./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/aws-c-common/aws_hash_table_put_harness.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version c36dfa3b 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_hash_table_put_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 7e3410638a547f2efce35a13c7d23c64ee660b1c493ec273ce9d4043edc218c3 --- Real Ultimate output --- This is Ultimate 0.2.1-wip.dd.seqcomp-c36dfa3 [2021-11-03 23:13:42,729 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-03 23:13:42,757 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-03 23:13:42,793 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-03 23:13:42,794 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-03 23:13:42,795 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-03 23:13:42,796 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-03 23:13:42,797 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-03 23:13:42,799 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-03 23:13:42,800 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-03 23:13:42,801 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-03 23:13:42,802 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-03 23:13:42,802 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-03 23:13:42,803 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-03 23:13:42,804 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-03 23:13:42,805 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-03 23:13:42,806 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-03 23:13:42,807 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-03 23:13:42,809 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-03 23:13:42,810 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-03 23:13:42,812 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-03 23:13:42,813 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-03 23:13:42,814 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-03 23:13:42,815 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-03 23:13:42,817 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-03 23:13:42,817 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-03 23:13:42,818 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-03 23:13:42,818 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-03 23:13:42,819 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-03 23:13:42,820 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-03 23:13:42,820 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-03 23:13:42,821 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-03 23:13:42,821 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-03 23:13:42,822 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-03 23:13:42,823 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-03 23:13:42,823 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-03 23:13:42,824 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-03 23:13:42,824 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-03 23:13:42,824 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-03 23:13:42,825 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-03 23:13:42,826 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-03 23:13:42,827 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-11-03 23:13:42,844 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-03 23:13:42,845 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-03 23:13:42,845 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-03 23:13:42,845 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-03 23:13:42,846 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-03 23:13:42,846 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-03 23:13:42,847 INFO L138 SettingsManager]: * Use SBE=true [2021-11-03 23:13:42,847 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-03 23:13:42,847 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-03 23:13:42,847 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-03 23:13:42,847 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-03 23:13:42,848 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-03 23:13:42,848 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-03 23:13:42,848 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-03 23:13:42,848 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-03 23:13:42,848 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-03 23:13:42,849 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-03 23:13:42,849 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-03 23:13:42,849 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-03 23:13:42,849 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-03 23:13:42,849 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-03 23:13:42,850 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-03 23:13:42,850 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-03 23:13:42,850 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-03 23:13:42,850 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-03 23:13:42,850 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-03 23:13:42,850 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-03 23:13:42,851 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-03 23:13:42,851 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-03 23:13:42,851 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7e3410638a547f2efce35a13c7d23c64ee660b1c493ec273ce9d4043edc218c3 [2021-11-03 23:13:43,086 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-03 23:13:43,107 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-03 23:13:43,110 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-03 23:13:43,111 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-03 23:13:43,113 INFO L275 PluginConnector]: CDTParser initialized [2021-11-03 23:13:43,114 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/aws-c-common/aws_hash_table_put_harness.i [2021-11-03 23:13:43,185 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0658b4ab8/ae40ba8817b0410aa179dbacb606540c/FLAGc925f9215 [2021-11-03 23:13:43,891 INFO L306 CDTParser]: Found 1 translation units. [2021-11-03 23:13:43,892 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_hash_table_put_harness.i [2021-11-03 23:13:43,927 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0658b4ab8/ae40ba8817b0410aa179dbacb606540c/FLAGc925f9215 [2021-11-03 23:13:44,214 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0658b4ab8/ae40ba8817b0410aa179dbacb606540c [2021-11-03 23:13:44,217 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-03 23:13:44,218 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-03 23:13:44,219 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-03 23:13:44,219 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-03 23:13:44,229 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-03 23:13:44,229 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 11:13:44" (1/1) ... [2021-11-03 23:13:44,230 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6827d352 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 11:13:44, skipping insertion in model container [2021-11-03 23:13:44,230 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 11:13:44" (1/1) ... [2021-11-03 23:13:44,236 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-03 23:13:44,342 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-03 23:13:44,572 WARN L228 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_hash_table_put_harness.i[4492,4505] [2021-11-03 23:13:44,578 WARN L228 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_hash_table_put_harness.i[4552,4565] [2021-11-03 23:13:44,605 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-03 23:13:44,612 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-03 23:13:45,247 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 23:13:45,248 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 23:13:45,248 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 23:13:45,248 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 23:13:45,249 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 23:13:45,258 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 23:13:45,259 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 23:13:45,260 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 23:13:45,260 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 23:13:45,262 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 23:13:45,262 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 23:13:45,263 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 23:13:45,263 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 23:13:45,524 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-03 23:13:45,525 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-03 23:13:45,526 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-03 23:13:45,526 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-03 23:13:45,527 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-03 23:13:45,528 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-03 23:13:45,528 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-03 23:13:45,529 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-03 23:13:45,529 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-03 23:13:45,530 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-03 23:13:45,700 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-03 23:13:45,976 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 23:13:45,978 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 23:13:45,993 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 23:13:45,995 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 23:13:46,001 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 23:13:46,001 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 23:13:46,015 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 23:13:46,016 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 23:13:46,017 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 23:13:46,017 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 23:13:46,017 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 23:13:46,018 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 23:13:46,018 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 23:13:46,051 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-03 23:13:46,088 INFO L203 MainTranslator]: Completed pre-run [2021-11-03 23:13:46,118 WARN L228 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_hash_table_put_harness.i[4492,4505] [2021-11-03 23:13:46,119 WARN L228 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_hash_table_put_harness.i[4552,4565] [2021-11-03 23:13:46,121 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-03 23:13:46,121 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-03 23:13:46,153 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 23:13:46,154 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 23:13:46,154 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 23:13:46,154 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 23:13:46,154 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 23:13:46,162 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 23:13:46,162 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 23:13:46,163 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 23:13:46,164 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 23:13:46,164 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 23:13:46,165 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 23:13:46,165 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 23:13:46,165 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 23:13:46,247 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-03 23:13:46,248 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-03 23:13:46,248 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-03 23:13:46,249 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-03 23:13:46,250 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-03 23:13:46,250 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-03 23:13:46,250 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-03 23:13:46,251 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-03 23:13:46,251 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-03 23:13:46,252 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-03 23:13:46,300 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-03 23:13:46,381 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 23:13:46,382 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 23:13:46,387 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 23:13:46,387 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 23:13:46,389 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 23:13:46,390 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 23:13:46,400 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 23:13:46,401 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 23:13:46,401 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 23:13:46,402 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 23:13:46,402 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 23:13:46,402 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 23:13:46,402 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 23:13:46,417 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-03 23:13:46,678 INFO L208 MainTranslator]: Completed translation [2021-11-03 23:13:46,678 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 11:13:46 WrapperNode [2021-11-03 23:13:46,678 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-03 23:13:46,680 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-03 23:13:46,681 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-03 23:13:46,681 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-03 23:13:46,687 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 11:13:46" (1/1) ... [2021-11-03 23:13:46,821 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 11:13:46" (1/1) ... [2021-11-03 23:13:46,956 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-03 23:13:46,958 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-03 23:13:46,958 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-03 23:13:46,959 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-03 23:13:46,966 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 11:13:46" (1/1) ... [2021-11-03 23:13:46,967 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 11:13:46" (1/1) ... [2021-11-03 23:13:46,987 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 11:13:46" (1/1) ... [2021-11-03 23:13:46,988 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 11:13:46" (1/1) ... [2021-11-03 23:13:47,067 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 11:13:46" (1/1) ... [2021-11-03 23:13:47,089 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 11:13:46" (1/1) ... [2021-11-03 23:13:47,107 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 11:13:46" (1/1) ... [2021-11-03 23:13:47,135 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-03 23:13:47,136 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-03 23:13:47,136 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-03 23:13:47,137 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-03 23:13:47,138 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 11:13:46" (1/1) ... [2021-11-03 23:13:47,144 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-03 23:13:47,152 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-03 23:13:47,168 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) [2021-11-03 23:13:47,190 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 [2021-11-03 23:13:47,204 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2021-11-03 23:13:47,204 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-03 23:13:47,204 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-03 23:13:47,204 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-03 23:13:47,204 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-03 23:13:47,205 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-03 23:13:47,205 INFO L130 BoogieDeclarations]: Found specification of procedure __builtin_uaddl_overflow [2021-11-03 23:13:47,205 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-03 23:13:47,205 INFO L130 BoogieDeclarations]: Found specification of procedure __builtin_umull_overflow [2021-11-03 23:13:47,205 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-03 23:13:47,205 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-03 23:13:47,205 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-03 23:13:47,206 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real [2021-11-03 23:13:47,206 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2021-11-03 23:13:47,206 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-03 23:13:47,206 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-03 23:13:52,824 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##256: assume !true; [2021-11-03 23:13:52,825 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##282: assume !true; [2021-11-03 23:13:52,825 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##307: assume !true; [2021-11-03 23:13:52,825 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##62: assume !true; [2021-11-03 23:13:52,825 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##162: assume !true; [2021-11-03 23:13:52,826 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##333: assume !true; [2021-11-03 23:13:52,826 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##109: assume !true; [2021-11-03 23:13:52,839 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-03 23:13:52,839 INFO L299 CfgBuilder]: Removed 380 assume(true) statements. [2021-11-03 23:13:52,842 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 11:13:52 BoogieIcfgContainer [2021-11-03 23:13:52,842 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-03 23:13:52,844 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-03 23:13:52,844 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-03 23:13:52,847 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-03 23:13:52,847 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.11 11:13:44" (1/3) ... [2021-11-03 23:13:52,848 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3d3a32a2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 11:13:52, skipping insertion in model container [2021-11-03 23:13:52,849 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 11:13:46" (2/3) ... [2021-11-03 23:13:52,851 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3d3a32a2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 11:13:52, skipping insertion in model container [2021-11-03 23:13:52,851 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 11:13:52" (3/3) ... [2021-11-03 23:13:52,852 INFO L111 eAbstractionObserver]: Analyzing ICFG aws_hash_table_put_harness.i [2021-11-03 23:13:52,856 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-03 23:13:52,857 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 20 error locations. [2021-11-03 23:13:52,902 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-03 23:13:52,907 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 [2021-11-03 23:13:52,908 INFO L340 AbstractCegarLoop]: Starting to check reachability of 20 error locations. [2021-11-03 23:13:52,930 INFO L276 IsEmpty]: Start isEmpty. Operand has 409 states, 388 states have (on average 1.440721649484536) internal successors, (559), 408 states have internal predecessors, (559), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 23:13:52,936 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2021-11-03 23:13:52,937 INFO L506 BasicCegarLoop]: Found error trace [2021-11-03 23:13:52,937 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 23:13:52,938 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 17 more)] === [2021-11-03 23:13:52,942 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 23:13:52,942 INFO L85 PathProgramCache]: Analyzing trace with hash 424433486, now seen corresponding path program 1 times [2021-11-03 23:13:52,951 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-03 23:13:52,951 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [103775212] [2021-11-03 23:13:52,951 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 23:13:52,953 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-03 23:13:53,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 23:13:53,483 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 23:13:53,483 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-03 23:13:53,483 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [103775212] [2021-11-03 23:13:53,484 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [103775212] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-03 23:13:53,484 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-03 23:13:53,484 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-03 23:13:53,485 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [797659364] [2021-11-03 23:13:53,486 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-03 23:13:53,489 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-03 23:13:53,489 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-03 23:13:53,510 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-03 23:13:53,511 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-03 23:13:53,514 INFO L87 Difference]: Start difference. First operand has 409 states, 388 states have (on average 1.440721649484536) internal successors, (559), 408 states have internal predecessors, (559), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 27.0) internal successors, (54), 2 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 23:13:55,584 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-03 23:13:57,961 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 23:13:57,961 INFO L93 Difference]: Finished difference Result 812 states and 1111 transitions. [2021-11-03 23:13:57,962 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-03 23:13:57,963 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 27.0) internal successors, (54), 2 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 54 [2021-11-03 23:13:57,964 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 23:13:57,974 INFO L225 Difference]: With dead ends: 812 [2021-11-03 23:13:57,974 INFO L226 Difference]: Without dead ends: 402 [2021-11-03 23:13:57,978 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.03ms TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-03 23:13:57,980 INFO L933 BasicCegarLoop]: 0 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 499 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3967.21ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 500 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 7.22ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 499 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4339.18ms IncrementalHoareTripleChecker+Time [2021-11-03 23:13:57,981 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 0 Invalid, 500 Unknown, 0 Unchecked, 7.22ms Time], IncrementalHoareTripleChecker [0 Valid, 499 Invalid, 1 Unknown, 0 Unchecked, 4339.18ms Time] [2021-11-03 23:13:57,994 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 402 states. [2021-11-03 23:13:58,025 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 402 to 402. [2021-11-03 23:13:58,026 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 402 states, 382 states have (on average 1.2958115183246073) internal successors, (495), 401 states have internal predecessors, (495), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 23:13:58,028 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 402 states to 402 states and 495 transitions. [2021-11-03 23:13:58,029 INFO L78 Accepts]: Start accepts. Automaton has 402 states and 495 transitions. Word has length 54 [2021-11-03 23:13:58,029 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 23:13:58,029 INFO L470 AbstractCegarLoop]: Abstraction has 402 states and 495 transitions. [2021-11-03 23:13:58,029 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 27.0) internal successors, (54), 2 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 23:13:58,030 INFO L276 IsEmpty]: Start isEmpty. Operand 402 states and 495 transitions. [2021-11-03 23:13:58,031 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2021-11-03 23:13:58,031 INFO L506 BasicCegarLoop]: Found error trace [2021-11-03 23:13:58,031 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 23:13:58,031 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-03 23:13:58,032 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 17 more)] === [2021-11-03 23:13:58,032 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 23:13:58,032 INFO L85 PathProgramCache]: Analyzing trace with hash 624058192, now seen corresponding path program 1 times [2021-11-03 23:13:58,033 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-03 23:13:58,033 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1302508121] [2021-11-03 23:13:58,033 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 23:13:58,033 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-03 23:13:58,137 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-03 23:13:58,138 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1000457467] [2021-11-03 23:13:58,138 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 23:13:58,138 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-03 23:13:58,139 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-03 23:13:58,144 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) [2021-11-03 23:13:58,227 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-11-03 23:13:59,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 23:13:59,060 INFO L263 TraceCheckSpWp]: Trace formula consists of 2620 conjuncts, 6 conjunts are in the unsatisfiable core [2021-11-03 23:13:59,068 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 23:13:59,626 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 23:13:59,626 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-03 23:13:59,627 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-03 23:13:59,627 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1302508121] [2021-11-03 23:13:59,627 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-03 23:13:59,627 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1000457467] [2021-11-03 23:13:59,627 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1000457467] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-03 23:13:59,627 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-03 23:13:59,628 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-03 23:13:59,628 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1120021079] [2021-11-03 23:13:59,629 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-03 23:13:59,629 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-03 23:13:59,629 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-03 23:13:59,630 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-03 23:13:59,630 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-11-03 23:13:59,630 INFO L87 Difference]: Start difference. First operand 402 states and 495 transitions. Second operand has 6 states, 6 states have (on average 9.0) internal successors, (54), 5 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 23:14:01,685 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-03 23:14:07,600 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 23:14:07,600 INFO L93 Difference]: Finished difference Result 1092 states and 1350 transitions. [2021-11-03 23:14:07,600 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-03 23:14:07,601 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.0) internal successors, (54), 5 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 54 [2021-11-03 23:14:07,601 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 23:14:07,605 INFO L225 Difference]: With dead ends: 1092 [2021-11-03 23:14:07,605 INFO L226 Difference]: Without dead ends: 748 [2021-11-03 23:14:07,607 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 49 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 210.57ms TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2021-11-03 23:14:07,608 INFO L933 BasicCegarLoop]: 0 mSDtfsCounter, 2561 mSDsluCounter, 993 mSDsCounter, 0 mSdLazyCounter, 1543 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7096.19ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 2561 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 1544 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 33.32ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1543 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7663.23ms IncrementalHoareTripleChecker+Time [2021-11-03 23:14:07,608 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2561 Valid, 0 Invalid, 1544 Unknown, 0 Unchecked, 33.32ms Time], IncrementalHoareTripleChecker [0 Valid, 1543 Invalid, 1 Unknown, 0 Unchecked, 7663.23ms Time] [2021-11-03 23:14:07,612 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 748 states. [2021-11-03 23:14:07,635 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 748 to 404. [2021-11-03 23:14:07,636 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 404 states, 384 states have (on average 1.2942708333333333) internal successors, (497), 403 states have internal predecessors, (497), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 23:14:07,637 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 404 states to 404 states and 497 transitions. [2021-11-03 23:14:07,638 INFO L78 Accepts]: Start accepts. Automaton has 404 states and 497 transitions. Word has length 54 [2021-11-03 23:14:07,638 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 23:14:07,638 INFO L470 AbstractCegarLoop]: Abstraction has 404 states and 497 transitions. [2021-11-03 23:14:07,638 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.0) internal successors, (54), 5 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 23:14:07,639 INFO L276 IsEmpty]: Start isEmpty. Operand 404 states and 497 transitions. [2021-11-03 23:14:07,640 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2021-11-03 23:14:07,640 INFO L506 BasicCegarLoop]: Found error trace [2021-11-03 23:14:07,640 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 23:14:07,671 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2021-11-03 23:14:07,863 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 [2021-11-03 23:14:07,864 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 17 more)] === [2021-11-03 23:14:07,864 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 23:14:07,864 INFO L85 PathProgramCache]: Analyzing trace with hash 1304116562, now seen corresponding path program 1 times [2021-11-03 23:14:07,864 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-03 23:14:07,865 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2107390648] [2021-11-03 23:14:07,865 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 23:14:07,865 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-03 23:14:07,963 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-03 23:14:07,963 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [658564743] [2021-11-03 23:14:07,964 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 23:14:07,964 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-03 23:14:07,964 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-03 23:14:07,965 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) [2021-11-03 23:14:07,967 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-11-03 23:14:08,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 23:14:08,750 INFO L263 TraceCheckSpWp]: Trace formula consists of 2613 conjuncts, 7 conjunts are in the unsatisfiable core [2021-11-03 23:14:08,754 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 23:14:08,978 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 23:14:08,979 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-03 23:14:08,979 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-03 23:14:08,979 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2107390648] [2021-11-03 23:14:08,979 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-03 23:14:08,980 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [658564743] [2021-11-03 23:14:08,980 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [658564743] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-03 23:14:08,980 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-03 23:14:08,980 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-03 23:14:08,980 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1808078150] [2021-11-03 23:14:08,981 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-03 23:14:08,981 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-03 23:14:08,981 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-03 23:14:08,982 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-03 23:14:08,982 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-03 23:14:08,982 INFO L87 Difference]: Start difference. First operand 404 states and 497 transitions. Second operand has 5 states, 5 states have (on average 10.8) internal successors, (54), 5 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 23:14:11,019 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-03 23:14:19,968 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 23:14:19,968 INFO L93 Difference]: Finished difference Result 1162 states and 1432 transitions. [2021-11-03 23:14:19,968 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-03 23:14:19,969 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.8) internal successors, (54), 5 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 54 [2021-11-03 23:14:19,969 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 23:14:19,972 INFO L225 Difference]: With dead ends: 1162 [2021-11-03 23:14:19,972 INFO L226 Difference]: Without dead ends: 780 [2021-11-03 23:14:19,974 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 50 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 83.74ms TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-11-03 23:14:19,975 INFO L933 BasicCegarLoop]: 0 mSDtfsCounter, 903 mSDsluCounter, 1817 mSDsCounter, 0 mSdLazyCounter, 2747 mSolverCounterSat, 14 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10109.28ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 903 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 2762 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 24.56ms SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 2747 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10770.60ms IncrementalHoareTripleChecker+Time [2021-11-03 23:14:19,975 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [903 Valid, 0 Invalid, 2762 Unknown, 0 Unchecked, 24.56ms Time], IncrementalHoareTripleChecker [14 Valid, 2747 Invalid, 1 Unknown, 0 Unchecked, 10770.60ms Time] [2021-11-03 23:14:19,976 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 780 states. [2021-11-03 23:14:19,994 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 780 to 410. [2021-11-03 23:14:19,995 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 410 states, 390 states have (on average 1.2897435897435898) internal successors, (503), 409 states have internal predecessors, (503), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 23:14:19,996 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 410 states to 410 states and 503 transitions. [2021-11-03 23:14:19,996 INFO L78 Accepts]: Start accepts. Automaton has 410 states and 503 transitions. Word has length 54 [2021-11-03 23:14:19,997 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 23:14:19,997 INFO L470 AbstractCegarLoop]: Abstraction has 410 states and 503 transitions. [2021-11-03 23:14:19,997 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.8) internal successors, (54), 5 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 23:14:19,997 INFO L276 IsEmpty]: Start isEmpty. Operand 410 states and 503 transitions. [2021-11-03 23:14:19,998 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2021-11-03 23:14:19,998 INFO L506 BasicCegarLoop]: Found error trace [2021-11-03 23:14:19,999 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 23:14:20,030 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2021-11-03 23:14:20,219 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 [2021-11-03 23:14:20,220 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 17 more)] === [2021-11-03 23:14:20,221 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 23:14:20,221 INFO L85 PathProgramCache]: Analyzing trace with hash 1707960046, now seen corresponding path program 1 times [2021-11-03 23:14:20,221 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-03 23:14:20,221 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1238567040] [2021-11-03 23:14:20,221 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 23:14:20,221 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-03 23:14:20,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 23:14:20,656 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 23:14:20,656 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-03 23:14:20,656 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1238567040] [2021-11-03 23:14:20,657 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1238567040] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-03 23:14:20,657 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-03 23:14:20,657 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-11-03 23:14:20,657 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1351756989] [2021-11-03 23:14:20,657 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-03 23:14:20,658 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-03 23:14:20,658 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-03 23:14:20,658 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-03 23:14:20,658 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2021-11-03 23:14:20,659 INFO L87 Difference]: Start difference. First operand 410 states and 503 transitions. Second operand has 8 states, 8 states have (on average 7.0) internal successors, (56), 8 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 23:14:22,707 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-03 23:14:31,221 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 23:14:31,221 INFO L93 Difference]: Finished difference Result 788 states and 969 transitions. [2021-11-03 23:14:31,222 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-11-03 23:14:31,222 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 7.0) internal successors, (56), 8 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 56 [2021-11-03 23:14:31,222 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 23:14:31,223 INFO L225 Difference]: With dead ends: 788 [2021-11-03 23:14:31,224 INFO L226 Difference]: Without dead ends: 416 [2021-11-03 23:14:31,224 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 385.78ms TimeCoverageRelationStatistics Valid=63, Invalid=119, Unknown=0, NotChecked=0, Total=182 [2021-11-03 23:14:31,225 INFO L933 BasicCegarLoop]: 0 mSDtfsCounter, 1011 mSDsluCounter, 1767 mSDsCounter, 0 mSdLazyCounter, 2458 mSolverCounterSat, 4 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9535.28ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 1011 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 2463 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 28.47ms SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 2458 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10179.35ms IncrementalHoareTripleChecker+Time [2021-11-03 23:14:31,226 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1011 Valid, 0 Invalid, 2463 Unknown, 0 Unchecked, 28.47ms Time], IncrementalHoareTripleChecker [4 Valid, 2458 Invalid, 1 Unknown, 0 Unchecked, 10179.35ms Time] [2021-11-03 23:14:31,227 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 416 states. [2021-11-03 23:14:31,240 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 416 to 412. [2021-11-03 23:14:31,241 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 412 states, 392 states have (on average 1.288265306122449) internal successors, (505), 411 states have internal predecessors, (505), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 23:14:31,242 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 412 states to 412 states and 505 transitions. [2021-11-03 23:14:31,242 INFO L78 Accepts]: Start accepts. Automaton has 412 states and 505 transitions. Word has length 56 [2021-11-03 23:14:31,242 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 23:14:31,243 INFO L470 AbstractCegarLoop]: Abstraction has 412 states and 505 transitions. [2021-11-03 23:14:31,243 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 7.0) internal successors, (56), 8 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 23:14:31,243 INFO L276 IsEmpty]: Start isEmpty. Operand 412 states and 505 transitions. [2021-11-03 23:14:31,244 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2021-11-03 23:14:31,244 INFO L506 BasicCegarLoop]: Found error trace [2021-11-03 23:14:31,245 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 23:14:31,245 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-03 23:14:31,245 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 17 more)] === [2021-11-03 23:14:31,246 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 23:14:31,246 INFO L85 PathProgramCache]: Analyzing trace with hash -536023252, now seen corresponding path program 1 times [2021-11-03 23:14:31,246 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-03 23:14:31,246 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1278492421] [2021-11-03 23:14:31,246 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 23:14:31,247 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-03 23:14:31,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 23:14:31,514 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 23:14:31,514 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-03 23:14:31,514 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1278492421] [2021-11-03 23:14:31,514 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1278492421] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-03 23:14:31,514 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-03 23:14:31,515 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-03 23:14:31,515 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1245720776] [2021-11-03 23:14:31,515 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-03 23:14:31,515 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-03 23:14:31,515 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-03 23:14:31,516 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-03 23:14:31,516 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-03 23:14:31,516 INFO L87 Difference]: Start difference. First operand 412 states and 505 transitions. Second operand has 4 states, 4 states have (on average 14.0) internal successors, (56), 4 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 23:14:33,559 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-03 23:14:37,359 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 23:14:37,360 INFO L93 Difference]: Finished difference Result 787 states and 967 transitions. [2021-11-03 23:14:37,360 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-03 23:14:37,360 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 14.0) internal successors, (56), 4 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 56 [2021-11-03 23:14:37,360 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 23:14:37,362 INFO L225 Difference]: With dead ends: 787 [2021-11-03 23:14:37,362 INFO L226 Difference]: Without dead ends: 410 [2021-11-03 23:14:37,362 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 35.45ms TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-03 23:14:37,363 INFO L933 BasicCegarLoop]: 0 mSDtfsCounter, 469 mSDsluCounter, 472 mSDsCounter, 0 mSdLazyCounter, 980 mSolverCounterSat, 4 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5231.27ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 469 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 985 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 8.51ms SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 980 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5754.86ms IncrementalHoareTripleChecker+Time [2021-11-03 23:14:37,363 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [469 Valid, 0 Invalid, 985 Unknown, 0 Unchecked, 8.51ms Time], IncrementalHoareTripleChecker [4 Valid, 980 Invalid, 1 Unknown, 0 Unchecked, 5754.86ms Time] [2021-11-03 23:14:37,365 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 410 states. [2021-11-03 23:14:37,376 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 410 to 410. [2021-11-03 23:14:37,377 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 410 states, 390 states have (on average 1.2820512820512822) internal successors, (500), 409 states have internal predecessors, (500), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 23:14:37,378 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 410 states to 410 states and 500 transitions. [2021-11-03 23:14:37,378 INFO L78 Accepts]: Start accepts. Automaton has 410 states and 500 transitions. Word has length 56 [2021-11-03 23:14:37,379 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 23:14:37,379 INFO L470 AbstractCegarLoop]: Abstraction has 410 states and 500 transitions. [2021-11-03 23:14:37,379 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 14.0) internal successors, (56), 4 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 23:14:37,379 INFO L276 IsEmpty]: Start isEmpty. Operand 410 states and 500 transitions. [2021-11-03 23:14:37,380 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2021-11-03 23:14:37,380 INFO L506 BasicCegarLoop]: Found error trace [2021-11-03 23:14:37,380 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 23:14:37,380 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-11-03 23:14:37,381 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 17 more)] === [2021-11-03 23:14:37,381 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 23:14:37,381 INFO L85 PathProgramCache]: Analyzing trace with hash 2134836531, now seen corresponding path program 1 times [2021-11-03 23:14:37,381 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-03 23:14:37,381 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1562067243] [2021-11-03 23:14:37,382 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 23:14:37,382 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-03 23:14:37,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 23:14:37,697 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 23:14:37,697 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-03 23:14:37,697 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1562067243] [2021-11-03 23:14:37,697 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1562067243] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-03 23:14:37,697 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-03 23:14:37,697 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-03 23:14:37,698 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1949505539] [2021-11-03 23:14:37,698 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-03 23:14:37,698 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-03 23:14:37,698 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-03 23:14:37,698 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-03 23:14:37,699 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-03 23:14:37,699 INFO L87 Difference]: Start difference. First operand 410 states and 500 transitions. Second operand has 5 states, 5 states have (on average 11.6) internal successors, (58), 5 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 23:14:39,744 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-03 23:14:51,317 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 23:14:51,317 INFO L93 Difference]: Finished difference Result 1105 states and 1349 transitions. [2021-11-03 23:14:51,318 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-03 23:14:51,318 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.6) internal successors, (58), 5 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 58 [2021-11-03 23:14:51,318 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 23:14:51,321 INFO L225 Difference]: With dead ends: 1105 [2021-11-03 23:14:51,321 INFO L226 Difference]: Without dead ends: 732 [2021-11-03 23:14:51,322 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 309.17ms TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-11-03 23:14:51,322 INFO L933 BasicCegarLoop]: 0 mSDtfsCounter, 438 mSDsluCounter, 1852 mSDsCounter, 0 mSdLazyCounter, 3041 mSolverCounterSat, 16 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12115.44ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 438 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 3058 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 19.61ms SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 3041 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 13242.40ms IncrementalHoareTripleChecker+Time [2021-11-03 23:14:51,323 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [438 Valid, 0 Invalid, 3058 Unknown, 0 Unchecked, 19.61ms Time], IncrementalHoareTripleChecker [16 Valid, 3041 Invalid, 1 Unknown, 0 Unchecked, 13242.40ms Time] [2021-11-03 23:14:51,324 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 732 states. [2021-11-03 23:14:51,338 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 732 to 410. [2021-11-03 23:14:51,338 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 410 states, 390 states have (on average 1.2769230769230768) internal successors, (498), 409 states have internal predecessors, (498), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 23:14:51,340 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 410 states to 410 states and 498 transitions. [2021-11-03 23:14:51,340 INFO L78 Accepts]: Start accepts. Automaton has 410 states and 498 transitions. Word has length 58 [2021-11-03 23:14:51,340 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 23:14:51,340 INFO L470 AbstractCegarLoop]: Abstraction has 410 states and 498 transitions. [2021-11-03 23:14:51,340 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.6) internal successors, (58), 5 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 23:14:51,341 INFO L276 IsEmpty]: Start isEmpty. Operand 410 states and 498 transitions. [2021-11-03 23:14:51,341 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2021-11-03 23:14:51,341 INFO L506 BasicCegarLoop]: Found error trace [2021-11-03 23:14:51,341 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 23:14:51,342 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-11-03 23:14:51,342 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 17 more)] === [2021-11-03 23:14:51,342 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 23:14:51,342 INFO L85 PathProgramCache]: Analyzing trace with hash 1720093986, now seen corresponding path program 1 times [2021-11-03 23:14:51,343 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-03 23:14:51,343 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [517256176] [2021-11-03 23:14:51,343 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 23:14:51,343 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-03 23:14:51,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 23:14:51,867 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 23:14:51,867 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-03 23:14:51,867 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [517256176] [2021-11-03 23:14:51,867 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [517256176] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-03 23:14:51,867 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-03 23:14:51,868 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-03 23:14:51,868 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [292106028] [2021-11-03 23:14:51,868 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-03 23:14:51,868 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-03 23:14:51,868 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-03 23:14:51,868 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-03 23:14:51,869 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-03 23:14:51,869 INFO L87 Difference]: Start difference. First operand 410 states and 498 transitions. Second operand has 4 states, 4 states have (on average 14.75) internal successors, (59), 4 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 23:14:54,624 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.75s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-03 23:15:01,079 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 23:15:01,079 INFO L93 Difference]: Finished difference Result 951 states and 1165 transitions. [2021-11-03 23:15:01,079 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-03 23:15:01,080 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 14.75) internal successors, (59), 4 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 59 [2021-11-03 23:15:01,080 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 23:15:01,082 INFO L225 Difference]: With dead ends: 951 [2021-11-03 23:15:01,082 INFO L226 Difference]: Without dead ends: 599 [2021-11-03 23:15:01,083 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 51.18ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-03 23:15:01,083 INFO L933 BasicCegarLoop]: 0 mSDtfsCounter, 234 mSDsluCounter, 1050 mSDsCounter, 0 mSdLazyCounter, 1840 mSolverCounterSat, 18 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8295.91ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 234 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 1859 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 9.31ms SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 1840 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9102.70ms IncrementalHoareTripleChecker+Time [2021-11-03 23:15:01,084 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [234 Valid, 0 Invalid, 1859 Unknown, 0 Unchecked, 9.31ms Time], IncrementalHoareTripleChecker [18 Valid, 1840 Invalid, 1 Unknown, 0 Unchecked, 9102.70ms Time] [2021-11-03 23:15:01,085 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 599 states. [2021-11-03 23:15:01,099 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 599 to 410. [2021-11-03 23:15:01,100 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 410 states, 390 states have (on average 1.264102564102564) internal successors, (493), 409 states have internal predecessors, (493), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 23:15:01,101 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 410 states to 410 states and 493 transitions. [2021-11-03 23:15:01,101 INFO L78 Accepts]: Start accepts. Automaton has 410 states and 493 transitions. Word has length 59 [2021-11-03 23:15:01,101 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 23:15:01,101 INFO L470 AbstractCegarLoop]: Abstraction has 410 states and 493 transitions. [2021-11-03 23:15:01,102 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 14.75) internal successors, (59), 4 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 23:15:01,102 INFO L276 IsEmpty]: Start isEmpty. Operand 410 states and 493 transitions. [2021-11-03 23:15:01,102 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2021-11-03 23:15:01,102 INFO L506 BasicCegarLoop]: Found error trace [2021-11-03 23:15:01,103 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 23:15:01,103 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-11-03 23:15:01,103 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 17 more)] === [2021-11-03 23:15:01,103 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 23:15:01,104 INFO L85 PathProgramCache]: Analyzing trace with hash -946222232, now seen corresponding path program 1 times [2021-11-03 23:15:01,104 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-03 23:15:01,104 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [71132796] [2021-11-03 23:15:01,104 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 23:15:01,104 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-03 23:15:01,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 23:15:01,857 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 23:15:01,858 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-03 23:15:01,858 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [71132796] [2021-11-03 23:15:01,858 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [71132796] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-03 23:15:01,858 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-03 23:15:01,858 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-03 23:15:01,858 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1042779911] [2021-11-03 23:15:01,858 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-03 23:15:01,859 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-03 23:15:01,859 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-03 23:15:01,859 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-03 23:15:01,859 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-03 23:15:01,860 INFO L87 Difference]: Start difference. First operand 410 states and 493 transitions. Second operand has 3 states, 3 states have (on average 20.0) internal successors, (60), 3 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 23:15:04,750 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.89s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-03 23:15:08,488 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 23:15:08,488 INFO L93 Difference]: Finished difference Result 410 states and 493 transitions. [2021-11-03 23:15:08,489 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-03 23:15:08,489 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 20.0) internal successors, (60), 3 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 60 [2021-11-03 23:15:08,489 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 23:15:08,491 INFO L225 Difference]: With dead ends: 410 [2021-11-03 23:15:08,491 INFO L226 Difference]: Without dead ends: 408 [2021-11-03 23:15:08,491 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 28.82ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-03 23:15:08,492 INFO L933 BasicCegarLoop]: 0 mSDtfsCounter, 7 mSDsluCounter, 418 mSDsCounter, 0 mSdLazyCounter, 956 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5908.10ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 957 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 4.12ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 956 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6574.02ms IncrementalHoareTripleChecker+Time [2021-11-03 23:15:08,492 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [7 Valid, 0 Invalid, 957 Unknown, 0 Unchecked, 4.12ms Time], IncrementalHoareTripleChecker [0 Valid, 956 Invalid, 1 Unknown, 0 Unchecked, 6574.02ms Time] [2021-11-03 23:15:08,493 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 408 states. [2021-11-03 23:15:08,508 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 408 to 408. [2021-11-03 23:15:08,509 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 408 states, 389 states have (on average 1.262210796915167) internal successors, (491), 407 states have internal predecessors, (491), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 23:15:08,510 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 408 states to 408 states and 491 transitions. [2021-11-03 23:15:08,510 INFO L78 Accepts]: Start accepts. Automaton has 408 states and 491 transitions. Word has length 60 [2021-11-03 23:15:08,510 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 23:15:08,510 INFO L470 AbstractCegarLoop]: Abstraction has 408 states and 491 transitions. [2021-11-03 23:15:08,511 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 20.0) internal successors, (60), 3 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 23:15:08,511 INFO L276 IsEmpty]: Start isEmpty. Operand 408 states and 491 transitions. [2021-11-03 23:15:08,511 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2021-11-03 23:15:08,511 INFO L506 BasicCegarLoop]: Found error trace [2021-11-03 23:15:08,512 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 23:15:08,512 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-11-03 23:15:08,512 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 17 more)] === [2021-11-03 23:15:08,512 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 23:15:08,513 INFO L85 PathProgramCache]: Analyzing trace with hash 1156892718, now seen corresponding path program 1 times [2021-11-03 23:15:08,513 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-03 23:15:08,514 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1301769947] [2021-11-03 23:15:08,515 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 23:15:08,515 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-03 23:15:09,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 23:15:09,522 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 23:15:09,522 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-03 23:15:09,522 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1301769947] [2021-11-03 23:15:09,522 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1301769947] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-03 23:15:09,522 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-03 23:15:09,522 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-03 23:15:09,522 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1446785960] [2021-11-03 23:15:09,522 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-03 23:15:09,523 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-03 23:15:09,523 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-03 23:15:09,523 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-03 23:15:09,523 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-03 23:15:09,523 INFO L87 Difference]: Start difference. First operand 408 states and 491 transitions. Second operand has 4 states, 4 states have (on average 16.75) internal successors, (67), 4 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 23:15:12,575 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-03 23:15:20,720 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 23:15:20,720 INFO L93 Difference]: Finished difference Result 930 states and 1149 transitions. [2021-11-03 23:15:20,720 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-03 23:15:20,721 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 16.75) internal successors, (67), 4 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 67 [2021-11-03 23:15:20,721 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 23:15:20,724 INFO L225 Difference]: With dead ends: 930 [2021-11-03 23:15:20,724 INFO L226 Difference]: Without dead ends: 928 [2021-11-03 23:15:20,724 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 77.00ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-03 23:15:20,724 INFO L933 BasicCegarLoop]: 0 mSDtfsCounter, 917 mSDsluCounter, 1217 mSDsCounter, 0 mSdLazyCounter, 2211 mSolverCounterSat, 2 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10040.68ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 917 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 2214 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 12.75ms SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 2211 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11030.62ms IncrementalHoareTripleChecker+Time [2021-11-03 23:15:20,725 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [917 Valid, 0 Invalid, 2214 Unknown, 0 Unchecked, 12.75ms Time], IncrementalHoareTripleChecker [2 Valid, 2211 Invalid, 1 Unknown, 0 Unchecked, 11030.62ms Time] [2021-11-03 23:15:20,726 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 928 states. [2021-11-03 23:15:20,746 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 928 to 410. [2021-11-03 23:15:20,747 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 410 states, 391 states have (on average 1.2608695652173914) internal successors, (493), 409 states have internal predecessors, (493), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 23:15:20,748 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 410 states to 410 states and 493 transitions. [2021-11-03 23:15:20,748 INFO L78 Accepts]: Start accepts. Automaton has 410 states and 493 transitions. Word has length 67 [2021-11-03 23:15:20,748 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 23:15:20,749 INFO L470 AbstractCegarLoop]: Abstraction has 410 states and 493 transitions. [2021-11-03 23:15:20,749 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 16.75) internal successors, (67), 4 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 23:15:20,749 INFO L276 IsEmpty]: Start isEmpty. Operand 410 states and 493 transitions. [2021-11-03 23:15:20,750 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2021-11-03 23:15:20,750 INFO L506 BasicCegarLoop]: Found error trace [2021-11-03 23:15:20,750 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 23:15:20,750 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-11-03 23:15:20,750 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 17 more)] === [2021-11-03 23:15:20,751 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 23:15:20,751 INFO L85 PathProgramCache]: Analyzing trace with hash 1156952300, now seen corresponding path program 1 times [2021-11-03 23:15:20,751 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-03 23:15:20,751 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1453654972] [2021-11-03 23:15:20,751 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 23:15:20,752 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-03 23:15:21,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 23:15:21,642 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 23:15:21,642 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-03 23:15:21,642 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1453654972] [2021-11-03 23:15:21,642 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1453654972] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-03 23:15:21,642 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-03 23:15:21,642 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-03 23:15:21,642 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [680261440] [2021-11-03 23:15:21,642 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-03 23:15:21,643 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-03 23:15:21,643 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-03 23:15:21,643 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-03 23:15:21,643 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-03 23:15:21,643 INFO L87 Difference]: Start difference. First operand 410 states and 493 transitions. Second operand has 4 states, 4 states have (on average 16.75) internal successors, (67), 4 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 23:15:23,692 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-03 23:15:33,353 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 23:15:33,353 INFO L93 Difference]: Finished difference Result 927 states and 1146 transitions. [2021-11-03 23:15:33,353 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-03 23:15:33,354 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 16.75) internal successors, (67), 4 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 67 [2021-11-03 23:15:33,354 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 23:15:33,357 INFO L225 Difference]: With dead ends: 927 [2021-11-03 23:15:33,357 INFO L226 Difference]: Without dead ends: 925 [2021-11-03 23:15:33,358 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 78.46ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-03 23:15:33,359 INFO L933 BasicCegarLoop]: 0 mSDtfsCounter, 917 mSDsluCounter, 1212 mSDsCounter, 0 mSdLazyCounter, 2198 mSolverCounterSat, 3 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10462.15ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 917 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 2202 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 13.78ms SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 2198 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11522.72ms IncrementalHoareTripleChecker+Time [2021-11-03 23:15:33,359 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [917 Valid, 0 Invalid, 2202 Unknown, 0 Unchecked, 13.78ms Time], IncrementalHoareTripleChecker [3 Valid, 2198 Invalid, 1 Unknown, 0 Unchecked, 11522.72ms Time] [2021-11-03 23:15:33,383 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 925 states. [2021-11-03 23:15:33,406 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 925 to 406. [2021-11-03 23:15:33,406 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 406 states, 388 states have (on average 1.2603092783505154) internal successors, (489), 405 states have internal predecessors, (489), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 23:15:33,407 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 406 states to 406 states and 489 transitions. [2021-11-03 23:15:33,408 INFO L78 Accepts]: Start accepts. Automaton has 406 states and 489 transitions. Word has length 67 [2021-11-03 23:15:33,408 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 23:15:33,408 INFO L470 AbstractCegarLoop]: Abstraction has 406 states and 489 transitions. [2021-11-03 23:15:33,408 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 16.75) internal successors, (67), 4 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 23:15:33,408 INFO L276 IsEmpty]: Start isEmpty. Operand 406 states and 489 transitions. [2021-11-03 23:15:33,409 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2021-11-03 23:15:33,409 INFO L506 BasicCegarLoop]: Found error trace [2021-11-03 23:15:33,409 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 23:15:33,409 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-11-03 23:15:33,410 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 17 more)] === [2021-11-03 23:15:33,410 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 23:15:33,410 INFO L85 PathProgramCache]: Analyzing trace with hash 1860933911, now seen corresponding path program 1 times [2021-11-03 23:15:33,410 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-03 23:15:33,410 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [111495040] [2021-11-03 23:15:33,411 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 23:15:33,411 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-03 23:15:33,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 23:15:33,845 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 23:15:33,845 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-03 23:15:33,847 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [111495040] [2021-11-03 23:15:33,847 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [111495040] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-03 23:15:33,847 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-03 23:15:33,848 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-11-03 23:15:33,848 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [368809816] [2021-11-03 23:15:33,848 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-03 23:15:33,848 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-03 23:15:33,849 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-03 23:15:33,849 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-03 23:15:33,849 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-11-03 23:15:33,849 INFO L87 Difference]: Start difference. First operand 406 states and 489 transitions. Second operand has 7 states, 7 states have (on average 10.428571428571429) internal successors, (73), 7 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 23:15:36,675 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.82s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-03 23:15:47,232 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 23:15:47,233 INFO L93 Difference]: Finished difference Result 1232 states and 1512 transitions. [2021-11-03 23:15:47,233 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-11-03 23:15:47,233 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.428571428571429) internal successors, (73), 7 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 73 [2021-11-03 23:15:47,233 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 23:15:47,236 INFO L225 Difference]: With dead ends: 1232 [2021-11-03 23:15:47,236 INFO L226 Difference]: Without dead ends: 919 [2021-11-03 23:15:47,237 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 395.51ms TimeCoverageRelationStatistics Valid=48, Invalid=84, Unknown=0, NotChecked=0, Total=132 [2021-11-03 23:15:47,238 INFO L933 BasicCegarLoop]: 0 mSDtfsCounter, 2054 mSDsluCounter, 1953 mSDsCounter, 0 mSdLazyCounter, 2748 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11775.38ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 2054 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 2749 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 21.82ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2748 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12948.03ms IncrementalHoareTripleChecker+Time [2021-11-03 23:15:47,238 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2054 Valid, 0 Invalid, 2749 Unknown, 0 Unchecked, 21.82ms Time], IncrementalHoareTripleChecker [0 Valid, 2748 Invalid, 1 Unknown, 0 Unchecked, 12948.03ms Time] [2021-11-03 23:15:47,239 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 919 states. [2021-11-03 23:15:47,264 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 919 to 418. [2021-11-03 23:15:47,265 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 418 states, 400 states have (on average 1.2625) internal successors, (505), 417 states have internal predecessors, (505), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 23:15:47,267 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 418 states to 418 states and 505 transitions. [2021-11-03 23:15:47,267 INFO L78 Accepts]: Start accepts. Automaton has 418 states and 505 transitions. Word has length 73 [2021-11-03 23:15:47,267 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 23:15:47,267 INFO L470 AbstractCegarLoop]: Abstraction has 418 states and 505 transitions. [2021-11-03 23:15:47,268 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.428571428571429) internal successors, (73), 7 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 23:15:47,268 INFO L276 IsEmpty]: Start isEmpty. Operand 418 states and 505 transitions. [2021-11-03 23:15:47,268 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2021-11-03 23:15:47,269 INFO L506 BasicCegarLoop]: Found error trace [2021-11-03 23:15:47,269 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 23:15:47,269 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-11-03 23:15:47,269 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 17 more)] === [2021-11-03 23:15:47,270 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 23:15:47,270 INFO L85 PathProgramCache]: Analyzing trace with hash -1499123456, now seen corresponding path program 1 times [2021-11-03 23:15:47,270 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-03 23:15:47,270 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1043027864] [2021-11-03 23:15:47,270 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 23:15:47,270 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-03 23:15:47,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 23:15:47,584 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 23:15:47,584 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-03 23:15:47,584 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1043027864] [2021-11-03 23:15:47,584 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1043027864] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-03 23:15:47,585 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-03 23:15:47,585 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-03 23:15:47,585 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [790600662] [2021-11-03 23:15:47,585 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-03 23:15:47,585 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-03 23:15:47,585 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-03 23:15:47,585 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-03 23:15:47,586 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-03 23:15:47,586 INFO L87 Difference]: Start difference. First operand 418 states and 505 transitions. Second operand has 4 states, 4 states have (on average 18.5) internal successors, (74), 4 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 23:15:50,579 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.99s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-03 23:15:56,734 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 23:15:56,735 INFO L93 Difference]: Finished difference Result 734 states and 897 transitions. [2021-11-03 23:15:56,735 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-03 23:15:56,735 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 18.5) internal successors, (74), 4 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 74 [2021-11-03 23:15:56,735 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 23:15:56,737 INFO L225 Difference]: With dead ends: 734 [2021-11-03 23:15:56,737 INFO L226 Difference]: Without dead ends: 693 [2021-11-03 23:15:56,738 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 49.91ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-03 23:15:56,738 INFO L933 BasicCegarLoop]: 0 mSDtfsCounter, 583 mSDsluCounter, 1037 mSDsCounter, 0 mSdLazyCounter, 1575 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8048.36ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 583 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 1576 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 9.69ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1575 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9009.15ms IncrementalHoareTripleChecker+Time [2021-11-03 23:15:56,739 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [583 Valid, 0 Invalid, 1576 Unknown, 0 Unchecked, 9.69ms Time], IncrementalHoareTripleChecker [0 Valid, 1575 Invalid, 1 Unknown, 0 Unchecked, 9009.15ms Time] [2021-11-03 23:15:56,740 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 693 states. [2021-11-03 23:15:56,764 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 693 to 420. [2021-11-03 23:15:56,765 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 420 states, 402 states have (on average 1.2611940298507462) internal successors, (507), 419 states have internal predecessors, (507), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 23:15:56,766 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 420 states to 420 states and 507 transitions. [2021-11-03 23:15:56,766 INFO L78 Accepts]: Start accepts. Automaton has 420 states and 507 transitions. Word has length 74 [2021-11-03 23:15:56,766 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 23:15:56,766 INFO L470 AbstractCegarLoop]: Abstraction has 420 states and 507 transitions. [2021-11-03 23:15:56,766 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 18.5) internal successors, (74), 4 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 23:15:56,766 INFO L276 IsEmpty]: Start isEmpty. Operand 420 states and 507 transitions. [2021-11-03 23:15:56,767 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2021-11-03 23:15:56,767 INFO L506 BasicCegarLoop]: Found error trace [2021-11-03 23:15:56,767 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 23:15:56,768 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-11-03 23:15:56,768 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 17 more)] === [2021-11-03 23:15:56,768 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 23:15:56,768 INFO L85 PathProgramCache]: Analyzing trace with hash -1783074560, now seen corresponding path program 1 times [2021-11-03 23:15:56,768 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-03 23:15:56,769 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [732929963] [2021-11-03 23:15:56,769 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 23:15:56,769 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-03 23:15:56,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 23:15:57,373 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 23:15:57,373 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-03 23:15:57,373 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [732929963] [2021-11-03 23:15:57,374 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [732929963] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-03 23:15:57,374 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-03 23:15:57,374 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-11-03 23:15:57,374 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [273513244] [2021-11-03 23:15:57,374 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-03 23:15:57,374 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-03 23:15:57,374 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-03 23:15:57,375 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-03 23:15:57,375 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2021-11-03 23:15:57,375 INFO L87 Difference]: Start difference. First operand 420 states and 507 transitions. Second operand has 8 states, 8 states have (on average 9.375) internal successors, (75), 8 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 23:16:00,296 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.92s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-03 23:16:12,681 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 23:16:12,681 INFO L93 Difference]: Finished difference Result 1319 states and 1631 transitions. [2021-11-03 23:16:12,683 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-11-03 23:16:12,683 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 9.375) internal successors, (75), 8 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 75 [2021-11-03 23:16:12,684 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 23:16:12,687 INFO L225 Difference]: With dead ends: 1319 [2021-11-03 23:16:12,687 INFO L226 Difference]: Without dead ends: 1045 [2021-11-03 23:16:12,688 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 64 ImplicationChecksByTransitivity, 1212.89ms TimeCoverageRelationStatistics Valid=107, Invalid=273, Unknown=0, NotChecked=0, Total=380 [2021-11-03 23:16:12,693 INFO L933 BasicCegarLoop]: 0 mSDtfsCounter, 2898 mSDsluCounter, 1979 mSDsCounter, 0 mSdLazyCounter, 2996 mSolverCounterSat, 31 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12774.79ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 2898 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 3028 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 27.43ms SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 2996 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 14107.80ms IncrementalHoareTripleChecker+Time [2021-11-03 23:16:12,693 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2898 Valid, 0 Invalid, 3028 Unknown, 0 Unchecked, 27.43ms Time], IncrementalHoareTripleChecker [31 Valid, 2996 Invalid, 1 Unknown, 0 Unchecked, 14107.80ms Time] [2021-11-03 23:16:12,695 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1045 states. [2021-11-03 23:16:12,719 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1045 to 420. [2021-11-03 23:16:12,720 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 420 states, 402 states have (on average 1.2587064676616915) internal successors, (506), 419 states have internal predecessors, (506), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 23:16:12,721 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 420 states to 420 states and 506 transitions. [2021-11-03 23:16:12,721 INFO L78 Accepts]: Start accepts. Automaton has 420 states and 506 transitions. Word has length 75 [2021-11-03 23:16:12,722 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 23:16:12,722 INFO L470 AbstractCegarLoop]: Abstraction has 420 states and 506 transitions. [2021-11-03 23:16:12,722 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 9.375) internal successors, (75), 8 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 23:16:12,722 INFO L276 IsEmpty]: Start isEmpty. Operand 420 states and 506 transitions. [2021-11-03 23:16:12,723 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2021-11-03 23:16:12,723 INFO L506 BasicCegarLoop]: Found error trace [2021-11-03 23:16:12,723 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 23:16:12,723 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-11-03 23:16:12,724 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 17 more)] === [2021-11-03 23:16:12,725 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 23:16:12,725 INFO L85 PathProgramCache]: Analyzing trace with hash 561048425, now seen corresponding path program 1 times [2021-11-03 23:16:12,725 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-03 23:16:12,725 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [501780968] [2021-11-03 23:16:12,725 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 23:16:12,726 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-03 23:16:14,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 23:16:14,800 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 23:16:14,800 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-03 23:16:14,800 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [501780968] [2021-11-03 23:16:14,800 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [501780968] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-03 23:16:14,800 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-03 23:16:14,801 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-03 23:16:14,801 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [641271093] [2021-11-03 23:16:14,801 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-03 23:16:14,801 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-03 23:16:14,801 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-03 23:16:14,802 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-03 23:16:14,802 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-03 23:16:14,802 INFO L87 Difference]: Start difference. First operand 420 states and 506 transitions. Second operand has 4 states, 4 states have (on average 19.0) internal successors, (76), 4 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 23:16:17,709 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.91s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-03 23:16:23,746 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 23:16:23,746 INFO L93 Difference]: Finished difference Result 971 states and 1174 transitions. [2021-11-03 23:16:23,747 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-03 23:16:23,747 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 19.0) internal successors, (76), 4 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 76 [2021-11-03 23:16:23,747 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 23:16:23,748 INFO L225 Difference]: With dead ends: 971 [2021-11-03 23:16:23,749 INFO L226 Difference]: Without dead ends: 576 [2021-11-03 23:16:23,749 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 52.75ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-03 23:16:23,750 INFO L933 BasicCegarLoop]: 0 mSDtfsCounter, 192 mSDsluCounter, 987 mSDsCounter, 0 mSdLazyCounter, 1617 mSolverCounterSat, 3 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7889.12ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 192 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 1621 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 8.15ms SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1617 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8811.33ms IncrementalHoareTripleChecker+Time [2021-11-03 23:16:23,750 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [192 Valid, 0 Invalid, 1621 Unknown, 0 Unchecked, 8.15ms Time], IncrementalHoareTripleChecker [3 Valid, 1617 Invalid, 1 Unknown, 0 Unchecked, 8811.33ms Time] [2021-11-03 23:16:23,751 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 576 states. [2021-11-03 23:16:23,780 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 576 to 417. [2021-11-03 23:16:23,781 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 417 states, 399 states have (on average 1.255639097744361) internal successors, (501), 416 states have internal predecessors, (501), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 23:16:23,781 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 417 states to 417 states and 501 transitions. [2021-11-03 23:16:23,782 INFO L78 Accepts]: Start accepts. Automaton has 417 states and 501 transitions. Word has length 76 [2021-11-03 23:16:23,782 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 23:16:23,782 INFO L470 AbstractCegarLoop]: Abstraction has 417 states and 501 transitions. [2021-11-03 23:16:23,782 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 19.0) internal successors, (76), 4 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 23:16:23,782 INFO L276 IsEmpty]: Start isEmpty. Operand 417 states and 501 transitions. [2021-11-03 23:16:23,783 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2021-11-03 23:16:23,783 INFO L506 BasicCegarLoop]: Found error trace [2021-11-03 23:16:23,783 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 23:16:23,783 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2021-11-03 23:16:23,784 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 17 more)] === [2021-11-03 23:16:23,784 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 23:16:23,784 INFO L85 PathProgramCache]: Analyzing trace with hash 1479203388, now seen corresponding path program 1 times [2021-11-03 23:16:23,784 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-03 23:16:23,784 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [621562441] [2021-11-03 23:16:23,785 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 23:16:23,785 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-03 23:16:23,845 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-03 23:16:23,846 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [825137065] [2021-11-03 23:16:23,846 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 23:16:23,846 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-03 23:16:23,846 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-03 23:16:23,851 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) [2021-11-03 23:16:23,877 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-11-03 23:19:57,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 23:19:57,372 INFO L263 TraceCheckSpWp]: Trace formula consists of 2959 conjuncts, 303 conjunts are in the unsatisfiable core [2021-11-03 23:19:57,382 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 23:19:57,461 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-11-03 23:19:58,372 INFO L354 Elim1Store]: treesize reduction 133, result has 15.3 percent of original size [2021-11-03 23:19:58,372 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 11 case distinctions, treesize of input 45 treesize of output 53 [2021-11-03 23:19:58,997 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-11-03 23:19:59,759 INFO L354 Elim1Store]: treesize reduction 112, result has 15.8 percent of original size [2021-11-03 23:19:59,760 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 3 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 11 case distinctions, treesize of input 32 treesize of output 41 [2021-11-03 23:20:00,479 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 22 [2021-11-03 23:20:01,223 INFO L354 Elim1Store]: treesize reduction 78, result has 20.4 percent of original size [2021-11-03 23:20:01,223 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 8 case distinctions, treesize of input 40 treesize of output 50 [2021-11-03 23:20:03,208 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 23:20:03,344 INFO L354 Elim1Store]: treesize reduction 70, result has 28.6 percent of original size [2021-11-03 23:20:03,345 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 2 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 8 case distinctions, treesize of input 40 treesize of output 63 [2021-11-03 23:20:04,302 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 [2021-11-03 23:20:04,384 INFO L354 Elim1Store]: treesize reduction 48, result has 23.8 percent of original size [2021-11-03 23:20:04,385 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 132 treesize of output 110 [2021-11-03 23:20:04,411 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 117 treesize of output 113 [2021-11-03 23:20:04,550 INFO L354 Elim1Store]: treesize reduction 132, result has 15.9 percent of original size [2021-11-03 23:20:04,551 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 14 case distinctions, treesize of input 126 treesize of output 139 [2021-11-03 23:20:40,452 INFO L354 Elim1Store]: treesize reduction 29, result has 19.4 percent of original size [2021-11-03 23:20:40,452 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 202 treesize of output 160 [2021-11-03 23:20:40,518 INFO L354 Elim1Store]: treesize reduction 37, result has 15.9 percent of original size [2021-11-03 23:20:40,519 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 181 treesize of output 172 [2021-11-03 23:20:40,736 INFO L354 Elim1Store]: treesize reduction 102, result has 36.3 percent of original size [2021-11-03 23:20:40,737 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 6 case distinctions, treesize of input 160 treesize of output 146 [2021-11-03 23:21:07,629 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-03 23:21:19,933 WARN L210 SmtUtils]: Spent 12.30s on a formula simplification. DAG size of input: 209 DAG size of output: 92 [2021-11-03 23:21:19,934 INFO L354 Elim1Store]: treesize reduction 948, result has 20.8 percent of original size [2021-11-03 23:21:19,934 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 6 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 11 new quantified variables, introduced 18 case distinctions, treesize of input 8051 treesize of output 4518 [2021-11-03 23:21:20,038 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 23:21:20,054 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 23:22:19,058 WARN L210 SmtUtils]: Spent 58.99s on a formula simplification. DAG size of input: 958 DAG size of output: 470 [2021-11-03 23:22:19,060 INFO L354 Elim1Store]: treesize reduction 6675, result has 24.5 percent of original size [2021-11-03 23:22:19,062 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 36 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 39 new quantified variables, introduced 108 case distinctions, treesize of input 27672 treesize of output 18465 [2021-11-03 23:22:25,060 INFO L354 Elim1Store]: treesize reduction 1128, result has 21.7 percent of original size [2021-11-03 23:22:25,062 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 4 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 7 new quantified variables, introduced 19 case distinctions, treesize of input 20157 treesize of output 20323 [2021-11-03 23:22:52,439 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-03 23:22:52,836 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 23:22:52,929 INFO L244 Elim1Store]: Index analysis took 129 ms [2021-11-03 23:22:53,511 INFO L354 Elim1Store]: treesize reduction 85, result has 10.5 percent of original size [2021-11-03 23:22:53,512 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 5 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 8 case distinctions, treesize of input 423 treesize of output 359 [2021-11-03 23:22:58,530 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 23:22:58,625 INFO L244 Elim1Store]: Index analysis took 108 ms [2021-11-03 23:22:58,940 INFO L354 Elim1Store]: treesize reduction 85, result has 17.5 percent of original size [2021-11-03 23:22:58,940 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 5 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 8 case distinctions, treesize of input 299 treesize of output 273 [2021-11-03 23:23:01,142 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 23:23:01,278 INFO L244 Elim1Store]: Index analysis took 146 ms [2021-11-03 23:23:01,331 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 23:23:01,340 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 23:23:01,605 INFO L354 Elim1Store]: treesize reduction 39, result has 36.1 percent of original size [2021-11-03 23:23:01,606 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 7 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 8 case distinctions, treesize of input 235 treesize of output 153 [2021-11-03 23:23:02,764 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 23:23:02,843 INFO L244 Elim1Store]: Index analysis took 109 ms [2021-11-03 23:23:02,892 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 23:23:03,187 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 23:23:03,188 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 72 treesize of output 86 [2021-11-03 23:23:04,035 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-03 23:23:04,224 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-03 23:23:04,418 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 23:23:04,927 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 23:23:04,927 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 4 case distinctions, treesize of input 100 treesize of output 136 [2021-11-03 23:23:05,864 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 23:23:05,989 INFO L244 Elim1Store]: Index analysis took 132 ms [2021-11-03 23:23:06,155 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 23:23:06,661 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 23:23:06,662 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 100 treesize of output 144 [2021-11-03 23:23:07,780 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 23:23:07,837 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 23:23:07,843 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 23:23:08,064 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 23:23:08,065 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 4 case distinctions, treesize of input 74 treesize of output 76 [2021-11-03 23:23:08,527 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 23:23:08,691 INFO L244 Elim1Store]: Index analysis took 187 ms [2021-11-03 23:23:08,747 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 23:23:09,089 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 23:23:09,090 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 90 treesize of output 112 [2021-11-03 23:23:09,518 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 23:23:09,665 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 23:23:10,186 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 23:23:10,187 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 96 treesize of output 136 [2021-11-03 23:23:11,005 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 23:23:11,131 INFO L244 Elim1Store]: Index analysis took 133 ms [2021-11-03 23:23:11,846 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 23:23:11,847 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 4 case distinctions, treesize of input 100 treesize of output 136 [2021-11-03 23:23:12,833 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 23:23:13,425 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 23:23:13,426 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 4 case distinctions, treesize of input 100 treesize of output 138 [2021-11-03 23:23:15,343 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 23:23:15,419 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 23:23:15,630 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 23:23:15,630 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 86 treesize of output 96 [2021-11-03 23:23:16,197 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 23:23:16,240 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 23:23:16,632 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 23:23:16,632 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 90 treesize of output 112 [2021-11-03 23:23:17,453 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 23:23:17,563 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 23:23:17,754 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 23:23:17,755 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 78 treesize of output 98 [2021-11-03 23:23:18,573 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 23:23:18,607 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 23:23:18,659 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 23:23:18,692 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 23:23:18,924 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 23:23:18,925 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 4 case distinctions, treesize of input 78 treesize of output 92 [2021-11-03 23:23:19,426 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 23:23:19,559 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 23:23:19,942 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 23:23:19,942 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 72 treesize of output 86 [2021-11-03 23:23:20,487 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 23:23:20,572 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 23:23:20,839 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 23:23:20,840 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 92 treesize of output 116 [2021-11-03 23:23:21,674 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 23:23:21,824 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 23:23:22,051 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 23:23:22,052 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 78 treesize of output 98 [2021-11-03 23:23:22,989 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 23:23:23,040 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 23:23:23,234 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 23:23:23,234 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 82 treesize of output 84 [2021-11-03 23:23:23,538 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 23:23:23,662 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 23:23:23,995 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 23:23:23,996 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 74 treesize of output 90 [2021-11-03 23:23:24,795 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 23:23:24,867 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 23:23:24,876 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 23:23:25,073 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 23:23:25,073 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 4 case distinctions, treesize of input 74 treesize of output 76 [2021-11-03 23:23:25,696 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 23:23:26,220 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 23:23:26,221 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 4 case distinctions, treesize of input 88 treesize of output 122 [2021-11-03 23:23:27,067 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 23:23:27,135 INFO L244 Elim1Store]: Index analysis took 103 ms [2021-11-03 23:23:27,662 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 23:23:27,663 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 4 case distinctions, treesize of input 94 treesize of output 126 [2021-11-03 23:23:28,733 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 23:23:28,837 INFO L244 Elim1Store]: Index analysis took 144 ms [2021-11-03 23:23:28,986 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 23:23:28,986 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 3 case distinctions, treesize of input 66 treesize of output 66 [2021-11-03 23:23:29,336 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 23:23:30,177 INFO L354 Elim1Store]: treesize reduction 12, result has 84.0 percent of original size [2021-11-03 23:23:30,178 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 13124 treesize of output 13162 [2021-11-03 23:23:30,255 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 23:23:31,300 INFO L354 Elim1Store]: treesize reduction 16, result has 79.7 percent of original size [2021-11-03 23:23:31,301 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 13156 treesize of output 13194 [2021-11-03 23:24:38,821 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 23:24:38,824 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 23:24:39,046 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 23:24:39,046 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 6 case distinctions, treesize of input 3555 treesize of output 3611 [2021-11-03 23:25:32,549 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 23:25:32,559 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 23:25:32,975 INFO L354 Elim1Store]: treesize reduction 108, result has 51.1 percent of original size [2021-11-03 23:25:32,976 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 6 select indices, 6 select index equivalence classes, 2 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 14 case distinctions, treesize of input 7095 treesize of output 7049 [2021-11-03 23:25:33,039 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 23:25:33,053 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 23:25:33,158 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 23:25:33,159 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 7046 treesize of output 6832 [2021-11-03 23:25:33,228 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 23:25:33,246 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 23:25:33,356 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 23:25:33,357 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 6832 treesize of output 6658 [2021-11-03 23:25:33,414 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 23:25:33,424 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 23:25:33,458 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 23:25:34,007 INFO L354 Elim1Store]: treesize reduction 52, result has 73.6 percent of original size [2021-11-03 23:25:34,008 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 6 select indices, 6 select index equivalence classes, 3 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 14 case distinctions, treesize of input 6658 treesize of output 6588 Killed by 15