, 12 conjunts are in the unsatisfiable core [2021-11-25 18:46:56,098 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-25 18:46:56,261 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 5 proven. 3 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-11-25 18:46:56,261 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-25 18:46:56,489 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 7 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-11-25 18:46:56,489 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 18:46:56,489 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [231256347] [2021-11-25 18:46:56,490 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-25 18:46:56,490 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1804671580] [2021-11-25 18:46:56,490 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1804671580] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-25 18:46:56,490 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [694392247] [2021-11-25 18:46:56,511 INFO L159 IcfgInterpreter]: Started Sifa with 60 locations of interest [2021-11-25 18:46:56,511 INFO L166 IcfgInterpreter]: Building call graph [2021-11-25 18:46:56,516 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-11-25 18:46:56,521 INFO L176 IcfgInterpreter]: Starting interpretation [2021-11-25 18:46:56,521 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-11-25 18:46:56,687 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:46:56,690 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 28 [2021-11-25 18:46:56,699 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:46:56,715 INFO L354 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2021-11-25 18:46:56,715 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 [2021-11-25 18:46:56,728 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2021-11-25 18:46:56,734 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2021-11-25 18:46:56,746 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:46:56,748 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 [2021-11-25 18:46:56,797 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:46:56,799 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:46:56,826 INFO L354 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2021-11-25 18:46:56,827 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 [2021-11-25 18:46:56,840 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:46:56,845 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:46:56,848 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 [2021-11-25 18:46:56,857 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:46:56,864 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:46:56,866 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:46:56,866 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:46:56,869 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 52 treesize of output 49 [2021-11-25 18:46:56,907 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:46:56,908 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 [2021-11-25 18:46:56,929 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:46:56,930 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 [2021-11-25 18:46:57,308 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:46:57,309 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:46:57,310 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:46:57,311 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:46:57,312 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:46:57,313 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:46:57,314 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:46:57,315 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:46:57,323 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 14 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 76 treesize of output 64 [2021-11-25 18:46:57,336 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:46:57,337 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:46:57,338 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:46:57,339 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:46:57,340 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:46:57,341 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:46:57,342 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:46:57,342 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:46:57,344 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 14 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 74 treesize of output 76 [2021-11-25 18:46:57,367 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:46:57,368 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:46:57,369 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:46:57,372 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 19 [2021-11-25 18:46:57,395 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:46:57,396 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:46:57,397 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:46:57,400 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 19 [2021-11-25 18:46:57,444 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:46:57,445 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:46:57,446 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:46:57,447 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:46:57,449 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:46:57,450 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:46:57,451 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:46:57,452 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:46:57,453 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:46:57,454 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:46:57,455 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:46:57,456 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:46:57,465 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 18 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 89 treesize of output 79 [2021-11-25 18:46:57,479 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:46:57,480 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:46:57,481 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:46:57,482 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:46:57,483 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:46:57,484 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:46:57,485 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:46:57,486 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:46:57,487 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:46:57,487 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:46:57,488 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:46:57,489 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:46:57,490 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:46:57,494 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 18 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 75 treesize of output 77 [2021-11-25 18:46:57,510 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:46:57,511 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:46:57,512 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:46:57,513 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 [2021-11-25 18:46:57,526 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:46:57,527 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:46:57,528 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:46:57,529 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 [2021-11-25 18:46:57,571 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:46:57,573 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:46:57,574 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:46:57,576 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:46:57,577 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:46:57,578 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:46:57,585 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 [2021-11-25 18:46:57,599 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:46:57,604 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:46:57,605 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:46:57,663 INFO L354 Elim1Store]: treesize reduction 90, result has 33.8 percent of original size [2021-11-25 18:46:57,664 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 [2021-11-25 18:46:57,678 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:46:57,679 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:46:57,681 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:46:57,681 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 [2021-11-25 18:46:57,708 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:46:57,709 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:46:57,710 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:46:57,711 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:46:57,712 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:46:57,713 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:46:57,719 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 [2021-11-25 18:46:57,741 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:46:57,742 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:46:57,743 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:46:57,744 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:46:57,745 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:46:57,746 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:46:57,747 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:46:57,748 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:46:57,749 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:46:57,750 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:46:57,751 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:46:57,752 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:46:57,753 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:46:57,754 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 18 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 75 treesize of output 77 [2021-11-25 18:46:57,863 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-11-25 18:46:57,866 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-11-25 18:46:57,871 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-11-25 18:46:57,922 INFO L354 Elim1Store]: treesize reduction 21, result has 34.4 percent of original size [2021-11-25 18:46:57,922 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 57 treesize of output 60 [2021-11-25 18:46:57,951 INFO L354 Elim1Store]: treesize reduction 19, result has 36.7 percent of original size [2021-11-25 18:46:57,951 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 51 treesize of output 54 [2021-11-25 18:46:57,982 INFO L354 Elim1Store]: treesize reduction 19, result has 36.7 percent of original size [2021-11-25 18:46:57,982 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 47 treesize of output 50 [2021-11-25 18:46:58,031 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 10 [2021-11-25 18:46:58,035 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12 [2021-11-25 18:46:58,040 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 10 [2021-11-25 18:46:58,107 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:46:58,109 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:46:58,109 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:46:58,110 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:46:58,111 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:46:58,112 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:46:58,113 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:46:58,114 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:46:58,115 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:46:58,116 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 7 select indices, 7 select index equivalence classes, 14 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 56 treesize of output 22 [2021-11-25 18:46:58,134 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:46:58,136 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:46:58,137 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:46:58,138 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:46:58,138 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:46:58,139 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:46:58,140 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 [2021-11-25 18:46:58,160 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:46:58,161 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:46:58,161 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:46:58,162 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:46:58,163 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:46:58,164 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:46:58,165 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 [2021-11-25 18:46:58,301 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:46:58,302 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:46:58,303 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:46:58,304 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:46:58,305 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:46:58,306 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:46:58,307 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:46:58,308 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:46:58,309 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:46:58,311 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 7 select indices, 7 select index equivalence classes, 14 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 56 treesize of output 22 [2021-11-25 18:46:58,323 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:46:58,324 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:46:58,325 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:46:58,326 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:46:58,327 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:46:58,328 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:46:58,329 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 [2021-11-25 18:46:58,349 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:46:58,350 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:46:58,350 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:46:58,351 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:46:58,352 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:46:58,353 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:46:58,358 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 [2021-11-25 18:47:04,895 WARN L227 SmtUtils]: Spent 6.36s on a formula simplification. DAG size of input: 66 DAG size of output: 32 (called from [L 351] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2021-11-25 18:47:04,896 INFO L354 Elim1Store]: treesize reduction 348, result has 15.7 percent of original size [2021-11-25 18:47:04,896 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 2 stores, 1 select indices, 1 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 5 new quantified variables, introduced 4 case distinctions, treesize of input 1998 treesize of output 1475 [2021-11-25 18:47:05,001 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:47:14,324 WARN L227 SmtUtils]: Spent 9.30s on a formula simplification. DAG size of input: 90 DAG size of output: 46 (called from [L 351] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2021-11-25 18:47:14,325 INFO L354 Elim1Store]: treesize reduction 262, result has 32.6 percent of original size [2021-11-25 18:47:14,325 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 4 stores, 1 select indices, 1 select index equivalence classes, 5 disjoint index pairs (out of 0 index pairs), introduced 7 new quantified variables, introduced 8 case distinctions, treesize of input 2099 treesize of output 1817 [2021-11-25 18:47:14,711 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:47:14,931 INFO L244 Elim1Store]: Index analysis took 357 ms [2021-11-25 18:47:25,161 WARN L227 SmtUtils]: Spent 9.94s on a formula simplification. DAG size of input: 244 DAG size of output: 142 (called from [L 351] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2021-11-25 18:47:25,161 INFO L354 Elim1Store]: treesize reduction 2566, result has 31.1 percent of original size [2021-11-25 18:47:25,162 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 4 stores, 0 select indices, 0 select index equivalence classes, 8 disjoint index pairs (out of 0 index pairs), introduced 4 new quantified variables, introduced 16 case distinctions, treesize of input 1606 treesize of output 1377 [2021-11-25 18:47:25,688 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:47:25,825 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:47:25,838 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:47:25,850 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:47:25,850 INFO L244 Elim1Store]: Index analysis took 228 ms [2021-11-25 18:47:27,040 INFO L354 Elim1Store]: treesize reduction 72, result has 33.9 percent of original size [2021-11-25 18:47:27,040 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 7 select indices, 7 select index equivalence classes, 17 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 8 case distinctions, treesize of input 42 treesize of output 73 [2021-11-25 18:47:27,254 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:47:27,267 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:47:27,282 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:47:27,291 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:47:27,293 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 19 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 46 [2021-11-25 18:47:27,822 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:47:27,939 INFO L354 Elim1Store]: treesize reduction 32, result has 3.0 percent of original size [2021-11-25 18:47:27,939 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 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 38 treesize of output 20 [2021-11-25 18:47:28,134 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:47:28,342 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-25 18:47:28,343 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 51 treesize of output 61 [2021-11-25 18:47:28,410 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-25 18:47:28,478 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:47:28,490 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:47:28,491 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 18:47:28,492 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 32 [2021-11-25 18:47:28,624 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:47:28,686 INFO L354 Elim1Store]: treesize reduction 28, result has 3.4 percent of original size [2021-11-25 18:47:28,686 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 38 treesize of output 20 [2021-11-25 18:47:28,826 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:47:28,827 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 18:47:28,829 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 55 treesize of output 39 [2021-11-25 18:47:28,870 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-25 18:47:28,904 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-25 18:47:29,052 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:47:29,163 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:47:29,836 INFO L354 Elim1Store]: treesize reduction 20, result has 62.3 percent of original size [2021-11-25 18:47:29,836 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 7 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 5 case distinctions, treesize of input 73 treesize of output 83 [2021-11-25 18:47:29,913 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-25 18:47:29,976 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:47:29,977 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 18:47:29,979 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 16 [2021-11-25 18:47:30,873 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:47:30,928 INFO L244 Elim1Store]: Index analysis took 120 ms [2021-11-25 18:47:33,039 INFO L354 Elim1Store]: treesize reduction 15, result has 99.2 percent of original size [2021-11-25 18:47:33,040 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 6 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 9 case distinctions, treesize of input 3149 treesize of output 4526 [2021-11-25 18:47:33,841 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:47:33,864 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:47:33,971 INFO L244 Elim1Store]: Index analysis took 137 ms [2021-11-25 18:47:34,137 INFO L354 Elim1Store]: treesize reduction 1822, result has 0.1 percent of original size [2021-11-25 18:47:34,137 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 7 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 8 case distinctions, treesize of input 3165 treesize of output 1 [2021-11-25 18:47:34,177 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-25 18:47:34,267 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:47:34,424 INFO L244 Elim1Store]: Index analysis took 180 ms [2021-11-25 18:47:36,866 INFO L354 Elim1Store]: treesize reduction 39, result has 97.9 percent of original size [2021-11-25 18:47:36,866 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 6 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 9 case distinctions, treesize of input 3265 treesize of output 4630 [2021-11-25 18:47:38,950 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-25 18:47:39,008 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-25 18:47:39,061 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-25 18:47:39,110 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-25 18:47:39,188 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-25 18:47:41,998 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:47:42,009 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:47:42,010 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 18:47:42,034 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:47:42,050 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:47:42,103 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:47:42,104 INFO L244 Elim1Store]: Index analysis took 123 ms [2021-11-25 18:47:42,269 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-25 18:47:42,270 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 1 case distinctions, treesize of input 3088 treesize of output 2890 [2021-11-25 18:47:42,395 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-25 18:47:42,452 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-25 18:47:42,498 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-25 18:47:42,546 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-25 18:47:42,636 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-25 18:47:42,799 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:47:42,800 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 18:47:42,826 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:47:42,827 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 18:47:42,851 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:47:42,870 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:47:42,929 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:47:42,930 INFO L244 Elim1Store]: Index analysis took 147 ms [2021-11-25 18:47:43,028 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-25 18:47:43,028 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 1 case distinctions, treesize of input 3188 treesize of output 2984 [2021-11-25 18:47:43,095 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-25 18:47:43,356 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 18:47:43,369 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:47:43,381 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:47:43,382 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 18:47:43,422 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:47:43,441 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:47:43,457 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:47:43,458 INFO L244 Elim1Store]: Index analysis took 102 ms [2021-11-25 18:47:43,497 INFO L354 Elim1Store]: treesize reduction 189, result has 0.5 percent of original size [2021-11-25 18:47:43,497 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 1 case distinctions, treesize of input 3072 treesize of output 1 [2021-11-25 18:47:45,001 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-25 18:47:45,056 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-25 18:47:45,110 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-25 18:47:45,160 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-25 18:47:45,240 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 18:47:45,257 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:47:45,258 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 18:47:45,267 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:47:45,274 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:47:45,276 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 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 3167 treesize of output 2791 [2021-11-25 18:47:45,426 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:47:45,427 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 18:47:45,450 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:47:45,466 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:47:45,468 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 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 3067 treesize of output 2697 [2021-11-25 18:47:45,648 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:47:45,649 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 18:47:45,666 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:47:45,678 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:47:45,679 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 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 3051 treesize of output 2687 [2021-11-25 18:47:46,018 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:47:46,019 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 18:47:46,043 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:47:46,072 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:47:46,684 INFO L354 Elim1Store]: treesize reduction 430, result has 62.8 percent of original size [2021-11-25 18:47:46,685 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 8 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 3128 treesize of output 3414 [2021-11-25 18:47:46,906 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 18:47:46,923 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:47:46,942 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:47:46,998 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:47:47,769 INFO L354 Elim1Store]: treesize reduction 430, result has 63.2 percent of original size [2021-11-25 18:47:47,769 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 8 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 3244 treesize of output 3530 [2021-11-25 18:47:47,873 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-25 18:47:47,920 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-25 18:47:47,955 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-25 18:47:48,031 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-25 18:47:48,183 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:47:48,210 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:47:48,261 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:47:48,376 INFO L354 Elim1Store]: treesize reduction 1160, result has 0.1 percent of original size [2021-11-25 18:47:48,376 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 8 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 3144 treesize of output 2700 [2021-11-25 18:47:49,123 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-25 18:47:49,186 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-25 18:47:49,234 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-25 18:47:49,285 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-25 18:47:49,375 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 18:47:49,399 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:47:49,415 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:47:49,432 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:47:49,438 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 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 3167 treesize of output 2791 [2021-11-25 18:47:49,562 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:47:49,583 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:47:49,595 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:47:49,597 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 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 3067 treesize of output 2697 [2021-11-25 18:47:49,808 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:47:49,808 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 18:47:49,827 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:47:49,838 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:47:49,839 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 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 3051 treesize of output 2687 [2021-11-25 18:47:50,184 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:47:50,185 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 18:47:50,203 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:47:50,204 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 18:47:50,224 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:47:50,244 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:47:50,271 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:47:50,306 INFO L244 Elim1Store]: Index analysis took 146 ms [2021-11-25 18:47:50,326 INFO L354 Elim1Store]: treesize reduction 217, result has 0.5 percent of original size [2021-11-25 18:47:50,327 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 1 case distinctions, treesize of input 3128 treesize of output 2690 [2021-11-25 18:47:50,506 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 18:47:50,528 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:47:50,529 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 18:47:50,549 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:47:50,572 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:47:50,596 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:47:50,614 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:47:50,669 INFO L244 Elim1Store]: Index analysis took 164 ms [2021-11-25 18:47:50,687 INFO L354 Elim1Store]: treesize reduction 217, result has 0.5 percent of original size [2021-11-25 18:47:50,687 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 1 case distinctions, treesize of input 3244 treesize of output 2794 [2021-11-25 18:47:50,745 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-25 18:47:50,792 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-25 18:47:50,847 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-25 18:47:50,929 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-25 18:47:51,056 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:47:51,057 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 18:47:51,072 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:47:51,087 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:47:51,107 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:47:51,135 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:47:51,163 INFO L244 Elim1Store]: Index analysis took 118 ms [2021-11-25 18:47:51,180 INFO L354 Elim1Store]: treesize reduction 217, result has 0.5 percent of original size [2021-11-25 18:47:51,181 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 1 case distinctions, treesize of input 3144 treesize of output 2700 [2021-11-25 18:47:53,793 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:47:53,894 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:47:53,910 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:47:54,011 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:47:54,012 INFO L244 Elim1Store]: Index analysis took 247 ms [2021-11-25 18:48:00,242 WARN L227 SmtUtils]: Spent 5.90s on a formula simplification. DAG size of input: 152 DAG size of output: 122 (called from [L 351] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2021-11-25 18:48:00,243 INFO L354 Elim1Store]: treesize reduction 1554, result has 60.0 percent of original size [2021-11-25 18:48:00,244 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 9 select indices, 9 select index equivalence classes, 9 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 31 case distinctions, treesize of input 137218 treesize of output 137340 [2021-11-25 18:57:01,007 WARN L227 SmtUtils]: Spent 5.37s on a formula simplification that was a NOOP. DAG size: 3651 (called from [L1066] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify)