./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/uthash-2.0.2/uthash_SAX_test6-2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 2329fc70 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d79c099c-dc9f-4e33-b190-b75825766b1d/bin/utaipan-gh47qXpMRh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d79c099c-dc9f-4e33-b190-b75825766b1d/bin/utaipan-gh47qXpMRh/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d79c099c-dc9f-4e33-b190-b75825766b1d/bin/utaipan-gh47qXpMRh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d79c099c-dc9f-4e33-b190-b75825766b1d/bin/utaipan-gh47qXpMRh/config/TaipanReach.xml -i ../../sv-benchmarks/c/uthash-2.0.2/uthash_SAX_test6-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d79c099c-dc9f-4e33-b190-b75825766b1d/bin/utaipan-gh47qXpMRh/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d79c099c-dc9f-4e33-b190-b75825766b1d/bin/utaipan-gh47qXpMRh --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 bb48026e7f870ff561a4cdd394c24cb5edb1d0f2fc8e8ef2bffe0b7b8438fda4 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-2329fc7 [2022-12-14 03:16:29,535 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-14 03:16:29,537 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-14 03:16:29,556 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-14 03:16:29,557 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-14 03:16:29,558 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-14 03:16:29,559 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-14 03:16:29,560 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-14 03:16:29,562 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-14 03:16:29,563 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-14 03:16:29,564 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-14 03:16:29,565 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-14 03:16:29,565 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-14 03:16:29,566 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-14 03:16:29,567 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-14 03:16:29,568 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-14 03:16:29,569 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-14 03:16:29,570 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-14 03:16:29,571 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-14 03:16:29,573 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-14 03:16:29,574 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-14 03:16:29,576 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-14 03:16:29,576 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-14 03:16:29,577 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-14 03:16:29,579 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-14 03:16:29,579 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-14 03:16:29,579 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-14 03:16:29,580 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-14 03:16:29,580 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-14 03:16:29,581 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-14 03:16:29,581 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-14 03:16:29,581 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-14 03:16:29,582 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-14 03:16:29,582 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-14 03:16:29,583 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-14 03:16:29,583 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-14 03:16:29,583 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-14 03:16:29,584 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-14 03:16:29,584 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-14 03:16:29,584 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-14 03:16:29,585 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-14 03:16:29,585 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d79c099c-dc9f-4e33-b190-b75825766b1d/bin/utaipan-gh47qXpMRh/config/svcomp-Reach-32bit-Taipan_Default.epf [2022-12-14 03:16:29,600 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-14 03:16:29,600 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-14 03:16:29,600 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-14 03:16:29,600 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-14 03:16:29,601 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-14 03:16:29,601 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-14 03:16:29,601 INFO L138 SettingsManager]: * User list type=DISABLED [2022-12-14 03:16:29,601 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-12-14 03:16:29,601 INFO L138 SettingsManager]: * Explicit value domain=true [2022-12-14 03:16:29,601 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-12-14 03:16:29,602 INFO L138 SettingsManager]: * Octagon Domain=false [2022-12-14 03:16:29,602 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-12-14 03:16:29,602 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-12-14 03:16:29,602 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-12-14 03:16:29,602 INFO L138 SettingsManager]: * Interval Domain=false [2022-12-14 03:16:29,602 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-12-14 03:16:29,602 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-12-14 03:16:29,603 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-12-14 03:16:29,603 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-14 03:16:29,603 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-14 03:16:29,603 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-14 03:16:29,603 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-14 03:16:29,603 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-14 03:16:29,604 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-14 03:16:29,604 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-14 03:16:29,604 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-14 03:16:29,604 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-14 03:16:29,604 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-14 03:16:29,604 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-14 03:16:29,604 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-14 03:16:29,604 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-14 03:16:29,605 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-14 03:16:29,605 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 03:16:29,605 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-14 03:16:29,605 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-12-14 03:16:29,605 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-14 03:16:29,605 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-14 03:16:29,605 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-12-14 03:16:29,605 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-14 03:16:29,605 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-14 03:16:29,606 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-12-14 03:16:29,606 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d79c099c-dc9f-4e33-b190-b75825766b1d/bin/utaipan-gh47qXpMRh/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d79c099c-dc9f-4e33-b190-b75825766b1d/bin/utaipan-gh47qXpMRh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> bb48026e7f870ff561a4cdd394c24cb5edb1d0f2fc8e8ef2bffe0b7b8438fda4 [2022-12-14 03:16:29,798 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-14 03:16:29,818 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-14 03:16:29,820 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-14 03:16:29,821 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-14 03:16:29,822 INFO L275 PluginConnector]: CDTParser initialized [2022-12-14 03:16:29,823 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d79c099c-dc9f-4e33-b190-b75825766b1d/bin/utaipan-gh47qXpMRh/../../sv-benchmarks/c/uthash-2.0.2/uthash_SAX_test6-2.i [2022-12-14 03:16:32,371 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-14 03:16:32,612 INFO L351 CDTParser]: Found 1 translation units. [2022-12-14 03:16:32,612 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d79c099c-dc9f-4e33-b190-b75825766b1d/sv-benchmarks/c/uthash-2.0.2/uthash_SAX_test6-2.i [2022-12-14 03:16:32,624 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d79c099c-dc9f-4e33-b190-b75825766b1d/bin/utaipan-gh47qXpMRh/data/f2dac27d0/2eaa05f3a3344482b5794159ad6b655b/FLAG0959dce0c [2022-12-14 03:16:32,956 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d79c099c-dc9f-4e33-b190-b75825766b1d/bin/utaipan-gh47qXpMRh/data/f2dac27d0/2eaa05f3a3344482b5794159ad6b655b [2022-12-14 03:16:32,962 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-14 03:16:32,964 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-14 03:16:32,966 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-14 03:16:32,967 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-14 03:16:32,972 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-14 03:16:32,973 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 03:16:32" (1/1) ... [2022-12-14 03:16:32,974 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@65af0475 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:16:32, skipping insertion in model container [2022-12-14 03:16:32,974 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 03:16:32" (1/1) ... [2022-12-14 03:16:32,981 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-14 03:16:33,018 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-14 03:16:33,322 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d79c099c-dc9f-4e33-b190-b75825766b1d/sv-benchmarks/c/uthash-2.0.2/uthash_SAX_test6-2.i[44118,44131] [2022-12-14 03:16:33,331 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d79c099c-dc9f-4e33-b190-b75825766b1d/sv-benchmarks/c/uthash-2.0.2/uthash_SAX_test6-2.i[44660,44673] [2022-12-14 03:16:33,333 WARN L623 FunctionHandler]: Unknown extern function memcmp [2022-12-14 03:16:33,390 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d79c099c-dc9f-4e33-b190-b75825766b1d/sv-benchmarks/c/uthash-2.0.2/uthash_SAX_test6-2.i[56247,56260] [2022-12-14 03:16:33,390 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d79c099c-dc9f-4e33-b190-b75825766b1d/sv-benchmarks/c/uthash-2.0.2/uthash_SAX_test6-2.i[56368,56381] [2022-12-14 03:16:33,400 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 03:16:33,408 INFO L203 MainTranslator]: Completed pre-run [2022-12-14 03:16:33,432 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d79c099c-dc9f-4e33-b190-b75825766b1d/sv-benchmarks/c/uthash-2.0.2/uthash_SAX_test6-2.i[44118,44131] [2022-12-14 03:16:33,433 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d79c099c-dc9f-4e33-b190-b75825766b1d/sv-benchmarks/c/uthash-2.0.2/uthash_SAX_test6-2.i[44660,44673] [2022-12-14 03:16:33,434 WARN L623 FunctionHandler]: Unknown extern function memcmp [2022-12-14 03:16:33,470 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d79c099c-dc9f-4e33-b190-b75825766b1d/sv-benchmarks/c/uthash-2.0.2/uthash_SAX_test6-2.i[56247,56260] [2022-12-14 03:16:33,471 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d79c099c-dc9f-4e33-b190-b75825766b1d/sv-benchmarks/c/uthash-2.0.2/uthash_SAX_test6-2.i[56368,56381] [2022-12-14 03:16:33,477 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 03:16:33,534 INFO L208 MainTranslator]: Completed translation [2022-12-14 03:16:33,534 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:16:33 WrapperNode [2022-12-14 03:16:33,534 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-14 03:16:33,535 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-14 03:16:33,535 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-14 03:16:33,535 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-14 03:16:33,541 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:16:33" (1/1) ... [2022-12-14 03:16:33,562 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:16:33" (1/1) ... [2022-12-14 03:16:33,605 INFO L138 Inliner]: procedures = 282, calls = 347, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 1195 [2022-12-14 03:16:33,605 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-14 03:16:33,605 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-14 03:16:33,606 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-14 03:16:33,606 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-14 03:16:33,613 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:16:33" (1/1) ... [2022-12-14 03:16:33,613 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:16:33" (1/1) ... [2022-12-14 03:16:33,620 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:16:33" (1/1) ... [2022-12-14 03:16:33,621 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:16:33" (1/1) ... [2022-12-14 03:16:33,651 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:16:33" (1/1) ... [2022-12-14 03:16:33,659 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:16:33" (1/1) ... [2022-12-14 03:16:33,662 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:16:33" (1/1) ... [2022-12-14 03:16:33,665 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:16:33" (1/1) ... [2022-12-14 03:16:33,672 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-14 03:16:33,672 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-14 03:16:33,672 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-14 03:16:33,672 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-14 03:16:33,673 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:16:33" (1/1) ... [2022-12-14 03:16:33,678 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 03:16:33,686 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d79c099c-dc9f-4e33-b190-b75825766b1d/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 03:16:33,696 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d79c099c-dc9f-4e33-b190-b75825766b1d/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-14 03:16:33,698 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d79c099c-dc9f-4e33-b190-b75825766b1d/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-14 03:16:33,728 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-14 03:16:33,728 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2022-12-14 03:16:33,728 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-12-14 03:16:33,728 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-14 03:16:33,728 INFO L130 BoogieDeclarations]: Found specification of procedure alt_bzero [2022-12-14 03:16:33,729 INFO L138 BoogieDeclarations]: Found implementation of procedure alt_bzero [2022-12-14 03:16:33,729 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-12-14 03:16:33,729 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2022-12-14 03:16:33,729 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2022-12-14 03:16:33,729 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-14 03:16:33,729 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-12-14 03:16:33,729 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-14 03:16:33,729 INFO L130 BoogieDeclarations]: Found specification of procedure alt_malloc [2022-12-14 03:16:33,730 INFO L138 BoogieDeclarations]: Found implementation of procedure alt_malloc [2022-12-14 03:16:33,730 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-12-14 03:16:33,730 INFO L130 BoogieDeclarations]: Found specification of procedure alt_free [2022-12-14 03:16:33,730 INFO L138 BoogieDeclarations]: Found implementation of procedure alt_free [2022-12-14 03:16:33,730 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-14 03:16:33,730 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-14 03:16:33,730 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-14 03:16:33,923 INFO L235 CfgBuilder]: Building ICFG [2022-12-14 03:16:33,924 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-14 03:16:34,805 INFO L276 CfgBuilder]: Performing block encoding [2022-12-14 03:16:35,126 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-14 03:16:35,126 INFO L300 CfgBuilder]: Removed 72 assume(true) statements. [2022-12-14 03:16:35,129 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 03:16:35 BoogieIcfgContainer [2022-12-14 03:16:35,129 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-14 03:16:35,131 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-14 03:16:35,131 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-14 03:16:35,134 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-14 03:16:35,134 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.12 03:16:32" (1/3) ... [2022-12-14 03:16:35,134 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@796d069 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 03:16:35, skipping insertion in model container [2022-12-14 03:16:35,135 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:16:33" (2/3) ... [2022-12-14 03:16:35,135 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@796d069 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 03:16:35, skipping insertion in model container [2022-12-14 03:16:35,135 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 03:16:35" (3/3) ... [2022-12-14 03:16:35,136 INFO L112 eAbstractionObserver]: Analyzing ICFG uthash_SAX_test6-2.i [2022-12-14 03:16:35,149 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-14 03:16:35,150 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2022-12-14 03:16:35,185 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-14 03:16:35,189 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@2febe86e, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-14 03:16:35,189 INFO L358 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2022-12-14 03:16:35,193 INFO L276 IsEmpty]: Start isEmpty. Operand has 160 states, 136 states have (on average 1.713235294117647) internal successors, (233), 140 states have internal predecessors, (233), 16 states have call successors, (16), 4 states have call predecessors, (16), 4 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) [2022-12-14 03:16:35,198 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-12-14 03:16:35,198 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 03:16:35,198 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2022-12-14 03:16:35,199 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [alt_freeErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-12-14 03:16:35,202 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 03:16:35,202 INFO L85 PathProgramCache]: Analyzing trace with hash 1734874149, now seen corresponding path program 1 times [2022-12-14 03:16:35,209 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 03:16:35,209 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1961190771] [2022-12-14 03:16:35,209 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 03:16:35,209 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 03:16:35,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 03:16:35,344 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 03:16:35,344 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 03:16:35,345 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1961190771] [2022-12-14 03:16:35,345 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1961190771] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 03:16:35,345 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 03:16:35,345 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-14 03:16:35,346 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1539809235] [2022-12-14 03:16:35,347 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 03:16:35,350 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-12-14 03:16:35,350 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 03:16:35,370 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-12-14 03:16:35,370 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-12-14 03:16:35,372 INFO L87 Difference]: Start difference. First operand has 160 states, 136 states have (on average 1.713235294117647) internal successors, (233), 140 states have internal predecessors, (233), 16 states have call successors, (16), 4 states have call predecessors, (16), 4 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) Second operand has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 03:16:35,810 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 03:16:35,810 INFO L93 Difference]: Finished difference Result 317 states and 538 transitions. [2022-12-14 03:16:35,813 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-12-14 03:16:35,814 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 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 7 [2022-12-14 03:16:35,814 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 03:16:35,820 INFO L225 Difference]: With dead ends: 317 [2022-12-14 03:16:35,820 INFO L226 Difference]: Without dead ends: 157 [2022-12-14 03:16:35,822 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-12-14 03:16:35,824 INFO L413 NwaCegarLoop]: 162 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 162 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-12-14 03:16:35,825 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 162 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-12-14 03:16:35,837 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 157 states. [2022-12-14 03:16:35,854 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 157 to 157. [2022-12-14 03:16:35,855 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 157 states, 134 states have (on average 1.1791044776119404) internal successors, (158), 138 states have internal predecessors, (158), 15 states have call successors, (15), 4 states have call predecessors, (15), 4 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2022-12-14 03:16:35,857 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 157 states to 157 states and 188 transitions. [2022-12-14 03:16:35,858 INFO L78 Accepts]: Start accepts. Automaton has 157 states and 188 transitions. Word has length 7 [2022-12-14 03:16:35,858 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 03:16:35,858 INFO L495 AbstractCegarLoop]: Abstraction has 157 states and 188 transitions. [2022-12-14 03:16:35,859 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 03:16:35,859 INFO L276 IsEmpty]: Start isEmpty. Operand 157 states and 188 transitions. [2022-12-14 03:16:35,859 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-12-14 03:16:35,859 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 03:16:35,859 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 03:16:35,859 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-14 03:16:35,860 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [alt_freeErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-12-14 03:16:35,860 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 03:16:35,860 INFO L85 PathProgramCache]: Analyzing trace with hash 716431104, now seen corresponding path program 1 times [2022-12-14 03:16:35,860 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 03:16:35,860 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1670686338] [2022-12-14 03:16:35,860 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 03:16:35,861 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 03:16:35,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 03:16:35,985 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 03:16:35,985 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 03:16:35,986 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1670686338] [2022-12-14 03:16:35,986 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1670686338] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 03:16:35,986 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 03:16:35,986 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 03:16:35,986 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [14220332] [2022-12-14 03:16:35,986 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 03:16:35,987 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-14 03:16:35,987 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 03:16:35,987 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-14 03:16:35,988 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-14 03:16:35,988 INFO L87 Difference]: Start difference. First operand 157 states and 188 transitions. Second operand has 4 states, 4 states have (on average 2.25) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 03:16:36,956 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 03:16:36,956 INFO L93 Difference]: Finished difference Result 324 states and 391 transitions. [2022-12-14 03:16:36,957 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-14 03:16:36,957 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 2.25) internal successors, (9), 3 states have internal predecessors, (9), 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 9 [2022-12-14 03:16:36,957 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 03:16:36,958 INFO L225 Difference]: With dead ends: 324 [2022-12-14 03:16:36,958 INFO L226 Difference]: Without dead ends: 232 [2022-12-14 03:16:36,959 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-12-14 03:16:36,959 INFO L413 NwaCegarLoop]: 165 mSDtfsCounter, 74 mSDsluCounter, 283 mSDsCounter, 0 mSdLazyCounter, 158 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 81 SdHoareTripleChecker+Valid, 448 SdHoareTripleChecker+Invalid, 160 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 158 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-12-14 03:16:36,960 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [81 Valid, 448 Invalid, 160 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 158 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-12-14 03:16:36,960 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 232 states. [2022-12-14 03:16:36,969 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 232 to 159. [2022-12-14 03:16:36,969 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 159 states, 136 states have (on average 1.1764705882352942) internal successors, (160), 140 states have internal predecessors, (160), 15 states have call successors, (15), 4 states have call predecessors, (15), 4 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2022-12-14 03:16:36,971 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 159 states to 159 states and 190 transitions. [2022-12-14 03:16:36,971 INFO L78 Accepts]: Start accepts. Automaton has 159 states and 190 transitions. Word has length 9 [2022-12-14 03:16:36,971 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 03:16:36,971 INFO L495 AbstractCegarLoop]: Abstraction has 159 states and 190 transitions. [2022-12-14 03:16:36,971 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 2.25) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 03:16:36,971 INFO L276 IsEmpty]: Start isEmpty. Operand 159 states and 190 transitions. [2022-12-14 03:16:36,971 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2022-12-14 03:16:36,971 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 03:16:36,971 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 03:16:36,972 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-14 03:16:36,972 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [alt_freeErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-12-14 03:16:36,972 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 03:16:36,972 INFO L85 PathProgramCache]: Analyzing trace with hash -1588621598, now seen corresponding path program 1 times [2022-12-14 03:16:36,972 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 03:16:36,972 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [881917061] [2022-12-14 03:16:36,972 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 03:16:36,973 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 03:16:37,009 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-12-14 03:16:37,010 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [57142533] [2022-12-14 03:16:37,010 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 03:16:37,010 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 03:16:37,010 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d79c099c-dc9f-4e33-b190-b75825766b1d/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 03:16:37,012 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d79c099c-dc9f-4e33-b190-b75825766b1d/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 03:16:37,013 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d79c099c-dc9f-4e33-b190-b75825766b1d/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-12-14 03:16:38,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 03:16:38,364 INFO L263 TraceCheckSpWp]: Trace formula consists of 257 conjuncts, 16 conjunts are in the unsatisfiable core [2022-12-14 03:16:38,369 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 03:16:38,421 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 03:16:38,421 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-14 03:16:38,421 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 03:16:38,422 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [881917061] [2022-12-14 03:16:38,422 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-12-14 03:16:38,422 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [57142533] [2022-12-14 03:16:38,422 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [57142533] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 03:16:38,422 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 03:16:38,422 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-14 03:16:38,423 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [570409601] [2022-12-14 03:16:38,423 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 03:16:38,423 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-14 03:16:38,423 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 03:16:38,424 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-14 03:16:38,424 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-12-14 03:16:38,424 INFO L87 Difference]: Start difference. First operand 159 states and 190 transitions. Second operand has 7 states, 7 states have (on average 2.5714285714285716) internal successors, (18), 5 states have internal predecessors, (18), 2 states have call successors, (2), 2 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 03:16:41,518 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 03:16:41,518 INFO L93 Difference]: Finished difference Result 170 states and 201 transitions. [2022-12-14 03:16:41,519 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-12-14 03:16:41,519 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 2.5714285714285716) internal successors, (18), 5 states have internal predecessors, (18), 2 states have call successors, (2), 2 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 20 [2022-12-14 03:16:41,519 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 03:16:41,521 INFO L225 Difference]: With dead ends: 170 [2022-12-14 03:16:41,521 INFO L226 Difference]: Without dead ends: 168 [2022-12-14 03:16:41,521 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-12-14 03:16:41,522 INFO L413 NwaCegarLoop]: 141 mSDtfsCounter, 125 mSDsluCounter, 596 mSDsCounter, 0 mSdLazyCounter, 275 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 137 SdHoareTripleChecker+Valid, 737 SdHoareTripleChecker+Invalid, 278 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 275 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.1s IncrementalHoareTripleChecker+Time [2022-12-14 03:16:41,522 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [137 Valid, 737 Invalid, 278 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 275 Invalid, 0 Unknown, 0 Unchecked, 3.1s Time] [2022-12-14 03:16:41,523 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 168 states. [2022-12-14 03:16:41,529 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 168 to 168. [2022-12-14 03:16:41,530 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 168 states, 142 states have (on average 1.176056338028169) internal successors, (167), 147 states have internal predecessors, (167), 16 states have call successors, (16), 6 states have call predecessors, (16), 6 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) [2022-12-14 03:16:41,530 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 168 states to 168 states and 199 transitions. [2022-12-14 03:16:41,530 INFO L78 Accepts]: Start accepts. Automaton has 168 states and 199 transitions. Word has length 20 [2022-12-14 03:16:41,531 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 03:16:41,531 INFO L495 AbstractCegarLoop]: Abstraction has 168 states and 199 transitions. [2022-12-14 03:16:41,531 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 2.5714285714285716) internal successors, (18), 5 states have internal predecessors, (18), 2 states have call successors, (2), 2 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 03:16:41,531 INFO L276 IsEmpty]: Start isEmpty. Operand 168 states and 199 transitions. [2022-12-14 03:16:41,531 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2022-12-14 03:16:41,531 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 03:16:41,532 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 03:16:41,538 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d79c099c-dc9f-4e33-b190-b75825766b1d/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-12-14 03:16:41,732 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d79c099c-dc9f-4e33-b190-b75825766b1d/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 03:16:41,733 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [alt_freeErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-12-14 03:16:41,733 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 03:16:41,733 INFO L85 PathProgramCache]: Analyzing trace with hash -486431260, now seen corresponding path program 1 times [2022-12-14 03:16:41,733 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 03:16:41,734 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1661997631] [2022-12-14 03:16:41,734 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 03:16:41,734 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 03:16:41,841 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-12-14 03:16:41,842 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [73525845] [2022-12-14 03:16:41,842 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 03:16:41,842 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 03:16:41,842 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d79c099c-dc9f-4e33-b190-b75825766b1d/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 03:16:41,843 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d79c099c-dc9f-4e33-b190-b75825766b1d/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 03:16:41,858 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d79c099c-dc9f-4e33-b190-b75825766b1d/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-12-14 03:16:42,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 03:16:42,331 INFO L263 TraceCheckSpWp]: Trace formula consists of 1647 conjuncts, 5 conjunts are in the unsatisfiable core [2022-12-14 03:16:42,333 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 03:16:42,381 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 03:16:42,381 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-14 03:16:42,381 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 03:16:42,381 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1661997631] [2022-12-14 03:16:42,381 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-12-14 03:16:42,381 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [73525845] [2022-12-14 03:16:42,381 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [73525845] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 03:16:42,382 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 03:16:42,382 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-14 03:16:42,382 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1678689679] [2022-12-14 03:16:42,382 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 03:16:42,382 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 03:16:42,382 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 03:16:42,383 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 03:16:42,383 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 03:16:42,383 INFO L87 Difference]: Start difference. First operand 168 states and 199 transitions. Second operand has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 2 states have internal predecessors, (26), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 03:16:43,188 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 03:16:43,189 INFO L93 Difference]: Finished difference Result 408 states and 486 transitions. [2022-12-14 03:16:43,189 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 03:16:43,189 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 2 states have internal predecessors, (26), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2022-12-14 03:16:43,189 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 03:16:43,191 INFO L225 Difference]: With dead ends: 408 [2022-12-14 03:16:43,191 INFO L226 Difference]: Without dead ends: 243 [2022-12-14 03:16:43,193 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 03:16:43,194 INFO L413 NwaCegarLoop]: 190 mSDtfsCounter, 68 mSDsluCounter, 128 mSDsCounter, 0 mSdLazyCounter, 96 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 79 SdHoareTripleChecker+Valid, 318 SdHoareTripleChecker+Invalid, 102 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 96 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-12-14 03:16:43,194 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [79 Valid, 318 Invalid, 102 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 96 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-12-14 03:16:43,195 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 243 states. [2022-12-14 03:16:43,203 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 243 to 211. [2022-12-14 03:16:43,203 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 211 states, 185 states have (on average 1.1675675675675676) internal successors, (216), 190 states have internal predecessors, (216), 16 states have call successors, (16), 6 states have call predecessors, (16), 6 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) [2022-12-14 03:16:43,204 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 211 states to 211 states and 248 transitions. [2022-12-14 03:16:43,204 INFO L78 Accepts]: Start accepts. Automaton has 211 states and 248 transitions. Word has length 28 [2022-12-14 03:16:43,204 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 03:16:43,204 INFO L495 AbstractCegarLoop]: Abstraction has 211 states and 248 transitions. [2022-12-14 03:16:43,204 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 2 states have internal predecessors, (26), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 03:16:43,204 INFO L276 IsEmpty]: Start isEmpty. Operand 211 states and 248 transitions. [2022-12-14 03:16:43,205 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-12-14 03:16:43,205 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 03:16:43,205 INFO L195 NwaCegarLoop]: 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] [2022-12-14 03:16:43,212 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d79c099c-dc9f-4e33-b190-b75825766b1d/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2022-12-14 03:16:43,405 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d79c099c-dc9f-4e33-b190-b75825766b1d/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 03:16:43,407 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [alt_freeErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-12-14 03:16:43,407 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 03:16:43,408 INFO L85 PathProgramCache]: Analyzing trace with hash 238588495, now seen corresponding path program 1 times [2022-12-14 03:16:43,408 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 03:16:43,408 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [284239090] [2022-12-14 03:16:43,408 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 03:16:43,408 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 03:16:43,447 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-12-14 03:16:43,447 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1872016159] [2022-12-14 03:16:43,447 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 03:16:43,447 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 03:16:43,447 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d79c099c-dc9f-4e33-b190-b75825766b1d/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 03:16:43,448 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d79c099c-dc9f-4e33-b190-b75825766b1d/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 03:16:43,449 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d79c099c-dc9f-4e33-b190-b75825766b1d/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-12-14 03:16:43,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 03:16:43,734 INFO L263 TraceCheckSpWp]: Trace formula consists of 496 conjuncts, 8 conjunts are in the unsatisfiable core [2022-12-14 03:16:43,736 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 03:16:43,793 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 03:16:43,793 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 03:16:43,874 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 03:16:43,874 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 03:16:43,874 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [284239090] [2022-12-14 03:16:43,875 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-12-14 03:16:43,875 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1872016159] [2022-12-14 03:16:43,875 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1872016159] provided 1 perfect and 1 imperfect interpolant sequences [2022-12-14 03:16:43,875 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-12-14 03:16:43,875 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [6] total 9 [2022-12-14 03:16:43,875 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1923915583] [2022-12-14 03:16:43,875 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 03:16:43,875 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-14 03:16:43,875 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 03:16:43,876 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-14 03:16:43,876 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2022-12-14 03:16:43,876 INFO L87 Difference]: Start difference. First operand 211 states and 248 transitions. Second operand has 7 states, 7 states have (on average 3.7142857142857144) internal successors, (26), 6 states have internal predecessors, (26), 3 states have call successors, (4), 4 states have call predecessors, (4), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2022-12-14 03:16:44,878 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 03:16:44,878 INFO L93 Difference]: Finished difference Result 801 states and 954 transitions. [2022-12-14 03:16:44,878 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-14 03:16:44,879 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 3.7142857142857144) internal successors, (26), 6 states have internal predecessors, (26), 3 states have call successors, (4), 4 states have call predecessors, (4), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) Word has length 32 [2022-12-14 03:16:44,879 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 03:16:44,882 INFO L225 Difference]: With dead ends: 801 [2022-12-14 03:16:44,882 INFO L226 Difference]: Without dead ends: 606 [2022-12-14 03:16:44,883 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 51 SyntacticMatches, 4 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2022-12-14 03:16:44,884 INFO L413 NwaCegarLoop]: 201 mSDtfsCounter, 992 mSDsluCounter, 372 mSDsCounter, 0 mSdLazyCounter, 174 mSolverCounterSat, 109 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 992 SdHoareTripleChecker+Valid, 573 SdHoareTripleChecker+Invalid, 283 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 109 IncrementalHoareTripleChecker+Valid, 174 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-12-14 03:16:44,884 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [992 Valid, 573 Invalid, 283 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [109 Valid, 174 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-12-14 03:16:44,885 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 606 states. [2022-12-14 03:16:44,905 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 606 to 356. [2022-12-14 03:16:44,906 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 356 states, 320 states have (on average 1.175) internal successors, (376), 326 states have internal predecessors, (376), 22 states have call successors, (22), 10 states have call predecessors, (22), 10 states have return successors, (23), 19 states have call predecessors, (23), 22 states have call successors, (23) [2022-12-14 03:16:44,908 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 356 states to 356 states and 421 transitions. [2022-12-14 03:16:44,908 INFO L78 Accepts]: Start accepts. Automaton has 356 states and 421 transitions. Word has length 32 [2022-12-14 03:16:44,908 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 03:16:44,908 INFO L495 AbstractCegarLoop]: Abstraction has 356 states and 421 transitions. [2022-12-14 03:16:44,908 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 3.7142857142857144) internal successors, (26), 6 states have internal predecessors, (26), 3 states have call successors, (4), 4 states have call predecessors, (4), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2022-12-14 03:16:44,909 INFO L276 IsEmpty]: Start isEmpty. Operand 356 states and 421 transitions. [2022-12-14 03:16:44,910 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2022-12-14 03:16:44,910 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 03:16:44,910 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 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] [2022-12-14 03:16:44,916 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d79c099c-dc9f-4e33-b190-b75825766b1d/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2022-12-14 03:16:45,111 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d79c099c-dc9f-4e33-b190-b75825766b1d/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 03:16:45,112 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [alt_freeErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-12-14 03:16:45,113 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 03:16:45,113 INFO L85 PathProgramCache]: Analyzing trace with hash -2039368234, now seen corresponding path program 1 times [2022-12-14 03:16:45,113 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 03:16:45,114 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1948583511] [2022-12-14 03:16:45,114 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 03:16:45,114 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 03:16:45,189 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-12-14 03:16:45,189 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1453834588] [2022-12-14 03:16:45,189 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 03:16:45,189 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 03:16:45,189 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d79c099c-dc9f-4e33-b190-b75825766b1d/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 03:16:45,190 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d79c099c-dc9f-4e33-b190-b75825766b1d/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 03:16:45,191 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d79c099c-dc9f-4e33-b190-b75825766b1d/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-12-14 03:16:45,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 03:16:45,492 INFO L263 TraceCheckSpWp]: Trace formula consists of 819 conjuncts, 5 conjunts are in the unsatisfiable core [2022-12-14 03:16:45,495 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 03:16:45,520 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-12-14 03:16:45,530 INFO L350 Elim1Store]: Elim1 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 [2022-12-14 03:16:45,549 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-12-14 03:16:45,550 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-14 03:16:45,550 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 03:16:45,550 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1948583511] [2022-12-14 03:16:45,550 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-12-14 03:16:45,550 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1453834588] [2022-12-14 03:16:45,550 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1453834588] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 03:16:45,550 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 03:16:45,550 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-14 03:16:45,551 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1184466589] [2022-12-14 03:16:45,551 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 03:16:45,551 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-14 03:16:45,551 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 03:16:45,552 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-14 03:16:45,552 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-14 03:16:45,552 INFO L87 Difference]: Start difference. First operand 356 states and 421 transitions. Second operand has 4 states, 4 states have (on average 10.75) internal successors, (43), 4 states have internal predecessors, (43), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2022-12-14 03:16:46,911 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 03:16:46,911 INFO L93 Difference]: Finished difference Result 513 states and 616 transitions. [2022-12-14 03:16:46,913 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-14 03:16:46,913 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 10.75) internal successors, (43), 4 states have internal predecessors, (43), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) Word has length 57 [2022-12-14 03:16:46,913 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 03:16:46,915 INFO L225 Difference]: With dead ends: 513 [2022-12-14 03:16:46,915 INFO L226 Difference]: Without dead ends: 446 [2022-12-14 03:16:46,915 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 54 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-12-14 03:16:46,916 INFO L413 NwaCegarLoop]: 156 mSDtfsCounter, 49 mSDsluCounter, 277 mSDsCounter, 0 mSdLazyCounter, 140 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 51 SdHoareTripleChecker+Valid, 433 SdHoareTripleChecker+Invalid, 141 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 140 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2022-12-14 03:16:46,916 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [51 Valid, 433 Invalid, 141 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 140 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2022-12-14 03:16:46,916 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 446 states. [2022-12-14 03:16:46,928 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 446 to 360. [2022-12-14 03:16:46,929 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 360 states, 324 states have (on average 1.1728395061728396) internal successors, (380), 330 states have internal predecessors, (380), 22 states have call successors, (22), 10 states have call predecessors, (22), 10 states have return successors, (23), 19 states have call predecessors, (23), 22 states have call successors, (23) [2022-12-14 03:16:46,930 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 360 states to 360 states and 425 transitions. [2022-12-14 03:16:46,930 INFO L78 Accepts]: Start accepts. Automaton has 360 states and 425 transitions. Word has length 57 [2022-12-14 03:16:46,930 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 03:16:46,930 INFO L495 AbstractCegarLoop]: Abstraction has 360 states and 425 transitions. [2022-12-14 03:16:46,931 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.75) internal successors, (43), 4 states have internal predecessors, (43), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2022-12-14 03:16:46,931 INFO L276 IsEmpty]: Start isEmpty. Operand 360 states and 425 transitions. [2022-12-14 03:16:46,931 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2022-12-14 03:16:46,932 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 03:16:46,932 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 03:16:46,939 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d79c099c-dc9f-4e33-b190-b75825766b1d/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-12-14 03:16:47,132 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d79c099c-dc9f-4e33-b190-b75825766b1d/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2022-12-14 03:16:47,134 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting alt_freeErr0ASSERT_VIOLATIONERROR_FUNCTION === [alt_freeErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-12-14 03:16:47,135 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 03:16:47,135 INFO L85 PathProgramCache]: Analyzing trace with hash -1164424515, now seen corresponding path program 1 times [2022-12-14 03:16:47,135 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 03:16:47,136 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1303981586] [2022-12-14 03:16:47,136 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 03:16:47,136 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 03:16:47,203 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-12-14 03:16:47,203 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [959574476] [2022-12-14 03:16:47,203 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 03:16:47,204 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 03:16:47,204 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d79c099c-dc9f-4e33-b190-b75825766b1d/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 03:16:47,204 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d79c099c-dc9f-4e33-b190-b75825766b1d/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 03:16:47,205 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d79c099c-dc9f-4e33-b190-b75825766b1d/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-12-14 03:16:47,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 03:16:47,568 INFO L263 TraceCheckSpWp]: Trace formula consists of 986 conjuncts, 9 conjunts are in the unsatisfiable core [2022-12-14 03:16:47,572 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 03:16:47,602 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2022-12-14 03:16:47,602 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-14 03:16:47,603 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 03:16:47,603 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1303981586] [2022-12-14 03:16:47,603 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-12-14 03:16:47,603 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [959574476] [2022-12-14 03:16:47,603 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [959574476] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 03:16:47,603 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 03:16:47,603 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-14 03:16:47,603 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1926573711] [2022-12-14 03:16:47,603 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 03:16:47,604 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-14 03:16:47,604 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 03:16:47,604 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-14 03:16:47,605 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-12-14 03:16:47,605 INFO L87 Difference]: Start difference. First operand 360 states and 425 transitions. Second operand has 6 states, 6 states have (on average 7.333333333333333) internal successors, (44), 4 states have internal predecessors, (44), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (6), 1 states have call predecessors, (6), 2 states have call successors, (6) [2022-12-14 03:16:49,332 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 03:16:49,332 INFO L93 Difference]: Finished difference Result 688 states and 814 transitions. [2022-12-14 03:16:49,333 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-12-14 03:16:49,333 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.333333333333333) internal successors, (44), 4 states have internal predecessors, (44), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (6), 1 states have call predecessors, (6), 2 states have call successors, (6) Word has length 64 [2022-12-14 03:16:49,333 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 03:16:49,334 INFO L225 Difference]: With dead ends: 688 [2022-12-14 03:16:49,335 INFO L226 Difference]: Without dead ends: 360 [2022-12-14 03:16:49,335 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 59 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2022-12-14 03:16:49,336 INFO L413 NwaCegarLoop]: 150 mSDtfsCounter, 15 mSDsluCounter, 392 mSDsCounter, 0 mSdLazyCounter, 189 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 542 SdHoareTripleChecker+Invalid, 204 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 189 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2022-12-14 03:16:49,336 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [16 Valid, 542 Invalid, 204 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 189 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2022-12-14 03:16:49,337 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 360 states. [2022-12-14 03:16:49,356 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 360 to 360. [2022-12-14 03:16:49,357 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 360 states, 324 states have (on average 1.1728395061728396) internal successors, (380), 330 states have internal predecessors, (380), 22 states have call successors, (22), 10 states have call predecessors, (22), 10 states have return successors, (22), 19 states have call predecessors, (22), 22 states have call successors, (22) [2022-12-14 03:16:49,359 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 360 states to 360 states and 424 transitions. [2022-12-14 03:16:49,359 INFO L78 Accepts]: Start accepts. Automaton has 360 states and 424 transitions. Word has length 64 [2022-12-14 03:16:49,359 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 03:16:49,359 INFO L495 AbstractCegarLoop]: Abstraction has 360 states and 424 transitions. [2022-12-14 03:16:49,359 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 7.333333333333333) internal successors, (44), 4 states have internal predecessors, (44), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (6), 1 states have call predecessors, (6), 2 states have call successors, (6) [2022-12-14 03:16:49,359 INFO L276 IsEmpty]: Start isEmpty. Operand 360 states and 424 transitions. [2022-12-14 03:16:49,361 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2022-12-14 03:16:49,361 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 03:16:49,361 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 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] [2022-12-14 03:16:49,368 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d79c099c-dc9f-4e33-b190-b75825766b1d/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2022-12-14 03:16:49,562 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d79c099c-dc9f-4e33-b190-b75825766b1d/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 03:16:49,563 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting alt_freeErr0ASSERT_VIOLATIONERROR_FUNCTION === [alt_freeErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-12-14 03:16:49,564 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 03:16:49,564 INFO L85 PathProgramCache]: Analyzing trace with hash 1757657895, now seen corresponding path program 1 times [2022-12-14 03:16:49,565 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 03:16:49,565 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1746699335] [2022-12-14 03:16:49,565 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 03:16:49,566 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 03:16:49,644 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-12-14 03:16:49,644 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1058328155] [2022-12-14 03:16:49,644 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 03:16:49,645 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 03:16:49,645 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d79c099c-dc9f-4e33-b190-b75825766b1d/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 03:16:49,645 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d79c099c-dc9f-4e33-b190-b75825766b1d/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 03:16:49,646 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d79c099c-dc9f-4e33-b190-b75825766b1d/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-12-14 03:16:52,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 03:16:52,658 INFO L263 TraceCheckSpWp]: Trace formula consists of 996 conjuncts, 20 conjunts are in the unsatisfiable core [2022-12-14 03:16:52,660 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 03:16:52,698 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2022-12-14 03:16:52,698 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-14 03:16:52,698 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 03:16:52,698 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1746699335] [2022-12-14 03:16:52,698 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-12-14 03:16:52,698 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1058328155] [2022-12-14 03:16:52,698 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1058328155] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 03:16:52,698 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 03:16:52,698 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-12-14 03:16:52,699 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1839459999] [2022-12-14 03:16:52,699 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 03:16:52,699 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-12-14 03:16:52,699 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 03:16:52,699 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-12-14 03:16:52,699 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-12-14 03:16:52,699 INFO L87 Difference]: Start difference. First operand 360 states and 424 transitions. Second operand has 8 states, 7 states have (on average 7.0) internal successors, (49), 8 states have internal predecessors, (49), 3 states have call successors, (8), 2 states have call predecessors, (8), 4 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2022-12-14 03:16:56,874 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 03:16:56,874 INFO L93 Difference]: Finished difference Result 692 states and 821 transitions. [2022-12-14 03:16:56,877 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-12-14 03:16:56,878 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 7.0) internal successors, (49), 8 states have internal predecessors, (49), 3 states have call successors, (8), 2 states have call predecessors, (8), 4 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) Word has length 69 [2022-12-14 03:16:56,878 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 03:16:56,879 INFO L225 Difference]: With dead ends: 692 [2022-12-14 03:16:56,879 INFO L226 Difference]: Without dead ends: 363 [2022-12-14 03:16:56,880 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 71 GetRequests, 62 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2022-12-14 03:16:56,880 INFO L413 NwaCegarLoop]: 149 mSDtfsCounter, 14 mSDsluCounter, 862 mSDsCounter, 0 mSdLazyCounter, 288 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 1011 SdHoareTripleChecker+Invalid, 292 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 288 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.1s IncrementalHoareTripleChecker+Time [2022-12-14 03:16:56,881 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 1011 Invalid, 292 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 288 Invalid, 0 Unknown, 0 Unchecked, 4.1s Time] [2022-12-14 03:16:56,881 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 363 states. [2022-12-14 03:16:56,895 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 363 to 363. [2022-12-14 03:16:56,896 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 363 states, 326 states have (on average 1.1748466257668713) internal successors, (383), 333 states have internal predecessors, (383), 22 states have call successors, (22), 10 states have call predecessors, (22), 11 states have return successors, (23), 19 states have call predecessors, (23), 22 states have call successors, (23) [2022-12-14 03:16:56,897 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 363 states to 363 states and 428 transitions. [2022-12-14 03:16:56,897 INFO L78 Accepts]: Start accepts. Automaton has 363 states and 428 transitions. Word has length 69 [2022-12-14 03:16:56,897 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 03:16:56,897 INFO L495 AbstractCegarLoop]: Abstraction has 363 states and 428 transitions. [2022-12-14 03:16:56,897 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 7.0) internal successors, (49), 8 states have internal predecessors, (49), 3 states have call successors, (8), 2 states have call predecessors, (8), 4 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2022-12-14 03:16:56,897 INFO L276 IsEmpty]: Start isEmpty. Operand 363 states and 428 transitions. [2022-12-14 03:16:56,898 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2022-12-14 03:16:56,898 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 03:16:56,898 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 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] [2022-12-14 03:16:56,912 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d79c099c-dc9f-4e33-b190-b75825766b1d/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2022-12-14 03:16:57,099 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d79c099c-dc9f-4e33-b190-b75825766b1d/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 03:16:57,100 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting alt_freeErr0ASSERT_VIOLATIONERROR_FUNCTION === [alt_freeErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-12-14 03:16:57,101 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 03:16:57,101 INFO L85 PathProgramCache]: Analyzing trace with hash -2124168179, now seen corresponding path program 1 times [2022-12-14 03:16:57,102 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 03:16:57,102 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [741401986] [2022-12-14 03:16:57,102 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 03:16:57,103 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 03:16:57,164 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-12-14 03:16:57,164 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1375235470] [2022-12-14 03:16:57,164 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 03:16:57,164 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 03:16:57,165 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d79c099c-dc9f-4e33-b190-b75825766b1d/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 03:16:57,165 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d79c099c-dc9f-4e33-b190-b75825766b1d/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 03:16:57,166 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d79c099c-dc9f-4e33-b190-b75825766b1d/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-12-14 03:16:58,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 03:16:58,495 INFO L263 TraceCheckSpWp]: Trace formula consists of 1026 conjuncts, 24 conjunts are in the unsatisfiable core [2022-12-14 03:16:58,498 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 03:16:58,557 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 18 proven. 1 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-12-14 03:16:58,557 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 03:16:58,681 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2022-12-14 03:16:58,681 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 03:16:58,681 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [741401986] [2022-12-14 03:16:58,681 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-12-14 03:16:58,681 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1375235470] [2022-12-14 03:16:58,681 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1375235470] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 03:16:58,682 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [878049255] [2022-12-14 03:16:58,704 INFO L159 IcfgInterpreter]: Started Sifa with 56 locations of interest [2022-12-14 03:16:58,704 INFO L166 IcfgInterpreter]: Building call graph [2022-12-14 03:16:58,707 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-12-14 03:16:58,710 INFO L176 IcfgInterpreter]: Starting interpretation [2022-12-14 03:16:58,711 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-12-14 03:16:58,757 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 03:16:58,759 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 03:16:58,778 INFO L321 Elim1Store]: treesize reduction 31, result has 35.4 percent of original size [2022-12-14 03:16:58,778 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 4 new quantified variables, introduced 2 case distinctions, treesize of input 54 treesize of output 93 [2022-12-14 03:16:58,787 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 8 treesize of output 7 [2022-12-14 03:16:58,804 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 03:16:58,808 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 60 treesize of output 27 [2022-12-14 03:16:58,829 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2022-12-14 03:16:58,834 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2022-12-14 03:16:58,840 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 03:16:58,856 INFO L321 Elim1Store]: treesize reduction 20, result has 48.7 percent of original size [2022-12-14 03:16:58,857 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 5 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 22 treesize of output 38 [2022-12-14 03:16:58,867 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 03:16:58,885 INFO L321 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2022-12-14 03:16:58,886 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 8 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 4 case distinctions, treesize of input 32 treesize of output 49 [2022-12-14 03:16:58,942 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 03:16:58,943 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 03:16:58,944 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 03:16:58,945 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 03:16:58,949 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 03:16:58,950 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 03:16:58,984 INFO L321 Elim1Store]: treesize reduction 56, result has 35.6 percent of original size [2022-12-14 03:16:58,985 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 4 case distinctions, treesize of input 109 treesize of output 117 [2022-12-14 03:16:58,993 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 63 treesize of output 61 [2022-12-14 03:16:59,009 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 03:16:59,010 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 03:16:59,014 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 31 [2022-12-14 03:16:59,043 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 03:16:59,044 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 03:16:59,044 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 03:16:59,054 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 86 treesize of output 88 [2022-12-14 03:16:59,096 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 03:16:59,096 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 7 [2022-12-14 03:16:59,110 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 03:16:59,115 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 03:16:59,155 INFO L321 Elim1Store]: treesize reduction 54, result has 34.1 percent of original size [2022-12-14 03:16:59,155 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 6 select indices, 6 select index equivalence classes, 12 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 6 case distinctions, treesize of input 37 treesize of output 61 [2022-12-14 03:16:59,178 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 03:16:59,179 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 7 [2022-12-14 03:16:59,194 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 03:16:59,195 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 03:16:59,196 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 12 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 40 [2022-12-14 03:17:00,053 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 03:17:00,055 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 03:17:00,055 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 03:17:00,056 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 03:17:00,058 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 8 disjoint index pairs (out of 10 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 9897398 treesize of output 8253390 [2022-12-14 03:17:00,096 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 03:17:00,104 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 03:17:00,149 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 03:17:00,157 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 03:17:00,158 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 8 disjoint index pairs (out of 10 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 457 treesize of output 367 [2022-12-14 03:17:00,234 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 03:17:00,235 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 03:17:00,236 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 03:17:00,237 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 03:17:00,237 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 03:17:00,238 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 03:17:00,239 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 03:17:00,240 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 03:17:00,240 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 03:17:00,241 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 03:17:00,242 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 03:17:00,242 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 03:17:00,243 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 03:17:00,244 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 03:17:00,244 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 03:17:00,252 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 6 select indices, 6 select index equivalence classes, 28 disjoint index pairs (out of 15 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 8253076 treesize of output 5376288 [2022-12-14 03:17:00,301 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-12-14 03:17:00,335 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 19 [2022-12-14 03:17:00,349 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 19 [2022-12-14 03:17:00,500 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 31 [2022-12-14 03:17:00,520 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 03:17:00,521 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 03:17:00,522 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 03:17:00,522 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 03:17:00,525 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 8 disjoint index pairs (out of 10 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 93836999 treesize of output 72466161 [2022-12-14 03:17:00,561 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 03:17:00,563 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 03:17:00,564 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 03:17:00,564 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 03:17:00,569 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 8 disjoint index pairs (out of 10 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 92193097 treesize of output 72466173 [2022-12-14 03:17:00,793 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 03:17:00,794 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 03:17:00,795 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 03:17:00,796 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 03:17:00,797 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 03:17:00,798 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 03:17:00,799 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 03:17:00,800 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 03:17:00,800 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 03:17:00,801 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 03:17:00,802 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 03:17:00,803 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 03:17:00,804 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 03:17:00,805 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 03:17:00,806 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 03:17:00,807 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 03:17:00,808 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 03:17:00,808 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 03:17:00,809 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 03:17:00,810 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 03:17:00,811 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 03:17:00,812 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 03:17:00,813 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 03:17:00,824 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 03:17:00,826 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 7 select indices, 7 select index equivalence classes, 36 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 8253091 treesize of output 5376294 [2022-12-14 03:17:00,877 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 31 [2022-12-14 03:17:01,268 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12 [2022-12-14 03:17:01,271 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 1 [2022-12-14 03:17:01,274 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 1 [2022-12-14 03:17:01,295 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 9 [2022-12-14 03:17:01,302 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2022-12-14 03:17:01,368 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 10 [2022-12-14 03:17:01,378 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 10 [2022-12-14 03:17:01,392 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 03:17:01,393 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 03:17:01,394 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 03:17:01,395 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 03:17:01,398 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 8 disjoint index pairs (out of 10 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 93837028 treesize of output 72466172 [2022-12-14 03:17:01,513 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 42 [2022-12-14 03:17:01,544 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 03:17:01,545 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 03:17:01,546 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 03:17:01,547 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 03:17:01,548 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 03:17:01,548 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 03:17:01,549 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 03:17:01,550 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 03:17:01,551 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 03:17:01,552 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 03:17:01,552 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 03:17:01,553 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 03:17:01,554 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 03:17:01,555 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 03:17:01,555 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 03:17:01,557 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 21 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 8253064 treesize of output 5376218 [2022-12-14 03:17:01,654 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 03:17:01,655 INFO L190 IndexEqualityManager]: detected not equals via solver