./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/aws-c-common/aws_byte_buf_eq_c_str_harness.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 0f8a17c6 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/aws-c-common/aws_byte_buf_eq_c_str_harness.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --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 Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 9e4ccc391c063e90fb229c8b3638d2f1089d6ba2ff288522cf06bf650b1be9e5 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-0f8a17c [2021-11-16 20:17:54,981 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-16 20:17:54,982 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-16 20:17:55,043 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-16 20:17:55,044 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-16 20:17:55,046 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-16 20:17:55,047 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-16 20:17:55,049 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-16 20:17:55,051 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-16 20:17:55,054 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-16 20:17:55,054 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-16 20:17:55,056 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-16 20:17:55,056 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-16 20:17:55,058 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-16 20:17:55,059 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-16 20:17:55,063 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-16 20:17:55,064 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-16 20:17:55,065 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-16 20:17:55,066 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-16 20:17:55,070 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-16 20:17:55,072 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-16 20:17:55,072 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-16 20:17:55,073 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-16 20:17:55,074 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-16 20:17:55,079 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-16 20:17:55,079 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-16 20:17:55,079 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-16 20:17:55,080 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-16 20:17:55,081 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-16 20:17:55,081 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-16 20:17:55,082 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-16 20:17:55,082 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-16 20:17:55,083 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-16 20:17:55,085 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-16 20:17:55,086 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-16 20:17:55,086 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-16 20:17:55,086 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-16 20:17:55,086 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-16 20:17:55,087 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-16 20:17:55,087 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-16 20:17:55,088 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-16 20:17:55,088 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-11-16 20:17:55,112 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-16 20:17:55,112 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-16 20:17:55,113 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-16 20:17:55,113 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-16 20:17:55,114 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-16 20:17:55,114 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-16 20:17:55,114 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-16 20:17:55,114 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-16 20:17:55,114 INFO L138 SettingsManager]: * Use SBE=true [2021-11-16 20:17:55,115 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-16 20:17:55,115 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-16 20:17:55,115 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-16 20:17:55,115 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-16 20:17:55,116 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-16 20:17:55,116 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-16 20:17:55,116 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-16 20:17:55,116 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-16 20:17:55,116 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-16 20:17:55,116 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-16 20:17:55,116 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-16 20:17:55,117 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-16 20:17:55,117 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-16 20:17:55,117 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-16 20:17:55,117 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-16 20:17:55,117 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-16 20:17:55,117 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-16 20:17:55,117 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-16 20:17:55,118 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-16 20:17:55,118 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-16 20:17:55,118 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-16 20:17:55,119 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-16 20:17:55,119 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:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9e4ccc391c063e90fb229c8b3638d2f1089d6ba2ff288522cf06bf650b1be9e5 [2021-11-16 20:17:55,291 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-16 20:17:55,308 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-16 20:17:55,310 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-16 20:17:55,310 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-16 20:17:55,311 INFO L275 PluginConnector]: CDTParser initialized [2021-11-16 20:17:55,312 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/aws-c-common/aws_byte_buf_eq_c_str_harness.i [2021-11-16 20:17:55,353 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f0b3e4782/f6000643b2bf4d6fa8712edba37eb8b0/FLAG1c53ee009 [2021-11-16 20:17:55,834 INFO L306 CDTParser]: Found 1 translation units. [2021-11-16 20:17:55,834 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_byte_buf_eq_c_str_harness.i [2021-11-16 20:17:55,859 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f0b3e4782/f6000643b2bf4d6fa8712edba37eb8b0/FLAG1c53ee009 [2021-11-16 20:17:56,083 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f0b3e4782/f6000643b2bf4d6fa8712edba37eb8b0 [2021-11-16 20:17:56,085 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-16 20:17:56,085 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-16 20:17:56,086 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-16 20:17:56,086 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-16 20:17:56,088 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-16 20:17:56,089 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 08:17:56" (1/1) ... [2021-11-16 20:17:56,090 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@78af7fbe and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:17:56, skipping insertion in model container [2021-11-16 20:17:56,090 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 08:17:56" (1/1) ... [2021-11-16 20:17:56,094 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-16 20:17:56,165 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-16 20:17:56,317 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_byte_buf_eq_c_str_harness.i[4495,4508] [2021-11-16 20:17:56,322 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_byte_buf_eq_c_str_harness.i[4555,4568] [2021-11-16 20:17:56,337 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-16 20:17:56,342 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-16 20:17:56,742 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-16 20:17:56,743 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-16 20:17:56,743 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-16 20:17:56,744 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-16 20:17:56,744 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-16 20:17:56,767 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-16 20:17:56,767 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-16 20:17:56,769 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-16 20:17:56,769 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-16 20:17:56,938 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-16 20:17:56,939 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-16 20:17:56,940 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-16 20:17:56,940 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-16 20:17:56,941 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-16 20:17:56,942 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-16 20:17:56,942 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-16 20:17:56,943 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-16 20:17:56,943 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-16 20:17:56,943 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-16 20:17:57,024 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-16 20:17:57,100 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-16 20:17:57,101 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-16 20:17:57,134 INFO L207 PostProcessor]: Analyzing one entry point: main [2021-11-16 20:17:57,164 INFO L203 MainTranslator]: Completed pre-run [2021-11-16 20:17:57,172 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_byte_buf_eq_c_str_harness.i[4495,4508] [2021-11-16 20:17:57,172 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_byte_buf_eq_c_str_harness.i[4555,4568] [2021-11-16 20:17:57,173 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-16 20:17:57,174 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-16 20:17:57,192 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-16 20:17:57,193 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-16 20:17:57,193 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-16 20:17:57,193 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-16 20:17:57,194 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-16 20:17:57,197 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-16 20:17:57,198 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-16 20:17:57,198 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-16 20:17:57,198 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-16 20:17:57,215 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-16 20:17:57,216 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-16 20:17:57,216 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-16 20:17:57,217 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-16 20:17:57,217 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-16 20:17:57,218 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-16 20:17:57,218 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-16 20:17:57,218 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-16 20:17:57,219 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-16 20:17:57,219 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-16 20:17:57,230 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-16 20:17:57,258 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-16 20:17:57,259 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-16 20:17:57,306 INFO L207 PostProcessor]: Analyzing one entry point: main [2021-11-16 20:17:57,468 INFO L208 MainTranslator]: Completed translation [2021-11-16 20:17:57,469 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:17:57 WrapperNode [2021-11-16 20:17:57,469 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-16 20:17:57,470 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-16 20:17:57,470 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-16 20:17:57,470 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-16 20:17:57,474 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:17:57" (1/1) ... [2021-11-16 20:17:57,552 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:17:57" (1/1) ... [2021-11-16 20:17:57,625 INFO L137 Inliner]: procedures = 693, calls = 2641, calls flagged for inlining = 64, calls inlined = 10, statements flattened = 900 [2021-11-16 20:17:57,626 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-16 20:17:57,627 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-16 20:17:57,627 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-16 20:17:57,627 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-16 20:17:57,633 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:17:57" (1/1) ... [2021-11-16 20:17:57,633 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:17:57" (1/1) ... [2021-11-16 20:17:57,641 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:17:57" (1/1) ... [2021-11-16 20:17:57,642 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:17:57" (1/1) ... [2021-11-16 20:17:57,681 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:17:57" (1/1) ... [2021-11-16 20:17:57,684 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:17:57" (1/1) ... [2021-11-16 20:17:57,701 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:17:57" (1/1) ... [2021-11-16 20:17:57,710 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-16 20:17:57,710 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-16 20:17:57,711 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-16 20:17:57,711 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-16 20:17:57,713 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:17:57" (1/1) ... [2021-11-16 20:17:57,725 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-16 20:17:57,731 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-16 20:17:57,740 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-16 20:17:57,747 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-16 20:17:57,773 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_eq_c_str [2021-11-16 20:17:57,773 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_eq_c_str [2021-11-16 20:17:57,774 INFO L130 BoogieDeclarations]: Found specification of procedure aws_byte_buf_is_valid [2021-11-16 20:17:57,774 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_byte_buf_is_valid [2021-11-16 20:17:57,774 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-16 20:17:57,774 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_bool [2021-11-16 20:17:57,775 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_bool [2021-11-16 20:17:57,775 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-16 20:17:57,775 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2021-11-16 20:17:57,776 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2021-11-16 20:17:57,776 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-16 20:17:57,776 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-16 20:17:57,776 INFO L130 BoogieDeclarations]: Found specification of procedure save_byte_from_array [2021-11-16 20:17:57,777 INFO L138 BoogieDeclarations]: Found implementation of procedure save_byte_from_array [2021-11-16 20:17:57,777 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-16 20:17:57,777 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-16 20:17:57,777 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-16 20:17:57,777 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2021-11-16 20:17:57,777 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2021-11-16 20:17:57,777 INFO L130 BoogieDeclarations]: Found specification of procedure assert_byte_from_buffer_matches [2021-11-16 20:17:57,778 INFO L138 BoogieDeclarations]: Found implementation of procedure assert_byte_from_buffer_matches [2021-11-16 20:17:57,778 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2021-11-16 20:17:57,778 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2021-11-16 20:17:57,778 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-16 20:17:57,779 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-16 20:17:57,779 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-16 20:17:57,779 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_allocator [2021-11-16 20:17:57,779 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_allocator [2021-11-16 20:17:57,779 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_uint64_t [2021-11-16 20:17:57,779 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_uint64_t [2021-11-16 20:17:57,780 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-16 20:17:57,780 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-16 20:17:57,981 INFO L236 CfgBuilder]: Building ICFG [2021-11-16 20:17:57,982 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-16 20:17:58,915 INFO L277 CfgBuilder]: Performing block encoding [2021-11-16 20:17:58,921 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-16 20:17:58,921 INFO L301 CfgBuilder]: Removed 1 assume(true) statements. [2021-11-16 20:17:58,922 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 08:17:58 BoogieIcfgContainer [2021-11-16 20:17:58,923 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-16 20:17:58,924 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-16 20:17:58,924 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-16 20:17:58,926 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-16 20:17:58,926 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.11 08:17:56" (1/3) ... [2021-11-16 20:17:58,927 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7442b51 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 08:17:58, skipping insertion in model container [2021-11-16 20:17:58,927 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:17:57" (2/3) ... [2021-11-16 20:17:58,927 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7442b51 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 08:17:58, skipping insertion in model container [2021-11-16 20:17:58,927 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 08:17:58" (3/3) ... [2021-11-16 20:17:58,928 INFO L111 eAbstractionObserver]: Analyzing ICFG aws_byte_buf_eq_c_str_harness.i [2021-11-16 20:17:58,933 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-16 20:17:58,933 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-16 20:17:58,968 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-16 20:17:58,972 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-11-16 20:17:58,972 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-16 20:17:58,988 INFO L276 IsEmpty]: Start isEmpty. Operand has 142 states, 94 states have (on average 1.2553191489361701) internal successors, (118), 96 states have internal predecessors, (118), 36 states have call successors, (36), 10 states have call predecessors, (36), 10 states have return successors, (36), 36 states have call predecessors, (36), 36 states have call successors, (36) [2021-11-16 20:17:58,995 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2021-11-16 20:17:58,995 INFO L506 BasicCegarLoop]: Found error trace [2021-11-16 20:17:58,995 INFO L514 BasicCegarLoop]: trace histogram [10, 10, 10, 3, 3, 3, 3, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-16 20:17:58,996 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-16 20:17:58,999 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-16 20:17:58,999 INFO L85 PathProgramCache]: Analyzing trace with hash -1244186500, now seen corresponding path program 1 times [2021-11-16 20:17:59,004 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-16 20:17:59,004 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1177083271] [2021-11-16 20:17:59,005 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-16 20:17:59,005 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-16 20:17:59,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-16 20:17:59,360 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-16 20:17:59,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-16 20:17:59,385 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2021-11-16 20:17:59,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-16 20:17:59,402 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-11-16 20:17:59,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-16 20:17:59,417 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-16 20:17:59,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-16 20:17:59,432 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-11-16 20:17:59,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-16 20:17:59,441 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2021-11-16 20:17:59,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-16 20:17:59,450 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2021-11-16 20:17:59,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-16 20:17:59,461 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2021-11-16 20:17:59,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-16 20:17:59,475 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-16 20:17:59,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-16 20:17:59,487 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2021-11-16 20:17:59,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-16 20:17:59,496 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2021-11-16 20:17:59,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-16 20:17:59,513 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2021-11-16 20:17:59,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-16 20:17:59,528 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2021-11-16 20:17:59,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-16 20:17:59,538 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2021-11-16 20:17:59,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-16 20:17:59,547 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2021-11-16 20:17:59,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-16 20:17:59,556 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2021-11-16 20:17:59,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-16 20:17:59,571 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2021-11-16 20:17:59,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-16 20:17:59,585 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-16 20:17:59,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-16 20:17:59,593 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-16 20:17:59,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-16 20:17:59,602 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2021-11-16 20:17:59,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-16 20:17:59,612 INFO L134 CoverageAnalysis]: Checked inductivity of 204 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 204 trivial. 0 not checked. [2021-11-16 20:17:59,613 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-16 20:17:59,613 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1177083271] [2021-11-16 20:17:59,613 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1177083271] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-16 20:17:59,614 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-16 20:17:59,614 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-16 20:17:59,615 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [93622378] [2021-11-16 20:17:59,615 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-16 20:17:59,619 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-16 20:17:59,619 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-16 20:17:59,642 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-16 20:17:59,643 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-16 20:17:59,645 INFO L87 Difference]: Start difference. First operand has 142 states, 94 states have (on average 1.2553191489361701) internal successors, (118), 96 states have internal predecessors, (118), 36 states have call successors, (36), 10 states have call predecessors, (36), 10 states have return successors, (36), 36 states have call predecessors, (36), 36 states have call successors, (36) Second operand has 4 states, 4 states have (on average 11.25) internal successors, (45), 2 states have internal predecessors, (45), 2 states have call successors, (20), 4 states have call predecessors, (20), 2 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2021-11-16 20:17:59,991 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-16 20:17:59,991 INFO L93 Difference]: Finished difference Result 281 states and 404 transitions. [2021-11-16 20:17:59,992 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-16 20:17:59,993 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 11.25) internal successors, (45), 2 states have internal predecessors, (45), 2 states have call successors, (20), 4 states have call predecessors, (20), 2 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) Word has length 127 [2021-11-16 20:17:59,994 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-16 20:18:00,004 INFO L225 Difference]: With dead ends: 281 [2021-11-16 20:18:00,004 INFO L226 Difference]: Without dead ends: 139 [2021-11-16 20:18:00,010 INFO L932 BasicCegarLoop]: 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 [2021-11-16 20:18:00,015 INFO L933 BasicCegarLoop]: 170 mSDtfsCounter, 119 mSDsluCounter, 87 mSDsCounter, 0 mSdLazyCounter, 107 mSolverCounterSat, 82 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 120 SdHoareTripleChecker+Valid, 257 SdHoareTripleChecker+Invalid, 189 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 82 IncrementalHoareTripleChecker+Valid, 107 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2021-11-16 20:18:00,015 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [120 Valid, 257 Invalid, 189 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [82 Valid, 107 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2021-11-16 20:18:00,027 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 139 states. [2021-11-16 20:18:00,047 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 139 to 137. [2021-11-16 20:18:00,048 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 137 states, 90 states have (on average 1.2222222222222223) internal successors, (110), 91 states have internal predecessors, (110), 36 states have call successors, (36), 10 states have call predecessors, (36), 10 states have return successors, (35), 35 states have call predecessors, (35), 35 states have call successors, (35) [2021-11-16 20:18:00,050 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 137 states to 137 states and 181 transitions. [2021-11-16 20:18:00,050 INFO L78 Accepts]: Start accepts. Automaton has 137 states and 181 transitions. Word has length 127 [2021-11-16 20:18:00,051 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-16 20:18:00,051 INFO L470 AbstractCegarLoop]: Abstraction has 137 states and 181 transitions. [2021-11-16 20:18:00,051 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.25) internal successors, (45), 2 states have internal predecessors, (45), 2 states have call successors, (20), 4 states have call predecessors, (20), 2 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2021-11-16 20:18:00,051 INFO L276 IsEmpty]: Start isEmpty. Operand 137 states and 181 transitions. [2021-11-16 20:18:00,053 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2021-11-16 20:18:00,053 INFO L506 BasicCegarLoop]: Found error trace [2021-11-16 20:18:00,053 INFO L514 BasicCegarLoop]: trace histogram [10, 10, 10, 3, 3, 3, 3, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-16 20:18:00,054 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-16 20:18:00,054 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-16 20:18:00,054 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-16 20:18:00,054 INFO L85 PathProgramCache]: Analyzing trace with hash 1259852002, now seen corresponding path program 1 times [2021-11-16 20:18:00,054 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-16 20:18:00,055 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1737802945] [2021-11-16 20:18:00,055 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-16 20:18:00,055 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-16 20:18:00,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-16 20:18:00,216 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-16 20:18:00,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-16 20:18:00,225 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2021-11-16 20:18:00,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-16 20:18:00,238 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-11-16 20:18:00,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-16 20:18:00,260 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-16 20:18:00,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-16 20:18:00,266 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-11-16 20:18:00,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-16 20:18:00,275 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2021-11-16 20:18:00,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-16 20:18:00,282 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2021-11-16 20:18:00,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-16 20:18:00,289 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2021-11-16 20:18:00,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-16 20:18:00,299 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-16 20:18:00,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-16 20:18:00,306 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2021-11-16 20:18:00,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-16 20:18:00,334 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2021-11-16 20:18:00,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-16 20:18:00,348 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2021-11-16 20:18:00,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-16 20:18:00,355 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2021-11-16 20:18:00,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-16 20:18:00,365 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2021-11-16 20:18:00,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-16 20:18:00,378 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2021-11-16 20:18:00,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-16 20:18:00,396 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2021-11-16 20:18:00,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-16 20:18:00,403 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2021-11-16 20:18:00,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-16 20:18:00,414 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-16 20:18:00,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-16 20:18:00,419 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-16 20:18:00,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-16 20:18:00,425 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2021-11-16 20:18:00,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-16 20:18:00,431 INFO L134 CoverageAnalysis]: Checked inductivity of 204 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 196 trivial. 0 not checked. [2021-11-16 20:18:00,431 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-16 20:18:00,432 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1737802945] [2021-11-16 20:18:00,432 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1737802945] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-16 20:18:00,432 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2054859998] [2021-11-16 20:18:00,432 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-16 20:18:00,433 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-16 20:18:00,435 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-16 20:18:00,436 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-16 20:18:00,437 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-11-16 20:18:00,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-16 20:18:00,805 INFO L263 TraceCheckSpWp]: Trace formula consists of 2672 conjuncts, 6 conjunts are in the unsatisfiable core [2021-11-16 20:18:00,813 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-16 20:18:01,117 INFO L134 CoverageAnalysis]: Checked inductivity of 204 backedges. 110 proven. 0 refuted. 0 times theorem prover too weak. 94 trivial. 0 not checked. [2021-11-16 20:18:01,118 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-16 20:18:01,118 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2054859998] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-16 20:18:01,118 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-16 20:18:01,118 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [7] total 11 [2021-11-16 20:18:01,119 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1173152872] [2021-11-16 20:18:01,119 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-16 20:18:01,119 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-16 20:18:01,120 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-16 20:18:01,120 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-16 20:18:01,120 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2021-11-16 20:18:01,120 INFO L87 Difference]: Start difference. First operand 137 states and 181 transitions. Second operand has 6 states, 6 states have (on average 8.666666666666666) internal successors, (52), 6 states have internal predecessors, (52), 3 states have call successors, (20), 2 states have call predecessors, (20), 3 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) [2021-11-16 20:18:01,249 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-16 20:18:01,250 INFO L93 Difference]: Finished difference Result 244 states and 327 transitions. [2021-11-16 20:18:01,250 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-16 20:18:01,250 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.666666666666666) internal successors, (52), 6 states have internal predecessors, (52), 3 states have call successors, (20), 2 states have call predecessors, (20), 3 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) Word has length 127 [2021-11-16 20:18:01,250 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-16 20:18:01,252 INFO L225 Difference]: With dead ends: 244 [2021-11-16 20:18:01,252 INFO L226 Difference]: Without dead ends: 140 [2021-11-16 20:18:01,252 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 173 GetRequests, 161 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=142, Unknown=0, NotChecked=0, Total=182 [2021-11-16 20:18:01,253 INFO L933 BasicCegarLoop]: 138 mSDtfsCounter, 208 mSDsluCounter, 232 mSDsCounter, 0 mSdLazyCounter, 95 mSolverCounterSat, 59 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 208 SdHoareTripleChecker+Valid, 370 SdHoareTripleChecker+Invalid, 154 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 59 IncrementalHoareTripleChecker+Valid, 95 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-16 20:18:01,253 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [208 Valid, 370 Invalid, 154 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [59 Valid, 95 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-16 20:18:01,254 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 140 states. [2021-11-16 20:18:01,262 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 140 to 140. [2021-11-16 20:18:01,262 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 140 states, 92 states have (on average 1.2173913043478262) internal successors, (112), 94 states have internal predecessors, (112), 36 states have call successors, (36), 10 states have call predecessors, (36), 11 states have return successors, (37), 35 states have call predecessors, (37), 35 states have call successors, (37) [2021-11-16 20:18:01,263 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 140 states to 140 states and 185 transitions. [2021-11-16 20:18:01,263 INFO L78 Accepts]: Start accepts. Automaton has 140 states and 185 transitions. Word has length 127 [2021-11-16 20:18:01,263 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-16 20:18:01,263 INFO L470 AbstractCegarLoop]: Abstraction has 140 states and 185 transitions. [2021-11-16 20:18:01,264 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.666666666666666) internal successors, (52), 6 states have internal predecessors, (52), 3 states have call successors, (20), 2 states have call predecessors, (20), 3 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) [2021-11-16 20:18:01,264 INFO L276 IsEmpty]: Start isEmpty. Operand 140 states and 185 transitions. [2021-11-16 20:18:01,265 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2021-11-16 20:18:01,265 INFO L506 BasicCegarLoop]: Found error trace [2021-11-16 20:18:01,265 INFO L514 BasicCegarLoop]: trace histogram [10, 10, 10, 3, 3, 3, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-16 20:18:01,287 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2021-11-16 20:18:01,484 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-16 20:18:01,485 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-16 20:18:01,485 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-16 20:18:01,485 INFO L85 PathProgramCache]: Analyzing trace with hash -2087307667, now seen corresponding path program 1 times [2021-11-16 20:18:01,485 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-16 20:18:01,485 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [594138650] [2021-11-16 20:18:01,486 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-16 20:18:01,486 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-16 20:18:01,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-16 20:18:01,617 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-16 20:18:01,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-16 20:18:01,625 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2021-11-16 20:18:01,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-16 20:18:01,636 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-11-16 20:18:01,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-16 20:18:01,646 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-16 20:18:01,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-16 20:18:01,652 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-11-16 20:18:01,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-16 20:18:01,671 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2021-11-16 20:18:01,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-16 20:18:01,677 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2021-11-16 20:18:01,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-16 20:18:01,683 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2021-11-16 20:18:01,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-16 20:18:01,690 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-16 20:18:01,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-16 20:18:01,695 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2021-11-16 20:18:01,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-16 20:18:01,708 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2021-11-16 20:18:01,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-16 20:18:01,723 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2021-11-16 20:18:01,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-16 20:18:01,730 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2021-11-16 20:18:01,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-16 20:18:01,737 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2021-11-16 20:18:01,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-16 20:18:01,756 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2021-11-16 20:18:01,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-16 20:18:01,761 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2021-11-16 20:18:01,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-16 20:18:01,766 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2021-11-16 20:18:01,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-16 20:18:01,773 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-16 20:18:01,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-16 20:18:01,778 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-16 20:18:01,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-16 20:18:01,782 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2021-11-16 20:18:01,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-16 20:18:01,787 INFO L134 CoverageAnalysis]: Checked inductivity of 204 backedges. 4 proven. 4 refuted. 0 times theorem prover too weak. 196 trivial. 0 not checked. [2021-11-16 20:18:01,788 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-16 20:18:01,788 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [594138650] [2021-11-16 20:18:01,788 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [594138650] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-16 20:18:01,788 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2054567642] [2021-11-16 20:18:01,788 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-16 20:18:01,788 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-16 20:18:01,789 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-16 20:18:01,789 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-16 20:18:01,790 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-11-16 20:18:02,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-16 20:18:02,155 INFO L263 TraceCheckSpWp]: Trace formula consists of 2689 conjuncts, 8 conjunts are in the unsatisfiable core [2021-11-16 20:18:02,160 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-16 20:18:02,446 INFO L134 CoverageAnalysis]: Checked inductivity of 204 backedges. 110 proven. 0 refuted. 0 times theorem prover too weak. 94 trivial. 0 not checked. [2021-11-16 20:18:02,446 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-16 20:18:02,446 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2054567642] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-16 20:18:02,446 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-16 20:18:02,447 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [8] total 13 [2021-11-16 20:18:02,447 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [427354761] [2021-11-16 20:18:02,447 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-16 20:18:02,447 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-16 20:18:02,447 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-16 20:18:02,448 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-16 20:18:02,448 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=126, Unknown=0, NotChecked=0, Total=156 [2021-11-16 20:18:02,448 INFO L87 Difference]: Start difference. First operand 140 states and 185 transitions. Second operand has 7 states, 6 states have (on average 10.333333333333334) internal successors, (62), 7 states have internal predecessors, (62), 4 states have call successors, (20), 2 states have call predecessors, (20), 3 states have return successors, (19), 3 states have call predecessors, (19), 4 states have call successors, (19) [2021-11-16 20:18:02,609 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-16 20:18:02,610 INFO L93 Difference]: Finished difference Result 231 states and 306 transitions. [2021-11-16 20:18:02,610 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-16 20:18:02,610 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 10.333333333333334) internal successors, (62), 7 states have internal predecessors, (62), 4 states have call successors, (20), 2 states have call predecessors, (20), 3 states have return successors, (19), 3 states have call predecessors, (19), 4 states have call successors, (19) Word has length 133 [2021-11-16 20:18:02,611 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-16 20:18:02,612 INFO L225 Difference]: With dead ends: 231 [2021-11-16 20:18:02,612 INFO L226 Difference]: Without dead ends: 137 [2021-11-16 20:18:02,612 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 183 GetRequests, 168 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=53, Invalid=219, Unknown=0, NotChecked=0, Total=272 [2021-11-16 20:18:02,613 INFO L933 BasicCegarLoop]: 137 mSDtfsCounter, 232 mSDsluCounter, 460 mSDsCounter, 0 mSdLazyCounter, 163 mSolverCounterSat, 69 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 232 SdHoareTripleChecker+Valid, 597 SdHoareTripleChecker+Invalid, 232 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 69 IncrementalHoareTripleChecker+Valid, 163 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-16 20:18:02,613 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [232 Valid, 597 Invalid, 232 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [69 Valid, 163 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-16 20:18:02,614 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 137 states. [2021-11-16 20:18:02,620 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 137 to 137. [2021-11-16 20:18:02,620 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 137 states, 90 states have (on average 1.211111111111111) internal successors, (109), 91 states have internal predecessors, (109), 36 states have call successors, (36), 10 states have call predecessors, (36), 10 states have return successors, (35), 35 states have call predecessors, (35), 35 states have call successors, (35) [2021-11-16 20:18:02,621 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 137 states to 137 states and 180 transitions. [2021-11-16 20:18:02,621 INFO L78 Accepts]: Start accepts. Automaton has 137 states and 180 transitions. Word has length 133 [2021-11-16 20:18:02,621 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-16 20:18:02,622 INFO L470 AbstractCegarLoop]: Abstraction has 137 states and 180 transitions. [2021-11-16 20:18:02,622 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 10.333333333333334) internal successors, (62), 7 states have internal predecessors, (62), 4 states have call successors, (20), 2 states have call predecessors, (20), 3 states have return successors, (19), 3 states have call predecessors, (19), 4 states have call successors, (19) [2021-11-16 20:18:02,622 INFO L276 IsEmpty]: Start isEmpty. Operand 137 states and 180 transitions. [2021-11-16 20:18:02,623 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2021-11-16 20:18:02,623 INFO L506 BasicCegarLoop]: Found error trace [2021-11-16 20:18:02,623 INFO L514 BasicCegarLoop]: trace histogram [10, 10, 10, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-16 20:18:02,649 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2021-11-16 20:18:02,843 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable2 [2021-11-16 20:18:02,843 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-16 20:18:02,844 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-16 20:18:02,844 INFO L85 PathProgramCache]: Analyzing trace with hash 388826435, now seen corresponding path program 1 times [2021-11-16 20:18:02,844 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-16 20:18:02,844 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [695487909] [2021-11-16 20:18:02,844 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-16 20:18:02,844 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-16 20:18:02,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-16 20:18:02,975 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-16 20:18:02,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-16 20:18:02,981 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2021-11-16 20:18:02,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-16 20:18:02,992 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-11-16 20:18:02,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-16 20:18:02,998 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-16 20:18:02,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-16 20:18:03,003 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-11-16 20:18:03,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-16 20:18:03,007 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2021-11-16 20:18:03,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-16 20:18:03,011 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2021-11-16 20:18:03,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-16 20:18:03,016 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2021-11-16 20:18:03,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-16 20:18:03,022 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-16 20:18:03,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-16 20:18:03,026 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2021-11-16 20:18:03,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-16 20:18:03,036 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2021-11-16 20:18:03,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-16 20:18:03,048 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2021-11-16 20:18:03,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-16 20:18:03,054 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2021-11-16 20:18:03,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-16 20:18:03,059 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2021-11-16 20:18:03,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-16 20:18:03,065 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2021-11-16 20:18:03,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-16 20:18:03,070 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2021-11-16 20:18:03,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-16 20:18:03,093 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2021-11-16 20:18:03,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-16 20:18:03,100 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-16 20:18:03,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-16 20:18:03,105 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-16 20:18:03,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-16 20:18:03,110 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2021-11-16 20:18:03,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-16 20:18:03,143 INFO L134 CoverageAnalysis]: Checked inductivity of 222 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 214 trivial. 0 not checked. [2021-11-16 20:18:03,144 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-16 20:18:03,144 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [695487909] [2021-11-16 20:18:03,144 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [695487909] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-16 20:18:03,144 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-16 20:18:03,144 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-11-16 20:18:03,144 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [877900912] [2021-11-16 20:18:03,145 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-16 20:18:03,145 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-11-16 20:18:03,145 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-16 20:18:03,146 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-11-16 20:18:03,146 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2021-11-16 20:18:03,146 INFO L87 Difference]: Start difference. First operand 137 states and 180 transitions. Second operand has 10 states, 9 states have (on average 6.111111111111111) internal successors, (55), 6 states have internal predecessors, (55), 2 states have call successors, (20), 4 states have call predecessors, (20), 2 states have return successors, (19), 2 states have call predecessors, (19), 1 states have call successors, (19) [2021-11-16 20:18:04,013 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-16 20:18:04,014 INFO L93 Difference]: Finished difference Result 151 states and 198 transitions. [2021-11-16 20:18:04,014 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-11-16 20:18:04,014 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 6.111111111111111) internal successors, (55), 6 states have internal predecessors, (55), 2 states have call successors, (20), 4 states have call predecessors, (20), 2 states have return successors, (19), 2 states have call predecessors, (19), 1 states have call successors, (19) Word has length 145 [2021-11-16 20:18:04,015 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-16 20:18:04,016 INFO L225 Difference]: With dead ends: 151 [2021-11-16 20:18:04,016 INFO L226 Difference]: Without dead ends: 149 [2021-11-16 20:18:04,016 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=55, Invalid=185, Unknown=0, NotChecked=0, Total=240 [2021-11-16 20:18:04,017 INFO L933 BasicCegarLoop]: 159 mSDtfsCounter, 147 mSDsluCounter, 756 mSDsCounter, 0 mSdLazyCounter, 505 mSolverCounterSat, 86 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 149 SdHoareTripleChecker+Valid, 915 SdHoareTripleChecker+Invalid, 591 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 86 IncrementalHoareTripleChecker+Valid, 505 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2021-11-16 20:18:04,017 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [149 Valid, 915 Invalid, 591 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [86 Valid, 505 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2021-11-16 20:18:04,018 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 149 states. [2021-11-16 20:18:04,024 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 149 to 146. [2021-11-16 20:18:04,025 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 146 states, 96 states have (on average 1.1979166666666667) internal successors, (115), 98 states have internal predecessors, (115), 37 states have call successors, (37), 11 states have call predecessors, (37), 12 states have return successors, (40), 36 states have call predecessors, (40), 36 states have call successors, (40) [2021-11-16 20:18:04,026 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 146 states to 146 states and 192 transitions. [2021-11-16 20:18:04,026 INFO L78 Accepts]: Start accepts. Automaton has 146 states and 192 transitions. Word has length 145 [2021-11-16 20:18:04,026 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-16 20:18:04,026 INFO L470 AbstractCegarLoop]: Abstraction has 146 states and 192 transitions. [2021-11-16 20:18:04,027 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 6.111111111111111) internal successors, (55), 6 states have internal predecessors, (55), 2 states have call successors, (20), 4 states have call predecessors, (20), 2 states have return successors, (19), 2 states have call predecessors, (19), 1 states have call successors, (19) [2021-11-16 20:18:04,027 INFO L276 IsEmpty]: Start isEmpty. Operand 146 states and 192 transitions. [2021-11-16 20:18:04,028 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2021-11-16 20:18:04,028 INFO L506 BasicCegarLoop]: Found error trace [2021-11-16 20:18:04,028 INFO L514 BasicCegarLoop]: trace histogram [10, 10, 10, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-16 20:18:04,028 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-16 20:18:04,028 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-16 20:18:04,029 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-16 20:18:04,029 INFO L85 PathProgramCache]: Analyzing trace with hash -1495986421, now seen corresponding path program 1 times [2021-11-16 20:18:04,029 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-16 20:18:04,029 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1835258717] [2021-11-16 20:18:04,029 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-16 20:18:04,029 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-16 20:18:04,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-16 20:18:04,207 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-16 20:18:04,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-16 20:18:04,212 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2021-11-16 20:18:04,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-16 20:18:04,219 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-11-16 20:18:04,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-16 20:18:04,224 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-16 20:18:04,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-16 20:18:04,248 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-11-16 20:18:04,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-16 20:18:04,253 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2021-11-16 20:18:04,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-16 20:18:04,257 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2021-11-16 20:18:04,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-16 20:18:04,261 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2021-11-16 20:18:04,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-16 20:18:04,268 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-16 20:18:04,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-16 20:18:04,272 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2021-11-16 20:18:04,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-16 20:18:04,282 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2021-11-16 20:18:04,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-16 20:18:04,293 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2021-11-16 20:18:04,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-16 20:18:04,313 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2021-11-16 20:18:04,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-16 20:18:04,318 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2021-11-16 20:18:04,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-16 20:18:04,323 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2021-11-16 20:18:04,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-16 20:18:04,327 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2021-11-16 20:18:04,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-16 20:18:04,331 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2021-11-16 20:18:04,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-16 20:18:04,336 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-16 20:18:04,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-16 20:18:04,340 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-16 20:18:04,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-16 20:18:04,344 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2021-11-16 20:18:04,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-16 20:18:04,382 INFO L134 CoverageAnalysis]: Checked inductivity of 222 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 204 trivial. 0 not checked. [2021-11-16 20:18:04,382 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-16 20:18:04,382 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1835258717] [2021-11-16 20:18:04,382 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1835258717] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-16 20:18:04,382 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-16 20:18:04,382 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-11-16 20:18:04,383 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [772640557] [2021-11-16 20:18:04,383 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-16 20:18:04,383 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-16 20:18:04,383 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-16 20:18:04,383 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-16 20:18:04,384 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-11-16 20:18:04,384 INFO L87 Difference]: Start difference. First operand 146 states and 192 transitions. Second operand has 7 states, 7 states have (on average 9.142857142857142) internal successors, (64), 5 states have internal predecessors, (64), 2 states have call successors, (20), 4 states have call predecessors, (20), 2 states have return successors, (19), 2 states have call predecessors, (19), 1 states have call successors, (19) [2021-11-16 20:18:05,218 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-16 20:18:05,218 INFO L93 Difference]: Finished difference Result 286 states and 387 transitions. [2021-11-16 20:18:05,219 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-16 20:18:05,219 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 9.142857142857142) internal successors, (64), 5 states have internal predecessors, (64), 2 states have call successors, (20), 4 states have call predecessors, (20), 2 states have return successors, (19), 2 states have call predecessors, (19), 1 states have call successors, (19) Word has length 149 [2021-11-16 20:18:05,221 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-16 20:18:05,224 INFO L225 Difference]: With dead ends: 286 [2021-11-16 20:18:05,224 INFO L226 Difference]: Without dead ends: 173 [2021-11-16 20:18:05,225 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 46 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=49, Invalid=83, Unknown=0, NotChecked=0, Total=132 [2021-11-16 20:18:05,227 INFO L933 BasicCegarLoop]: 162 mSDtfsCounter, 214 mSDsluCounter, 260 mSDsCounter, 0 mSdLazyCounter, 295 mSolverCounterSat, 82 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 215 SdHoareTripleChecker+Valid, 422 SdHoareTripleChecker+Invalid, 377 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 82 IncrementalHoareTripleChecker+Valid, 295 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2021-11-16 20:18:05,227 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [215 Valid, 422 Invalid, 377 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [82 Valid, 295 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2021-11-16 20:18:05,229 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 173 states. [2021-11-16 20:18:05,244 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 173 to 151. [2021-11-16 20:18:05,244 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 151 states, 101 states have (on average 1.2079207920792079) internal successors, (122), 103 states have internal predecessors, (122), 37 states have call successors, (37), 11 states have call predecessors, (37), 12 states have return successors, (40), 36 states have call predecessors, (40), 36 states have call successors, (40) [2021-11-16 20:18:05,245 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 151 states to 151 states and 199 transitions. [2021-11-16 20:18:05,245 INFO L78 Accepts]: Start accepts. Automaton has 151 states and 199 transitions. Word has length 149 [2021-11-16 20:18:05,245 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-16 20:18:05,246 INFO L470 AbstractCegarLoop]: Abstraction has 151 states and 199 transitions. [2021-11-16 20:18:05,246 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 9.142857142857142) internal successors, (64), 5 states have internal predecessors, (64), 2 states have call successors, (20), 4 states have call predecessors, (20), 2 states have return successors, (19), 2 states have call predecessors, (19), 1 states have call successors, (19) [2021-11-16 20:18:05,246 INFO L276 IsEmpty]: Start isEmpty. Operand 151 states and 199 transitions. [2021-11-16 20:18:05,247 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2021-11-16 20:18:05,247 INFO L506 BasicCegarLoop]: Found error trace [2021-11-16 20:18:05,247 INFO L514 BasicCegarLoop]: trace histogram [10, 10, 10, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-16 20:18:05,247 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-11-16 20:18:05,247 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-16 20:18:05,247 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-16 20:18:05,247 INFO L85 PathProgramCache]: Analyzing trace with hash -1237820983, now seen corresponding path program 1 times [2021-11-16 20:18:05,247 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-16 20:18:05,247 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [60859447] [2021-11-16 20:18:05,248 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-16 20:18:05,248 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-16 20:18:05,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-16 20:18:05,563 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-16 20:18:05,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-16 20:18:05,568 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2021-11-16 20:18:05,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-16 20:18:05,578 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-11-16 20:18:05,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-16 20:18:05,584 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-16 20:18:05,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-16 20:18:05,588 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-11-16 20:18:05,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-16 20:18:05,594 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2021-11-16 20:18:05,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-16 20:18:05,598 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2021-11-16 20:18:05,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-16 20:18:05,603 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2021-11-16 20:18:05,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-16 20:18:05,616 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-16 20:18:05,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-16 20:18:05,620 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2021-11-16 20:18:05,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-16 20:18:05,687 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2021-11-16 20:18:05,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-16 20:18:05,704 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2021-11-16 20:18:05,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-16 20:18:05,709 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2021-11-16 20:18:05,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-16 20:18:05,714 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2021-11-16 20:18:05,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-16 20:18:05,719 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2021-11-16 20:18:05,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-16 20:18:05,723 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2021-11-16 20:18:05,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-16 20:18:05,727 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2021-11-16 20:18:05,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-16 20:18:05,733 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-16 20:18:05,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-16 20:18:05,737 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-16 20:18:05,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-16 20:18:05,741 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2021-11-16 20:18:05,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-16 20:18:05,748 INFO L134 CoverageAnalysis]: Checked inductivity of 222 backedges. 2 proven. 20 refuted. 0 times theorem prover too weak. 200 trivial. 0 not checked. [2021-11-16 20:18:05,748 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-16 20:18:05,748 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [60859447] [2021-11-16 20:18:05,748 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [60859447] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-16 20:18:05,748 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1871105959] [2021-11-16 20:18:05,748 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-16 20:18:05,748 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-16 20:18:05,748 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-16 20:18:05,749 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-16 20:18:05,750 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-11-16 20:18:06,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-16 20:18:06,091 INFO L263 TraceCheckSpWp]: Trace formula consists of 2730 conjuncts, 33 conjunts are in the unsatisfiable core [2021-11-16 20:18:06,097 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-16 20:18:06,244 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12 [2021-11-16 20:18:06,609 INFO L134 CoverageAnalysis]: Checked inductivity of 222 backedges. 124 proven. 0 refuted. 0 times theorem prover too weak. 98 trivial. 0 not checked. [2021-11-16 20:18:06,609 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-16 20:18:06,609 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1871105959] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-16 20:18:06,610 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-16 20:18:06,610 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [13] total 18 [2021-11-16 20:18:06,610 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1015318088] [2021-11-16 20:18:06,610 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-16 20:18:06,610 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-11-16 20:18:06,610 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-16 20:18:06,611 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-11-16 20:18:06,611 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=254, Unknown=0, NotChecked=0, Total=306 [2021-11-16 20:18:06,611 INFO L87 Difference]: Start difference. First operand 151 states and 199 transitions. Second operand has 12 states, 12 states have (on average 5.916666666666667) internal successors, (71), 10 states have internal predecessors, (71), 5 states have call successors, (20), 3 states have call predecessors, (20), 4 states have return successors, (19), 5 states have call predecessors, (19), 5 states have call successors, (19) [2021-11-16 20:18:06,662 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-16 20:18:06,662 INFO L93 Difference]: Finished difference Result 292 states and 385 transitions. [2021-11-16 20:18:06,662 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-11-16 20:18:06,663 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 5.916666666666667) internal successors, (71), 10 states have internal predecessors, (71), 5 states have call successors, (20), 3 states have call predecessors, (20), 4 states have return successors, (19), 5 states have call predecessors, (19), 5 states have call successors, (19) Word has length 149 [2021-11-16 20:18:06,663 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-16 20:18:06,664 INFO L225 Difference]: With dead ends: 292 [2021-11-16 20:18:06,664 INFO L226 Difference]: Without dead ends: 170 [2021-11-16 20:18:06,665 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 200 GetRequests, 182 SyntacticMatches, 1 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 56 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=58, Invalid=284, Unknown=0, NotChecked=0, Total=342 [2021-11-16 20:18:06,665 INFO L933 BasicCegarLoop]: 174 mSDtfsCounter, 32 mSDsluCounter, 657 mSDsCounter, 0 mSdLazyCounter, 38 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 34 SdHoareTripleChecker+Valid, 831 SdHoareTripleChecker+Invalid, 101 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 38 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 58 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-16 20:18:06,666 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [34 Valid, 831 Invalid, 101 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 38 Invalid, 0 Unknown, 58 Unchecked, 0.0s Time] [2021-11-16 20:18:06,666 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 170 states. [2021-11-16 20:18:06,672 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 170 to 170. [2021-11-16 20:18:06,673 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 170 states, 119 states have (on average 1.218487394957983) internal successors, (145), 121 states have internal predecessors, (145), 37 states have call successors, (37), 12 states have call predecessors, (37), 13 states have return successors, (40), 36 states have call predecessors, (40), 36 states have call successors, (40) [2021-11-16 20:18:06,674 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 170 states to 170 states and 222 transitions. [2021-11-16 20:18:06,674 INFO L78 Accepts]: Start accepts. Automaton has 170 states and 222 transitions. Word has length 149 [2021-11-16 20:18:06,674 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-16 20:18:06,674 INFO L470 AbstractCegarLoop]: Abstraction has 170 states and 222 transitions. [2021-11-16 20:18:06,675 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 5.916666666666667) internal successors, (71), 10 states have internal predecessors, (71), 5 states have call successors, (20), 3 states have call predecessors, (20), 4 states have return successors, (19), 5 states have call predecessors, (19), 5 states have call successors, (19) [2021-11-16 20:18:06,675 INFO L276 IsEmpty]: Start isEmpty. Operand 170 states and 222 transitions. [2021-11-16 20:18:06,676 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2021-11-16 20:18:06,676 INFO L506 BasicCegarLoop]: Found error trace [2021-11-16 20:18:06,676 INFO L514 BasicCegarLoop]: trace histogram [10, 10, 10, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-16 20:18:06,697 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2021-11-16 20:18:06,891 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-16 20:18:06,891 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-16 20:18:06,892 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-16 20:18:06,892 INFO L85 PathProgramCache]: Analyzing trace with hash -2008554549, now seen corresponding path program 1 times [2021-11-16 20:18:06,892 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-16 20:18:06,892 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1386823025] [2021-11-16 20:18:06,892 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-16 20:18:06,892 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-16 20:18:06,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-16 20:18:06,965 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-16 20:18:06,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-16 20:18:06,970 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2021-11-16 20:18:06,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-16 20:18:06,977 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-11-16 20:18:06,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-16 20:18:06,983 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-16 20:18:06,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-16 20:18:06,987 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-11-16 20:18:06,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-16 20:18:06,992 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2021-11-16 20:18:06,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-16 20:18:06,997 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2021-11-16 20:18:06,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-16 20:18:07,002 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2021-11-16 20:18:07,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-16 20:18:07,007 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-16 20:18:07,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-16 20:18:07,011 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2021-11-16 20:18:07,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-16 20:18:07,025 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2021-11-16 20:18:07,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-16 20:18:07,036 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2021-11-16 20:18:07,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-16 20:18:07,042 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2021-11-16 20:18:07,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-16 20:18:07,046 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2021-11-16 20:18:07,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-16 20:18:07,055 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2021-11-16 20:18:07,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-16 20:18:07,059 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2021-11-16 20:18:07,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-16 20:18:07,063 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2021-11-16 20:18:07,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-16 20:18:07,069 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-16 20:18:07,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-16 20:18:07,073 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-16 20:18:07,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-16 20:18:07,077 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2021-11-16 20:18:07,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-16 20:18:07,084 INFO L134 CoverageAnalysis]: Checked inductivity of 222 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 210 trivial. 0 not checked. [2021-11-16 20:18:07,084 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-16 20:18:07,085 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1386823025] [2021-11-16 20:18:07,085 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1386823025] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-16 20:18:07,085 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1150980883] [2021-11-16 20:18:07,085 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-16 20:18:07,085 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-16 20:18:07,085 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-16 20:18:07,086 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-16 20:18:07,087 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2021-11-16 20:18:07,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-16 20:18:07,425 INFO L263 TraceCheckSpWp]: Trace formula consists of 2725 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-16 20:18:07,427 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-16 20:18:07,645 INFO L134 CoverageAnalysis]: Checked inductivity of 222 backedges. 114 proven. 0 refuted. 0 times theorem prover too weak. 108 trivial. 0 not checked. [2021-11-16 20:18:07,645 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-16 20:18:07,646 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1150980883] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-16 20:18:07,646 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-16 20:18:07,646 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [6] total 6 [2021-11-16 20:18:07,646 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1692829664] [2021-11-16 20:18:07,646 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-16 20:18:07,646 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-16 20:18:07,647 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-16 20:18:07,647 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-16 20:18:07,647 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-11-16 20:18:07,647 INFO L87 Difference]: Start difference. First operand 170 states and 222 transitions. Second operand has 4 states, 4 states have (on average 16.5) internal successors, (66), 4 states have internal predecessors, (66), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2021-11-16 20:18:07,665 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-16 20:18:07,665 INFO L93 Difference]: Finished difference Result 301 states and 400 transitions. [2021-11-16 20:18:07,665 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-16 20:18:07,666 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 16.5) internal successors, (66), 4 states have internal predecessors, (66), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) Word has length 149 [2021-11-16 20:18:07,666 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-16 20:18:07,666 INFO L225 Difference]: With dead ends: 301 [2021-11-16 20:18:07,667 INFO L226 Difference]: Without dead ends: 179 [2021-11-16 20:18:07,667 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 194 GetRequests, 189 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2021-11-16 20:18:07,668 INFO L933 BasicCegarLoop]: 191 mSDtfsCounter, 20 mSDsluCounter, 341 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 532 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-16 20:18:07,668 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [20 Valid, 532 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-16 20:18:07,668 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 179 states. [2021-11-16 20:18:07,672 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 179 to 162. [2021-11-16 20:18:07,673 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 162 states, 112 states have (on average 1.2142857142857142) internal successors, (136), 113 states have internal predecessors, (136), 37 states have call successors, (37), 12 states have call predecessors, (37), 12 states have return successors, (39), 36 states have call predecessors, (39), 36 states have call successors, (39) [2021-11-16 20:18:07,674 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 162 states to 162 states and 212 transitions. [2021-11-16 20:18:07,674 INFO L78 Accepts]: Start accepts. Automaton has 162 states and 212 transitions. Word has length 149 [2021-11-16 20:18:07,674 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-16 20:18:07,674 INFO L470 AbstractCegarLoop]: Abstraction has 162 states and 212 transitions. [2021-11-16 20:18:07,674 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 16.5) internal successors, (66), 4 states have internal predecessors, (66), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2021-11-16 20:18:07,674 INFO L276 IsEmpty]: Start isEmpty. Operand 162 states and 212 transitions. [2021-11-16 20:18:07,675 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2021-11-16 20:18:07,675 INFO L506 BasicCegarLoop]: Found error trace [2021-11-16 20:18:07,675 INFO L514 BasicCegarLoop]: trace histogram [10, 10, 10, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-16 20:18:07,711 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2021-11-16 20:18:07,891 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-16 20:18:07,891 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-16 20:18:07,892 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-16 20:18:07,892 INFO L85 PathProgramCache]: Analyzing trace with hash 1622537167, now seen corresponding path program 2 times [2021-11-16 20:18:07,892 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-16 20:18:07,892 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2101196904] [2021-11-16 20:18:07,892 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-16 20:18:07,892 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-16 20:18:08,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-16 20:18:08,062 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-16 20:18:08,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-16 20:18:08,066 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2021-11-16 20:18:08,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-16 20:18:08,073 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-11-16 20:18:08,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-16 20:18:08,077 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-16 20:18:08,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-16 20:18:08,080 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-11-16 20:18:08,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-16 20:18:08,083 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2021-11-16 20:18:08,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-16 20:18:08,086 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2021-11-16 20:18:08,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-16 20:18:08,089 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2021-11-16 20:18:08,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-16 20:18:08,093 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-16 20:18:08,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-16 20:18:08,097 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2021-11-16 20:18:08,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-16 20:18:08,135 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2021-11-16 20:18:08,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-16 20:18:08,175 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2021-11-16 20:18:08,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-16 20:18:08,182 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2021-11-16 20:18:08,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-16 20:18:08,186 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-11-16 20:18:08,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-16 20:18:08,205 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2021-11-16 20:18:08,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-16 20:18:08,209 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2021-11-16 20:18:08,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-16 20:18:08,213 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2021-11-16 20:18:08,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-16 20:18:08,219 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-16 20:18:08,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-16 20:18:08,224 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-16 20:18:08,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-16 20:18:08,228 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2021-11-16 20:18:08,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-16 20:18:08,235 INFO L134 CoverageAnalysis]: Checked inductivity of 226 backedges. 15 proven. 21 refuted. 0 times theorem prover too weak. 190 trivial. 0 not checked. [2021-11-16 20:18:08,236 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-16 20:18:08,236 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2101196904] [2021-11-16 20:18:08,236 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2101196904] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-16 20:18:08,236 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1006098643] [2021-11-16 20:18:08,236 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-11-16 20:18:08,236 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-16 20:18:08,236 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-16 20:18:08,237 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-16 20:18:08,238 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2021-11-16 20:18:08,990 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-11-16 20:18:08,991 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-16 20:18:09,000 INFO L263 TraceCheckSpWp]: Trace formula consists of 2737 conjuncts, 24 conjunts are in the unsatisfiable core [2021-11-16 20:18:09,003 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-16 20:18:09,254 INFO L134 CoverageAnalysis]: Checked inductivity of 226 backedges. 137 proven. 0 refuted. 0 times theorem prover too weak. 89 trivial. 0 not checked. [2021-11-16 20:18:09,254 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-16 20:18:09,254 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1006098643] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-16 20:18:09,254 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-16 20:18:09,254 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [11] total 12 [2021-11-16 20:18:09,255 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1701957489] [2021-11-16 20:18:09,255 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-16 20:18:09,256 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-11-16 20:18:09,256 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-16 20:18:09,256 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-11-16 20:18:09,257 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=110, Unknown=0, NotChecked=0, Total=132 [2021-11-16 20:18:09,257 INFO L87 Difference]: Start difference. First operand 162 states and 212 transitions. Second operand has 9 states, 8 states have (on average 9.5) internal successors, (76), 8 states have internal predecessors, (76), 3 states have call successors, (20), 2 states have call predecessors, (20), 4 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) [2021-11-16 20:18:09,360 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-16 20:18:09,360 INFO L93 Difference]: Finished difference Result 289 states and 381 transitions. [2021-11-16 20:18:09,361 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-16 20:18:09,361 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 9.5) internal successors, (76), 8 states have internal predecessors, (76), 3 states have call successors, (20), 2 states have call predecessors, (20), 4 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) Word has length 153 [2021-11-16 20:18:09,361 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-16 20:18:09,362 INFO L225 Difference]: With dead ends: 289 [2021-11-16 20:18:09,362 INFO L226 Difference]: Without dead ends: 167 [2021-11-16 20:18:09,362 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 203 GetRequests, 189 SyntacticMatches, 1 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=37, Invalid=173, Unknown=0, NotChecked=0, Total=210 [2021-11-16 20:18:09,363 INFO L933 BasicCegarLoop]: 168 mSDtfsCounter, 12 mSDsluCounter, 1132 mSDsCounter, 0 mSdLazyCounter, 149 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 1300 SdHoareTripleChecker+Invalid, 151 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 149 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-16 20:18:09,363 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [12 Valid, 1300 Invalid, 151 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 149 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-16 20:18:09,364 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 167 states. [2021-11-16 20:18:09,380 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 167 to 167. [2021-11-16 20:18:09,380 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 167 states, 116 states have (on average 1.206896551724138) internal successors, (140), 118 states have internal predecessors, (140), 37 states have call successors, (37), 12 states have call predecessors, (37), 13 states have return successors, (42), 36 states have call predecessors, (42), 36 states have call successors, (42) [2021-11-16 20:18:09,381 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 167 states to 167 states and 219 transitions. [2021-11-16 20:18:09,381 INFO L78 Accepts]: Start accepts. Automaton has 167 states and 219 transitions. Word has length 153 [2021-11-16 20:18:09,381 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-16 20:18:09,381 INFO L470 AbstractCegarLoop]: Abstraction has 167 states and 219 transitions. [2021-11-16 20:18:09,381 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 9.5) internal successors, (76), 8 states have internal predecessors, (76), 3 states have call successors, (20), 2 states have call predecessors, (20), 4 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) [2021-11-16 20:18:09,381 INFO L276 IsEmpty]: Start isEmpty. Operand 167 states and 219 transitions. [2021-11-16 20:18:09,382 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2021-11-16 20:18:09,382 INFO L506 BasicCegarLoop]: Found error trace [2021-11-16 20:18:09,382 INFO L514 BasicCegarLoop]: trace histogram [10, 10, 10, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-16 20:18:09,404 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2021-11-16 20:18:09,583 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-16 20:18:09,583 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-16 20:18:09,583 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-16 20:18:09,583 INFO L85 PathProgramCache]: Analyzing trace with hash -251458092, now seen corresponding path program 1 times [2021-11-16 20:18:09,583 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-16 20:18:09,584 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [434431958] [2021-11-16 20:18:09,584 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-16 20:18:09,584 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-16 20:18:09,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-16 20:18:09,640 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-16 20:18:09,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-16 20:18:09,644 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2021-11-16 20:18:09,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-16 20:18:09,651 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-11-16 20:18:09,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-16 20:18:09,655 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-16 20:18:09,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-16 20:18:09,658 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-11-16 20:18:09,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-16 20:18:09,661 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2021-11-16 20:18:09,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-16 20:18:09,664 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2021-11-16 20:18:09,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-16 20:18:09,668 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2021-11-16 20:18:09,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-16 20:18:09,671 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-16 20:18:09,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-16 20:18:09,675 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2021-11-16 20:18:09,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-16 20:18:09,688 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2021-11-16 20:18:09,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-16 20:18:09,698 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2021-11-16 20:18:09,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-16 20:18:09,703 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2021-11-16 20:18:09,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-16 20:18:09,709 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2021-11-16 20:18:09,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-16 20:18:09,714 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2021-11-16 20:18:09,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-16 20:18:09,718 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2021-11-16 20:18:09,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-16 20:18:09,721 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2021-11-16 20:18:09,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-16 20:18:09,726 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-16 20:18:09,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-16 20:18:09,730 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-16 20:18:09,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-16 20:18:09,733 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2021-11-16 20:18:09,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-16 20:18:09,739 INFO L134 CoverageAnalysis]: Checked inductivity of 226 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 215 trivial. 0 not checked. [2021-11-16 20:18:09,740 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-16 20:18:09,740 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [434431958] [2021-11-16 20:18:09,740 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [434431958] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-16 20:18:09,740 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [418973294] [2021-11-16 20:18:09,740 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-16 20:18:09,740 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-16 20:18:09,740 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-16 20:18:09,741 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-16 20:18:09,742 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2021-11-16 20:18:10,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-16 20:18:10,074 INFO L263 TraceCheckSpWp]: Trace formula consists of 2742 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-16 20:18:10,077 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-16 20:18:10,291 INFO L134 CoverageAnalysis]: Checked inductivity of 226 backedges. 117 proven. 0 refuted. 0 times theorem prover too weak. 109 trivial. 0 not checked. [2021-11-16 20:18:10,292 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-16 20:18:10,292 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [418973294] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-16 20:18:10,292 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-16 20:18:10,292 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [6] total 6 [2021-11-16 20:18:10,292 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [137274740] [2021-11-16 20:18:10,292 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-16 20:18:10,293 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-16 20:18:10,293 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-16 20:18:10,293 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-16 20:18:10,293 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-11-16 20:18:10,293 INFO L87 Difference]: Start difference. First operand 167 states and 219 transitions. Second operand has 4 states, 4 states have (on average 17.75) internal successors, (71), 4 states have internal predecessors, (71), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2021-11-16 20:18:10,312 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-16 20:18:10,312 INFO L93 Difference]: Finished difference Result 299 states and 397 transitions. [2021-11-16 20:18:10,313 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-16 20:18:10,313 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 17.75) internal successors, (71), 4 states have internal predecessors, (71), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) Word has length 155 [2021-11-16 20:18:10,313 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-16 20:18:10,314 INFO L225 Difference]: With dead ends: 299 [2021-11-16 20:18:10,314 INFO L226 Difference]: Without dead ends: 170 [2021-11-16 20:18:10,314 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 200 GetRequests, 195 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2021-11-16 20:18:10,315 INFO L933 BasicCegarLoop]: 177 mSDtfsCounter, 9 mSDsluCounter, 348 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 525 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-16 20:18:10,315 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [9 Valid, 525 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-16 20:18:10,316 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 170 states. [2021-11-16 20:18:10,319 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 170 to 167. [2021-11-16 20:18:10,320 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 167 states, 116 states have (on average 1.1896551724137931) internal successors, (138), 118 states have internal predecessors, (138), 37 states have call successors, (37), 12 states have call predecessors, (37), 13 states have return successors, (42), 36 states have call predecessors, (42), 36 states have call successors, (42) [2021-11-16 20:18:10,321 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 167 states to 167 states and 217 transitions. [2021-11-16 20:18:10,321 INFO L78 Accepts]: Start accepts. Automaton has 167 states and 217 transitions. Word has length 155 [2021-11-16 20:18:10,321 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-16 20:18:10,321 INFO L470 AbstractCegarLoop]: Abstraction has 167 states and 217 transitions. [2021-11-16 20:18:10,321 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 17.75) internal successors, (71), 4 states have internal predecessors, (71), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2021-11-16 20:18:10,321 INFO L276 IsEmpty]: Start isEmpty. Operand 167 states and 217 transitions. [2021-11-16 20:18:10,322 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2021-11-16 20:18:10,323 INFO L506 BasicCegarLoop]: Found error trace [2021-11-16 20:18:10,323 INFO L514 BasicCegarLoop]: trace histogram [10, 10, 10, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-16 20:18:10,359 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2021-11-16 20:18:10,523 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-16 20:18:10,523 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-16 20:18:10,524 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-16 20:18:10,524 INFO L85 PathProgramCache]: Analyzing trace with hash 1378113304, now seen corresponding path program 1 times [2021-11-16 20:18:10,524 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-16 20:18:10,524 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1658161914] [2021-11-16 20:18:10,524 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-16 20:18:10,524 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-16 20:18:10,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-16 20:18:10,580 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-16 20:18:10,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-16 20:18:10,584 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2021-11-16 20:18:10,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-16 20:18:10,591 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-11-16 20:18:10,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-16 20:18:10,596 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-16 20:18:10,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-16 20:18:10,599 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-11-16 20:18:10,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-16 20:18:10,602 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2021-11-16 20:18:10,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-16 20:18:10,605 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2021-11-16 20:18:10,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-16 20:18:10,609 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2021-11-16 20:18:10,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-16 20:18:10,613 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-16 20:18:10,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-16 20:18:10,632 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2021-11-16 20:18:10,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-16 20:18:10,645 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2021-11-16 20:18:10,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-16 20:18:10,655 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2021-11-16 20:18:10,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-16 20:18:10,660 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2021-11-16 20:18:10,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-16 20:18:10,664 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2021-11-16 20:18:10,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-16 20:18:10,671 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2021-11-16 20:18:10,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-16 20:18:10,675 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2021-11-16 20:18:10,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-16 20:18:10,679 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2021-11-16 20:18:10,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-16 20:18:10,685 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-16 20:18:10,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-16 20:18:10,689 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-16 20:18:10,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-16 20:18:10,694 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2021-11-16 20:18:10,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-16 20:18:10,701 INFO L134 CoverageAnalysis]: Checked inductivity of 226 backedges. 0 proven. 20 refuted. 0 times theorem prover too weak. 206 trivial. 0 not checked. [2021-11-16 20:18:10,701 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-16 20:18:10,701 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1658161914] [2021-11-16 20:18:10,702 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1658161914] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-16 20:18:10,702 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1909306617] [2021-11-16 20:18:10,702 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-16 20:18:10,702 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-16 20:18:10,702 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-16 20:18:10,703 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-16 20:18:10,704 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2021-11-16 20:18:11,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-16 20:18:11,045 INFO L263 TraceCheckSpWp]: Trace formula consists of 2744 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-16 20:18:11,048 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-16 20:18:11,250 INFO L134 CoverageAnalysis]: Checked inductivity of 226 backedges. 110 proven. 0 refuted. 0 times theorem prover too weak. 116 trivial. 0 not checked. [2021-11-16 20:18:11,250 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-16 20:18:11,251 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1909306617] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-16 20:18:11,251 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-16 20:18:11,251 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [6] total 6 [2021-11-16 20:18:11,251 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1995900943] [2021-11-16 20:18:11,251 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-16 20:18:11,251 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-16 20:18:11,251 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-16 20:18:11,252 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-16 20:18:11,252 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-11-16 20:18:11,252 INFO L87 Difference]: Start difference. First operand 167 states and 217 transitions. Second operand has 4 states, 4 states have (on average 17.0) internal successors, (68), 4 states have internal predecessors, (68), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2021-11-16 20:18:11,269 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-16 20:18:11,269 INFO L93 Difference]: Finished difference Result 305 states and 405 transitions. [2021-11-16 20:18:11,269 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-16 20:18:11,270 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 17.0) internal successors, (68), 4 states have internal predecessors, (68), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) Word has length 155 [2021-11-16 20:18:11,270 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-16 20:18:11,270 INFO L225 Difference]: With dead ends: 305 [2021-11-16 20:18:11,271 INFO L226 Difference]: Without dead ends: 176 [2021-11-16 20:18:11,271 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 200 GetRequests, 195 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2021-11-16 20:18:11,271 INFO L933 BasicCegarLoop]: 177 mSDtfsCounter, 34 mSDsluCounter, 346 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 34 SdHoareTripleChecker+Valid, 523 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-16 20:18:11,272 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [34 Valid, 523 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-16 20:18:11,272 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 176 states. [2021-11-16 20:18:11,276 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 176 to 163. [2021-11-16 20:18:11,276 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 163 states, 112 states have (on average 1.1696428571428572) internal successors, (131), 114 states have internal predecessors, (131), 37 states have call successors, (37), 12 states have call predecessors, (37), 13 states have return successors, (42), 36 states have call predecessors, (42), 36 states have call successors, (42) [2021-11-16 20:18:11,277 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 163 states to 163 states and 210 transitions. [2021-11-16 20:18:11,277 INFO L78 Accepts]: Start accepts. Automaton has 163 states and 210 transitions. Word has length 155 [2021-11-16 20:18:11,277 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-16 20:18:11,277 INFO L470 AbstractCegarLoop]: Abstraction has 163 states and 210 transitions. [2021-11-16 20:18:11,278 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 17.0) internal successors, (68), 4 states have internal predecessors, (68), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2021-11-16 20:18:11,278 INFO L276 IsEmpty]: Start isEmpty. Operand 163 states and 210 transitions. [2021-11-16 20:18:11,279 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2021-11-16 20:18:11,279 INFO L506 BasicCegarLoop]: Found error trace [2021-11-16 20:18:11,279 INFO L514 BasicCegarLoop]: trace histogram [10, 10, 10, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-16 20:18:11,300 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2021-11-16 20:18:11,495 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-16 20:18:11,495 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-16 20:18:11,496 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-16 20:18:11,496 INFO L85 PathProgramCache]: Analyzing trace with hash -1565468774, now seen corresponding path program 1 times [2021-11-16 20:18:11,496 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-16 20:18:11,496 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [624512973] [2021-11-16 20:18:11,496 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-16 20:18:11,496 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-16 20:18:12,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-16 20:18:12,119 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-16 20:18:12,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-16 20:18:12,124 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2021-11-16 20:18:12,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-16 20:18:12,133 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-11-16 20:18:12,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-16 20:18:12,139 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-16 20:18:12,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-16 20:18:12,143 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-11-16 20:18:12,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-16 20:18:12,147 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2021-11-16 20:18:12,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-16 20:18:12,151 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2021-11-16 20:18:12,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-16 20:18:12,155 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2021-11-16 20:18:12,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-16 20:18:12,161 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-16 20:18:12,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-16 20:18:12,165 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2021-11-16 20:18:12,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-16 20:18:12,173 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2021-11-16 20:18:12,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-16 20:18:12,183 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2021-11-16 20:18:12,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-16 20:18:12,188 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2021-11-16 20:18:12,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-16 20:18:12,193 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2021-11-16 20:18:12,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-16 20:18:12,268 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2021-11-16 20:18:12,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-16 20:18:12,281 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2021-11-16 20:18:12,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-16 20:18:12,286 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2021-11-16 20:18:12,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-16 20:18:12,295 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-16 20:18:12,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-16 20:18:12,299 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-16 20:18:12,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-16 20:18:12,303 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2021-11-16 20:18:12,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-16 20:18:12,412 INFO L134 CoverageAnalysis]: Checked inductivity of 226 backedges. 24 proven. 6 refuted. 0 times theorem prover too weak. 196 trivial. 0 not checked. [2021-11-16 20:18:12,413 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-16 20:18:12,413 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [624512973] [2021-11-16 20:18:12,413 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [624512973] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-16 20:18:12,413 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1369377436] [2021-11-16 20:18:12,413 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-16 20:18:12,413 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-16 20:18:12,413 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-16 20:18:12,414 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-16 20:18:12,415 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2021-11-16 20:18:12,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-16 20:18:12,736 INFO L263 TraceCheckSpWp]: Trace formula consists of 2739 conjuncts, 53 conjunts are in the unsatisfiable core [2021-11-16 20:18:12,739 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-16 20:18:12,877 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2021-11-16 20:18:13,831 INFO L134 CoverageAnalysis]: Checked inductivity of 226 backedges. 114 proven. 22 refuted. 0 times theorem prover too weak. 90 trivial. 0 not checked. [2021-11-16 20:18:13,831 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-16 20:18:14,487 INFO L134 CoverageAnalysis]: Checked inductivity of 226 backedges. 10 proven. 24 refuted. 0 times theorem prover too weak. 192 trivial. 0 not checked. [2021-11-16 20:18:14,487 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1369377436] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-16 20:18:14,488 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-16 20:18:14,488 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 15, 11] total 34 [2021-11-16 20:18:14,488 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1456125391] [2021-11-16 20:18:14,488 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-16 20:18:14,488 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 34 states [2021-11-16 20:18:14,489 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-16 20:18:14,489 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2021-11-16 20:18:14,489 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=102, Invalid=1020, Unknown=0, NotChecked=0, Total=1122 [2021-11-16 20:18:14,490 INFO L87 Difference]: Start difference. First operand 163 states and 210 transitions. Second operand has 34 states, 32 states have (on average 5.71875) internal successors, (183), 32 states have internal predecessors, (183), 12 states have call successors, (49), 7 states have call predecessors, (49), 9 states have return successors, (48), 10 states have call predecessors, (48), 11 states have call successors, (48) [2021-11-16 20:18:24,588 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-16 20:18:24,588 INFO L93 Difference]: Finished difference Result 622 states and 890 transitions. [2021-11-16 20:18:24,588 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 55 states. [2021-11-16 20:18:24,588 INFO L78 Accepts]: Start accepts. Automaton has has 34 states, 32 states have (on average 5.71875) internal successors, (183), 32 states have internal predecessors, (183), 12 states have call successors, (49), 7 states have call predecessors, (49), 9 states have return successors, (48), 10 states have call predecessors, (48), 11 states have call successors, (48) Word has length 155 [2021-11-16 20:18:24,589 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-16 20:18:24,592 INFO L225 Difference]: With dead ends: 622 [2021-11-16 20:18:24,592 INFO L226 Difference]: Without dead ends: 529 [2021-11-16 20:18:24,594 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 430 GetRequests, 334 SyntacticMatches, 19 SemanticMatches, 77 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1808 ImplicationChecksByTransitivity, 3.0s TimeCoverageRelationStatistics Valid=896, Invalid=5266, Unknown=0, NotChecked=0, Total=6162 [2021-11-16 20:18:24,594 INFO L933 BasicCegarLoop]: 325 mSDtfsCounter, 747 mSDsluCounter, 3389 mSDsCounter, 0 mSdLazyCounter, 6722 mSolverCounterSat, 673 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 751 SdHoareTripleChecker+Valid, 3714 SdHoareTripleChecker+Invalid, 8375 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 673 IncrementalHoareTripleChecker+Valid, 6722 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 980 IncrementalHoareTripleChecker+Unchecked, 7.8s IncrementalHoareTripleChecker+Time [2021-11-16 20:18:24,594 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [751 Valid, 3714 Invalid, 8375 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [673 Valid, 6722 Invalid, 0 Unknown, 980 Unchecked, 7.8s Time] [2021-11-16 20:18:24,595 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 529 states. [2021-11-16 20:18:24,610 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 529 to 233. [2021-11-16 20:18:24,611 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 233 states, 163 states have (on average 1.147239263803681) internal successors, (187), 168 states have internal predecessors, (187), 49 states have call successors, (49), 16 states have call predecessors, (49), 20 states have return successors, (70), 48 states have call predecessors, (70), 48 states have call successors, (70) [2021-11-16 20:18:24,612 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 233 states to 233 states and 306 transitions. [2021-11-16 20:18:24,612 INFO L78 Accepts]: Start accepts. Automaton has 233 states and 306 transitions. Word has length 155 [2021-11-16 20:18:24,612 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-16 20:18:24,612 INFO L470 AbstractCegarLoop]: Abstraction has 233 states and 306 transitions. [2021-11-16 20:18:24,613 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 34 states, 32 states have (on average 5.71875) internal successors, (183), 32 states have internal predecessors, (183), 12 states have call successors, (49), 7 states have call predecessors, (49), 9 states have return successors, (48), 10 states have call predecessors, (48), 11 states have call successors, (48) [2021-11-16 20:18:24,613 INFO L276 IsEmpty]: Start isEmpty. Operand 233 states and 306 transitions. [2021-11-16 20:18:24,614 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2021-11-16 20:18:24,614 INFO L506 BasicCegarLoop]: Found error trace [2021-11-16 20:18:24,614 INFO L514 BasicCegarLoop]: trace histogram [10, 10, 10, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-16 20:18:24,636 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2021-11-16 20:18:24,833 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2021-11-16 20:18:24,834 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-16 20:18:24,834 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-16 20:18:24,834 INFO L85 PathProgramCache]: Analyzing trace with hash -396878496, now seen corresponding path program 1 times [2021-11-16 20:18:24,834 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-16 20:18:24,834 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [222971930] [2021-11-16 20:18:24,834 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-16 20:18:24,834 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-16 20:18:24,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-16 20:18:25,099 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-16 20:18:25,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-16 20:18:25,104 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2021-11-16 20:18:25,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-16 20:18:25,118 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-11-16 20:18:25,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-16 20:18:25,123 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-16 20:18:25,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-16 20:18:25,127 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-11-16 20:18:25,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-16 20:18:25,134 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2021-11-16 20:18:25,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-16 20:18:25,142 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2021-11-16 20:18:25,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-16 20:18:25,148 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2021-11-16 20:18:25,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-16 20:18:25,166 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-16 20:18:25,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-16 20:18:25,171 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2021-11-16 20:18:25,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-16 20:18:25,178 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2021-11-16 20:18:25,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-16 20:18:25,199 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2021-11-16 20:18:25,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-16 20:18:25,260 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2021-11-16 20:18:25,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-16 20:18:25,284 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2021-11-16 20:18:25,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-16 20:18:25,292 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2021-11-16 20:18:25,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-16 20:18:25,297 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2021-11-16 20:18:25,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-16 20:18:25,306 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2021-11-16 20:18:25,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-16 20:18:25,313 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-16 20:18:25,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-16 20:18:25,317 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-16 20:18:25,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-16 20:18:25,321 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2021-11-16 20:18:25,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-16 20:18:25,420 INFO L134 CoverageAnalysis]: Checked inductivity of 226 backedges. 26 proven. 3 refuted. 0 times theorem prover too weak. 197 trivial. 0 not checked. [2021-11-16 20:18:25,420 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-16 20:18:25,420 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [222971930] [2021-11-16 20:18:25,420 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [222971930] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-16 20:18:25,420 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [908447964] [2021-11-16 20:18:25,421 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-16 20:18:25,421 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-16 20:18:25,421 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-16 20:18:25,422 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-16 20:18:25,423 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2021-11-16 20:18:25,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-16 20:18:25,790 INFO L263 TraceCheckSpWp]: Trace formula consists of 2736 conjuncts, 45 conjunts are in the unsatisfiable core [2021-11-16 20:18:25,793 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-16 20:18:25,964 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 14 [2021-11-16 20:18:26,603 INFO L134 CoverageAnalysis]: Checked inductivity of 226 backedges. 154 proven. 0 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked. [2021-11-16 20:18:26,603 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-16 20:18:26,603 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [908447964] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-16 20:18:26,604 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-16 20:18:26,604 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [18] total 30 [2021-11-16 20:18:26,604 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1105730158] [2021-11-16 20:18:26,604 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-16 20:18:26,604 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2021-11-16 20:18:26,604 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-16 20:18:26,604 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-11-16 20:18:26,605 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=84, Invalid=786, Unknown=0, NotChecked=0, Total=870 [2021-11-16 20:18:26,605 INFO L87 Difference]: Start difference. First operand 233 states and 306 transitions. Second operand has 15 states, 13 states have (on average 6.846153846153846) internal successors, (89), 14 states have internal predecessors, (89), 7 states have call successors, (20), 4 states have call predecessors, (20), 6 states have return successors, (19), 6 states have call predecessors, (19), 7 states have call successors, (19) [2021-11-16 20:18:28,582 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-16 20:18:28,582 INFO L93 Difference]: Finished difference Result 472 states and 609 transitions. [2021-11-16 20:18:28,583 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-11-16 20:18:28,583 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 13 states have (on average 6.846153846153846) internal successors, (89), 14 states have internal predecessors, (89), 7 states have call successors, (20), 4 states have call predecessors, (20), 6 states have return successors, (19), 6 states have call predecessors, (19), 7 states have call successors, (19) Word has length 155 [2021-11-16 20:18:28,583 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-16 20:18:28,584 INFO L225 Difference]: With dead ends: 472 [2021-11-16 20:18:28,584 INFO L226 Difference]: Without dead ends: 304 [2021-11-16 20:18:28,585 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 222 GetRequests, 182 SyntacticMatches, 4 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 206 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=138, Invalid=1268, Unknown=0, NotChecked=0, Total=1406 [2021-11-16 20:18:28,585 INFO L933 BasicCegarLoop]: 205 mSDtfsCounter, 115 mSDsluCounter, 705 mSDsCounter, 0 mSdLazyCounter, 555 mSolverCounterSat, 67 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 141 SdHoareTripleChecker+Valid, 910 SdHoareTripleChecker+Invalid, 1046 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 67 IncrementalHoareTripleChecker+Valid, 555 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 424 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2021-11-16 20:18:28,586 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [141 Valid, 910 Invalid, 1046 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [67 Valid, 555 Invalid, 0 Unknown, 424 Unchecked, 1.8s Time] [2021-11-16 20:18:28,586 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 304 states. [2021-11-16 20:18:28,595 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 304 to 252. [2021-11-16 20:18:28,595 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 252 states, 180 states have (on average 1.1444444444444444) internal successors, (206), 185 states have internal predecessors, (206), 49 states have call successors, (49), 18 states have call predecessors, (49), 22 states have return successors, (71), 48 states have call predecessors, (71), 48 states have call successors, (71) [2021-11-16 20:18:28,597 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 252 states to 252 states and 326 transitions. [2021-11-16 20:18:28,597 INFO L78 Accepts]: Start accepts. Automaton has 252 states and 326 transitions. Word has length 155 [2021-11-16 20:18:28,597 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-16 20:18:28,597 INFO L470 AbstractCegarLoop]: Abstraction has 252 states and 326 transitions. [2021-11-16 20:18:28,597 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 13 states have (on average 6.846153846153846) internal successors, (89), 14 states have internal predecessors, (89), 7 states have call successors, (20), 4 states have call predecessors, (20), 6 states have return successors, (19), 6 states have call predecessors, (19), 7 states have call successors, (19) [2021-11-16 20:18:28,597 INFO L276 IsEmpty]: Start isEmpty. Operand 252 states and 326 transitions. [2021-11-16 20:18:28,598 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2021-11-16 20:18:28,598 INFO L506 BasicCegarLoop]: Found error trace [2021-11-16 20:18:28,599 INFO L514 BasicCegarLoop]: trace histogram [11, 11, 11, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-16 20:18:28,620 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2021-11-16 20:18:28,811 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-16 20:18:28,811 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-16 20:18:28,812 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-16 20:18:28,812 INFO L85 PathProgramCache]: Analyzing trace with hash 1418790246, now seen corresponding path program 1 times [2021-11-16 20:18:28,812 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-16 20:18:28,812 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [727618589] [2021-11-16 20:18:28,812 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-16 20:18:28,812 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-16 20:18:28,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-16 20:18:29,022 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-16 20:18:29,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-16 20:18:29,027 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2021-11-16 20:18:29,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-16 20:18:29,035 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-11-16 20:18:29,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-16 20:18:29,046 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-16 20:18:29,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-16 20:18:29,050 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-11-16 20:18:29,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-16 20:18:29,053 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2021-11-16 20:18:29,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-16 20:18:29,056 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2021-11-16 20:18:29,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-16 20:18:29,059 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2021-11-16 20:18:29,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-16 20:18:29,062 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-16 20:18:29,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-16 20:18:29,065 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2021-11-16 20:18:29,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-16 20:18:29,070 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2021-11-16 20:18:29,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-16 20:18:29,079 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2021-11-16 20:18:29,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-16 20:18:29,083 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2021-11-16 20:18:29,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-16 20:18:29,088 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-16 20:18:29,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-16 20:18:29,091 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2021-11-16 20:18:29,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-16 20:18:29,095 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2021-11-16 20:18:29,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-16 20:18:29,099 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2021-11-16 20:18:29,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-16 20:18:29,102 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2021-11-16 20:18:29,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-16 20:18:29,201 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-16 20:18:29,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-16 20:18:29,210 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-16 20:18:29,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-16 20:18:29,215 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2021-11-16 20:18:29,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-16 20:18:29,337 INFO L134 CoverageAnalysis]: Checked inductivity of 266 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 242 trivial. 0 not checked. [2021-11-16 20:18:29,337 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-16 20:18:29,337 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [727618589] [2021-11-16 20:18:29,337 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [727618589] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-16 20:18:29,337 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-16 20:18:29,337 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2021-11-16 20:18:29,337 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [730341962] [2021-11-16 20:18:29,337 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-16 20:18:29,338 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2021-11-16 20:18:29,338 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-16 20:18:29,338 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-11-16 20:18:29,338 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=174, Unknown=0, NotChecked=0, Total=210 [2021-11-16 20:18:29,338 INFO L87 Difference]: Start difference. First operand 252 states and 326 transitions. Second operand has 15 states, 14 states have (on average 5.5) internal successors, (77), 13 states have internal predecessors, (77), 5 states have call successors, (21), 4 states have call predecessors, (21), 3 states have return successors, (20), 4 states have call predecessors, (20), 4 states have call successors, (20) [2021-11-16 20:18:31,530 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-16 20:18:31,530 INFO L93 Difference]: Finished difference Result 420 states and 555 transitions. [2021-11-16 20:18:31,531 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-11-16 20:18:31,531 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 14 states have (on average 5.5) internal successors, (77), 13 states have internal predecessors, (77), 5 states have call successors, (21), 4 states have call predecessors, (21), 3 states have return successors, (20), 4 states have call predecessors, (20), 4 states have call successors, (20) Word has length 162 [2021-11-16 20:18:31,532 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-16 20:18:31,533 INFO L225 Difference]: With dead ends: 420 [2021-11-16 20:18:31,533 INFO L226 Difference]: Without dead ends: 317 [2021-11-16 20:18:31,533 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 69 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=106, Invalid=446, Unknown=0, NotChecked=0, Total=552 [2021-11-16 20:18:31,534 INFO L933 BasicCegarLoop]: 184 mSDtfsCounter, 237 mSDsluCounter, 766 mSDsCounter, 0 mSdLazyCounter, 1304 mSolverCounterSat, 100 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 255 SdHoareTripleChecker+Valid, 950 SdHoareTripleChecker+Invalid, 1404 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 100 IncrementalHoareTripleChecker+Valid, 1304 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2021-11-16 20:18:31,534 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [255 Valid, 950 Invalid, 1404 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [100 Valid, 1304 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2021-11-16 20:18:31,534 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 317 states. [2021-11-16 20:18:31,554 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 317 to 260. [2021-11-16 20:18:31,554 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 260 states, 185 states have (on average 1.145945945945946) internal successors, (212), 191 states have internal predecessors, (212), 51 states have call successors, (51), 18 states have call predecessors, (51), 23 states have return successors, (80), 50 states have call predecessors, (80), 50 states have call successors, (80) [2021-11-16 20:18:31,555 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 260 states to 260 states and 343 transitions. [2021-11-16 20:18:31,556 INFO L78 Accepts]: Start accepts. Automaton has 260 states and 343 transitions. Word has length 162 [2021-11-16 20:18:31,556 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-16 20:18:31,556 INFO L470 AbstractCegarLoop]: Abstraction has 260 states and 343 transitions. [2021-11-16 20:18:31,556 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 14 states have (on average 5.5) internal successors, (77), 13 states have internal predecessors, (77), 5 states have call successors, (21), 4 states have call predecessors, (21), 3 states have return successors, (20), 4 states have call predecessors, (20), 4 states have call successors, (20) [2021-11-16 20:18:31,556 INFO L276 IsEmpty]: Start isEmpty. Operand 260 states and 343 transitions. [2021-11-16 20:18:31,557 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 167 [2021-11-16 20:18:31,557 INFO L506 BasicCegarLoop]: Found error trace [2021-11-16 20:18:31,558 INFO L514 BasicCegarLoop]: trace histogram [11, 11, 11, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-16 20:18:31,558 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-11-16 20:18:31,558 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-16 20:18:31,558 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-16 20:18:31,558 INFO L85 PathProgramCache]: Analyzing trace with hash 1125786090, now seen corresponding path program 1 times [2021-11-16 20:18:31,558 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-16 20:18:31,558 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1011765491] [2021-11-16 20:18:31,559 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-16 20:18:31,559 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-16 20:18:31,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-16 20:18:31,818 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-16 20:18:31,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-16 20:18:31,822 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2021-11-16 20:18:31,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-16 20:18:31,828 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-11-16 20:18:31,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-16 20:18:31,832 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-16 20:18:31,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-16 20:18:31,835 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-11-16 20:18:31,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-16 20:18:31,839 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2021-11-16 20:18:31,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-16 20:18:31,842 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2021-11-16 20:18:31,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-16 20:18:31,845 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2021-11-16 20:18:31,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-16 20:18:31,848 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-16 20:18:31,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-16 20:18:31,851 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2021-11-16 20:18:31,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-16 20:18:31,856 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2021-11-16 20:18:31,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-16 20:18:31,864 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2021-11-16 20:18:31,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-16 20:18:31,869 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2021-11-16 20:18:31,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-16 20:18:31,874 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-16 20:18:31,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-16 20:18:31,877 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2021-11-16 20:18:31,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-16 20:18:31,906 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2021-11-16 20:18:31,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-16 20:18:31,927 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2021-11-16 20:18:31,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-16 20:18:31,931 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2021-11-16 20:18:31,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-16 20:18:31,938 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-16 20:18:31,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-16 20:18:31,941 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-16 20:18:31,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-16 20:18:31,944 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2021-11-16 20:18:31,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-16 20:18:31,949 INFO L134 CoverageAnalysis]: Checked inductivity of 274 backedges. 26 proven. 14 refuted. 0 times theorem prover too weak. 234 trivial. 0 not checked. [2021-11-16 20:18:31,950 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-16 20:18:31,950 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1011765491] [2021-11-16 20:18:31,950 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1011765491] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-16 20:18:31,950 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [165415254] [2021-11-16 20:18:31,950 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-16 20:18:31,950 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-16 20:18:31,950 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-16 20:18:31,951 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-16 20:18:31,957 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2021-11-16 20:18:32,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-16 20:18:32,300 INFO L263 TraceCheckSpWp]: Trace formula consists of 2767 conjuncts, 24 conjunts are in the unsatisfiable core [2021-11-16 20:18:32,303 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-16 20:18:32,541 INFO L134 CoverageAnalysis]: Checked inductivity of 274 backedges. 152 proven. 0 refuted. 0 times theorem prover too weak. 122 trivial. 0 not checked. [2021-11-16 20:18:32,541 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-16 20:18:32,542 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [165415254] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-16 20:18:32,542 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-16 20:18:32,542 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [11] total 12 [2021-11-16 20:18:32,542 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [877401636] [2021-11-16 20:18:32,542 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-16 20:18:32,542 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-11-16 20:18:32,542 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-16 20:18:32,543 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-11-16 20:18:32,543 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=110, Unknown=0, NotChecked=0, Total=132 [2021-11-16 20:18:32,543 INFO L87 Difference]: Start difference. First operand 260 states and 343 transitions. Second operand has 9 states, 8 states have (on average 11.0) internal successors, (88), 8 states have internal predecessors, (88), 3 states have call successors, (21), 2 states have call predecessors, (21), 4 states have return successors, (20), 3 states have call predecessors, (20), 3 states have call successors, (20) [2021-11-16 20:18:32,659 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-16 20:18:32,659 INFO L93 Difference]: Finished difference Result 409 states and 523 transitions. [2021-11-16 20:18:32,660 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-16 20:18:32,660 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 11.0) internal successors, (88), 8 states have internal predecessors, (88), 3 states have call successors, (21), 2 states have call predecessors, (21), 4 states have return successors, (20), 3 states have call predecessors, (20), 3 states have call successors, (20) Word has length 166 [2021-11-16 20:18:32,660 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-16 20:18:32,661 INFO L225 Difference]: With dead ends: 409 [2021-11-16 20:18:32,661 INFO L226 Difference]: Without dead ends: 239 [2021-11-16 20:18:32,662 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 219 GetRequests, 205 SyntacticMatches, 1 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=37, Invalid=173, Unknown=0, NotChecked=0, Total=210 [2021-11-16 20:18:32,662 INFO L933 BasicCegarLoop]: 169 mSDtfsCounter, 12 mSDsluCounter, 1136 mSDsCounter, 0 mSdLazyCounter, 151 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 1305 SdHoareTripleChecker+Invalid, 153 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 151 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-16 20:18:32,662 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [12 Valid, 1305 Invalid, 153 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 151 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-16 20:18:32,663 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 239 states. [2021-11-16 20:18:32,670 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 239 to 236. [2021-11-16 20:18:32,671 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 236 states, 167 states have (on average 1.1377245508982037) internal successors, (190), 173 states have internal predecessors, (190), 46 states have call successors, (46), 17 states have call predecessors, (46), 22 states have return successors, (63), 45 states have call predecessors, (63), 45 states have call successors, (63) [2021-11-16 20:18:32,672 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 236 states to 236 states and 299 transitions. [2021-11-16 20:18:32,672 INFO L78 Accepts]: Start accepts. Automaton has 236 states and 299 transitions. Word has length 166 [2021-11-16 20:18:32,672 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-16 20:18:32,672 INFO L470 AbstractCegarLoop]: Abstraction has 236 states and 299 transitions. [2021-11-16 20:18:32,672 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 11.0) internal successors, (88), 8 states have internal predecessors, (88), 3 states have call successors, (21), 2 states have call predecessors, (21), 4 states have return successors, (20), 3 states have call predecessors, (20), 3 states have call successors, (20) [2021-11-16 20:18:32,672 INFO L276 IsEmpty]: Start isEmpty. Operand 236 states and 299 transitions. [2021-11-16 20:18:32,673 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2021-11-16 20:18:32,673 INFO L506 BasicCegarLoop]: Found error trace [2021-11-16 20:18:32,674 INFO L514 BasicCegarLoop]: trace histogram [11, 11, 11, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-16 20:18:32,698 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2021-11-16 20:18:32,887 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2021-11-16 20:18:32,887 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-16 20:18:32,888 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-16 20:18:32,888 INFO L85 PathProgramCache]: Analyzing trace with hash -427723094, now seen corresponding path program 1 times [2021-11-16 20:18:32,888 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-16 20:18:32,888 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1720079201] [2021-11-16 20:18:32,888 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-16 20:18:32,888 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-16 20:18:33,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-16 20:18:33,083 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-16 20:18:33,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-16 20:18:33,088 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2021-11-16 20:18:33,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-16 20:18:33,097 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-11-16 20:18:33,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-16 20:18:33,102 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-16 20:18:33,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-16 20:18:33,106 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-11-16 20:18:33,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-16 20:18:33,112 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2021-11-16 20:18:33,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-16 20:18:33,116 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2021-11-16 20:18:33,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-16 20:18:33,119 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2021-11-16 20:18:33,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-16 20:18:33,123 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-16 20:18:33,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-16 20:18:33,127 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2021-11-16 20:18:33,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-16 20:18:33,132 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2021-11-16 20:18:33,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-16 20:18:33,144 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2021-11-16 20:18:33,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-16 20:18:33,148 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2021-11-16 20:18:33,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-16 20:18:33,154 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-16 20:18:33,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-16 20:18:33,157 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2021-11-16 20:18:33,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-16 20:18:33,165 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2021-11-16 20:18:33,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-16 20:18:33,169 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2021-11-16 20:18:33,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-16 20:18:33,172 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2021-11-16 20:18:33,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-16 20:18:33,250 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-16 20:18:33,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-16 20:18:33,255 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-16 20:18:33,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-16 20:18:33,260 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2021-11-16 20:18:33,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-16 20:18:33,340 INFO L134 CoverageAnalysis]: Checked inductivity of 266 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 242 trivial. 0 not checked. [2021-11-16 20:18:33,340 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-16 20:18:33,340 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1720079201] [2021-11-16 20:18:33,341 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1720079201] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-16 20:18:33,341 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-16 20:18:33,341 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2021-11-16 20:18:33,341 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1754886791] [2021-11-16 20:18:33,341 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-16 20:18:33,341 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2021-11-16 20:18:33,342 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-16 20:18:33,342 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-11-16 20:18:33,342 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=152, Unknown=0, NotChecked=0, Total=182 [2021-11-16 20:18:33,342 INFO L87 Difference]: Start difference. First operand 236 states and 299 transitions. Second operand has 14 states, 13 states have (on average 5.923076923076923) internal successors, (77), 12 states have internal predecessors, (77), 5 states have call successors, (21), 4 states have call predecessors, (21), 3 states have return successors, (20), 4 states have call predecessors, (20), 4 states have call successors, (20) [2021-11-16 20:18:34,952 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-16 20:18:34,952 INFO L93 Difference]: Finished difference Result 386 states and 503 transitions. [2021-11-16 20:18:34,952 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-11-16 20:18:34,952 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 5.923076923076923) internal successors, (77), 12 states have internal predecessors, (77), 5 states have call successors, (21), 4 states have call predecessors, (21), 3 states have return successors, (20), 4 states have call predecessors, (20), 4 states have call successors, (20) Word has length 162 [2021-11-16 20:18:34,953 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-16 20:18:34,954 INFO L225 Difference]: With dead ends: 386 [2021-11-16 20:18:34,954 INFO L226 Difference]: Without dead ends: 283 [2021-11-16 20:18:34,954 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 46 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 53 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=99, Invalid=407, Unknown=0, NotChecked=0, Total=506 [2021-11-16 20:18:34,955 INFO L933 BasicCegarLoop]: 191 mSDtfsCounter, 235 mSDsluCounter, 836 mSDsCounter, 0 mSdLazyCounter, 1063 mSolverCounterSat, 84 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 253 SdHoareTripleChecker+Valid, 1027 SdHoareTripleChecker+Invalid, 1147 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 84 IncrementalHoareTripleChecker+Valid, 1063 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2021-11-16 20:18:34,955 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [253 Valid, 1027 Invalid, 1147 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [84 Valid, 1063 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2021-11-16 20:18:34,955 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 283 states. [2021-11-16 20:18:34,963 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 283 to 243. [2021-11-16 20:18:34,963 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 243 states, 172 states have (on average 1.1337209302325582) internal successors, (195), 179 states have internal predecessors, (195), 47 states have call successors, (47), 17 states have call predecessors, (47), 23 states have return successors, (68), 46 states have call predecessors, (68), 46 states have call successors, (68) [2021-11-16 20:18:34,964 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 243 states to 243 states and 310 transitions. [2021-11-16 20:18:34,965 INFO L78 Accepts]: Start accepts. Automaton has 243 states and 310 transitions. Word has length 162 [2021-11-16 20:18:34,965 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-16 20:18:34,965 INFO L470 AbstractCegarLoop]: Abstraction has 243 states and 310 transitions. [2021-11-16 20:18:34,965 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 5.923076923076923) internal successors, (77), 12 states have internal predecessors, (77), 5 states have call successors, (21), 4 states have call predecessors, (21), 3 states have return successors, (20), 4 states have call predecessors, (20), 4 states have call successors, (20) [2021-11-16 20:18:34,965 INFO L276 IsEmpty]: Start isEmpty. Operand 243 states and 310 transitions. [2021-11-16 20:18:34,966 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2021-11-16 20:18:34,966 INFO L506 BasicCegarLoop]: Found error trace [2021-11-16 20:18:34,966 INFO L514 BasicCegarLoop]: trace histogram [11, 11, 11, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-16 20:18:34,966 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2021-11-16 20:18:34,967 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-16 20:18:34,967 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-16 20:18:34,967 INFO L85 PathProgramCache]: Analyzing trace with hash -169557656, now seen corresponding path program 2 times [2021-11-16 20:18:34,967 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-16 20:18:34,967 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1566039277] [2021-11-16 20:18:34,967 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-16 20:18:34,967 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-16 20:18:35,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-16 20:18:35,159 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-16 20:18:35,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-16 20:18:35,163 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2021-11-16 20:18:35,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-16 20:18:35,170 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-11-16 20:18:35,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-16 20:18:35,174 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-16 20:18:35,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-16 20:18:35,178 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-11-16 20:18:35,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-16 20:18:35,182 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2021-11-16 20:18:35,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-16 20:18:35,185 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2021-11-16 20:18:35,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-16 20:18:35,191 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2021-11-16 20:18:35,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-16 20:18:35,195 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-16 20:18:35,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-16 20:18:35,198 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2021-11-16 20:18:35,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-16 20:18:35,203 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2021-11-16 20:18:35,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-16 20:18:35,211 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2021-11-16 20:18:35,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-16 20:18:35,216 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2021-11-16 20:18:35,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-16 20:18:35,221 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-16 20:18:35,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-16 20:18:35,225 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2021-11-16 20:18:35,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-16 20:18:35,229 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2021-11-16 20:18:35,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-16 20:18:35,232 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2021-11-16 20:18:35,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-16 20:18:35,236 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2021-11-16 20:18:35,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-16 20:18:35,240 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-16 20:18:35,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-16 20:18:35,243 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-16 20:18:35,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-16 20:18:35,247 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2021-11-16 20:18:35,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-16 20:18:35,280 INFO L134 CoverageAnalysis]: Checked inductivity of 266 backedges. 22 proven. 0 refuted. 0 times theorem prover too weak. 244 trivial. 0 not checked. [2021-11-16 20:18:35,281 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-16 20:18:35,281 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1566039277] [2021-11-16 20:18:35,281 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1566039277] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-16 20:18:35,281 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-16 20:18:35,281 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-11-16 20:18:35,281 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1458092869] [2021-11-16 20:18:35,281 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-16 20:18:35,282 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-16 20:18:35,282 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-16 20:18:35,282 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-16 20:18:35,282 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-11-16 20:18:35,282 INFO L87 Difference]: Start difference. First operand 243 states and 310 transitions. Second operand has 7 states, 7 states have (on average 10.857142857142858) internal successors, (76), 5 states have internal predecessors, (76), 2 states have call successors, (21), 4 states have call predecessors, (21), 2 states have return successors, (20), 2 states have call predecessors, (20), 1 states have call successors, (20) [2021-11-16 20:18:36,060 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-16 20:18:36,061 INFO L93 Difference]: Finished difference Result 344 states and 433 transitions. [2021-11-16 20:18:36,061 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-11-16 20:18:36,061 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.857142857142858) internal successors, (76), 5 states have internal predecessors, (76), 2 states have call successors, (21), 4 states have call predecessors, (21), 2 states have return successors, (20), 2 states have call predecessors, (20), 1 states have call successors, (20) Word has length 162 [2021-11-16 20:18:36,061 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-16 20:18:36,062 INFO L225 Difference]: With dead ends: 344 [2021-11-16 20:18:36,062 INFO L226 Difference]: Without dead ends: 236 [2021-11-16 20:18:36,063 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2021-11-16 20:18:36,063 INFO L933 BasicCegarLoop]: 165 mSDtfsCounter, 157 mSDsluCounter, 262 mSDsCounter, 0 mSdLazyCounter, 286 mSolverCounterSat, 84 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 158 SdHoareTripleChecker+Valid, 427 SdHoareTripleChecker+Invalid, 370 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 84 IncrementalHoareTripleChecker+Valid, 286 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2021-11-16 20:18:36,063 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [158 Valid, 427 Invalid, 370 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [84 Valid, 286 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2021-11-16 20:18:36,064 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 236 states. [2021-11-16 20:18:36,071 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 236 to 236. [2021-11-16 20:18:36,072 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 236 states, 166 states have (on average 1.1325301204819278) internal successors, (188), 172 states have internal predecessors, (188), 47 states have call successors, (47), 17 states have call predecessors, (47), 22 states have return successors, (63), 46 states have call predecessors, (63), 46 states have call successors, (63) [2021-11-16 20:18:36,072 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 236 states to 236 states and 298 transitions. [2021-11-16 20:18:36,073 INFO L78 Accepts]: Start accepts. Automaton has 236 states and 298 transitions. Word has length 162 [2021-11-16 20:18:36,073 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-16 20:18:36,073 INFO L470 AbstractCegarLoop]: Abstraction has 236 states and 298 transitions. [2021-11-16 20:18:36,073 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.857142857142858) internal successors, (76), 5 states have internal predecessors, (76), 2 states have call successors, (21), 4 states have call predecessors, (21), 2 states have return successors, (20), 2 states have call predecessors, (20), 1 states have call successors, (20) [2021-11-16 20:18:36,073 INFO L276 IsEmpty]: Start isEmpty. Operand 236 states and 298 transitions. [2021-11-16 20:18:36,074 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2021-11-16 20:18:36,074 INFO L506 BasicCegarLoop]: Found error trace [2021-11-16 20:18:36,074 INFO L514 BasicCegarLoop]: trace histogram [11, 11, 11, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-16 20:18:36,075 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2021-11-16 20:18:36,075 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-16 20:18:36,075 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-16 20:18:36,075 INFO L85 PathProgramCache]: Analyzing trace with hash -1998554157, now seen corresponding path program 1 times [2021-11-16 20:18:36,075 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-16 20:18:36,075 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1880189501] [2021-11-16 20:18:36,075 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-16 20:18:36,076 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-16 20:18:36,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-16 20:18:36,186 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-16 20:18:36,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-16 20:18:36,190 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2021-11-16 20:18:36,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-16 20:18:36,197 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-11-16 20:18:36,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-16 20:18:36,202 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-16 20:18:36,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-16 20:18:36,205 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-11-16 20:18:36,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-16 20:18:36,210 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2021-11-16 20:18:36,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-16 20:18:36,214 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2021-11-16 20:18:36,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-16 20:18:36,216 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2021-11-16 20:18:36,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-16 20:18:36,220 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-16 20:18:36,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-16 20:18:36,223 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2021-11-16 20:18:36,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-16 20:18:36,227 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2021-11-16 20:18:36,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-16 20:18:36,241 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2021-11-16 20:18:36,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-16 20:18:36,245 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2021-11-16 20:18:36,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-16 20:18:36,250 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-16 20:18:36,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-16 20:18:36,254 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2021-11-16 20:18:36,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-16 20:18:36,322 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2021-11-16 20:18:36,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-16 20:18:36,327 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2021-11-16 20:18:36,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-16 20:18:36,331 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2021-11-16 20:18:36,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-16 20:18:36,364 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-16 20:18:36,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-16 20:18:36,370 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-16 20:18:36,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-16 20:18:36,374 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2021-11-16 20:18:36,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-16 20:18:36,380 INFO L134 CoverageAnalysis]: Checked inductivity of 266 backedges. 10 proven. 10 refuted. 0 times theorem prover too weak. 246 trivial. 0 not checked. [2021-11-16 20:18:36,380 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-16 20:18:36,380 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1880189501] [2021-11-16 20:18:36,380 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1880189501] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-16 20:18:36,381 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [220192828] [2021-11-16 20:18:36,381 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-16 20:18:36,381 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-16 20:18:36,381 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-16 20:18:36,382 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-16 20:18:36,383 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2021-11-16 20:18:36,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-16 20:18:36,727 INFO L263 TraceCheckSpWp]: Trace formula consists of 2759 conjuncts, 52 conjunts are in the unsatisfiable core [2021-11-16 20:18:36,730 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-16 20:18:37,750 WARN L860 $PredicateComparison]: unable to prove that (exists ((|save_byte_from_array_nondet_size_t_#res#1| Int)) (= |c_#memory_int| (store |c_old(#memory_int)| |c_save_byte_from_array_~storage#1.base| (store (select |c_old(#memory_int)| |c_save_byte_from_array_~storage#1.base|) |c_save_byte_from_array_~storage#1.offset| |save_byte_from_array_nondet_size_t_#res#1|)))) is different from true [2021-11-16 20:18:37,753 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-11-16 20:18:39,811 WARN L860 $PredicateComparison]: unable to prove that (or (exists ((|save_byte_from_array_~array#1.offset| Int) (|aux_div_save_byte_from_array_nondet_size_t_#res#1_70| Int) (|save_byte_from_array_~storage#1.base| Int) (|aux_mod_save_byte_from_array_nondet_size_t_#res#1_70| Int) (|save_byte_from_array_~array#1.base| Int) (|save_byte_from_array_~storage#1.offset| Int)) (and (<= |aux_mod_save_byte_from_array_nondet_size_t_#res#1_70| 9223372036854775807) (= |c_#memory_int| (store |c_old(#memory_int)| |save_byte_from_array_~storage#1.base| (let ((.cse0 (store (select |c_old(#memory_int)| |save_byte_from_array_~storage#1.base|) |save_byte_from_array_~storage#1.offset| (+ |aux_mod_save_byte_from_array_nondet_size_t_#res#1_70| (* |aux_div_save_byte_from_array_nondet_size_t_#res#1_70| 18446744073709551616))))) (store .cse0 (+ |save_byte_from_array_~storage#1.offset| 8) (select (select (store |c_old(#memory_int)| |save_byte_from_array_~storage#1.base| .cse0) |save_byte_from_array_~array#1.base|) (+ |save_byte_from_array_~array#1.offset| (mod |aux_mod_save_byte_from_array_nondet_size_t_#res#1_70| 18446744073709551616))))))) (<= 0 |aux_mod_save_byte_from_array_nondet_size_t_#res#1_70|))) (exists ((|save_byte_from_array_~array#1.offset| Int) (|aux_div_save_byte_from_array_nondet_size_t_#res#1_70| Int) (|save_byte_from_array_~storage#1.base| Int) (|aux_mod_save_byte_from_array_nondet_size_t_#res#1_70| Int) (|save_byte_from_array_~array#1.base| Int) (|save_byte_from_array_~storage#1.offset| Int)) (and (= |c_#memory_int| (store |c_old(#memory_int)| |save_byte_from_array_~storage#1.base| (let ((.cse1 (store (select |c_old(#memory_int)| |save_byte_from_array_~storage#1.base|) |save_byte_from_array_~storage#1.offset| (+ |aux_mod_save_byte_from_array_nondet_size_t_#res#1_70| (* |aux_div_save_byte_from_array_nondet_size_t_#res#1_70| 18446744073709551616))))) (store .cse1 (+ |save_byte_from_array_~storage#1.offset| 8) (select (select (store |c_old(#memory_int)| |save_byte_from_array_~storage#1.base| .cse1) |save_byte_from_array_~array#1.base|) (+ (- 18446744073709551616) |save_byte_from_array_~array#1.offset| (mod |aux_mod_save_byte_from_array_nondet_size_t_#res#1_70| 18446744073709551616))))))) (< 9223372036854775807 |aux_mod_save_byte_from_array_nondet_size_t_#res#1_70|) (< |aux_mod_save_byte_from_array_nondet_size_t_#res#1_70| 18446744073709551616)))) is different from true [2021-11-16 20:18:40,520 INFO L354 Elim1Store]: treesize reduction 881, result has 34.8 percent of original size [2021-11-16 20:18:40,521 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 4 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 7 new quantified variables, introduced 19 case distinctions, treesize of input 194 treesize of output 606 [2021-11-16 20:21:40,422 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-16 20:21:40,542 INFO L354 Elim1Store]: treesize reduction 74, result has 61.3 percent of original size [2021-11-16 20:21:40,542 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 1 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 9 case distinctions, treesize of input 174 treesize of output 249 [2021-11-16 20:21:40,751 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-16 20:21:40,752 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 25 treesize of output 15 [2021-11-16 20:21:40,781 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-16 20:21:40,789 INFO L354 Elim1Store]: treesize reduction 42, result has 2.3 percent of original size [2021-11-16 20:21:40,790 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 46 treesize of output 24 [2021-11-16 20:21:40,866 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-16 20:21:41,002 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-16 20:21:41,047 INFO L354 Elim1Store]: treesize reduction 75, result has 38.5 percent of original size [2021-11-16 20:21:41,047 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 5 case distinctions, treesize of input 70 treesize of output 79 [2021-11-16 20:21:41,187 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-16 20:21:41,209 INFO L354 Elim1Store]: treesize reduction 28, result has 42.9 percent of original size [2021-11-16 20:21:41,210 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 49 treesize of output 45 [2021-11-16 20:21:41,277 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-16 20:21:41,421 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-16 20:21:41,422 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 25 treesize of output 15 [2021-11-16 20:21:41,474 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-16 20:21:41,483 INFO L354 Elim1Store]: treesize reduction 42, result has 2.3 percent of original size [2021-11-16 20:21:41,484 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 46 treesize of output 24 [2021-11-16 20:21:41,589 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-16 20:21:41,917 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-16 20:21:41,918 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 25 treesize of output 15 [2021-11-16 20:21:41,978 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-16 20:21:41,991 INFO L354 Elim1Store]: treesize reduction 42, result has 2.3 percent of original size [2021-11-16 20:21:41,992 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 46 treesize of output 24 [2021-11-16 20:21:42,145 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-16 20:21:42,406 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-16 20:21:42,455 INFO L354 Elim1Store]: treesize reduction 75, result has 38.5 percent of original size [2021-11-16 20:21:42,455 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 5 case distinctions, treesize of input 70 treesize of output 79 [2021-11-16 20:21:42,743 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-16 20:21:42,771 INFO L354 Elim1Store]: treesize reduction 28, result has 42.9 percent of original size [2021-11-16 20:21:42,771 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 49 treesize of output 45 [2021-11-16 20:21:42,925 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-16 20:21:43,233 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-16 20:21:43,234 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 25 treesize of output 15 [2021-11-16 20:21:43,336 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-16 20:21:43,354 INFO L354 Elim1Store]: treesize reduction 42, result has 2.3 percent of original size [2021-11-16 20:21:43,377 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 46 treesize of output 24 [2021-11-16 20:21:43,462 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-16 20:21:43,685 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-16 20:21:43,695 INFO L354 Elim1Store]: treesize reduction 26, result has 3.7 percent of original size [2021-11-16 20:21:43,695 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 40 treesize of output 26 [2021-11-16 20:21:43,800 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-16 20:21:43,831 INFO L354 Elim1Store]: treesize reduction 88, result has 1.1 percent of original size [2021-11-16 20:21:43,832 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 5 case distinctions, treesize of input 61 treesize of output 35 [2021-11-16 20:21:43,915 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-16 20:21:43,985 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-16 20:21:44,046 INFO L354 Elim1Store]: treesize reduction 144, result has 24.6 percent of original size [2021-11-16 20:21:44,047 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 1 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 9 case distinctions, treesize of input 85 treesize of output 90 [2021-11-16 20:21:44,203 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-16 20:21:44,238 INFO L354 Elim1Store]: treesize reduction 74, result has 24.5 percent of original size [2021-11-16 20:21:44,239 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 5 case distinctions, treesize of input 64 treesize of output 59 [2021-11-16 20:21:44,457 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-16 20:21:44,471 INFO L354 Elim1Store]: treesize reduction 26, result has 3.7 percent of original size [2021-11-16 20:21:44,471 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 40 treesize of output 26 [2021-11-16 20:21:44,661 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-16 20:21:44,686 INFO L354 Elim1Store]: treesize reduction 88, result has 1.1 percent of original size [2021-11-16 20:21:44,687 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 5 case distinctions, treesize of input 61 treesize of output 35 [2021-11-16 20:21:46,912 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-16 20:21:46,913 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 25 treesize of output 15 [2021-11-16 20:21:47,029 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-16 20:21:47,036 INFO L354 Elim1Store]: treesize reduction 42, result has 2.3 percent of original size [2021-11-16 20:21:47,036 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 46 treesize of output 24 [2021-11-16 20:21:47,102 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-16 20:21:47,208 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-16 20:21:47,248 INFO L354 Elim1Store]: treesize reduction 75, result has 38.5 percent of original size [2021-11-16 20:21:47,249 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 5 case distinctions, treesize of input 70 treesize of output 79 [2021-11-16 20:21:47,364 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-16 20:21:47,384 INFO L354 Elim1Store]: treesize reduction 28, result has 42.9 percent of original size [2021-11-16 20:21:47,384 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 49 treesize of output 45 [2021-11-16 20:21:47,471 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-16 20:21:47,603 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-16 20:21:47,604 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 25 treesize of output 15 [2021-11-16 20:21:47,646 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-16 20:21:47,657 INFO L354 Elim1Store]: treesize reduction 42, result has 2.3 percent of original size [2021-11-16 20:21:47,658 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 46 treesize of output 24 [2021-11-16 20:21:47,786 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-16 20:21:48,266 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-16 20:21:48,338 INFO L354 Elim1Store]: treesize reduction 31, result has 74.6 percent of original size [2021-11-16 20:21:48,338 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 5 case distinctions, treesize of input 142 treesize of output 195 [2021-11-16 20:21:49,122 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-16 20:21:49,123 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 25 treesize of output 15 [2021-11-16 20:21:49,199 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-16 20:21:49,212 INFO L354 Elim1Store]: treesize reduction 42, result has 2.3 percent of original size [2021-11-16 20:21:49,213 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 46 treesize of output 24 [2021-11-16 20:21:49,408 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-16 20:21:49,718 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-16 20:21:49,768 INFO L354 Elim1Store]: treesize reduction 75, result has 38.5 percent of original size [2021-11-16 20:21:49,769 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 5 case distinctions, treesize of input 70 treesize of output 79 [2021-11-16 20:21:50,088 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-16 20:21:50,107 INFO L354 Elim1Store]: treesize reduction 28, result has 42.9 percent of original size [2021-11-16 20:21:50,107 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 49 treesize of output 45 [2021-11-16 20:21:50,158 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-16 20:21:50,270 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-16 20:21:50,270 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 25 treesize of output 15 [2021-11-16 20:21:50,302 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-16 20:21:50,309 INFO L354 Elim1Store]: treesize reduction 42, result has 2.3 percent of original size [2021-11-16 20:21:50,310 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 46 treesize of output 24 [2021-11-16 20:21:50,389 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-16 20:21:50,666 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-16 20:21:50,735 INFO L354 Elim1Store]: treesize reduction 31, result has 74.6 percent of original size [2021-11-16 20:21:50,736 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 5 case distinctions, treesize of input 142 treesize of output 195 [2021-11-16 20:21:51,493 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-16 20:21:51,857 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-16 20:21:52,098 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-16 20:21:52,591 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-16 20:21:52,648 INFO L354 Elim1Store]: treesize reduction 52, result has 41.6 percent of original size [2021-11-16 20:21:52,649 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 5 case distinctions, treesize of input 140 treesize of output 134 [2021-11-16 20:21:52,975 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-16 20:21:53,000 INFO L354 Elim1Store]: treesize reduction 41, result has 34.9 percent of original size [2021-11-16 20:21:53,000 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 2 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 123 treesize of output 107 [2021-11-16 20:21:53,167 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-16 20:21:53,172 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-16 20:21:53,199 INFO L354 Elim1Store]: treesize reduction 53, result has 29.3 percent of original size [2021-11-16 20:21:53,200 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 5 case distinctions, treesize of input 123 treesize of output 107 [2021-11-16 20:21:53,978 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-16 20:21:54,003 INFO L354 Elim1Store]: treesize reduction 13, result has 51.9 percent of original size [2021-11-16 20:21:54,004 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 119 treesize of output 103 [2021-11-16 20:21:54,246 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-16 20:21:54,249 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 102 treesize of output 76 [2021-11-16 20:21:54,490 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-16 20:21:54,493 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-16 20:21:54,505 INFO L354 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2021-11-16 20:21:54,505 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 2 case distinctions, treesize of input 102 treesize of output 76 [2021-11-16 20:21:55,947 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-16 20:21:56,070 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-16 20:21:56,166 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-16 20:21:56,368 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-16 20:21:56,421 INFO L354 Elim1Store]: treesize reduction 52, result has 41.6 percent of original size [2021-11-16 20:21:56,422 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 5 case distinctions, treesize of input 140 treesize of output 134 [2021-11-16 20:21:56,713 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-16 20:21:56,742 INFO L354 Elim1Store]: treesize reduction 41, result has 34.9 percent of original size [2021-11-16 20:21:56,742 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 2 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 123 treesize of output 107 [2021-11-16 20:21:57,391 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-16 20:21:57,437 INFO L354 Elim1Store]: treesize reduction 40, result has 48.1 percent of original size [2021-11-16 20:21:57,438 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 2 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 5 case distinctions, treesize of input 123 treesize of output 121 [2021-11-16 20:21:58,680 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-16 20:21:58,702 INFO L354 Elim1Store]: treesize reduction 13, result has 51.9 percent of original size [2021-11-16 20:21:58,702 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 119 treesize of output 103 [2021-11-16 20:21:58,893 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-16 20:21:58,894 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 102 treesize of output 76 [2021-11-16 20:21:59,052 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-16 20:21:59,069 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-16 20:21:59,069 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 102 treesize of output 90 [2021-11-16 20:22:01,039 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-16 20:22:01,246 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-16 20:22:01,588 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-16 20:22:02,001 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-16 20:22:02,061 INFO L354 Elim1Store]: treesize reduction 12, result has 84.0 percent of original size [2021-11-16 20:22:02,061 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 2 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 4 case distinctions, treesize of input 126 treesize of output 147 [2021-11-16 20:22:03,679 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-16 20:22:03,733 INFO L354 Elim1Store]: treesize reduction 12, result has 84.0 percent of original size [2021-11-16 20:22:03,733 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 2 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 5 case distinctions, treesize of input 126 treesize of output 147 [2021-11-16 20:22:04,071 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-16 20:22:04,135 INFO L354 Elim1Store]: treesize reduction 35, result has 64.3 percent of original size [2021-11-16 20:22:04,135 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 5 case distinctions, treesize of input 143 treesize of output 160 [2021-11-16 20:22:05,091 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-16 20:22:05,181 INFO L354 Elim1Store]: treesize reduction 83, result has 50.6 percent of original size [2021-11-16 20:22:05,182 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 2 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 9 case distinctions, treesize of input 147 treesize of output 178 [2021-11-16 20:22:06,244 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-16 20:22:06,336 INFO L354 Elim1Store]: treesize reduction 83, result has 50.6 percent of original size [2021-11-16 20:22:06,337 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 2 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 8 case distinctions, treesize of input 147 treesize of output 178 [2021-11-16 20:22:07,708 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-16 20:22:07,816 INFO L354 Elim1Store]: treesize reduction 106, result has 44.5 percent of original size [2021-11-16 20:22:07,817 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 1 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 9 case distinctions, treesize of input 164 treesize of output 191 [2021-11-16 20:22:14,203 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-16 20:22:14,304 INFO L354 Elim1Store]: treesize reduction 86, result has 55.0 percent of original size [2021-11-16 20:22:14,305 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 1 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 9 case distinctions, treesize of input 257 treesize of output 304 [2021-11-16 20:22:26,399 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-16 20:22:26,400 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 25 treesize of output 15 [2021-11-16 20:22:26,483 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-16 20:22:26,498 INFO L354 Elim1Store]: treesize reduction 42, result has 2.3 percent of original size [2021-11-16 20:22:26,498 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 46 treesize of output 24 [2021-11-16 20:22:26,708 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-16 20:22:27,045 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-16 20:22:27,096 INFO L354 Elim1Store]: treesize reduction 75, result has 38.5 percent of original size [2021-11-16 20:22:27,097 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 5 case distinctions, treesize of input 70 treesize of output 79 [2021-11-16 20:22:27,488 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-16 20:22:27,520 INFO L354 Elim1Store]: treesize reduction 28, result has 42.9 percent of original size [2021-11-16 20:22:27,521 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 49 treesize of output 45 [2021-11-16 20:22:27,735 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-16 20:22:28,167 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-16 20:22:28,168 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 25 treesize of output 15 [2021-11-16 20:22:28,320 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-16 20:22:28,329 INFO L354 Elim1Store]: treesize reduction 42, result has 2.3 percent of original size [2021-11-16 20:22:28,329 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 46 treesize of output 24 [2021-11-16 20:22:28,425 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-16 20:22:28,776 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-16 20:22:28,847 INFO L354 Elim1Store]: treesize reduction 31, result has 74.6 percent of original size [2021-11-16 20:22:28,847 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 5 case distinctions, treesize of input 142 treesize of output 195 [2021-11-16 20:22:29,652 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-16 20:22:29,653 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 25 treesize of output 15 [2021-11-16 20:22:29,750 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-16 20:22:29,766 INFO L354 Elim1Store]: treesize reduction 42, result has 2.3 percent of original size [2021-11-16 20:22:29,767 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 46 treesize of output 24 [2021-11-16 20:22:30,014 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-16 20:22:30,412 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-16 20:22:30,462 INFO L354 Elim1Store]: treesize reduction 75, result has 38.5 percent of original size [2021-11-16 20:22:30,462 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 5 case distinctions, treesize of input 70 treesize of output 79 [2021-11-16 20:22:30,915 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-16 20:22:30,947 INFO L354 Elim1Store]: treesize reduction 28, result has 42.9 percent of original size [2021-11-16 20:22:30,948 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 49 treesize of output 45 [2021-11-16 20:22:31,183 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-16 20:22:31,383 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-16 20:22:31,384 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 25 treesize of output 15 [2021-11-16 20:22:31,432 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-16 20:22:31,443 INFO L354 Elim1Store]: treesize reduction 42, result has 2.3 percent of original size [2021-11-16 20:22:31,443 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 46 treesize of output 24 [2021-11-16 20:22:31,578 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-16 20:22:32,023 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-16 20:22:32,094 INFO L354 Elim1Store]: treesize reduction 31, result has 74.6 percent of original size [2021-11-16 20:22:32,095 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 5 case distinctions, treesize of input 142 treesize of output 195 [2021-11-16 20:22:33,054 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-16 20:22:33,535 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-16 20:22:33,852 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-16 20:22:34,110 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-16 20:22:34,157 INFO L354 Elim1Store]: treesize reduction 52, result has 41.6 percent of original size [2021-11-16 20:22:34,158 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 5 case distinctions, treesize of input 140 treesize of output 134 [2021-11-16 20:22:34,437 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-16 20:22:34,466 INFO L354 Elim1Store]: treesize reduction 41, result has 34.9 percent of original size [2021-11-16 20:22:34,466 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 2 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 123 treesize of output 107 [2021-11-16 20:22:35,069 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-16 20:22:35,074 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-16 20:22:35,107 INFO L354 Elim1Store]: treesize reduction 53, result has 29.3 percent of original size [2021-11-16 20:22:35,108 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 5 case distinctions, treesize of input 123 treesize of output 107 [2021-11-16 20:22:36,446 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-16 20:22:36,476 INFO L354 Elim1Store]: treesize reduction 13, result has 51.9 percent of original size [2021-11-16 20:22:36,476 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 119 treesize of output 103 [2021-11-16 20:22:36,658 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-16 20:22:36,659 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 102 treesize of output 76 [2021-11-16 20:22:36,774 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-16 20:22:36,776 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-16 20:22:36,783 INFO L354 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2021-11-16 20:22:36,783 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 2 case distinctions, treesize of input 102 treesize of output 76 [2021-11-16 20:22:37,654 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-16 20:22:37,963 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-16 20:22:38,223 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-16 20:22:38,731 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-16 20:22:38,775 INFO L354 Elim1Store]: treesize reduction 52, result has 41.6 percent of original size [2021-11-16 20:22:38,775 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 5 case distinctions, treesize of input 140 treesize of output 134 [2021-11-16 20:22:38,978 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-16 20:22:39,002 INFO L354 Elim1Store]: treesize reduction 41, result has 34.9 percent of original size [2021-11-16 20:22:39,002 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 2 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 123 treesize of output 107 [2021-11-16 20:22:39,171 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-16 20:22:39,215 INFO L354 Elim1Store]: treesize reduction 40, result has 48.1 percent of original size [2021-11-16 20:22:39,215 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 2 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 5 case distinctions, treesize of input 123 treesize of output 121 [2021-11-16 20:22:41,008 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-16 20:22:41,030 INFO L354 Elim1Store]: treesize reduction 13, result has 51.9 percent of original size [2021-11-16 20:22:41,030 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 119 treesize of output 103 [2021-11-16 20:22:41,160 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-16 20:22:41,161 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 102 treesize of output 76 [2021-11-16 20:22:41,416 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-16 20:22:41,430 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-16 20:22:41,431 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 102 treesize of output 90 [2021-11-16 20:22:43,534 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-16 20:22:43,724 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-16 20:22:44,051 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-16 20:22:44,476 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-16 20:22:44,542 INFO L354 Elim1Store]: treesize reduction 12, result has 84.0 percent of original size [2021-11-16 20:22:44,543 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 2 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 4 case distinctions, treesize of input 126 treesize of output 147 [2021-11-16 20:22:46,284 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-16 20:22:46,342 INFO L354 Elim1Store]: treesize reduction 12, result has 84.0 percent of original size [2021-11-16 20:22:46,342 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 2 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 5 case distinctions, treesize of input 126 treesize of output 147 [2021-11-16 20:22:47,750 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-16 20:22:47,818 INFO L354 Elim1Store]: treesize reduction 35, result has 64.3 percent of original size [2021-11-16 20:22:47,818 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 5 case distinctions, treesize of input 143 treesize of output 160 [2021-11-16 20:22:49,338 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-16 20:22:49,421 INFO L354 Elim1Store]: treesize reduction 83, result has 50.6 percent of original size [2021-11-16 20:22:49,421 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 2 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 9 case distinctions, treesize of input 147 treesize of output 178 [2021-11-16 20:22:51,432 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-16 20:22:51,528 INFO L354 Elim1Store]: treesize reduction 83, result has 50.6 percent of original size [2021-11-16 20:22:51,529 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 2 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 8 case distinctions, treesize of input 147 treesize of output 178 [2021-11-16 20:22:52,830 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-16 20:22:52,940 INFO L354 Elim1Store]: treesize reduction 106, result has 44.5 percent of original size [2021-11-16 20:22:52,940 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 1 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 9 case distinctions, treesize of input 164 treesize of output 191 [2021-11-16 20:23:01,572 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-16 20:23:01,687 INFO L354 Elim1Store]: treesize reduction 86, result has 55.0 percent of original size [2021-11-16 20:23:01,688 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 1 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 9 case distinctions, treesize of input 257 treesize of output 304 [2021-11-16 20:29:11,174 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-16 20:29:11,176 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-16 20:29:11,184 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-16 20:29:11,185 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 2 disjoint index pairs (out of 6 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 741 treesize of output 532 [2021-11-16 20:29:11,306 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-16 20:29:11,307 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-16 20:29:11,308 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 153 treesize of output 104 [2021-11-16 20:29:11,382 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-16 20:29:11,385 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-16 20:29:11,392 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-16 20:29:11,392 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 2 disjoint index pairs (out of 6 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 163 treesize of output 139 [2021-11-16 20:29:11,470 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-16 20:29:11,473 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-16 20:29:11,482 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-16 20:29:11,483 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 475 treesize of output 407 [2021-11-16 20:29:11,810 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-16 20:29:11,811 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-16 20:29:11,811 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-16 20:29:11,812 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 100 treesize of output 66 [2021-11-16 20:29:11,902 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-16 20:29:11,903 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-16 20:29:11,904 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-16 20:29:11,904 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 90 treesize of output 56 [2021-11-16 20:29:11,993 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-16 20:29:11,994 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-16 20:29:11,994 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-16 20:29:11,995 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 80 treesize of output 46 [2021-11-16 20:29:12,084 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-16 20:29:12,085 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-16 20:29:12,086 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-16 20:29:12,089 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-16 20:29:12,103 INFO L354 Elim1Store]: treesize reduction 25, result has 49.0 percent of original size [2021-11-16 20:29:12,103 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 124 treesize of output 99 [2021-11-16 20:29:12,156 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-16 20:29:12,156 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-16 20:29:12,157 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-16 20:29:12,158 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-16 20:29:12,163 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 114 treesize of output 65 [2021-11-16 20:29:12,311 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-16 20:29:12,311 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-16 20:29:12,312 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-16 20:29:12,316 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-16 20:29:12,331 INFO L354 Elim1Store]: treesize reduction 25, result has 49.0 percent of original size [2021-11-16 20:29:12,332 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 484 treesize of output 357 [2021-11-16 20:29:12,720 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-16 20:29:12,724 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-16 20:29:12,771 INFO L354 Elim1Store]: treesize reduction 24, result has 68.8 percent of original size [2021-11-16 20:29:12,771 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 2 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 5 case distinctions, treesize of input 740 treesize of output 647 [2021-11-16 20:29:14,129 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-16 20:29:14,144 INFO L354 Elim1Store]: treesize reduction 46, result has 6.1 percent of original size [2021-11-16 20:29:14,145 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 756 treesize of output 519 [2021-11-16 20:29:14,255 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-16 20:29:14,287 INFO L354 Elim1Store]: treesize reduction 6, result has 88.2 percent of original size [2021-11-16 20:29:14,287 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 490 treesize of output 435 [2021-11-16 20:29:14,688 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-16 20:29:14,703 INFO L354 Elim1Store]: treesize reduction 46, result has 6.1 percent of original size [2021-11-16 20:29:14,703 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 178 treesize of output 126 [2021-11-16 20:29:14,854 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-16 20:29:14,855 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-16 20:29:14,856 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 168 treesize of output 113 [2021-11-16 20:29:15,414 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-16 20:29:15,415 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-16 20:29:15,415 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-16 20:29:15,416 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-16 20:29:15,417 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 129 treesize of output 65 [2021-11-16 20:29:15,468 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-16 20:29:15,469 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-16 20:29:15,469 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-16 20:29:15,481 INFO L354 Elim1Store]: treesize reduction 73, result has 1.4 percent of original size [2021-11-16 20:29:15,482 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 139 treesize of output 84 [2021-11-16 20:29:15,568 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-16 20:29:15,569 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-16 20:29:15,570 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-16 20:29:15,571 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-16 20:29:15,571 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 115 treesize of output 66 [2021-11-16 20:29:15,756 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-16 20:29:15,756 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-16 20:29:15,757 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-16 20:29:15,779 INFO L354 Elim1Store]: treesize reduction 50, result has 32.4 percent of original size [2021-11-16 20:29:15,779 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 499 treesize of output 366 [2021-11-16 20:29:16,060 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-16 20:29:16,060 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-16 20:29:16,061 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-16 20:29:16,062 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 475 treesize of output 333 [2021-11-16 20:29:16,262 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-16 20:29:16,263 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-16 20:29:16,263 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-16 20:29:16,264 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 105 treesize of output 65 [2021-11-16 20:29:16,328 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-16 20:29:16,329 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-16 20:29:16,330 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-16 20:29:16,333 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 115 treesize of output 75 [2021-11-16 20:29:16,529 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-16 20:29:16,529 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-16 20:29:16,530 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-16 20:29:16,531 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 475 treesize of output 333 [2021-11-16 20:29:16,721 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-16 20:29:16,722 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-16 20:29:16,726 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-16 20:29:16,727 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 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 91 treesize of output 57 [2021-11-16 20:29:16,834 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-16 20:29:16,835 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-16 20:29:16,836 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-16 20:29:16,837 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 115 treesize of output 75 [2021-11-16 20:29:17,144 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-16 20:29:17,215 INFO L354 Elim1Store]: treesize reduction 29, result has 71.6 percent of original size [2021-11-16 20:29:17,215 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 5 case distinctions, treesize of input 755 treesize of output 676 [2021-11-16 20:29:22,849 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-16 20:29:22,851 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 2 disjoint index pairs (out of 6 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 741 treesize of output 507 [2021-11-16 20:29:22,988 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-16 20:29:22,989 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 2 disjoint index pairs (out of 6 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 163 treesize of output 114 [2021-11-16 20:29:23,072 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-16 20:29:23,073 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 475 treesize of output 382 [2021-11-16 20:29:23,359 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-16 20:29:23,360 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-16 20:29:23,361 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-16 20:29:23,361 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 124 treesize of output 75 [2021-11-16 20:29:23,479 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-16 20:29:23,480 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-16 20:29:23,481 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-16 20:29:23,481 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 484 treesize of output 333 [2021-11-16 20:29:23,704 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-16 20:29:23,735 INFO L354 Elim1Store]: treesize reduction 23, result has 55.8 percent of original size [2021-11-16 20:29:23,735 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 2 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 740 treesize of output 623 [2021-11-16 20:29:27,809 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-16 20:29:27,825 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-16 20:29:27,825 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 605 treesize of output 541 [2021-11-16 20:29:28,270 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-16 20:29:28,272 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 380 treesize of output 318 [2021-11-16 20:29:28,411 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-16 20:29:28,412 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 45 treesize of output 27 [2021-11-16 20:29:28,467 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-16 20:29:28,467 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 528 treesize of output 436 [2021-11-16 20:29:28,670 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-16 20:29:28,670 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 380 treesize of output 318 [2021-11-16 20:29:28,743 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-16 20:29:28,744 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 528 treesize of output 436 [2021-11-16 20:29:28,860 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-16 20:29:28,860 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 100 treesize of output 70 [2021-11-16 20:29:29,003 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-16 20:29:29,128 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-16 20:29:29,129 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 4525 treesize of output 3709 [2021-11-16 20:29:31,806 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-16 20:29:31,935 INFO L354 Elim1Store]: treesize reduction 23, result has 76.5 percent of original size [2021-11-16 20:29:31,935 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 5 case distinctions, treesize of input 4570 treesize of output 3787 [2021-11-16 20:30:45,072 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-16 20:30:45,104 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-16 20:30:45,105 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 528 treesize of output 481 [2021-11-16 20:30:46,173 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-16 20:30:46,184 INFO L354 Elim1Store]: treesize reduction 46, result has 2.1 percent of original size [2021-11-16 20:30:46,185 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 704 treesize of output 478 [2021-11-16 20:30:46,560 INFO L354 Elim1Store]: treesize reduction 45, result has 58.3 percent of original size [2021-11-16 20:30:46,560 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 631 treesize of output 568 [2021-11-16 20:31:10,300 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-16 20:31:10,339 INFO L354 Elim1Store]: treesize reduction 23, result has 51.1 percent of original size [2021-11-16 20:31:10,339 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 951 treesize of output 681 Killed by 15