./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 35987657 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 0.2.2-?-3598765 [2022-07-21 09:44:11,655 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-21 09:44:11,656 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-21 09:44:11,680 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-21 09:44:11,681 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-21 09:44:11,682 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-21 09:44:11,683 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-21 09:44:11,684 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-21 09:44:11,686 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-21 09:44:11,686 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-21 09:44:11,687 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-21 09:44:11,688 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-21 09:44:11,689 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-21 09:44:11,689 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-21 09:44:11,690 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-21 09:44:11,691 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-21 09:44:11,692 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-21 09:44:11,693 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-21 09:44:11,694 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-21 09:44:11,696 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-21 09:44:11,697 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-21 09:44:11,698 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-21 09:44:11,698 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-21 09:44:11,699 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-21 09:44:11,700 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-21 09:44:11,702 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-21 09:44:11,703 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-21 09:44:11,703 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-21 09:44:11,704 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-21 09:44:11,704 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-21 09:44:11,705 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-21 09:44:11,705 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-21 09:44:11,706 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-21 09:44:11,707 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-21 09:44:11,707 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-21 09:44:11,708 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-21 09:44:11,708 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-21 09:44:11,709 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-21 09:44:11,709 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-21 09:44:11,710 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-21 09:44:11,710 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-21 09:44:11,711 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-21 09:44:11,712 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2022-07-21 09:44:11,731 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-21 09:44:11,732 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-21 09:44:11,732 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-21 09:44:11,732 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-21 09:44:11,733 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-21 09:44:11,733 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-21 09:44:11,734 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-21 09:44:11,734 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-21 09:44:11,735 INFO L138 SettingsManager]: * Use SBE=true [2022-07-21 09:44:11,735 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-21 09:44:11,735 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-21 09:44:11,735 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-21 09:44:11,736 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-21 09:44:11,736 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-21 09:44:11,736 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-21 09:44:11,745 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-21 09:44:11,745 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-21 09:44:11,746 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-21 09:44:11,746 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-21 09:44:11,746 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-21 09:44:11,746 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-21 09:44:11,747 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-21 09:44:11,747 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-21 09:44:11,747 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-21 09:44:11,748 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-21 09:44:11,748 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-21 09:44:11,748 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-21 09:44:11,748 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-21 09:44:11,749 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-21 09:44:11,749 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-21 09:44:11,749 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7e3410638a547f2efce35a13c7d23c64ee660b1c493ec273ce9d4043edc218c3 [2022-07-21 09:44:12,043 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-21 09:44:12,062 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-21 09:44:12,066 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-21 09:44:12,067 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-21 09:44:12,069 INFO L275 PluginConnector]: CDTParser initialized [2022-07-21 09:44:12,070 INFO L432 ainManager$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 [2022-07-21 09:44:12,124 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fe0ec0dde/b7a4ed4dda9f4534a80d594cb460d770/FLAG6739f3649 [2022-07-21 09:44:12,848 INFO L306 CDTParser]: Found 1 translation units. [2022-07-21 09:44:12,849 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_hash_table_put_harness.i [2022-07-21 09:44:12,891 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fe0ec0dde/b7a4ed4dda9f4534a80d594cb460d770/FLAG6739f3649 [2022-07-21 09:44:12,938 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fe0ec0dde/b7a4ed4dda9f4534a80d594cb460d770 [2022-07-21 09:44:12,941 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-21 09:44:12,943 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-21 09:44:12,954 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-21 09:44:12,954 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-21 09:44:12,957 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-21 09:44:12,958 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 09:44:12" (1/1) ... [2022-07-21 09:44:12,959 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@51323d7d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 09:44:12, skipping insertion in model container [2022-07-21 09:44:12,959 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 09:44:12" (1/1) ... [2022-07-21 09:44:12,968 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-21 09:44:13,088 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-21 09:44:13,342 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_hash_table_put_harness.i[4492,4505] [2022-07-21 09:44:13,348 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_hash_table_put_harness.i[4552,4565] [2022-07-21 09:44:14,118 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-21 09:44:14,120 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-21 09:44:14,121 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-21 09:44:14,121 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-21 09:44:14,122 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-21 09:44:14,139 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-21 09:44:14,141 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-21 09:44:14,143 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-21 09:44:14,145 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-21 09:44:14,148 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-21 09:44:14,149 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-21 09:44:14,150 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-21 09:44:14,150 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-21 09:44:14,434 WARN L611 FunctionHandler]: implicit declaration of function __atomic_load_n [2022-07-21 09:44:14,435 WARN L611 FunctionHandler]: implicit declaration of function __atomic_store_n [2022-07-21 09:44:14,436 WARN L611 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2022-07-21 09:44:14,436 WARN L611 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2022-07-21 09:44:14,437 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2022-07-21 09:44:14,438 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2022-07-21 09:44:14,438 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2022-07-21 09:44:14,439 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2022-07-21 09:44:14,439 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2022-07-21 09:44:14,440 WARN L611 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2022-07-21 09:44:14,538 WARN L611 FunctionHandler]: implicit declaration of function __builtin_va_copy [2022-07-21 09:44:14,747 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-21 09:44:14,748 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-21 09:44:14,770 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-21 09:44:14,771 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-21 09:44:14,777 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-21 09:44:14,777 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-21 09:44:14,790 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-21 09:44:14,792 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-21 09:44:14,793 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-21 09:44:14,793 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-21 09:44:14,793 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-21 09:44:14,794 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-21 09:44:14,794 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-21 09:44:14,832 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-21 09:44:14,867 INFO L203 MainTranslator]: Completed pre-run [2022-07-21 09:44:14,919 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_hash_table_put_harness.i[4492,4505] [2022-07-21 09:44:14,920 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_hash_table_put_harness.i[4552,4565] [2022-07-21 09:44:14,960 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-21 09:44:14,961 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-21 09:44:14,961 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-21 09:44:14,962 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-21 09:44:14,962 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-21 09:44:14,970 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-21 09:44:14,971 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-21 09:44:14,971 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-21 09:44:14,972 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-21 09:44:14,972 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-21 09:44:14,973 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-21 09:44:14,973 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-21 09:44:14,973 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-21 09:44:15,000 WARN L611 FunctionHandler]: implicit declaration of function __atomic_load_n [2022-07-21 09:44:15,003 WARN L611 FunctionHandler]: implicit declaration of function __atomic_store_n [2022-07-21 09:44:15,003 WARN L611 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2022-07-21 09:44:15,004 WARN L611 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2022-07-21 09:44:15,004 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2022-07-21 09:44:15,005 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2022-07-21 09:44:15,005 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2022-07-21 09:44:15,006 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2022-07-21 09:44:15,006 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2022-07-21 09:44:15,006 WARN L611 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2022-07-21 09:44:15,023 WARN L611 FunctionHandler]: implicit declaration of function __builtin_va_copy [2022-07-21 09:44:15,125 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-21 09:44:15,125 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-21 09:44:15,131 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-21 09:44:15,132 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-21 09:44:15,134 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-21 09:44:15,135 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-21 09:44:15,144 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-21 09:44:15,145 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-21 09:44:15,145 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-21 09:44:15,146 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-21 09:44:15,146 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-21 09:44:15,147 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-21 09:44:15,147 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-21 09:44:15,161 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-21 09:44:15,480 INFO L208 MainTranslator]: Completed translation [2022-07-21 09:44:15,480 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 09:44:15 WrapperNode [2022-07-21 09:44:15,481 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-21 09:44:15,482 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-21 09:44:15,482 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-21 09:44:15,482 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-21 09:44:15,487 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 09:44:15" (1/1) ... [2022-07-21 09:44:15,576 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 09:44:15" (1/1) ... [2022-07-21 09:44:15,643 INFO L137 Inliner]: procedures = 775, calls = 2489, calls flagged for inlining = 70, calls inlined = 25, statements flattened = 1393 [2022-07-21 09:44:15,643 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-21 09:44:15,644 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-21 09:44:15,644 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-21 09:44:15,644 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-21 09:44:15,651 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 09:44:15" (1/1) ... [2022-07-21 09:44:15,652 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 09:44:15" (1/1) ... [2022-07-21 09:44:15,672 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 09:44:15" (1/1) ... [2022-07-21 09:44:15,673 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 09:44:15" (1/1) ... [2022-07-21 09:44:15,732 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 09:44:15" (1/1) ... [2022-07-21 09:44:15,754 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 09:44:15" (1/1) ... [2022-07-21 09:44:15,764 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 09:44:15" (1/1) ... [2022-07-21 09:44:15,795 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-21 09:44:15,797 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-21 09:44:15,797 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-21 09:44:15,797 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-21 09:44:15,798 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 09:44:15" (1/1) ... [2022-07-21 09:44:15,804 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-21 09:44:15,812 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-21 09:44:15,828 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) [2022-07-21 09:44:15,852 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 [2022-07-21 09:44:15,869 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2022-07-21 09:44:15,869 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_bool [2022-07-21 09:44:15,869 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_bool [2022-07-21 09:44:15,869 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-07-21 09:44:15,870 INFO L130 BoogieDeclarations]: Found specification of procedure aws_raise_error [2022-07-21 09:44:15,870 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_raise_error [2022-07-21 09:44:15,871 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2022-07-21 09:44:15,871 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2022-07-21 09:44:15,871 INFO L130 BoogieDeclarations]: Found specification of procedure hash_table_state_is_valid [2022-07-21 09:44:15,871 INFO L138 BoogieDeclarations]: Found implementation of procedure hash_table_state_is_valid [2022-07-21 09:44:15,871 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-07-21 09:44:15,871 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-21 09:44:15,872 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-07-21 09:44:15,872 INFO L130 BoogieDeclarations]: Found specification of procedure s_emplace_item [2022-07-21 09:44:15,872 INFO L138 BoogieDeclarations]: Found implementation of procedure s_emplace_item [2022-07-21 09:44:15,872 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-21 09:44:15,872 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-21 09:44:15,872 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2022-07-21 09:44:15,873 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2022-07-21 09:44:15,873 INFO L130 BoogieDeclarations]: Found specification of procedure aws_mul_size_checked [2022-07-21 09:44:15,873 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_mul_size_checked [2022-07-21 09:44:15,873 INFO L130 BoogieDeclarations]: Found specification of procedure aws_mem_release [2022-07-21 09:44:15,873 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_mem_release [2022-07-21 09:44:15,873 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-07-21 09:44:15,874 INFO L130 BoogieDeclarations]: Found specification of procedure __CPROVER_overflow_plus [2022-07-21 09:44:15,874 INFO L138 BoogieDeclarations]: Found implementation of procedure __CPROVER_overflow_plus [2022-07-21 09:44:15,874 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-07-21 09:44:15,874 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_uint64_t [2022-07-21 09:44:15,874 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_uint64_t [2022-07-21 09:44:15,874 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-07-21 09:44:15,874 INFO L130 BoogieDeclarations]: Found specification of procedure s_hash_for [2022-07-21 09:44:15,874 INFO L138 BoogieDeclarations]: Found implementation of procedure s_hash_for [2022-07-21 09:44:15,875 INFO L130 BoogieDeclarations]: Found specification of procedure aws_is_power_of_two [2022-07-21 09:44:15,875 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_is_power_of_two [2022-07-21 09:44:15,875 INFO L130 BoogieDeclarations]: Found specification of procedure s_update_template_size [2022-07-21 09:44:15,875 INFO L138 BoogieDeclarations]: Found implementation of procedure s_update_template_size [2022-07-21 09:44:15,875 INFO L130 BoogieDeclarations]: Found specification of procedure s_hash_keys_eq [2022-07-21 09:44:15,875 INFO L138 BoogieDeclarations]: Found implementation of procedure s_hash_keys_eq [2022-07-21 09:44:15,876 INFO L130 BoogieDeclarations]: Found specification of procedure __CPROVER_uninterpreted_equals [2022-07-21 09:44:15,876 INFO L138 BoogieDeclarations]: Found implementation of procedure __CPROVER_uninterpreted_equals [2022-07-21 09:44:15,876 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-07-21 09:44:15,877 INFO L130 BoogieDeclarations]: Found specification of procedure aws_allocator_is_valid [2022-07-21 09:44:15,877 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_allocator_is_valid [2022-07-21 09:44:15,880 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real [2022-07-21 09:44:15,880 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_calloc [2022-07-21 09:44:15,880 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_calloc [2022-07-21 09:44:15,881 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2022-07-21 09:44:15,881 INFO L130 BoogieDeclarations]: Found specification of procedure hash_table_state_required_bytes [2022-07-21 09:44:15,882 INFO L138 BoogieDeclarations]: Found implementation of procedure hash_table_state_required_bytes [2022-07-21 09:44:15,882 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2022-07-21 09:44:15,882 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2022-07-21 09:44:15,882 INFO L130 BoogieDeclarations]: Found specification of procedure __CPROVER_uninterpreted_hasher [2022-07-21 09:44:15,887 INFO L138 BoogieDeclarations]: Found implementation of procedure __CPROVER_uninterpreted_hasher [2022-07-21 09:44:15,887 INFO L130 BoogieDeclarations]: Found specification of procedure s_safe_eq_check [2022-07-21 09:44:15,887 INFO L138 BoogieDeclarations]: Found implementation of procedure s_safe_eq_check [2022-07-21 09:44:15,888 INFO L130 BoogieDeclarations]: Found specification of procedure s_find_entry [2022-07-21 09:44:15,888 INFO L138 BoogieDeclarations]: Found implementation of procedure s_find_entry [2022-07-21 09:44:15,888 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-07-21 09:44:15,888 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-07-21 09:44:15,888 INFO L130 BoogieDeclarations]: Found specification of procedure aws_hash_table_is_valid [2022-07-21 09:44:15,888 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_hash_table_is_valid [2022-07-21 09:44:15,888 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-07-21 09:44:15,888 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_allocator [2022-07-21 09:44:15,889 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_allocator [2022-07-21 09:44:15,889 INFO L130 BoogieDeclarations]: Found specification of procedure __CPROVER_overflow_mult [2022-07-21 09:44:15,889 INFO L138 BoogieDeclarations]: Found implementation of procedure __CPROVER_overflow_mult [2022-07-21 09:44:15,889 INFO L130 BoogieDeclarations]: Found specification of procedure aws_add_size_checked [2022-07-21 09:44:15,889 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_add_size_checked [2022-07-21 09:44:15,889 INFO L130 BoogieDeclarations]: Found specification of procedure s_alloc_state [2022-07-21 09:44:15,889 INFO L138 BoogieDeclarations]: Found implementation of procedure s_alloc_state [2022-07-21 09:44:15,890 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2022-07-21 09:44:15,890 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2022-07-21 09:44:15,890 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-07-21 09:44:16,323 INFO L234 CfgBuilder]: Building ICFG [2022-07-21 09:44:16,326 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-21 09:44:16,554 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##5: assume !true; [2022-07-21 09:44:16,584 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##10: assume !true; [2022-07-21 09:44:17,025 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##7: assume !true; [2022-07-21 09:44:17,026 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##29: assume !true; [2022-07-21 09:44:17,659 INFO L275 CfgBuilder]: Performing block encoding [2022-07-21 09:44:17,673 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-21 09:44:17,674 INFO L299 CfgBuilder]: Removed 11 assume(true) statements. [2022-07-21 09:44:17,677 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 09:44:17 BoogieIcfgContainer [2022-07-21 09:44:17,678 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-21 09:44:17,681 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-21 09:44:17,681 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-21 09:44:17,683 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-21 09:44:17,684 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.07 09:44:12" (1/3) ... [2022-07-21 09:44:17,684 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4a7131d4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 09:44:17, skipping insertion in model container [2022-07-21 09:44:17,684 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 09:44:15" (2/3) ... [2022-07-21 09:44:17,685 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4a7131d4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 09:44:17, skipping insertion in model container [2022-07-21 09:44:17,685 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 09:44:17" (3/3) ... [2022-07-21 09:44:17,686 INFO L111 eAbstractionObserver]: Analyzing ICFG aws_hash_table_put_harness.i [2022-07-21 09:44:17,697 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-21 09:44:17,697 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-07-21 09:44:17,760 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-21 09:44:17,770 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=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, mPorIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@2810633a, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@70827b26 [2022-07-21 09:44:17,771 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-07-21 09:44:17,776 INFO L276 IsEmpty]: Start isEmpty. Operand has 361 states, 248 states have (on average 1.282258064516129) internal successors, (318), 245 states have internal predecessors, (318), 86 states have call successors, (86), 29 states have call predecessors, (86), 29 states have return successors, (86), 86 states have call predecessors, (86), 86 states have call successors, (86) [2022-07-21 09:44:17,790 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2022-07-21 09:44:17,791 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 09:44:17,791 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 09:44:17,792 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 09:44:17,796 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 09:44:17,797 INFO L85 PathProgramCache]: Analyzing trace with hash 200610363, now seen corresponding path program 1 times [2022-07-21 09:44:17,804 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 09:44:17,804 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [68099478] [2022-07-21 09:44:17,804 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 09:44:17,805 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 09:44:18,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:44:18,331 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-21 09:44:18,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:44:18,346 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-07-21 09:44:18,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:44:18,356 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-21 09:44:18,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:44:18,377 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-07-21 09:44:18,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:44:18,407 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2022-07-21 09:44:18,417 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 09:44:18,418 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [68099478] [2022-07-21 09:44:18,418 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unsupported non-linear arithmetic [2022-07-21 09:44:18,418 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1291277665] [2022-07-21 09:44:18,418 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 09:44:18,419 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-21 09:44:18,419 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-21 09:44:18,427 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) [2022-07-21 09:44:18,462 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-07-21 09:44:19,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:44:19,130 INFO L263 TraceCheckSpWp]: Trace formula consists of 2859 conjuncts, 1 conjunts are in the unsatisfiable core [2022-07-21 09:44:19,140 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 09:44:19,177 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 131 trivial. 0 not checked. [2022-07-21 09:44:19,178 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-21 09:44:19,179 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1291277665] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 09:44:19,179 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 09:44:19,179 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-07-21 09:44:19,182 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [676097653] [2022-07-21 09:44:19,182 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 09:44:19,186 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-07-21 09:44:19,187 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 09:44:19,209 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-07-21 09:44:19,210 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-21 09:44:19,214 INFO L87 Difference]: Start difference. First operand has 361 states, 248 states have (on average 1.282258064516129) internal successors, (318), 245 states have internal predecessors, (318), 86 states have call successors, (86), 29 states have call predecessors, (86), 29 states have return successors, (86), 86 states have call predecessors, (86), 86 states have call successors, (86) Second operand has 2 states, 2 states have (on average 34.0) internal successors, (68), 2 states have internal predecessors, (68), 2 states have call successors, (23), 2 states have call predecessors, (23), 2 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2022-07-21 09:44:19,273 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 09:44:19,273 INFO L93 Difference]: Finished difference Result 716 states and 1017 transitions. [2022-07-21 09:44:19,274 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-07-21 09:44:19,275 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 34.0) internal successors, (68), 2 states have internal predecessors, (68), 2 states have call successors, (23), 2 states have call predecessors, (23), 2 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) Word has length 136 [2022-07-21 09:44:19,276 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 09:44:19,286 INFO L225 Difference]: With dead ends: 716 [2022-07-21 09:44:19,286 INFO L226 Difference]: Without dead ends: 355 [2022-07-21 09:44:19,292 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 148 GetRequests, 147 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-21 09:44:19,294 INFO L413 NwaCegarLoop]: 479 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 479 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-21 09:44:19,295 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 479 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-21 09:44:19,309 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 355 states. [2022-07-21 09:44:19,344 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 355 to 355. [2022-07-21 09:44:19,346 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 355 states, 239 states have (on average 1.2677824267782427) internal successors, (303), 240 states have internal predecessors, (303), 86 states have call successors, (86), 29 states have call predecessors, (86), 29 states have return successors, (85), 85 states have call predecessors, (85), 85 states have call successors, (85) [2022-07-21 09:44:19,348 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 355 states to 355 states and 474 transitions. [2022-07-21 09:44:19,350 INFO L78 Accepts]: Start accepts. Automaton has 355 states and 474 transitions. Word has length 136 [2022-07-21 09:44:19,351 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 09:44:19,351 INFO L495 AbstractCegarLoop]: Abstraction has 355 states and 474 transitions. [2022-07-21 09:44:19,352 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 34.0) internal successors, (68), 2 states have internal predecessors, (68), 2 states have call successors, (23), 2 states have call predecessors, (23), 2 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2022-07-21 09:44:19,352 INFO L276 IsEmpty]: Start isEmpty. Operand 355 states and 474 transitions. [2022-07-21 09:44:19,354 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2022-07-21 09:44:19,354 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 09:44:19,355 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 09:44:19,387 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-07-21 09:44:19,568 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2022-07-21 09:44:19,568 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 09:44:19,569 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 09:44:19,569 INFO L85 PathProgramCache]: Analyzing trace with hash 810580097, now seen corresponding path program 1 times [2022-07-21 09:44:19,569 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 09:44:19,569 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1131695254] [2022-07-21 09:44:19,569 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 09:44:19,569 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 09:44:19,702 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-07-21 09:44:19,703 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1707488391] [2022-07-21 09:44:19,703 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 09:44:19,703 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-21 09:44:19,704 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-21 09:44:19,705 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) [2022-07-21 09:44:19,715 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-07-21 09:44:20,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:44:20,375 INFO L263 TraceCheckSpWp]: Trace formula consists of 2859 conjuncts, 6 conjunts are in the unsatisfiable core [2022-07-21 09:44:20,382 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 09:44:20,587 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 32 proven. 0 refuted. 0 times theorem prover too weak. 118 trivial. 0 not checked. [2022-07-21 09:44:20,588 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-21 09:44:20,588 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 09:44:20,588 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1131695254] [2022-07-21 09:44:20,588 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-07-21 09:44:20,588 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1707488391] [2022-07-21 09:44:20,589 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1707488391] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 09:44:20,589 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 09:44:20,589 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-07-21 09:44:20,589 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1876433986] [2022-07-21 09:44:20,589 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 09:44:20,590 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-21 09:44:20,590 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 09:44:20,591 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-21 09:44:20,591 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-07-21 09:44:20,591 INFO L87 Difference]: Start difference. First operand 355 states and 474 transitions. Second operand has 6 states, 6 states have (on average 11.166666666666666) internal successors, (67), 5 states have internal predecessors, (67), 2 states have call successors, (23), 2 states have call predecessors, (23), 2 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2022-07-21 09:44:21,118 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 09:44:21,118 INFO L93 Difference]: Finished difference Result 727 states and 982 transitions. [2022-07-21 09:44:21,119 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-21 09:44:21,119 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 11.166666666666666) internal successors, (67), 5 states have internal predecessors, (67), 2 states have call successors, (23), 2 states have call predecessors, (23), 2 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) Word has length 136 [2022-07-21 09:44:21,120 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 09:44:21,123 INFO L225 Difference]: With dead ends: 727 [2022-07-21 09:44:21,123 INFO L226 Difference]: Without dead ends: 419 [2022-07-21 09:44:21,125 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 139 GetRequests, 131 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2022-07-21 09:44:21,126 INFO L413 NwaCegarLoop]: 482 mSDtfsCounter, 632 mSDsluCounter, 1275 mSDsCounter, 0 mSdLazyCounter, 161 mSolverCounterSat, 78 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 632 SdHoareTripleChecker+Valid, 1757 SdHoareTripleChecker+Invalid, 239 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 78 IncrementalHoareTripleChecker+Valid, 161 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-07-21 09:44:21,126 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [632 Valid, 1757 Invalid, 239 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [78 Valid, 161 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-07-21 09:44:21,127 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 419 states. [2022-07-21 09:44:21,157 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 419 to 357. [2022-07-21 09:44:21,158 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 357 states, 241 states have (on average 1.2655601659751037) internal successors, (305), 242 states have internal predecessors, (305), 86 states have call successors, (86), 29 states have call predecessors, (86), 29 states have return successors, (85), 85 states have call predecessors, (85), 85 states have call successors, (85) [2022-07-21 09:44:21,160 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 357 states to 357 states and 476 transitions. [2022-07-21 09:44:21,161 INFO L78 Accepts]: Start accepts. Automaton has 357 states and 476 transitions. Word has length 136 [2022-07-21 09:44:21,161 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 09:44:21,162 INFO L495 AbstractCegarLoop]: Abstraction has 357 states and 476 transitions. [2022-07-21 09:44:21,162 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.166666666666666) internal successors, (67), 5 states have internal predecessors, (67), 2 states have call successors, (23), 2 states have call predecessors, (23), 2 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2022-07-21 09:44:21,162 INFO L276 IsEmpty]: Start isEmpty. Operand 357 states and 476 transitions. [2022-07-21 09:44:21,164 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2022-07-21 09:44:21,164 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 09:44:21,164 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 09:44:21,194 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-07-21 09:44:21,391 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable1 [2022-07-21 09:44:21,391 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 09:44:21,392 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 09:44:21,392 INFO L85 PathProgramCache]: Analyzing trace with hash 1233281923, now seen corresponding path program 1 times [2022-07-21 09:44:21,392 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 09:44:21,392 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [433735883] [2022-07-21 09:44:21,392 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 09:44:21,392 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 09:44:21,481 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-07-21 09:44:21,481 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [395871226] [2022-07-21 09:44:21,481 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 09:44:21,481 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-21 09:44:21,482 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-21 09:44:21,483 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) [2022-07-21 09:44:21,512 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-07-21 09:44:22,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:44:22,174 INFO L263 TraceCheckSpWp]: Trace formula consists of 2852 conjuncts, 7 conjunts are in the unsatisfiable core [2022-07-21 09:44:22,179 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 09:44:22,201 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 59 proven. 0 refuted. 0 times theorem prover too weak. 91 trivial. 0 not checked. [2022-07-21 09:44:22,202 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-21 09:44:22,202 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 09:44:22,202 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [433735883] [2022-07-21 09:44:22,202 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-07-21 09:44:22,202 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [395871226] [2022-07-21 09:44:22,203 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [395871226] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 09:44:22,203 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 09:44:22,203 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-07-21 09:44:22,203 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1510832928] [2022-07-21 09:44:22,203 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 09:44:22,204 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-21 09:44:22,204 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 09:44:22,205 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-21 09:44:22,205 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-21 09:44:22,205 INFO L87 Difference]: Start difference. First operand 357 states and 476 transitions. Second operand has 5 states, 5 states have (on average 13.8) internal successors, (69), 5 states have internal predecessors, (69), 2 states have call successors, (23), 2 states have call predecessors, (23), 3 states have return successors, (21), 3 states have call predecessors, (21), 2 states have call successors, (21) [2022-07-21 09:44:22,267 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 09:44:22,267 INFO L93 Difference]: Finished difference Result 710 states and 950 transitions. [2022-07-21 09:44:22,268 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-21 09:44:22,268 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.8) internal successors, (69), 5 states have internal predecessors, (69), 2 states have call successors, (23), 2 states have call predecessors, (23), 3 states have return successors, (21), 3 states have call predecessors, (21), 2 states have call successors, (21) Word has length 136 [2022-07-21 09:44:22,268 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 09:44:22,273 INFO L225 Difference]: With dead ends: 710 [2022-07-21 09:44:22,273 INFO L226 Difference]: Without dead ends: 362 [2022-07-21 09:44:22,274 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 136 GetRequests, 132 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-07-21 09:44:22,275 INFO L413 NwaCegarLoop]: 471 mSDtfsCounter, 2 mSDsluCounter, 1405 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 1876 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-21 09:44:22,275 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 1876 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-21 09:44:22,276 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 362 states. [2022-07-21 09:44:22,313 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 362 to 362. [2022-07-21 09:44:22,314 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 362 states, 245 states have (on average 1.2612244897959184) internal successors, (309), 246 states have internal predecessors, (309), 86 states have call successors, (86), 29 states have call predecessors, (86), 30 states have return successors, (89), 86 states have call predecessors, (89), 85 states have call successors, (89) [2022-07-21 09:44:22,326 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 362 states to 362 states and 484 transitions. [2022-07-21 09:44:22,327 INFO L78 Accepts]: Start accepts. Automaton has 362 states and 484 transitions. Word has length 136 [2022-07-21 09:44:22,327 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 09:44:22,327 INFO L495 AbstractCegarLoop]: Abstraction has 362 states and 484 transitions. [2022-07-21 09:44:22,328 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.8) internal successors, (69), 5 states have internal predecessors, (69), 2 states have call successors, (23), 2 states have call predecessors, (23), 3 states have return successors, (21), 3 states have call predecessors, (21), 2 states have call successors, (21) [2022-07-21 09:44:22,328 INFO L276 IsEmpty]: Start isEmpty. Operand 362 states and 484 transitions. [2022-07-21 09:44:22,330 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2022-07-21 09:44:22,330 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 09:44:22,336 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 09:44:22,365 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-07-21 09:44:22,555 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-21 09:44:22,556 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 09:44:22,556 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 09:44:22,556 INFO L85 PathProgramCache]: Analyzing trace with hash 292227623, now seen corresponding path program 1 times [2022-07-21 09:44:22,556 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 09:44:22,556 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [543136296] [2022-07-21 09:44:22,557 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 09:44:22,557 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 09:44:22,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:44:22,857 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-21 09:44:22,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:44:22,867 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-07-21 09:44:22,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:44:22,893 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-21 09:44:22,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:44:22,916 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-07-21 09:44:22,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:44:22,941 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2022-07-21 09:44:22,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:44:22,960 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 09:44:22,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:44:22,978 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 09:44:22,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:44:22,992 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 09:44:22,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:44:23,000 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2022-07-21 09:44:23,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:44:23,012 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2022-07-21 09:44:23,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:44:23,072 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 09:44:23,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:44:23,082 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-07-21 09:44:23,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:44:23,156 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2022-07-21 09:44:23,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:44:23,165 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2022-07-21 09:44:23,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:44:23,173 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2022-07-21 09:44:23,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:44:23,187 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2022-07-21 09:44:23,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:44:23,196 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2022-07-21 09:44:23,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:44:23,204 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2022-07-21 09:44:23,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:44:23,211 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2022-07-21 09:44:23,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:44:23,221 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2022-07-21 09:44:23,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:44:23,229 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2022-07-21 09:44:23,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:44:23,236 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2022-07-21 09:44:23,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:44:23,244 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-07-21 09:44:23,244 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 09:44:23,245 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [543136296] [2022-07-21 09:44:23,245 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [543136296] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 09:44:23,245 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 09:44:23,245 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-07-21 09:44:23,245 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1057343545] [2022-07-21 09:44:23,245 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 09:44:23,247 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-07-21 09:44:23,247 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 09:44:23,247 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-07-21 09:44:23,248 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=128, Unknown=0, NotChecked=0, Total=156 [2022-07-21 09:44:23,249 INFO L87 Difference]: Start difference. First operand 362 states and 484 transitions. Second operand has 13 states, 13 states have (on average 5.230769230769231) internal successors, (68), 9 states have internal predecessors, (68), 4 states have call successors, (24), 5 states have call predecessors, (24), 3 states have return successors, (22), 4 states have call predecessors, (22), 4 states have call successors, (22) [2022-07-21 09:44:26,913 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 09:44:26,913 INFO L93 Difference]: Finished difference Result 761 states and 1022 transitions. [2022-07-21 09:44:26,914 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-21 09:44:26,914 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 5.230769230769231) internal successors, (68), 9 states have internal predecessors, (68), 4 states have call successors, (24), 5 states have call predecessors, (24), 3 states have return successors, (22), 4 states have call predecessors, (22), 4 states have call successors, (22) Word has length 142 [2022-07-21 09:44:26,914 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 09:44:26,918 INFO L225 Difference]: With dead ends: 761 [2022-07-21 09:44:26,918 INFO L226 Difference]: Without dead ends: 420 [2022-07-21 09:44:26,919 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 59 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=92, Invalid=328, Unknown=0, NotChecked=0, Total=420 [2022-07-21 09:44:26,920 INFO L413 NwaCegarLoop]: 420 mSDtfsCounter, 319 mSDsluCounter, 1696 mSDsCounter, 0 mSdLazyCounter, 2596 mSolverCounterSat, 132 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 386 SdHoareTripleChecker+Valid, 2116 SdHoareTripleChecker+Invalid, 2728 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 132 IncrementalHoareTripleChecker+Valid, 2596 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.4s IncrementalHoareTripleChecker+Time [2022-07-21 09:44:26,921 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [386 Valid, 2116 Invalid, 2728 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [132 Valid, 2596 Invalid, 0 Unknown, 0 Unchecked, 3.4s Time] [2022-07-21 09:44:26,922 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 420 states. [2022-07-21 09:44:26,960 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 420 to 367. [2022-07-21 09:44:26,960 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 367 states, 249 states have (on average 1.2610441767068272) internal successors, (314), 251 states have internal predecessors, (314), 86 states have call successors, (86), 29 states have call predecessors, (86), 31 states have return successors, (90), 86 states have call predecessors, (90), 85 states have call successors, (90) [2022-07-21 09:44:26,963 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 367 states to 367 states and 490 transitions. [2022-07-21 09:44:26,963 INFO L78 Accepts]: Start accepts. Automaton has 367 states and 490 transitions. Word has length 142 [2022-07-21 09:44:26,964 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 09:44:26,964 INFO L495 AbstractCegarLoop]: Abstraction has 367 states and 490 transitions. [2022-07-21 09:44:26,964 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 5.230769230769231) internal successors, (68), 9 states have internal predecessors, (68), 4 states have call successors, (24), 5 states have call predecessors, (24), 3 states have return successors, (22), 4 states have call predecessors, (22), 4 states have call successors, (22) [2022-07-21 09:44:26,964 INFO L276 IsEmpty]: Start isEmpty. Operand 367 states and 490 transitions. [2022-07-21 09:44:26,966 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2022-07-21 09:44:26,966 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 09:44:26,967 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 09:44:26,967 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-07-21 09:44:26,967 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 09:44:26,967 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 09:44:26,968 INFO L85 PathProgramCache]: Analyzing trace with hash 319293225, now seen corresponding path program 1 times [2022-07-21 09:44:26,968 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 09:44:26,968 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [251473107] [2022-07-21 09:44:26,968 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 09:44:26,968 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 09:44:27,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:44:27,122 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-21 09:44:27,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:44:27,131 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-07-21 09:44:27,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:44:27,140 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-21 09:44:27,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:44:27,149 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-07-21 09:44:27,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:44:27,168 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2022-07-21 09:44:27,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:44:27,184 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 09:44:27,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:44:27,198 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 09:44:27,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:44:27,210 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 09:44:27,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:44:27,216 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2022-07-21 09:44:27,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:44:27,225 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2022-07-21 09:44:27,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:44:27,235 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 09:44:27,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:44:27,246 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-07-21 09:44:27,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:44:27,287 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2022-07-21 09:44:27,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:44:27,295 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2022-07-21 09:44:27,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:44:27,303 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2022-07-21 09:44:27,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:44:27,310 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2022-07-21 09:44:27,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:44:27,317 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2022-07-21 09:44:27,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:44:27,326 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2022-07-21 09:44:27,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:44:27,337 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2022-07-21 09:44:27,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:44:27,347 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2022-07-21 09:44:27,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:44:27,356 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2022-07-21 09:44:27,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:44:27,382 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2022-07-21 09:44:27,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:44:27,389 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-07-21 09:44:27,389 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 09:44:27,389 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [251473107] [2022-07-21 09:44:27,389 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [251473107] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 09:44:27,389 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 09:44:27,389 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-21 09:44:27,389 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [260729712] [2022-07-21 09:44:27,390 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 09:44:27,390 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-07-21 09:44:27,390 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 09:44:27,391 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-07-21 09:44:27,391 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2022-07-21 09:44:27,391 INFO L87 Difference]: Start difference. First operand 367 states and 490 transitions. Second operand has 8 states, 8 states have (on average 8.5) internal successors, (68), 5 states have internal predecessors, (68), 3 states have call successors, (24), 5 states have call predecessors, (24), 2 states have return successors, (22), 3 states have call predecessors, (22), 3 states have call successors, (22) [2022-07-21 09:44:28,935 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 09:44:28,935 INFO L93 Difference]: Finished difference Result 768 states and 1030 transitions. [2022-07-21 09:44:28,936 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-07-21 09:44:28,936 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 8.5) internal successors, (68), 5 states have internal predecessors, (68), 3 states have call successors, (24), 5 states have call predecessors, (24), 2 states have return successors, (22), 3 states have call predecessors, (22), 3 states have call successors, (22) Word has length 142 [2022-07-21 09:44:28,937 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 09:44:28,940 INFO L225 Difference]: With dead ends: 768 [2022-07-21 09:44:28,940 INFO L226 Difference]: Without dead ends: 415 [2022-07-21 09:44:28,941 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=37, Invalid=73, Unknown=0, NotChecked=0, Total=110 [2022-07-21 09:44:28,942 INFO L413 NwaCegarLoop]: 431 mSDtfsCounter, 523 mSDsluCounter, 844 mSDsCounter, 0 mSdLazyCounter, 1139 mSolverCounterSat, 356 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 592 SdHoareTripleChecker+Valid, 1275 SdHoareTripleChecker+Invalid, 1495 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 356 IncrementalHoareTripleChecker+Valid, 1139 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2022-07-21 09:44:28,942 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [592 Valid, 1275 Invalid, 1495 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [356 Valid, 1139 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2022-07-21 09:44:28,944 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 415 states. [2022-07-21 09:44:28,964 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 415 to 365. [2022-07-21 09:44:28,965 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 365 states, 247 states have (on average 1.2550607287449393) internal successors, (310), 249 states have internal predecessors, (310), 86 states have call successors, (86), 29 states have call predecessors, (86), 31 states have return successors, (90), 86 states have call predecessors, (90), 85 states have call successors, (90) [2022-07-21 09:44:28,967 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 365 states to 365 states and 486 transitions. [2022-07-21 09:44:28,968 INFO L78 Accepts]: Start accepts. Automaton has 365 states and 486 transitions. Word has length 142 [2022-07-21 09:44:28,968 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 09:44:28,968 INFO L495 AbstractCegarLoop]: Abstraction has 365 states and 486 transitions. [2022-07-21 09:44:28,968 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 8.5) internal successors, (68), 5 states have internal predecessors, (68), 3 states have call successors, (24), 5 states have call predecessors, (24), 2 states have return successors, (22), 3 states have call predecessors, (22), 3 states have call successors, (22) [2022-07-21 09:44:28,969 INFO L276 IsEmpty]: Start isEmpty. Operand 365 states and 486 transitions. [2022-07-21 09:44:28,970 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2022-07-21 09:44:28,971 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 09:44:28,971 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 09:44:28,971 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-07-21 09:44:28,971 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 09:44:28,972 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 09:44:28,972 INFO L85 PathProgramCache]: Analyzing trace with hash 1626460037, now seen corresponding path program 1 times [2022-07-21 09:44:28,972 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 09:44:28,972 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1220538015] [2022-07-21 09:44:28,972 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 09:44:28,972 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 09:44:29,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:44:29,095 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-21 09:44:29,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:44:29,102 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-07-21 09:44:29,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:44:29,108 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-21 09:44:29,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:44:29,115 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-07-21 09:44:29,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:44:29,132 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2022-07-21 09:44:29,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:44:29,143 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 09:44:29,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:44:29,159 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 09:44:29,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:44:29,201 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 09:44:29,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:44:29,208 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2022-07-21 09:44:29,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:44:29,215 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2022-07-21 09:44:29,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:44:29,223 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 09:44:29,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:44:29,230 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-07-21 09:44:29,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:44:29,291 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-07-21 09:44:29,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:44:29,327 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2022-07-21 09:44:29,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:44:29,335 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2022-07-21 09:44:29,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:44:29,341 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2022-07-21 09:44:29,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:44:29,347 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2022-07-21 09:44:29,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:44:29,354 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2022-07-21 09:44:29,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:44:29,360 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2022-07-21 09:44:29,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:44:29,367 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2022-07-21 09:44:29,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:44:29,374 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2022-07-21 09:44:29,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:44:29,381 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2022-07-21 09:44:29,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:44:29,388 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2022-07-21 09:44:29,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:44:29,394 INFO L134 CoverageAnalysis]: Checked inductivity of 154 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 151 trivial. 0 not checked. [2022-07-21 09:44:29,395 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 09:44:29,395 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1220538015] [2022-07-21 09:44:29,395 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1220538015] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-21 09:44:29,395 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1542610872] [2022-07-21 09:44:29,396 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 09:44:29,396 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-21 09:44:29,396 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-21 09:44:29,397 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-21 09:44:29,413 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-07-21 09:44:30,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:44:30,073 INFO L263 TraceCheckSpWp]: Trace formula consists of 2880 conjuncts, 23 conjunts are in the unsatisfiable core [2022-07-21 09:44:30,078 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 09:44:31,050 WARN L855 $PredicateComparison]: unable to prove that (or (exists ((aws_hash_table_is_valid_~map.base Int) (aws_hash_table_is_valid_~map.offset Int)) (not (= 0 (select (select |c_#memory_$Pointer$.offset| aws_hash_table_is_valid_~map.base) aws_hash_table_is_valid_~map.offset)))) (exists ((aws_hash_table_is_valid_~map.base Int) (aws_hash_table_is_valid_~map.offset Int)) (not (= (select (select |c_#memory_$Pointer$.base| aws_hash_table_is_valid_~map.base) aws_hash_table_is_valid_~map.offset) 0)))) is different from true [2022-07-21 09:44:37,363 INFO L134 CoverageAnalysis]: Checked inductivity of 154 backedges. 87 proven. 0 refuted. 0 times theorem prover too weak. 67 trivial. 0 not checked. [2022-07-21 09:44:37,363 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-21 09:44:37,364 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1542610872] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 09:44:37,364 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-21 09:44:37,364 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [10] total 16 [2022-07-21 09:44:37,364 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1598985765] [2022-07-21 09:44:37,364 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 09:44:37,365 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-07-21 09:44:37,365 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 09:44:37,365 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-07-21 09:44:37,365 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=175, Unknown=3, NotChecked=26, Total=240 [2022-07-21 09:44:37,366 INFO L87 Difference]: Start difference. First operand 365 states and 486 transitions. Second operand has 8 states, 7 states have (on average 11.0) internal successors, (77), 7 states have internal predecessors, (77), 3 states have call successors, (25), 3 states have call predecessors, (25), 3 states have return successors, (23), 2 states have call predecessors, (23), 3 states have call successors, (23) [2022-07-21 09:44:38,211 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 09:44:38,212 INFO L93 Difference]: Finished difference Result 713 states and 950 transitions. [2022-07-21 09:44:38,218 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-07-21 09:44:38,218 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 11.0) internal successors, (77), 7 states have internal predecessors, (77), 3 states have call successors, (25), 3 states have call predecessors, (25), 3 states have return successors, (23), 2 states have call predecessors, (23), 3 states have call successors, (23) Word has length 148 [2022-07-21 09:44:38,218 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 09:44:38,221 INFO L225 Difference]: With dead ends: 713 [2022-07-21 09:44:38,221 INFO L226 Difference]: Without dead ends: 367 [2022-07-21 09:44:38,222 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 202 GetRequests, 186 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 7.3s TimeCoverageRelationStatistics Valid=51, Invalid=222, Unknown=3, NotChecked=30, Total=306 [2022-07-21 09:44:38,226 INFO L413 NwaCegarLoop]: 467 mSDtfsCounter, 5 mSDsluCounter, 2037 mSDsCounter, 0 mSdLazyCounter, 116 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 2504 SdHoareTripleChecker+Invalid, 792 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 116 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 676 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-07-21 09:44:38,227 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 2504 Invalid, 792 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 116 Invalid, 0 Unknown, 676 Unchecked, 0.7s Time] [2022-07-21 09:44:38,228 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 367 states. [2022-07-21 09:44:38,244 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 367 to 367. [2022-07-21 09:44:38,244 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 367 states, 249 states have (on average 1.2530120481927711) internal successors, (312), 250 states have internal predecessors, (312), 86 states have call successors, (86), 30 states have call predecessors, (86), 31 states have return successors, (90), 86 states have call predecessors, (90), 85 states have call successors, (90) [2022-07-21 09:44:38,246 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 367 states to 367 states and 488 transitions. [2022-07-21 09:44:38,247 INFO L78 Accepts]: Start accepts. Automaton has 367 states and 488 transitions. Word has length 148 [2022-07-21 09:44:38,247 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 09:44:38,247 INFO L495 AbstractCegarLoop]: Abstraction has 367 states and 488 transitions. [2022-07-21 09:44:38,248 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 11.0) internal successors, (77), 7 states have internal predecessors, (77), 3 states have call successors, (25), 3 states have call predecessors, (25), 3 states have return successors, (23), 2 states have call predecessors, (23), 3 states have call successors, (23) [2022-07-21 09:44:38,248 INFO L276 IsEmpty]: Start isEmpty. Operand 367 states and 488 transitions. [2022-07-21 09:44:38,250 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2022-07-21 09:44:38,250 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 09:44:38,250 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 09:44:38,275 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-07-21 09:44:38,463 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-21 09:44:38,463 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 09:44:38,464 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 09:44:38,464 INFO L85 PathProgramCache]: Analyzing trace with hash -510156165, now seen corresponding path program 1 times [2022-07-21 09:44:38,464 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 09:44:38,464 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [509563826] [2022-07-21 09:44:38,464 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 09:44:38,464 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 09:44:38,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:44:38,720 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-21 09:44:38,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:44:38,726 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-07-21 09:44:38,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:44:38,737 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-21 09:44:38,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:44:38,745 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-07-21 09:44:38,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:44:38,762 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2022-07-21 09:44:38,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:44:38,773 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 09:44:38,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:44:38,789 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 09:44:38,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:44:38,800 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 09:44:38,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:44:38,806 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2022-07-21 09:44:38,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:44:38,812 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2022-07-21 09:44:38,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:44:38,819 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 09:44:38,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:44:38,824 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-07-21 09:44:38,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:44:38,840 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-07-21 09:44:38,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:44:38,852 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-21 09:44:38,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:44:38,860 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-07-21 09:44:38,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:44:38,866 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2022-07-21 09:44:38,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:44:38,871 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2022-07-21 09:44:38,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:44:38,877 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2022-07-21 09:44:38,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:44:38,882 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2022-07-21 09:44:38,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:44:38,888 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2022-07-21 09:44:38,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:44:38,893 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2022-07-21 09:44:38,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:44:38,899 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2022-07-21 09:44:38,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:44:38,906 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2022-07-21 09:44:38,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:44:38,922 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2022-07-21 09:44:38,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:44:38,956 INFO L134 CoverageAnalysis]: Checked inductivity of 157 backedges. 26 proven. 0 refuted. 0 times theorem prover too weak. 131 trivial. 0 not checked. [2022-07-21 09:44:38,957 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 09:44:38,957 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [509563826] [2022-07-21 09:44:38,957 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [509563826] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 09:44:38,957 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 09:44:38,958 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-07-21 09:44:38,958 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [173861053] [2022-07-21 09:44:38,958 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 09:44:38,959 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-21 09:44:38,959 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 09:44:38,960 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-21 09:44:38,960 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2022-07-21 09:44:38,960 INFO L87 Difference]: Start difference. First operand 367 states and 488 transitions. Second operand has 9 states, 8 states have (on average 9.375) internal successors, (75), 5 states have internal predecessors, (75), 3 states have call successors, (26), 5 states have call predecessors, (26), 3 states have return successors, (24), 3 states have call predecessors, (24), 2 states have call successors, (24) [2022-07-21 09:44:40,762 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 09:44:40,762 INFO L93 Difference]: Finished difference Result 733 states and 982 transitions. [2022-07-21 09:44:40,763 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-07-21 09:44:40,763 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 9.375) internal successors, (75), 5 states have internal predecessors, (75), 3 states have call successors, (26), 5 states have call predecessors, (26), 3 states have return successors, (24), 3 states have call predecessors, (24), 2 states have call successors, (24) Word has length 153 [2022-07-21 09:44:40,763 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 09:44:40,766 INFO L225 Difference]: With dead ends: 733 [2022-07-21 09:44:40,766 INFO L226 Difference]: Without dead ends: 419 [2022-07-21 09:44:40,767 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 47 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=52, Invalid=130, Unknown=0, NotChecked=0, Total=182 [2022-07-21 09:44:40,767 INFO L413 NwaCegarLoop]: 424 mSDtfsCounter, 433 mSDsluCounter, 1198 mSDsCounter, 0 mSdLazyCounter, 1410 mSolverCounterSat, 357 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 481 SdHoareTripleChecker+Valid, 1622 SdHoareTripleChecker+Invalid, 1767 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 357 IncrementalHoareTripleChecker+Valid, 1410 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2022-07-21 09:44:40,768 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [481 Valid, 1622 Invalid, 1767 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [357 Valid, 1410 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2022-07-21 09:44:40,769 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 419 states. [2022-07-21 09:44:40,791 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 419 to 369. [2022-07-21 09:44:40,792 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 369 states, 250 states have (on average 1.252) internal successors, (313), 252 states have internal predecessors, (313), 86 states have call successors, (86), 30 states have call predecessors, (86), 32 states have return successors, (95), 86 states have call predecessors, (95), 85 states have call successors, (95) [2022-07-21 09:44:40,794 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 369 states to 369 states and 494 transitions. [2022-07-21 09:44:40,795 INFO L78 Accepts]: Start accepts. Automaton has 369 states and 494 transitions. Word has length 153 [2022-07-21 09:44:40,796 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 09:44:40,796 INFO L495 AbstractCegarLoop]: Abstraction has 369 states and 494 transitions. [2022-07-21 09:44:40,797 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 9.375) internal successors, (75), 5 states have internal predecessors, (75), 3 states have call successors, (26), 5 states have call predecessors, (26), 3 states have return successors, (24), 3 states have call predecessors, (24), 2 states have call successors, (24) [2022-07-21 09:44:40,797 INFO L276 IsEmpty]: Start isEmpty. Operand 369 states and 494 transitions. [2022-07-21 09:44:40,798 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2022-07-21 09:44:40,798 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 09:44:40,798 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 09:44:40,799 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-07-21 09:44:40,799 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 09:44:40,799 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 09:44:40,799 INFO L85 PathProgramCache]: Analyzing trace with hash -1781778211, now seen corresponding path program 1 times [2022-07-21 09:44:40,800 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 09:44:40,800 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [15079236] [2022-07-21 09:44:40,800 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 09:44:40,800 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 09:44:41,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:44:42,046 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-21 09:44:42,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:44:42,055 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-07-21 09:44:42,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:44:42,062 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-21 09:44:42,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:44:42,071 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-07-21 09:44:42,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:44:42,100 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2022-07-21 09:44:42,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:44:42,114 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 09:44:42,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:44:42,137 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 09:44:42,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:44:42,152 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 09:44:42,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:44:42,183 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2022-07-21 09:44:42,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:44:42,190 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2022-07-21 09:44:42,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:44:42,199 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 09:44:42,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:44:42,206 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-07-21 09:44:42,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:44:42,222 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-07-21 09:44:42,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:44:42,235 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-21 09:44:42,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:44:42,243 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-07-21 09:44:42,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:44:42,251 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2022-07-21 09:44:42,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:44:42,257 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2022-07-21 09:44:42,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:44:42,265 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2022-07-21 09:44:42,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:44:42,271 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2022-07-21 09:44:42,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:44:42,279 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2022-07-21 09:44:42,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:44:42,293 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2022-07-21 09:44:42,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:44:42,300 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2022-07-21 09:44:42,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:44:42,307 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2022-07-21 09:44:42,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:44:42,325 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-21 09:44:42,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:44:42,335 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2022-07-21 09:44:42,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:44:42,343 INFO L134 CoverageAnalysis]: Checked inductivity of 165 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 165 trivial. 0 not checked. [2022-07-21 09:44:42,343 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 09:44:42,344 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [15079236] [2022-07-21 09:44:42,344 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [15079236] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 09:44:42,344 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 09:44:42,344 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-21 09:44:42,344 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [423647118] [2022-07-21 09:44:42,344 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 09:44:42,345 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-07-21 09:44:42,345 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 09:44:42,346 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-07-21 09:44:42,346 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2022-07-21 09:44:42,347 INFO L87 Difference]: Start difference. First operand 369 states and 494 transitions. Second operand has 8 states, 7 states have (on average 10.0) internal successors, (70), 4 states have internal predecessors, (70), 2 states have call successors, (26), 5 states have call predecessors, (26), 1 states have return successors, (24), 1 states have call predecessors, (24), 1 states have call successors, (24) [2022-07-21 09:44:44,778 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 09:44:44,779 INFO L93 Difference]: Finished difference Result 427 states and 573 transitions. [2022-07-21 09:44:44,779 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-07-21 09:44:44,779 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 10.0) internal successors, (70), 4 states have internal predecessors, (70), 2 states have call successors, (26), 5 states have call predecessors, (26), 1 states have return successors, (24), 1 states have call predecessors, (24), 1 states have call successors, (24) Word has length 158 [2022-07-21 09:44:44,780 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 09:44:44,782 INFO L225 Difference]: With dead ends: 427 [2022-07-21 09:44:44,783 INFO L226 Difference]: Without dead ends: 425 [2022-07-21 09:44:44,783 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 49 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=43, Invalid=89, Unknown=0, NotChecked=0, Total=132 [2022-07-21 09:44:44,784 INFO L413 NwaCegarLoop]: 435 mSDtfsCounter, 217 mSDsluCounter, 1070 mSDsCounter, 0 mSdLazyCounter, 1280 mSolverCounterSat, 121 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 256 SdHoareTripleChecker+Valid, 1505 SdHoareTripleChecker+Invalid, 1401 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 121 IncrementalHoareTripleChecker+Valid, 1280 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-07-21 09:44:44,784 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [256 Valid, 1505 Invalid, 1401 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [121 Valid, 1280 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2022-07-21 09:44:44,785 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 425 states. [2022-07-21 09:44:44,804 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 425 to 373. [2022-07-21 09:44:44,805 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 373 states, 253 states have (on average 1.2490118577075098) internal successors, (316), 255 states have internal predecessors, (316), 86 states have call successors, (86), 31 states have call predecessors, (86), 33 states have return successors, (95), 86 states have call predecessors, (95), 85 states have call successors, (95) [2022-07-21 09:44:44,807 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 373 states to 373 states and 497 transitions. [2022-07-21 09:44:44,808 INFO L78 Accepts]: Start accepts. Automaton has 373 states and 497 transitions. Word has length 158 [2022-07-21 09:44:44,808 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 09:44:44,809 INFO L495 AbstractCegarLoop]: Abstraction has 373 states and 497 transitions. [2022-07-21 09:44:44,809 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 10.0) internal successors, (70), 4 states have internal predecessors, (70), 2 states have call successors, (26), 5 states have call predecessors, (26), 1 states have return successors, (24), 1 states have call predecessors, (24), 1 states have call successors, (24) [2022-07-21 09:44:44,809 INFO L276 IsEmpty]: Start isEmpty. Operand 373 states and 497 transitions. [2022-07-21 09:44:44,812 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2022-07-21 09:44:44,812 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 09:44:44,812 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 09:44:44,812 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-07-21 09:44:44,812 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 09:44:44,813 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 09:44:44,813 INFO L85 PathProgramCache]: Analyzing trace with hash 655304915, now seen corresponding path program 1 times [2022-07-21 09:44:44,813 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 09:44:44,813 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [226742942] [2022-07-21 09:44:44,814 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 09:44:44,814 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 09:44:45,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:44:45,304 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-21 09:44:45,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:44:45,311 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-07-21 09:44:45,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:44:45,318 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-21 09:44:45,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:44:45,326 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-07-21 09:44:45,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:44:45,346 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2022-07-21 09:44:45,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:44:45,358 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 09:44:45,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:44:45,375 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 09:44:45,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:44:45,388 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 09:44:45,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:44:45,394 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2022-07-21 09:44:45,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:44:45,400 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2022-07-21 09:44:45,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:44:45,407 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 09:44:45,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:44:45,413 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-07-21 09:44:45,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:44:45,426 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-07-21 09:44:45,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:44:45,438 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-21 09:44:45,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:44:45,446 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-07-21 09:44:45,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:44:45,471 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2022-07-21 09:44:45,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:44:45,477 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2022-07-21 09:44:45,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:44:45,483 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2022-07-21 09:44:45,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:44:45,488 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2022-07-21 09:44:45,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:44:45,494 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2022-07-21 09:44:45,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:44:45,501 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2022-07-21 09:44:45,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:44:45,507 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2022-07-21 09:44:45,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:44:45,513 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2022-07-21 09:44:45,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:44:45,523 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-21 09:44:45,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:44:45,530 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2022-07-21 09:44:45,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:44:45,535 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2022-07-21 09:44:45,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:44:45,541 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2022-07-21 09:44:45,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:44:45,547 INFO L134 CoverageAnalysis]: Checked inductivity of 167 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 165 trivial. 0 not checked. [2022-07-21 09:44:45,548 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 09:44:45,548 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [226742942] [2022-07-21 09:44:45,548 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [226742942] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 09:44:45,548 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 09:44:45,548 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-21 09:44:45,549 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1749588688] [2022-07-21 09:44:45,549 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 09:44:45,549 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-07-21 09:44:45,549 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 09:44:45,550 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-07-21 09:44:45,550 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2022-07-21 09:44:45,551 INFO L87 Difference]: Start difference. First operand 373 states and 497 transitions. Second operand has 8 states, 7 states have (on average 11.285714285714286) internal successors, (79), 4 states have internal predecessors, (79), 2 states have call successors, (28), 5 states have call predecessors, (28), 1 states have return successors, (26), 1 states have call predecessors, (26), 1 states have call successors, (26) [2022-07-21 09:44:47,238 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 09:44:47,239 INFO L93 Difference]: Finished difference Result 433 states and 579 transitions. [2022-07-21 09:44:47,239 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-07-21 09:44:47,239 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 11.285714285714286) internal successors, (79), 4 states have internal predecessors, (79), 2 states have call successors, (28), 5 states have call predecessors, (28), 1 states have return successors, (26), 1 states have call predecessors, (26), 1 states have call successors, (26) Word has length 171 [2022-07-21 09:44:47,240 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 09:44:47,242 INFO L225 Difference]: With dead ends: 433 [2022-07-21 09:44:47,242 INFO L226 Difference]: Without dead ends: 431 [2022-07-21 09:44:47,243 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 53 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=43, Invalid=89, Unknown=0, NotChecked=0, Total=132 [2022-07-21 09:44:47,243 INFO L413 NwaCegarLoop]: 437 mSDtfsCounter, 325 mSDsluCounter, 1009 mSDsCounter, 0 mSdLazyCounter, 1190 mSolverCounterSat, 237 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 367 SdHoareTripleChecker+Valid, 1446 SdHoareTripleChecker+Invalid, 1427 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 237 IncrementalHoareTripleChecker+Valid, 1190 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2022-07-21 09:44:47,243 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [367 Valid, 1446 Invalid, 1427 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [237 Valid, 1190 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2022-07-21 09:44:47,244 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 431 states. [2022-07-21 09:44:47,260 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 431 to 378. [2022-07-21 09:44:47,261 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 378 states, 256 states have (on average 1.24609375) internal successors, (319), 259 states have internal predecessors, (319), 87 states have call successors, (87), 32 states have call predecessors, (87), 34 states have return successors, (96), 86 states have call predecessors, (96), 86 states have call successors, (96) [2022-07-21 09:44:47,263 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 378 states to 378 states and 502 transitions. [2022-07-21 09:44:47,264 INFO L78 Accepts]: Start accepts. Automaton has 378 states and 502 transitions. Word has length 171 [2022-07-21 09:44:47,264 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 09:44:47,264 INFO L495 AbstractCegarLoop]: Abstraction has 378 states and 502 transitions. [2022-07-21 09:44:47,264 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 11.285714285714286) internal successors, (79), 4 states have internal predecessors, (79), 2 states have call successors, (28), 5 states have call predecessors, (28), 1 states have return successors, (26), 1 states have call predecessors, (26), 1 states have call successors, (26) [2022-07-21 09:44:47,264 INFO L276 IsEmpty]: Start isEmpty. Operand 378 states and 502 transitions. [2022-07-21 09:44:47,266 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2022-07-21 09:44:47,266 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 09:44:47,266 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 09:44:47,266 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-07-21 09:44:47,267 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 09:44:47,267 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 09:44:47,267 INFO L85 PathProgramCache]: Analyzing trace with hash 657151957, now seen corresponding path program 1 times [2022-07-21 09:44:47,267 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 09:44:47,267 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [203870865] [2022-07-21 09:44:47,268 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 09:44:47,268 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 09:44:47,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:44:47,840 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-21 09:44:47,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:44:47,857 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-07-21 09:44:47,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:44:47,864 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-21 09:44:47,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:44:47,871 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-07-21 09:44:47,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:44:47,907 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2022-07-21 09:44:47,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:44:47,918 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 09:44:47,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:44:47,935 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 09:44:47,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:44:47,951 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 09:44:47,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:44:47,957 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2022-07-21 09:44:47,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:44:47,963 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2022-07-21 09:44:47,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:44:47,972 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 09:44:47,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:44:47,978 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-07-21 09:44:47,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:44:48,024 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-07-21 09:44:48,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:44:48,041 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-21 09:44:48,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:44:48,050 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-07-21 09:44:48,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:44:48,056 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2022-07-21 09:44:48,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:44:48,063 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2022-07-21 09:44:48,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:44:48,070 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2022-07-21 09:44:48,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:44:48,076 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2022-07-21 09:44:48,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:44:48,084 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2022-07-21 09:44:48,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:44:48,090 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2022-07-21 09:44:48,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:44:48,097 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2022-07-21 09:44:48,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:44:48,104 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2022-07-21 09:44:48,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:44:48,117 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-21 09:44:48,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:44:48,125 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2022-07-21 09:44:48,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:44:48,132 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2022-07-21 09:44:48,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:44:48,139 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2022-07-21 09:44:48,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:44:48,146 INFO L134 CoverageAnalysis]: Checked inductivity of 167 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 165 trivial. 0 not checked. [2022-07-21 09:44:48,146 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 09:44:48,146 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [203870865] [2022-07-21 09:44:48,147 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [203870865] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 09:44:48,147 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 09:44:48,147 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-21 09:44:48,147 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1563181597] [2022-07-21 09:44:48,147 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 09:44:48,148 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-07-21 09:44:48,148 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 09:44:48,149 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-07-21 09:44:48,149 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2022-07-21 09:44:48,149 INFO L87 Difference]: Start difference. First operand 378 states and 502 transitions. Second operand has 8 states, 7 states have (on average 11.285714285714286) internal successors, (79), 4 states have internal predecessors, (79), 2 states have call successors, (28), 5 states have call predecessors, (28), 1 states have return successors, (26), 1 states have call predecessors, (26), 1 states have call successors, (26) [2022-07-21 09:44:49,865 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 09:44:49,866 INFO L93 Difference]: Finished difference Result 436 states and 581 transitions. [2022-07-21 09:44:49,866 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-07-21 09:44:49,866 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 11.285714285714286) internal successors, (79), 4 states have internal predecessors, (79), 2 states have call successors, (28), 5 states have call predecessors, (28), 1 states have return successors, (26), 1 states have call predecessors, (26), 1 states have call successors, (26) Word has length 171 [2022-07-21 09:44:49,867 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 09:44:49,870 INFO L225 Difference]: With dead ends: 436 [2022-07-21 09:44:49,870 INFO L226 Difference]: Without dead ends: 434 [2022-07-21 09:44:49,870 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 53 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=43, Invalid=89, Unknown=0, NotChecked=0, Total=132 [2022-07-21 09:44:49,871 INFO L413 NwaCegarLoop]: 437 mSDtfsCounter, 438 mSDsluCounter, 982 mSDsCounter, 0 mSdLazyCounter, 1112 mSolverCounterSat, 351 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 479 SdHoareTripleChecker+Valid, 1419 SdHoareTripleChecker+Invalid, 1463 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 351 IncrementalHoareTripleChecker+Valid, 1112 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2022-07-21 09:44:49,871 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [479 Valid, 1419 Invalid, 1463 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [351 Valid, 1112 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2022-07-21 09:44:49,872 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 434 states. [2022-07-21 09:44:49,889 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 434 to 377. [2022-07-21 09:44:49,890 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 377 states, 256 states have (on average 1.24609375) internal successors, (319), 258 states have internal predecessors, (319), 86 states have call successors, (86), 32 states have call predecessors, (86), 34 states have return successors, (95), 86 states have call predecessors, (95), 85 states have call successors, (95) [2022-07-21 09:44:49,892 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 377 states to 377 states and 500 transitions. [2022-07-21 09:44:49,892 INFO L78 Accepts]: Start accepts. Automaton has 377 states and 500 transitions. Word has length 171 [2022-07-21 09:44:49,893 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 09:44:49,893 INFO L495 AbstractCegarLoop]: Abstraction has 377 states and 500 transitions. [2022-07-21 09:44:49,893 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 11.285714285714286) internal successors, (79), 4 states have internal predecessors, (79), 2 states have call successors, (28), 5 states have call predecessors, (28), 1 states have return successors, (26), 1 states have call predecessors, (26), 1 states have call successors, (26) [2022-07-21 09:44:49,893 INFO L276 IsEmpty]: Start isEmpty. Operand 377 states and 500 transitions. [2022-07-21 09:44:49,895 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 178 [2022-07-21 09:44:49,895 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 09:44:49,895 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 09:44:49,895 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-07-21 09:44:49,896 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 09:44:49,896 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 09:44:49,896 INFO L85 PathProgramCache]: Analyzing trace with hash 220397050, now seen corresponding path program 1 times [2022-07-21 09:44:49,896 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 09:44:49,897 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [989373642] [2022-07-21 09:44:49,897 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 09:44:49,897 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 09:44:50,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:44:50,117 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-21 09:44:50,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:44:50,123 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-07-21 09:44:50,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:44:50,129 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-21 09:44:50,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:44:50,136 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-07-21 09:44:50,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:44:50,157 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2022-07-21 09:44:50,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:44:50,168 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 09:44:50,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:44:50,211 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 09:44:50,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:44:50,226 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 09:44:50,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:44:50,236 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2022-07-21 09:44:50,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:44:50,242 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2022-07-21 09:44:50,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:44:50,249 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 09:44:50,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:44:50,255 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-07-21 09:44:50,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:44:50,267 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-07-21 09:44:50,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:44:50,278 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-21 09:44:50,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:44:50,284 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-07-21 09:44:50,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:44:50,289 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2022-07-21 09:44:50,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:44:50,294 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2022-07-21 09:44:50,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:44:50,298 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2022-07-21 09:44:50,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:44:50,304 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2022-07-21 09:44:50,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:44:50,309 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2022-07-21 09:44:50,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:44:50,314 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2022-07-21 09:44:50,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:44:50,319 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2022-07-21 09:44:50,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:44:50,323 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2022-07-21 09:44:50,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:44:50,339 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 09:44:50,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:44:50,352 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-21 09:44:50,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:44:50,359 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-07-21 09:44:50,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:44:50,377 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2022-07-21 09:44:50,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:44:50,390 INFO L134 CoverageAnalysis]: Checked inductivity of 165 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 165 trivial. 0 not checked. [2022-07-21 09:44:50,390 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 09:44:50,391 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [989373642] [2022-07-21 09:44:50,391 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [989373642] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 09:44:50,391 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 09:44:50,391 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-07-21 09:44:50,391 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [421267384] [2022-07-21 09:44:50,391 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 09:44:50,393 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-07-21 09:44:50,393 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 09:44:50,393 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-07-21 09:44:50,394 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2022-07-21 09:44:50,394 INFO L87 Difference]: Start difference. First operand 377 states and 500 transitions. Second operand has 11 states, 11 states have (on average 7.818181818181818) internal successors, (86), 7 states have internal predecessors, (86), 3 states have call successors, (27), 6 states have call predecessors, (27), 1 states have return successors, (26), 3 states have call predecessors, (26), 3 states have call successors, (26) [2022-07-21 09:44:53,786 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 09:44:53,787 INFO L93 Difference]: Finished difference Result 815 states and 1116 transitions. [2022-07-21 09:44:53,787 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-07-21 09:44:53,787 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 7.818181818181818) internal successors, (86), 7 states have internal predecessors, (86), 3 states have call successors, (27), 6 states have call predecessors, (27), 1 states have return successors, (26), 3 states have call predecessors, (26), 3 states have call successors, (26) Word has length 177 [2022-07-21 09:44:53,788 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 09:44:53,791 INFO L225 Difference]: With dead ends: 815 [2022-07-21 09:44:53,791 INFO L226 Difference]: Without dead ends: 515 [2022-07-21 09:44:53,792 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 71 GetRequests, 54 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=72, Invalid=270, Unknown=0, NotChecked=0, Total=342 [2022-07-21 09:44:53,792 INFO L413 NwaCegarLoop]: 482 mSDtfsCounter, 999 mSDsluCounter, 1575 mSDsCounter, 0 mSdLazyCounter, 2042 mSolverCounterSat, 701 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1051 SdHoareTripleChecker+Valid, 2057 SdHoareTripleChecker+Invalid, 2743 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 701 IncrementalHoareTripleChecker+Valid, 2042 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.2s IncrementalHoareTripleChecker+Time [2022-07-21 09:44:53,793 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1051 Valid, 2057 Invalid, 2743 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [701 Valid, 2042 Invalid, 0 Unknown, 0 Unchecked, 3.2s Time] [2022-07-21 09:44:53,793 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 515 states. [2022-07-21 09:44:53,813 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 515 to 381. [2022-07-21 09:44:53,814 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 381 states, 259 states have (on average 1.2432432432432432) internal successors, (322), 261 states have internal predecessors, (322), 87 states have call successors, (87), 32 states have call predecessors, (87), 34 states have return successors, (96), 87 states have call predecessors, (96), 86 states have call successors, (96) [2022-07-21 09:44:53,817 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 381 states to 381 states and 505 transitions. [2022-07-21 09:44:53,818 INFO L78 Accepts]: Start accepts. Automaton has 381 states and 505 transitions. Word has length 177 [2022-07-21 09:44:53,818 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 09:44:53,818 INFO L495 AbstractCegarLoop]: Abstraction has 381 states and 505 transitions. [2022-07-21 09:44:53,819 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 7.818181818181818) internal successors, (86), 7 states have internal predecessors, (86), 3 states have call successors, (27), 6 states have call predecessors, (27), 1 states have return successors, (26), 3 states have call predecessors, (26), 3 states have call successors, (26) [2022-07-21 09:44:53,819 INFO L276 IsEmpty]: Start isEmpty. Operand 381 states and 505 transitions. [2022-07-21 09:44:53,821 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 178 [2022-07-21 09:44:53,821 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 09:44:53,821 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 09:44:53,821 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-07-21 09:44:53,821 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 09:44:53,822 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 09:44:53,822 INFO L85 PathProgramCache]: Analyzing trace with hash -597251400, now seen corresponding path program 1 times [2022-07-21 09:44:53,822 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 09:44:53,822 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1589104103] [2022-07-21 09:44:53,822 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 09:44:53,822 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 09:44:53,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:44:54,099 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-21 09:44:54,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:44:54,105 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-07-21 09:44:54,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:44:54,111 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-21 09:44:54,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:44:54,116 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-07-21 09:44:54,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:44:54,133 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2022-07-21 09:44:54,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:44:54,146 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 09:44:54,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:44:54,160 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 09:44:54,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:44:54,171 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 09:44:54,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:44:54,177 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2022-07-21 09:44:54,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:44:54,182 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2022-07-21 09:44:54,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:44:54,189 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 09:44:54,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:44:54,195 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-07-21 09:44:54,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:44:54,207 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-07-21 09:44:54,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:44:54,227 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-21 09:44:54,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:44:54,234 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-07-21 09:44:54,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:44:54,239 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2022-07-21 09:44:54,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:44:54,251 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2022-07-21 09:44:54,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:44:54,259 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2022-07-21 09:44:54,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:44:54,264 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2022-07-21 09:44:54,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:44:54,270 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2022-07-21 09:44:54,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:44:54,275 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2022-07-21 09:44:54,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:44:54,289 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2022-07-21 09:44:54,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:44:54,295 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2022-07-21 09:44:54,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:44:54,306 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 09:44:54,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:44:54,318 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-21 09:44:54,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:44:54,325 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-07-21 09:44:54,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:44:54,341 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2022-07-21 09:44:54,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:44:54,372 INFO L134 CoverageAnalysis]: Checked inductivity of 165 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 165 trivial. 0 not checked. [2022-07-21 09:44:54,372 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 09:44:54,372 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1589104103] [2022-07-21 09:44:54,373 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1589104103] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 09:44:54,373 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 09:44:54,373 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-07-21 09:44:54,374 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1915616776] [2022-07-21 09:44:54,375 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 09:44:54,375 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-21 09:44:54,376 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 09:44:54,376 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-21 09:44:54,376 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2022-07-21 09:44:54,376 INFO L87 Difference]: Start difference. First operand 381 states and 505 transitions. Second operand has 9 states, 9 states have (on average 9.555555555555555) internal successors, (86), 4 states have internal predecessors, (86), 2 states have call successors, (27), 6 states have call predecessors, (27), 2 states have return successors, (26), 2 states have call predecessors, (26), 1 states have call successors, (26) [2022-07-21 09:44:57,606 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 09:44:57,606 INFO L93 Difference]: Finished difference Result 570 states and 782 transitions. [2022-07-21 09:44:57,606 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-07-21 09:44:57,606 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 9.555555555555555) internal successors, (86), 4 states have internal predecessors, (86), 2 states have call successors, (27), 6 states have call predecessors, (27), 2 states have return successors, (26), 2 states have call predecessors, (26), 1 states have call successors, (26) Word has length 177 [2022-07-21 09:44:57,607 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 09:44:57,609 INFO L225 Difference]: With dead ends: 570 [2022-07-21 09:44:57,609 INFO L226 Difference]: Without dead ends: 513 [2022-07-21 09:44:57,610 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 54 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=117, Unknown=0, NotChecked=0, Total=156 [2022-07-21 09:44:57,610 INFO L413 NwaCegarLoop]: 527 mSDtfsCounter, 415 mSDsluCounter, 1440 mSDsCounter, 0 mSdLazyCounter, 1472 mSolverCounterSat, 274 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 482 SdHoareTripleChecker+Valid, 1967 SdHoareTripleChecker+Invalid, 1746 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 274 IncrementalHoareTripleChecker+Valid, 1472 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.1s IncrementalHoareTripleChecker+Time [2022-07-21 09:44:57,611 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [482 Valid, 1967 Invalid, 1746 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [274 Valid, 1472 Invalid, 0 Unknown, 0 Unchecked, 3.1s Time] [2022-07-21 09:44:57,612 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 513 states. [2022-07-21 09:44:57,629 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 513 to 385. [2022-07-21 09:44:57,630 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 385 states, 262 states have (on average 1.2404580152671756) internal successors, (325), 264 states have internal predecessors, (325), 87 states have call successors, (87), 32 states have call predecessors, (87), 35 states have return successors, (97), 88 states have call predecessors, (97), 86 states have call successors, (97) [2022-07-21 09:44:57,632 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 385 states to 385 states and 509 transitions. [2022-07-21 09:44:57,632 INFO L78 Accepts]: Start accepts. Automaton has 385 states and 509 transitions. Word has length 177 [2022-07-21 09:44:57,632 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 09:44:57,633 INFO L495 AbstractCegarLoop]: Abstraction has 385 states and 509 transitions. [2022-07-21 09:44:57,633 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 9.555555555555555) internal successors, (86), 4 states have internal predecessors, (86), 2 states have call successors, (27), 6 states have call predecessors, (27), 2 states have return successors, (26), 2 states have call predecessors, (26), 1 states have call successors, (26) [2022-07-21 09:44:57,633 INFO L276 IsEmpty]: Start isEmpty. Operand 385 states and 509 transitions. [2022-07-21 09:44:57,634 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 180 [2022-07-21 09:44:57,635 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 09:44:57,635 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 09:44:57,635 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-07-21 09:44:57,635 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 09:44:57,635 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 09:44:57,636 INFO L85 PathProgramCache]: Analyzing trace with hash -1081589820, now seen corresponding path program 1 times [2022-07-21 09:44:57,636 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 09:44:57,636 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1456189483] [2022-07-21 09:44:57,636 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 09:44:57,636 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 09:44:57,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:44:57,826 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-21 09:44:57,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:44:57,833 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-07-21 09:44:57,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:44:57,838 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-21 09:44:57,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:44:57,844 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-07-21 09:44:57,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:44:57,869 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2022-07-21 09:44:57,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:44:57,879 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 09:44:57,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:44:57,891 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 09:44:57,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:44:57,903 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 09:44:57,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:44:57,909 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2022-07-21 09:44:57,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:44:57,915 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2022-07-21 09:44:57,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:44:57,925 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 09:44:57,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:44:57,931 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-07-21 09:44:57,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:44:57,943 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-07-21 09:44:57,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:44:57,954 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-21 09:44:57,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:44:57,964 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-07-21 09:44:57,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:44:57,969 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2022-07-21 09:44:57,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:44:57,974 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2022-07-21 09:44:57,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:44:57,986 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2022-07-21 09:44:57,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:44:57,991 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2022-07-21 09:44:57,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:44:57,996 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2022-07-21 09:44:57,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:44:58,001 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2022-07-21 09:44:58,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:44:58,007 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2022-07-21 09:44:58,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:44:58,013 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2022-07-21 09:44:58,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:44:58,024 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 09:44:58,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:44:58,034 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-21 09:44:58,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:44:58,041 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-07-21 09:44:58,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:44:58,055 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2022-07-21 09:44:58,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:44:58,076 INFO L134 CoverageAnalysis]: Checked inductivity of 165 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 165 trivial. 0 not checked. [2022-07-21 09:44:58,077 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 09:44:58,077 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1456189483] [2022-07-21 09:44:58,077 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1456189483] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 09:44:58,077 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 09:44:58,077 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-21 09:44:58,078 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [954750770] [2022-07-21 09:44:58,078 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 09:44:58,079 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-21 09:44:58,079 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 09:44:58,079 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-21 09:44:58,079 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2022-07-21 09:44:58,080 INFO L87 Difference]: Start difference. First operand 385 states and 509 transitions. Second operand has 7 states, 7 states have (on average 12.571428571428571) internal successors, (88), 3 states have internal predecessors, (88), 2 states have call successors, (27), 6 states have call predecessors, (27), 2 states have return successors, (26), 2 states have call predecessors, (26), 1 states have call successors, (26) [2022-07-21 09:45:00,660 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 09:45:00,660 INFO L93 Difference]: Finished difference Result 691 states and 922 transitions. [2022-07-21 09:45:00,660 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-07-21 09:45:00,661 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 12.571428571428571) internal successors, (88), 3 states have internal predecessors, (88), 2 states have call successors, (27), 6 states have call predecessors, (27), 2 states have return successors, (26), 2 states have call predecessors, (26), 1 states have call successors, (26) Word has length 179 [2022-07-21 09:45:00,661 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 09:45:00,664 INFO L225 Difference]: With dead ends: 691 [2022-07-21 09:45:00,664 INFO L226 Difference]: Without dead ends: 462 [2022-07-21 09:45:00,665 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 54 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2022-07-21 09:45:00,666 INFO L413 NwaCegarLoop]: 455 mSDtfsCounter, 472 mSDsluCounter, 673 mSDsCounter, 0 mSdLazyCounter, 784 mSolverCounterSat, 392 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 520 SdHoareTripleChecker+Valid, 1128 SdHoareTripleChecker+Invalid, 1176 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 392 IncrementalHoareTripleChecker+Valid, 784 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2022-07-21 09:45:00,666 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [520 Valid, 1128 Invalid, 1176 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [392 Valid, 784 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2022-07-21 09:45:00,668 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 462 states. [2022-07-21 09:45:00,690 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 462 to 386. [2022-07-21 09:45:00,691 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 386 states, 263 states have (on average 1.2395437262357414) internal successors, (326), 265 states have internal predecessors, (326), 87 states have call successors, (87), 32 states have call predecessors, (87), 35 states have return successors, (97), 88 states have call predecessors, (97), 86 states have call successors, (97) [2022-07-21 09:45:00,693 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 386 states to 386 states and 510 transitions. [2022-07-21 09:45:00,693 INFO L78 Accepts]: Start accepts. Automaton has 386 states and 510 transitions. Word has length 179 [2022-07-21 09:45:00,693 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 09:45:00,694 INFO L495 AbstractCegarLoop]: Abstraction has 386 states and 510 transitions. [2022-07-21 09:45:00,694 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 12.571428571428571) internal successors, (88), 3 states have internal predecessors, (88), 2 states have call successors, (27), 6 states have call predecessors, (27), 2 states have return successors, (26), 2 states have call predecessors, (26), 1 states have call successors, (26) [2022-07-21 09:45:00,694 INFO L276 IsEmpty]: Start isEmpty. Operand 386 states and 510 transitions. [2022-07-21 09:45:00,696 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 187 [2022-07-21 09:45:00,696 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 09:45:00,696 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 09:45:00,696 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-07-21 09:45:00,697 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 09:45:00,697 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 09:45:00,697 INFO L85 PathProgramCache]: Analyzing trace with hash -517004810, now seen corresponding path program 1 times [2022-07-21 09:45:00,697 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 09:45:00,698 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [530900339] [2022-07-21 09:45:00,698 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 09:45:00,698 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 09:45:00,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:45:00,986 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-21 09:45:00,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:45:00,994 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-07-21 09:45:00,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:45:01,001 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-21 09:45:01,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:45:01,008 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-07-21 09:45:01,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:45:01,029 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2022-07-21 09:45:01,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:45:01,042 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 09:45:01,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:45:01,059 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 09:45:01,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:45:01,074 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 09:45:01,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:45:01,079 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2022-07-21 09:45:01,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:45:01,085 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2022-07-21 09:45:01,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:45:01,091 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 09:45:01,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:45:01,097 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-07-21 09:45:01,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:45:01,109 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-07-21 09:45:01,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:45:01,120 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-21 09:45:01,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:45:01,126 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-07-21 09:45:01,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:45:01,132 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2022-07-21 09:45:01,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:45:01,138 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2022-07-21 09:45:01,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:45:01,143 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2022-07-21 09:45:01,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:45:01,148 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2022-07-21 09:45:01,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:45:01,154 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2022-07-21 09:45:01,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:45:01,161 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2022-07-21 09:45:01,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:45:01,167 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2022-07-21 09:45:01,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:45:01,172 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2022-07-21 09:45:01,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:45:01,223 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 09:45:01,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:45:01,242 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-21 09:45:01,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:45:01,248 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-07-21 09:45:01,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:45:01,255 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2022-07-21 09:45:01,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:45:01,262 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2022-07-21 09:45:01,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:45:01,269 INFO L134 CoverageAnalysis]: Checked inductivity of 209 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 209 trivial. 0 not checked. [2022-07-21 09:45:01,269 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 09:45:01,269 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [530900339] [2022-07-21 09:45:01,269 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [530900339] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 09:45:01,270 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 09:45:01,270 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-07-21 09:45:01,270 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1824815496] [2022-07-21 09:45:01,270 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 09:45:01,270 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-07-21 09:45:01,271 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 09:45:01,271 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-07-21 09:45:01,271 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=155, Unknown=0, NotChecked=0, Total=182 [2022-07-21 09:45:01,272 INFO L87 Difference]: Start difference. First operand 386 states and 510 transitions. Second operand has 14 states, 14 states have (on average 6.0) internal successors, (84), 8 states have internal predecessors, (84), 6 states have call successors, (32), 8 states have call predecessors, (32), 2 states have return successors, (27), 4 states have call predecessors, (27), 3 states have call successors, (27) [2022-07-21 09:45:03,682 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 09:45:03,682 INFO L93 Difference]: Finished difference Result 839 states and 1140 transitions. [2022-07-21 09:45:03,683 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-07-21 09:45:03,683 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 6.0) internal successors, (84), 8 states have internal predecessors, (84), 6 states have call successors, (32), 8 states have call predecessors, (32), 2 states have return successors, (27), 4 states have call predecessors, (27), 3 states have call successors, (27) Word has length 186 [2022-07-21 09:45:03,684 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 09:45:03,686 INFO L225 Difference]: With dead ends: 839 [2022-07-21 09:45:03,686 INFO L226 Difference]: Without dead ends: 546 [2022-07-21 09:45:03,688 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 76 GetRequests, 54 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 49 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=104, Invalid=448, Unknown=0, NotChecked=0, Total=552 [2022-07-21 09:45:03,688 INFO L413 NwaCegarLoop]: 482 mSDtfsCounter, 531 mSDsluCounter, 2800 mSDsCounter, 0 mSdLazyCounter, 2974 mSolverCounterSat, 305 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 585 SdHoareTripleChecker+Valid, 3282 SdHoareTripleChecker+Invalid, 3279 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 305 IncrementalHoareTripleChecker+Valid, 2974 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2022-07-21 09:45:03,689 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [585 Valid, 3282 Invalid, 3279 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [305 Valid, 2974 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2022-07-21 09:45:03,689 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 546 states. [2022-07-21 09:45:03,713 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 546 to 435. [2022-07-21 09:45:03,714 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 435 states, 299 states have (on average 1.2508361204013378) internal successors, (374), 302 states have internal predecessors, (374), 95 states have call successors, (95), 35 states have call predecessors, (95), 40 states have return successors, (110), 97 states have call predecessors, (110), 94 states have call successors, (110) [2022-07-21 09:45:03,717 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 435 states to 435 states and 579 transitions. [2022-07-21 09:45:03,717 INFO L78 Accepts]: Start accepts. Automaton has 435 states and 579 transitions. Word has length 186 [2022-07-21 09:45:03,718 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 09:45:03,718 INFO L495 AbstractCegarLoop]: Abstraction has 435 states and 579 transitions. [2022-07-21 09:45:03,719 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 6.0) internal successors, (84), 8 states have internal predecessors, (84), 6 states have call successors, (32), 8 states have call predecessors, (32), 2 states have return successors, (27), 4 states have call predecessors, (27), 3 states have call successors, (27) [2022-07-21 09:45:03,719 INFO L276 IsEmpty]: Start isEmpty. Operand 435 states and 579 transitions. [2022-07-21 09:45:03,720 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 184 [2022-07-21 09:45:03,721 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 09:45:03,721 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 09:45:03,721 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-07-21 09:45:03,721 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 09:45:03,722 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 09:45:03,722 INFO L85 PathProgramCache]: Analyzing trace with hash 1186597298, now seen corresponding path program 1 times [2022-07-21 09:45:03,722 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 09:45:03,722 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2023478078] [2022-07-21 09:45:03,722 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 09:45:03,722 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 09:45:03,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:45:03,933 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-21 09:45:03,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:45:03,939 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-07-21 09:45:03,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:45:03,945 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-21 09:45:03,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:45:03,951 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-07-21 09:45:03,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:45:03,971 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2022-07-21 09:45:03,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:45:03,981 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 09:45:03,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:45:03,997 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 09:45:03,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:45:04,009 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 09:45:04,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:45:04,017 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2022-07-21 09:45:04,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:45:04,022 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2022-07-21 09:45:04,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:45:04,029 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 09:45:04,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:45:04,035 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-07-21 09:45:04,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:45:04,049 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-07-21 09:45:04,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:45:04,060 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-21 09:45:04,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:45:04,067 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-07-21 09:45:04,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:45:04,073 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2022-07-21 09:45:04,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:45:04,079 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2022-07-21 09:45:04,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:45:04,085 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2022-07-21 09:45:04,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:45:04,091 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2022-07-21 09:45:04,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:45:04,098 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2022-07-21 09:45:04,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:45:04,104 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2022-07-21 09:45:04,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:45:04,110 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2022-07-21 09:45:04,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:45:04,117 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2022-07-21 09:45:04,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:45:04,136 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 09:45:04,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:45:04,150 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-21 09:45:04,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:45:04,157 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-07-21 09:45:04,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:45:04,174 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2022-07-21 09:45:04,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:45:04,232 INFO L134 CoverageAnalysis]: Checked inductivity of 165 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 165 trivial. 0 not checked. [2022-07-21 09:45:04,233 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 09:45:04,233 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2023478078] [2022-07-21 09:45:04,233 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2023478078] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 09:45:04,233 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 09:45:04,233 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-07-21 09:45:04,233 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [408125103] [2022-07-21 09:45:04,234 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 09:45:04,234 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-21 09:45:04,235 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 09:45:04,235 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-21 09:45:04,235 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2022-07-21 09:45:04,235 INFO L87 Difference]: Start difference. First operand 435 states and 579 transitions. Second operand has 9 states, 9 states have (on average 10.222222222222221) internal successors, (92), 5 states have internal predecessors, (92), 3 states have call successors, (27), 6 states have call predecessors, (27), 1 states have return successors, (26), 3 states have call predecessors, (26), 3 states have call successors, (26) [2022-07-21 09:45:07,461 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 09:45:07,461 INFO L93 Difference]: Finished difference Result 922 states and 1263 transitions. [2022-07-21 09:45:07,462 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-07-21 09:45:07,462 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 10.222222222222221) internal successors, (92), 5 states have internal predecessors, (92), 3 states have call successors, (27), 6 states have call predecessors, (27), 1 states have return successors, (26), 3 states have call predecessors, (26), 3 states have call successors, (26) Word has length 183 [2022-07-21 09:45:07,462 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 09:45:07,465 INFO L225 Difference]: With dead ends: 922 [2022-07-21 09:45:07,466 INFO L226 Difference]: Without dead ends: 574 [2022-07-21 09:45:07,467 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 54 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=162, Unknown=0, NotChecked=0, Total=210 [2022-07-21 09:45:07,467 INFO L413 NwaCegarLoop]: 533 mSDtfsCounter, 658 mSDsluCounter, 1274 mSDsCounter, 0 mSdLazyCounter, 1495 mSolverCounterSat, 459 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 722 SdHoareTripleChecker+Valid, 1807 SdHoareTripleChecker+Invalid, 1954 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 459 IncrementalHoareTripleChecker+Valid, 1495 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.1s IncrementalHoareTripleChecker+Time [2022-07-21 09:45:07,468 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [722 Valid, 1807 Invalid, 1954 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [459 Valid, 1495 Invalid, 0 Unknown, 0 Unchecked, 3.1s Time] [2022-07-21 09:45:07,468 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 574 states. [2022-07-21 09:45:07,490 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 574 to 429. [2022-07-21 09:45:07,490 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 429 states, 294 states have (on average 1.248299319727891) internal successors, (367), 298 states have internal predecessors, (367), 94 states have call successors, (94), 35 states have call predecessors, (94), 40 states have return successors, (108), 95 states have call predecessors, (108), 93 states have call successors, (108) [2022-07-21 09:45:07,492 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 429 states to 429 states and 569 transitions. [2022-07-21 09:45:07,493 INFO L78 Accepts]: Start accepts. Automaton has 429 states and 569 transitions. Word has length 183 [2022-07-21 09:45:07,493 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 09:45:07,493 INFO L495 AbstractCegarLoop]: Abstraction has 429 states and 569 transitions. [2022-07-21 09:45:07,493 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.222222222222221) internal successors, (92), 5 states have internal predecessors, (92), 3 states have call successors, (27), 6 states have call predecessors, (27), 1 states have return successors, (26), 3 states have call predecessors, (26), 3 states have call successors, (26) [2022-07-21 09:45:07,493 INFO L276 IsEmpty]: Start isEmpty. Operand 429 states and 569 transitions. [2022-07-21 09:45:07,495 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 184 [2022-07-21 09:45:07,495 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 09:45:07,495 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 09:45:07,496 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-07-21 09:45:07,496 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 09:45:07,496 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 09:45:07,496 INFO L85 PathProgramCache]: Analyzing trace with hash -1223849872, now seen corresponding path program 1 times [2022-07-21 09:45:07,496 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 09:45:07,497 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [642807465] [2022-07-21 09:45:07,497 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 09:45:07,497 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 09:45:07,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:45:07,737 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-21 09:45:07,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:45:07,743 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-07-21 09:45:07,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:45:07,748 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-21 09:45:07,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:45:07,754 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-07-21 09:45:07,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:45:07,771 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2022-07-21 09:45:07,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:45:07,781 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 09:45:07,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:45:07,795 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 09:45:07,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:45:07,806 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 09:45:07,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:45:07,813 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2022-07-21 09:45:07,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:45:07,818 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2022-07-21 09:45:07,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:45:07,824 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 09:45:07,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:45:07,830 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-07-21 09:45:07,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:45:07,841 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-07-21 09:45:07,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:45:07,853 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-21 09:45:07,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:45:07,859 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-07-21 09:45:07,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:45:07,865 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2022-07-21 09:45:07,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:45:07,871 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2022-07-21 09:45:07,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:45:07,876 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2022-07-21 09:45:07,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:45:07,881 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2022-07-21 09:45:07,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:45:07,886 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2022-07-21 09:45:07,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:45:07,891 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2022-07-21 09:45:07,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:45:07,934 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2022-07-21 09:45:07,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:45:07,943 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2022-07-21 09:45:07,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:45:07,954 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 09:45:07,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:45:07,964 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-21 09:45:07,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:45:07,970 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-07-21 09:45:07,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:45:07,985 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2022-07-21 09:45:07,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:45:08,049 INFO L134 CoverageAnalysis]: Checked inductivity of 165 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 165 trivial. 0 not checked. [2022-07-21 09:45:08,050 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 09:45:08,050 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [642807465] [2022-07-21 09:45:08,050 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [642807465] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 09:45:08,050 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 09:45:08,050 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-07-21 09:45:08,050 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1076996686] [2022-07-21 09:45:08,051 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 09:45:08,051 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-07-21 09:45:08,051 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 09:45:08,052 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-07-21 09:45:08,052 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2022-07-21 09:45:08,052 INFO L87 Difference]: Start difference. First operand 429 states and 569 transitions. Second operand has 11 states, 11 states have (on average 8.363636363636363) internal successors, (92), 6 states have internal predecessors, (92), 2 states have call successors, (27), 6 states have call predecessors, (27), 2 states have return successors, (26), 2 states have call predecessors, (26), 1 states have call successors, (26) [2022-07-21 09:45:12,001 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 09:45:12,001 INFO L93 Difference]: Finished difference Result 630 states and 860 transitions. [2022-07-21 09:45:12,002 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-21 09:45:12,002 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 8.363636363636363) internal successors, (92), 6 states have internal predecessors, (92), 2 states have call successors, (27), 6 states have call predecessors, (27), 2 states have return successors, (26), 2 states have call predecessors, (26), 1 states have call successors, (26) Word has length 183 [2022-07-21 09:45:12,002 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 09:45:12,005 INFO L225 Difference]: With dead ends: 630 [2022-07-21 09:45:12,005 INFO L226 Difference]: Without dead ends: 573 [2022-07-21 09:45:12,006 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 70 GetRequests, 53 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=79, Invalid=263, Unknown=0, NotChecked=0, Total=342 [2022-07-21 09:45:12,007 INFO L413 NwaCegarLoop]: 537 mSDtfsCounter, 543 mSDsluCounter, 2147 mSDsCounter, 0 mSdLazyCounter, 2096 mSolverCounterSat, 395 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 609 SdHoareTripleChecker+Valid, 2684 SdHoareTripleChecker+Invalid, 2491 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 395 IncrementalHoareTripleChecker+Valid, 2096 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.8s IncrementalHoareTripleChecker+Time [2022-07-21 09:45:12,007 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [609 Valid, 2684 Invalid, 2491 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [395 Valid, 2096 Invalid, 0 Unknown, 0 Unchecked, 3.8s Time] [2022-07-21 09:45:12,008 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 573 states. [2022-07-21 09:45:12,029 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 573 to 437. [2022-07-21 09:45:12,030 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 437 states, 302 states have (on average 1.2483443708609272) internal successors, (377), 306 states have internal predecessors, (377), 94 states have call successors, (94), 35 states have call predecessors, (94), 40 states have return successors, (108), 95 states have call predecessors, (108), 93 states have call successors, (108) [2022-07-21 09:45:12,031 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 437 states to 437 states and 579 transitions. [2022-07-21 09:45:12,031 INFO L78 Accepts]: Start accepts. Automaton has 437 states and 579 transitions. Word has length 183 [2022-07-21 09:45:12,032 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 09:45:12,032 INFO L495 AbstractCegarLoop]: Abstraction has 437 states and 579 transitions. [2022-07-21 09:45:12,032 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 8.363636363636363) internal successors, (92), 6 states have internal predecessors, (92), 2 states have call successors, (27), 6 states have call predecessors, (27), 2 states have return successors, (26), 2 states have call predecessors, (26), 1 states have call successors, (26) [2022-07-21 09:45:12,032 INFO L276 IsEmpty]: Start isEmpty. Operand 437 states and 579 transitions. [2022-07-21 09:45:12,034 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 188 [2022-07-21 09:45:12,034 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 09:45:12,034 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 09:45:12,034 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-07-21 09:45:12,034 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 09:45:12,035 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 09:45:12,035 INFO L85 PathProgramCache]: Analyzing trace with hash -1686982824, now seen corresponding path program 1 times [2022-07-21 09:45:12,035 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 09:45:12,035 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1990787880] [2022-07-21 09:45:12,035 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 09:45:12,036 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 09:45:12,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:45:12,211 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-21 09:45:12,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:45:12,217 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-07-21 09:45:12,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:45:12,222 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-21 09:45:12,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:45:12,229 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-07-21 09:45:12,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:45:12,247 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2022-07-21 09:45:12,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:45:12,256 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 09:45:12,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:45:12,269 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 09:45:12,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:45:12,279 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 09:45:12,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:45:12,285 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2022-07-21 09:45:12,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:45:12,290 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2022-07-21 09:45:12,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:45:12,296 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 09:45:12,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:45:12,301 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-07-21 09:45:12,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:45:12,346 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-07-21 09:45:12,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:45:12,359 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-21 09:45:12,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:45:12,368 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-07-21 09:45:12,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:45:12,374 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2022-07-21 09:45:12,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:45:12,378 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2022-07-21 09:45:12,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:45:12,383 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2022-07-21 09:45:12,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:45:12,388 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2022-07-21 09:45:12,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:45:12,393 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2022-07-21 09:45:12,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:45:12,398 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2022-07-21 09:45:12,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:45:12,403 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2022-07-21 09:45:12,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:45:12,408 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2022-07-21 09:45:12,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:45:12,418 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 09:45:12,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:45:12,432 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-21 09:45:12,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:45:12,437 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-07-21 09:45:12,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:45:12,452 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2022-07-21 09:45:12,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:45:12,465 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2022-07-21 09:45:12,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:45:12,492 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 09:45:12,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:45:12,509 INFO L134 CoverageAnalysis]: Checked inductivity of 165 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 165 trivial. 0 not checked. [2022-07-21 09:45:12,510 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 09:45:12,510 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1990787880] [2022-07-21 09:45:12,511 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1990787880] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 09:45:12,511 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 09:45:12,511 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-07-21 09:45:12,511 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [485711115] [2022-07-21 09:45:12,511 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 09:45:12,512 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-21 09:45:12,512 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 09:45:12,512 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-21 09:45:12,513 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2022-07-21 09:45:12,513 INFO L87 Difference]: Start difference. First operand 437 states and 579 transitions. Second operand has 9 states, 9 states have (on average 10.222222222222221) internal successors, (92), 5 states have internal predecessors, (92), 2 states have call successors, (29), 6 states have call predecessors, (29), 2 states have return successors, (28), 2 states have call predecessors, (28), 1 states have call successors, (28) [2022-07-21 09:45:15,672 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 09:45:15,672 INFO L93 Difference]: Finished difference Result 572 states and 764 transitions. [2022-07-21 09:45:15,672 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-07-21 09:45:15,673 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 10.222222222222221) internal successors, (92), 5 states have internal predecessors, (92), 2 states have call successors, (29), 6 states have call predecessors, (29), 2 states have return successors, (28), 2 states have call predecessors, (28), 1 states have call successors, (28) Word has length 187 [2022-07-21 09:45:15,673 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 09:45:15,676 INFO L225 Difference]: With dead ends: 572 [2022-07-21 09:45:15,676 INFO L226 Difference]: Without dead ends: 517 [2022-07-21 09:45:15,676 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 70 GetRequests, 58 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=43, Invalid=139, Unknown=0, NotChecked=0, Total=182 [2022-07-21 09:45:15,677 INFO L413 NwaCegarLoop]: 448 mSDtfsCounter, 589 mSDsluCounter, 1145 mSDsCounter, 0 mSdLazyCounter, 1383 mSolverCounterSat, 508 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 637 SdHoareTripleChecker+Valid, 1593 SdHoareTripleChecker+Invalid, 1891 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 508 IncrementalHoareTripleChecker+Valid, 1383 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.1s IncrementalHoareTripleChecker+Time [2022-07-21 09:45:15,677 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [637 Valid, 1593 Invalid, 1891 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [508 Valid, 1383 Invalid, 0 Unknown, 0 Unchecked, 3.1s Time] [2022-07-21 09:45:15,678 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 517 states. [2022-07-21 09:45:15,699 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 517 to 442. [2022-07-21 09:45:15,700 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 442 states, 306 states have (on average 1.2450980392156863) internal successors, (381), 310 states have internal predecessors, (381), 94 states have call successors, (94), 35 states have call predecessors, (94), 41 states have return successors, (110), 96 states have call predecessors, (110), 93 states have call successors, (110) [2022-07-21 09:45:15,701 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 442 states to 442 states and 585 transitions. [2022-07-21 09:45:15,702 INFO L78 Accepts]: Start accepts. Automaton has 442 states and 585 transitions. Word has length 187 [2022-07-21 09:45:15,702 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 09:45:15,702 INFO L495 AbstractCegarLoop]: Abstraction has 442 states and 585 transitions. [2022-07-21 09:45:15,702 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.222222222222221) internal successors, (92), 5 states have internal predecessors, (92), 2 states have call successors, (29), 6 states have call predecessors, (29), 2 states have return successors, (28), 2 states have call predecessors, (28), 1 states have call successors, (28) [2022-07-21 09:45:15,703 INFO L276 IsEmpty]: Start isEmpty. Operand 442 states and 585 transitions. [2022-07-21 09:45:15,704 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 191 [2022-07-21 09:45:15,704 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 09:45:15,704 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 09:45:15,704 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-07-21 09:45:15,705 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 09:45:15,705 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 09:45:15,705 INFO L85 PathProgramCache]: Analyzing trace with hash -1674366495, now seen corresponding path program 1 times [2022-07-21 09:45:15,705 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 09:45:15,705 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [41862223] [2022-07-21 09:45:15,706 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 09:45:15,706 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 09:45:15,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:45:15,938 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-21 09:45:15,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:45:15,949 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-07-21 09:45:15,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:45:15,955 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-21 09:45:15,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:45:15,961 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-07-21 09:45:15,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:45:15,982 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2022-07-21 09:45:15,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:45:15,992 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 09:45:15,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:45:16,009 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 09:45:16,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:45:16,024 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 09:45:16,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:45:16,030 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2022-07-21 09:45:16,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:45:16,060 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2022-07-21 09:45:16,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:45:16,068 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 09:45:16,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:45:16,075 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-07-21 09:45:16,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:45:16,089 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-07-21 09:45:16,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:45:16,101 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-21 09:45:16,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:45:16,108 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-07-21 09:45:16,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:45:16,115 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2022-07-21 09:45:16,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:45:16,121 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2022-07-21 09:45:16,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:45:16,127 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2022-07-21 09:45:16,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:45:16,133 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2022-07-21 09:45:16,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:45:16,140 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2022-07-21 09:45:16,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:45:16,146 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2022-07-21 09:45:16,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:45:16,153 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2022-07-21 09:45:16,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:45:16,159 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2022-07-21 09:45:16,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:45:16,227 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 09:45:16,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:45:16,392 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-21 09:45:16,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:45:16,406 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-07-21 09:45:16,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:45:16,414 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2022-07-21 09:45:16,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:45:16,474 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2022-07-21 09:45:16,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:45:16,481 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2022-07-21 09:45:16,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:45:16,486 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 181 [2022-07-21 09:45:16,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:45:16,497 INFO L134 CoverageAnalysis]: Checked inductivity of 221 backedges. 9 proven. 8 refuted. 0 times theorem prover too weak. 204 trivial. 0 not checked. [2022-07-21 09:45:16,497 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 09:45:16,497 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [41862223] [2022-07-21 09:45:16,497 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [41862223] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-21 09:45:16,497 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1867579218] [2022-07-21 09:45:16,498 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 09:45:16,498 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-21 09:45:16,498 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-21 09:45:16,499 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-21 09:45:16,500 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-07-21 09:45:17,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:45:17,443 INFO L263 TraceCheckSpWp]: Trace formula consists of 3138 conjuncts, 49 conjunts are in the unsatisfiable core [2022-07-21 09:45:17,450 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 09:45:17,477 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2022-07-21 09:45:17,479 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2022-07-21 09:45:17,607 INFO L134 CoverageAnalysis]: Checked inductivity of 221 backedges. 56 proven. 2 refuted. 0 times theorem prover too weak. 163 trivial. 0 not checked. [2022-07-21 09:45:17,608 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-21 09:45:18,021 INFO L134 CoverageAnalysis]: Checked inductivity of 221 backedges. 8 proven. 9 refuted. 0 times theorem prover too weak. 204 trivial. 0 not checked. [2022-07-21 09:45:18,021 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1867579218] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-21 09:45:18,021 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-07-21 09:45:18,021 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 12, 13] total 20 [2022-07-21 09:45:18,022 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [531264061] [2022-07-21 09:45:18,022 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-07-21 09:45:18,023 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2022-07-21 09:45:18,023 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 09:45:18,024 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2022-07-21 09:45:18,024 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=330, Unknown=0, NotChecked=0, Total=380 [2022-07-21 09:45:18,025 INFO L87 Difference]: Start difference. First operand 442 states and 585 transitions. Second operand has 20 states, 17 states have (on average 6.529411764705882) internal successors, (111), 15 states have internal predecessors, (111), 10 states have call successors, (43), 7 states have call predecessors, (43), 5 states have return successors, (35), 6 states have call predecessors, (35), 8 states have call successors, (35) [2022-07-21 09:45:21,320 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 09:45:21,320 INFO L93 Difference]: Finished difference Result 885 states and 1192 transitions. [2022-07-21 09:45:21,321 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-07-21 09:45:21,321 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 17 states have (on average 6.529411764705882) internal successors, (111), 15 states have internal predecessors, (111), 10 states have call successors, (43), 7 states have call predecessors, (43), 5 states have return successors, (35), 6 states have call predecessors, (35), 8 states have call successors, (35) Word has length 190 [2022-07-21 09:45:21,321 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 09:45:21,324 INFO L225 Difference]: With dead ends: 885 [2022-07-21 09:45:21,324 INFO L226 Difference]: Without dead ends: 542 [2022-07-21 09:45:21,325 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 462 GetRequests, 427 SyntacticMatches, 5 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 115 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=148, Invalid=844, Unknown=0, NotChecked=0, Total=992 [2022-07-21 09:45:21,326 INFO L413 NwaCegarLoop]: 447 mSDtfsCounter, 585 mSDsluCounter, 3295 mSDsCounter, 0 mSdLazyCounter, 4230 mSolverCounterSat, 457 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 641 SdHoareTripleChecker+Valid, 3742 SdHoareTripleChecker+Invalid, 4687 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 457 IncrementalHoareTripleChecker+Valid, 4230 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.0s IncrementalHoareTripleChecker+Time [2022-07-21 09:45:21,326 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [641 Valid, 3742 Invalid, 4687 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [457 Valid, 4230 Invalid, 0 Unknown, 0 Unchecked, 3.0s Time] [2022-07-21 09:45:21,327 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 542 states. [2022-07-21 09:45:21,354 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 542 to 458. [2022-07-21 09:45:21,355 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 458 states, 313 states have (on average 1.2396166134185302) internal successors, (388), 317 states have internal predecessors, (388), 102 states have call successors, (102), 36 states have call predecessors, (102), 42 states have return successors, (116), 104 states have call predecessors, (116), 101 states have call successors, (116) [2022-07-21 09:45:21,357 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 458 states to 458 states and 606 transitions. [2022-07-21 09:45:21,357 INFO L78 Accepts]: Start accepts. Automaton has 458 states and 606 transitions. Word has length 190 [2022-07-21 09:45:21,357 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 09:45:21,358 INFO L495 AbstractCegarLoop]: Abstraction has 458 states and 606 transitions. [2022-07-21 09:45:21,358 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 17 states have (on average 6.529411764705882) internal successors, (111), 15 states have internal predecessors, (111), 10 states have call successors, (43), 7 states have call predecessors, (43), 5 states have return successors, (35), 6 states have call predecessors, (35), 8 states have call successors, (35) [2022-07-21 09:45:21,358 INFO L276 IsEmpty]: Start isEmpty. Operand 458 states and 606 transitions. [2022-07-21 09:45:21,359 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 191 [2022-07-21 09:45:21,360 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 09:45:21,360 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 09:45:21,386 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2022-07-21 09:45:21,571 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2022-07-21 09:45:21,572 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 09:45:21,572 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 09:45:21,572 INFO L85 PathProgramCache]: Analyzing trace with hash 1563869444, now seen corresponding path program 1 times [2022-07-21 09:45:21,572 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 09:45:21,572 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [644231438] [2022-07-21 09:45:21,572 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 09:45:21,573 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 09:45:21,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:45:21,885 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-21 09:45:21,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:45:21,891 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-07-21 09:45:21,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:45:21,897 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-21 09:45:21,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:45:21,903 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-07-21 09:45:21,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:45:21,927 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2022-07-21 09:45:21,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:45:21,937 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 09:45:21,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:45:21,956 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 09:45:21,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:45:21,971 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 09:45:21,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:45:21,977 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2022-07-21 09:45:21,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:45:21,983 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2022-07-21 09:45:21,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:45:21,989 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 09:45:21,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:45:21,994 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-07-21 09:45:21,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:45:22,006 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-07-21 09:45:22,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:45:22,017 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-21 09:45:22,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:45:22,023 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-07-21 09:45:22,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:45:22,029 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2022-07-21 09:45:22,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:45:22,033 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2022-07-21 09:45:22,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:45:22,039 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2022-07-21 09:45:22,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:45:22,044 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2022-07-21 09:45:22,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:45:22,049 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2022-07-21 09:45:22,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:45:22,054 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2022-07-21 09:45:22,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:45:22,059 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2022-07-21 09:45:22,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:45:22,065 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2022-07-21 09:45:22,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:45:22,117 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 09:45:22,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:45:22,134 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-21 09:45:22,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:45:22,140 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-07-21 09:45:22,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:45:22,147 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2022-07-21 09:45:22,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:45:22,153 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2022-07-21 09:45:22,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:45:22,159 INFO L134 CoverageAnalysis]: Checked inductivity of 209 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 209 trivial. 0 not checked. [2022-07-21 09:45:22,159 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 09:45:22,160 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [644231438] [2022-07-21 09:45:22,160 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [644231438] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 09:45:22,160 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 09:45:22,160 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-07-21 09:45:22,160 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1218250167] [2022-07-21 09:45:22,160 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 09:45:22,161 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2022-07-21 09:45:22,161 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 09:45:22,161 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2022-07-21 09:45:22,162 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=181, Unknown=0, NotChecked=0, Total=210 [2022-07-21 09:45:22,162 INFO L87 Difference]: Start difference. First operand 458 states and 606 transitions. Second operand has 15 states, 15 states have (on average 5.866666666666666) internal successors, (88), 9 states have internal predecessors, (88), 6 states have call successors, (32), 8 states have call predecessors, (32), 2 states have return successors, (27), 4 states have call predecessors, (27), 3 states have call successors, (27) [2022-07-21 09:45:25,224 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 09:45:25,225 INFO L93 Difference]: Finished difference Result 900 states and 1217 transitions. [2022-07-21 09:45:25,226 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-07-21 09:45:25,226 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 5.866666666666666) internal successors, (88), 9 states have internal predecessors, (88), 6 states have call successors, (32), 8 states have call predecessors, (32), 2 states have return successors, (27), 4 states have call predecessors, (27), 3 states have call successors, (27) Word has length 190 [2022-07-21 09:45:25,227 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 09:45:25,230 INFO L225 Difference]: With dead ends: 900 [2022-07-21 09:45:25,230 INFO L226 Difference]: Without dead ends: 593 [2022-07-21 09:45:25,231 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 79 GetRequests, 54 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 69 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=128, Invalid=574, Unknown=0, NotChecked=0, Total=702 [2022-07-21 09:45:25,232 INFO L413 NwaCegarLoop]: 447 mSDtfsCounter, 395 mSDsluCounter, 2776 mSDsCounter, 0 mSdLazyCounter, 3477 mSolverCounterSat, 178 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 449 SdHoareTripleChecker+Valid, 3223 SdHoareTripleChecker+Invalid, 3655 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 178 IncrementalHoareTripleChecker+Valid, 3477 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.8s IncrementalHoareTripleChecker+Time [2022-07-21 09:45:25,232 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [449 Valid, 3223 Invalid, 3655 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [178 Valid, 3477 Invalid, 0 Unknown, 0 Unchecked, 2.8s Time] [2022-07-21 09:45:25,233 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 593 states. [2022-07-21 09:45:25,258 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 593 to 479. [2022-07-21 09:45:25,259 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 479 states, 324 states have (on average 1.2345679012345678) internal successors, (400), 328 states have internal predecessors, (400), 110 states have call successors, (110), 38 states have call predecessors, (110), 44 states have return successors, (126), 112 states have call predecessors, (126), 109 states have call successors, (126) [2022-07-21 09:45:25,261 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 479 states to 479 states and 636 transitions. [2022-07-21 09:45:25,261 INFO L78 Accepts]: Start accepts. Automaton has 479 states and 636 transitions. Word has length 190 [2022-07-21 09:45:25,261 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 09:45:25,262 INFO L495 AbstractCegarLoop]: Abstraction has 479 states and 636 transitions. [2022-07-21 09:45:25,262 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 5.866666666666666) internal successors, (88), 9 states have internal predecessors, (88), 6 states have call successors, (32), 8 states have call predecessors, (32), 2 states have return successors, (27), 4 states have call predecessors, (27), 3 states have call successors, (27) [2022-07-21 09:45:25,262 INFO L276 IsEmpty]: Start isEmpty. Operand 479 states and 636 transitions. [2022-07-21 09:45:25,263 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 186 [2022-07-21 09:45:25,263 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 09:45:25,264 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 09:45:25,264 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-07-21 09:45:25,264 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 09:45:25,264 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 09:45:25,264 INFO L85 PathProgramCache]: Analyzing trace with hash -1811820170, now seen corresponding path program 1 times [2022-07-21 09:45:25,265 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 09:45:25,265 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [806645826] [2022-07-21 09:45:25,265 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 09:45:25,265 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 09:45:25,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:45:25,448 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-21 09:45:25,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:45:25,453 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-07-21 09:45:25,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:45:25,459 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-21 09:45:25,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:45:25,464 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-07-21 09:45:25,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:45:25,479 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2022-07-21 09:45:25,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:45:25,487 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 09:45:25,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:45:25,499 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 09:45:25,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:45:25,509 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 09:45:25,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:45:25,514 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2022-07-21 09:45:25,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:45:25,519 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2022-07-21 09:45:25,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:45:25,525 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 09:45:25,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:45:25,530 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-07-21 09:45:25,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:45:25,541 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-07-21 09:45:25,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:45:25,550 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-21 09:45:25,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:45:25,556 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-07-21 09:45:25,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:45:25,561 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2022-07-21 09:45:25,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:45:25,566 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2022-07-21 09:45:25,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:45:25,570 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2022-07-21 09:45:25,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:45:25,575 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2022-07-21 09:45:25,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:45:25,580 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2022-07-21 09:45:25,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:45:25,584 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2022-07-21 09:45:25,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:45:25,589 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2022-07-21 09:45:25,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:45:25,593 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2022-07-21 09:45:25,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:45:25,605 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 09:45:25,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:45:25,615 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-21 09:45:25,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:45:25,620 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-07-21 09:45:25,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:45:25,634 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2022-07-21 09:45:25,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:45:25,658 INFO L134 CoverageAnalysis]: Checked inductivity of 165 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 165 trivial. 0 not checked. [2022-07-21 09:45:25,658 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 09:45:25,659 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [806645826] [2022-07-21 09:45:25,659 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [806645826] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 09:45:25,659 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 09:45:25,659 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-21 09:45:25,662 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1103578837] [2022-07-21 09:45:25,662 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 09:45:25,663 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-21 09:45:25,663 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 09:45:25,663 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-21 09:45:25,663 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2022-07-21 09:45:25,664 INFO L87 Difference]: Start difference. First operand 479 states and 636 transitions. Second operand has 7 states, 7 states have (on average 13.428571428571429) internal successors, (94), 3 states have internal predecessors, (94), 2 states have call successors, (27), 6 states have call predecessors, (27), 2 states have return successors, (26), 2 states have call predecessors, (26), 1 states have call successors, (26) [2022-07-21 09:45:29,170 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 09:45:29,170 INFO L93 Difference]: Finished difference Result 798 states and 1064 transitions. [2022-07-21 09:45:29,171 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-07-21 09:45:29,171 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 13.428571428571429) internal successors, (94), 3 states have internal predecessors, (94), 2 states have call successors, (27), 6 states have call predecessors, (27), 2 states have return successors, (26), 2 states have call predecessors, (26), 1 states have call successors, (26) Word has length 185 [2022-07-21 09:45:29,171 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 09:45:29,177 INFO L225 Difference]: With dead ends: 798 [2022-07-21 09:45:29,177 INFO L226 Difference]: Without dead ends: 556 [2022-07-21 09:45:29,178 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 54 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2022-07-21 09:45:29,179 INFO L413 NwaCegarLoop]: 451 mSDtfsCounter, 472 mSDsluCounter, 661 mSDsCounter, 0 mSdLazyCounter, 782 mSolverCounterSat, 395 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 520 SdHoareTripleChecker+Valid, 1112 SdHoareTripleChecker+Invalid, 1177 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 395 IncrementalHoareTripleChecker+Valid, 782 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.4s IncrementalHoareTripleChecker+Time [2022-07-21 09:45:29,179 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [520 Valid, 1112 Invalid, 1177 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [395 Valid, 782 Invalid, 0 Unknown, 0 Unchecked, 3.4s Time] [2022-07-21 09:45:29,180 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 556 states. [2022-07-21 09:45:29,206 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 556 to 481. [2022-07-21 09:45:29,207 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 481 states, 326 states have (on average 1.2331288343558282) internal successors, (402), 330 states have internal predecessors, (402), 110 states have call successors, (110), 38 states have call predecessors, (110), 44 states have return successors, (126), 112 states have call predecessors, (126), 109 states have call successors, (126) [2022-07-21 09:45:29,209 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 481 states to 481 states and 638 transitions. [2022-07-21 09:45:29,209 INFO L78 Accepts]: Start accepts. Automaton has 481 states and 638 transitions. Word has length 185 [2022-07-21 09:45:29,210 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 09:45:29,210 INFO L495 AbstractCegarLoop]: Abstraction has 481 states and 638 transitions. [2022-07-21 09:45:29,210 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 13.428571428571429) internal successors, (94), 3 states have internal predecessors, (94), 2 states have call successors, (27), 6 states have call predecessors, (27), 2 states have return successors, (26), 2 states have call predecessors, (26), 1 states have call successors, (26) [2022-07-21 09:45:29,210 INFO L276 IsEmpty]: Start isEmpty. Operand 481 states and 638 transitions. [2022-07-21 09:45:29,211 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 194 [2022-07-21 09:45:29,211 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 09:45:29,212 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 09:45:29,212 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-07-21 09:45:29,212 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 09:45:29,212 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 09:45:29,212 INFO L85 PathProgramCache]: Analyzing trace with hash -103866992, now seen corresponding path program 1 times [2022-07-21 09:45:29,213 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 09:45:29,213 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [140245975] [2022-07-21 09:45:29,213 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 09:45:29,213 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 09:45:30,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:45:30,097 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-21 09:45:30,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:45:30,102 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-07-21 09:45:30,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:45:30,107 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-21 09:45:30,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:45:30,112 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-07-21 09:45:30,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:45:30,129 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2022-07-21 09:45:30,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:45:30,147 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 09:45:30,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:45:30,161 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 09:45:30,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:45:30,172 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 09:45:30,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:45:30,178 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2022-07-21 09:45:30,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:45:30,205 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2022-07-21 09:45:30,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:45:30,212 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 09:45:30,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:45:30,217 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-07-21 09:45:30,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:45:30,231 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-07-21 09:45:30,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:45:30,242 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-21 09:45:30,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:45:30,248 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-07-21 09:45:30,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:45:30,253 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2022-07-21 09:45:30,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:45:30,258 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2022-07-21 09:45:30,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:45:30,264 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2022-07-21 09:45:30,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:45:30,269 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2022-07-21 09:45:30,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:45:30,274 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2022-07-21 09:45:30,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:45:30,279 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2022-07-21 09:45:30,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:45:30,285 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2022-07-21 09:45:30,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:45:30,290 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2022-07-21 09:45:30,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:45:30,303 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 09:45:30,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:45:30,313 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-21 09:45:30,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:45:30,320 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-07-21 09:45:30,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:45:30,338 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2022-07-21 09:45:30,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:45:30,350 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2022-07-21 09:45:30,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:45:30,362 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 09:45:30,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:45:30,368 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 09:45:30,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:45:30,373 INFO L134 CoverageAnalysis]: Checked inductivity of 169 backedges. 6 proven. 18 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2022-07-21 09:45:30,373 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 09:45:30,373 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [140245975] [2022-07-21 09:45:30,374 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [140245975] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-21 09:45:30,374 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [541031955] [2022-07-21 09:45:30,374 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 09:45:30,374 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-21 09:45:30,374 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-21 09:45:30,376 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-21 09:45:30,382 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-07-21 09:45:31,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:45:31,406 INFO L263 TraceCheckSpWp]: Trace formula consists of 3219 conjuncts, 61 conjunts are in the unsatisfiable core [2022-07-21 09:45:31,414 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 09:45:31,534 INFO L134 CoverageAnalysis]: Checked inductivity of 169 backedges. 91 proven. 0 refuted. 0 times theorem prover too weak. 78 trivial. 0 not checked. [2022-07-21 09:45:31,534 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-21 09:45:31,534 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [541031955] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 09:45:31,535 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-21 09:45:31,535 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [10] total 13 [2022-07-21 09:45:31,535 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1702071092] [2022-07-21 09:45:31,535 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 09:45:31,536 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-21 09:45:31,536 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 09:45:31,536 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-21 09:45:31,536 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=127, Unknown=0, NotChecked=0, Total=156 [2022-07-21 09:45:31,537 INFO L87 Difference]: Start difference. First operand 481 states and 638 transitions. Second operand has 7 states, 7 states have (on average 15.142857142857142) internal successors, (106), 7 states have internal predecessors, (106), 4 states have call successors, (30), 2 states have call predecessors, (30), 4 states have return successors, (29), 4 states have call predecessors, (29), 4 states have call successors, (29) [2022-07-21 09:45:31,813 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 09:45:31,814 INFO L93 Difference]: Finished difference Result 955 states and 1265 transitions. [2022-07-21 09:45:31,814 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-21 09:45:31,814 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 15.142857142857142) internal successors, (106), 7 states have internal predecessors, (106), 4 states have call successors, (30), 2 states have call predecessors, (30), 4 states have return successors, (29), 4 states have call predecessors, (29), 4 states have call successors, (29) Word has length 193 [2022-07-21 09:45:31,815 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 09:45:31,817 INFO L225 Difference]: With dead ends: 955 [2022-07-21 09:45:31,817 INFO L226 Difference]: Without dead ends: 483 [2022-07-21 09:45:31,819 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 258 GetRequests, 246 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=34, Invalid=148, Unknown=0, NotChecked=0, Total=182 [2022-07-21 09:45:31,819 INFO L413 NwaCegarLoop]: 439 mSDtfsCounter, 91 mSDsluCounter, 1671 mSDsCounter, 0 mSdLazyCounter, 243 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 119 SdHoareTripleChecker+Valid, 2110 SdHoareTripleChecker+Invalid, 244 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 243 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-07-21 09:45:31,819 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [119 Valid, 2110 Invalid, 244 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 243 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-07-21 09:45:31,820 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 483 states. [2022-07-21 09:45:31,847 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 483 to 483. [2022-07-21 09:45:31,848 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 483 states, 327 states have (on average 1.2324159021406729) internal successors, (403), 332 states have internal predecessors, (403), 110 states have call successors, (110), 38 states have call predecessors, (110), 45 states have return successors, (127), 112 states have call predecessors, (127), 109 states have call successors, (127) [2022-07-21 09:45:31,849 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 483 states to 483 states and 640 transitions. [2022-07-21 09:45:31,849 INFO L78 Accepts]: Start accepts. Automaton has 483 states and 640 transitions. Word has length 193 [2022-07-21 09:45:31,850 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 09:45:31,850 INFO L495 AbstractCegarLoop]: Abstraction has 483 states and 640 transitions. [2022-07-21 09:45:31,850 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 15.142857142857142) internal successors, (106), 7 states have internal predecessors, (106), 4 states have call successors, (30), 2 states have call predecessors, (30), 4 states have return successors, (29), 4 states have call predecessors, (29), 4 states have call successors, (29) [2022-07-21 09:45:31,850 INFO L276 IsEmpty]: Start isEmpty. Operand 483 states and 640 transitions. [2022-07-21 09:45:31,851 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 200 [2022-07-21 09:45:31,851 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 09:45:31,852 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 09:45:31,889 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2022-07-21 09:45:32,067 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-21 09:45:32,068 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 09:45:32,068 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 09:45:32,068 INFO L85 PathProgramCache]: Analyzing trace with hash 2131388023, now seen corresponding path program 1 times [2022-07-21 09:45:32,068 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 09:45:32,068 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [242156481] [2022-07-21 09:45:32,068 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 09:45:32,069 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 09:45:32,156 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-07-21 09:45:32,157 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1852112270] [2022-07-21 09:45:32,158 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 09:45:32,158 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-21 09:45:32,158 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-21 09:45:32,160 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-21 09:45:32,181 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-07-21 09:45:33,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:45:33,294 INFO L263 TraceCheckSpWp]: Trace formula consists of 3324 conjuncts, 283 conjunts are in the unsatisfiable core [2022-07-21 09:45:33,312 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 09:45:33,321 INFO L390 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 [2022-07-21 09:45:33,534 INFO L356 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-07-21 09:45:33,534 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 21 [2022-07-21 09:45:33,560 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-07-21 09:45:33,896 INFO L356 Elim1Store]: treesize reduction 112, result has 28.7 percent of original size [2022-07-21 09:45:33,897 INFO L390 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 142 treesize of output 166 [2022-07-21 09:45:34,117 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-07-21 09:45:34,177 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-21 09:45:34,178 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 14 [2022-07-21 09:45:34,228 INFO L390 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 [2022-07-21 09:45:34,236 INFO L390 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 [2022-07-21 09:45:34,241 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 14 [2022-07-21 09:45:34,882 INFO L356 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2022-07-21 09:45:34,882 INFO L390 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 28 treesize of output 29 [2022-07-21 09:45:34,887 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-21 09:45:34,888 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 20 [2022-07-21 09:45:35,297 INFO L356 Elim1Store]: treesize reduction 102, result has 17.1 percent of original size [2022-07-21 09:45:35,298 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 09:45:35,298 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [242156481] [2022-07-21 09:45:35,298 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-07-21 09:45:35,298 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1852112270] [2022-07-21 09:45:35,299 WARN L319 FreeRefinementEngine]: Global settings require throwing the following exception [2022-07-21 09:45:35,336 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2022-07-21 09:45:35,499 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-21 09:45:35,500 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.AssertionError: var is still there: |v_#memory_$Pointer$.base_184| input size 111 context size 111 output size 111 at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1(Elim1Store.java:364) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.ElimStorePlain.applyComplexEliminationRules(ElimStorePlain.java:427) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.DualJunctionSaa.tryToEliminate(DualJunctionSaa.java:190) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.DualJunctionSaa.tryToEliminateOne3(DualJunctionSaa.java:172) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.DualJunctionSaa.tryToEliminateOne2(DualJunctionSaa.java:151) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.DualJunctionSaa.tryToEliminateOne1(DualJunctionSaa.java:140) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.DualJunctionSaa.tryToEliminateOne0(DualJunctionSaa.java:124) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.DualJunctionSaa.tryToEliminateOne(DualJunctionSaa.java:108) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.DualJunctionSaa.tryExhaustivelyToEliminate(DualJunctionSaa.java:93) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.DualJunctionSaa.tryToEliminate(DualJunctionSaa.java:88) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.tryToEliminateOne(QuantifierPusher.java:764) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.applyNewEliminationTechniquesExhaustively(QuantifierPusher.java:725) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.applyDualJunctionEliminationTechniques(QuantifierPusher.java:643) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.tryToPushOverDualFiniteConnective(QuantifierPusher.java:335) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushTermWalker.convert(QuantifierPushTermWalker.java:176) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushTermWalker.convert(QuantifierPushTermWalker.java:1) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.TermContextTransformationEngine$ApplicationTermTask.doStep(TermContextTransformationEngine.java:169) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.TermContextTransformationEngine.transform(TermContextTransformationEngine.java:77) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.TermContextTransformationEngine.transform(TermContextTransformationEngine.java:61) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushTermWalker.eliminate(QuantifierPushTermWalker.java:265) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushTermWalker.eliminate(QuantifierPushTermWalker.java:251) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.PartialQuantifierElimination.eliminate(PartialQuantifierElimination.java:90) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.predicates.IterativePredicateTransformer$QuantifierEliminationPostprocessor.postprocess(IterativePredicateTransformer.java:238) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.predicates.IterativePredicateTransformer.applyPostprocessors(IterativePredicateTransformer.java:420) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.predicates.IterativePredicateTransformer.computeStrongestPostconditionSequence(IterativePredicateTransformer.java:199) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckSpWp.computeInterpolantsUsingUnsatCore(TraceCheckSpWp.java:299) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckSpWp.computeInterpolants(TraceCheckSpWp.java:185) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckSpWp.(TraceCheckSpWp.java:163) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSpWp.construct(IpTcStrategyModuleSpWp.java:108) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSpWp.construct(IpTcStrategyModuleSpWp.java:1) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:101) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.isCorrect(IpTcStrategyModuleBase.java:57) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.checkFeasibility(AutomatonFreeRefinementEngine.java:209) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:121) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:85) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:82) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:248) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:431) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.startCegar(AbstractCegarLoop.java:366) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.runCegar(AbstractCegarLoop.java:348) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.executeCegarLoop(TraceAbstractionStarter.java:409) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseProgram(TraceAbstractionStarter.java:300) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseSequentialProgram(TraceAbstractionStarter.java:260) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:173) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:152) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:123) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2022-07-21 09:45:35,503 INFO L158 Benchmark]: Toolchain (without parser) took 82560.36ms. Allocated memory was 58.7MB in the beginning and 648.0MB in the end (delta: 589.3MB). Free memory was 27.8MB in the beginning and 468.7MB in the end (delta: -441.0MB). Peak memory consumption was 149.8MB. Max. memory is 16.1GB. [2022-07-21 09:45:35,503 INFO L158 Benchmark]: CDTParser took 0.18ms. Allocated memory is still 58.7MB. Free memory was 41.0MB in the beginning and 41.0MB in the end (delta: 39.3kB). There was no memory consumed. Max. memory is 16.1GB. [2022-07-21 09:45:35,504 INFO L158 Benchmark]: CACSL2BoogieTranslator took 2526.97ms. Allocated memory was 58.7MB in the beginning and 148.9MB in the end (delta: 90.2MB). Free memory was 40.3MB in the beginning and 96.5MB in the end (delta: -56.2MB). Peak memory consumption was 69.1MB. Max. memory is 16.1GB. [2022-07-21 09:45:35,504 INFO L158 Benchmark]: Boogie Procedure Inliner took 161.92ms. Allocated memory is still 148.9MB. Free memory was 96.5MB in the beginning and 81.8MB in the end (delta: 14.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2022-07-21 09:45:35,504 INFO L158 Benchmark]: Boogie Preprocessor took 151.53ms. Allocated memory is still 148.9MB. Free memory was 81.8MB in the beginning and 70.1MB in the end (delta: 11.7MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-07-21 09:45:35,504 INFO L158 Benchmark]: RCFGBuilder took 1880.54ms. Allocated memory is still 148.9MB. Free memory was 70.1MB in the beginning and 65.9MB in the end (delta: 4.3MB). Peak memory consumption was 32.8MB. Max. memory is 16.1GB. [2022-07-21 09:45:35,504 INFO L158 Benchmark]: TraceAbstraction took 77822.13ms. Allocated memory was 148.9MB in the beginning and 648.0MB in the end (delta: 499.1MB). Free memory was 65.9MB in the beginning and 468.7MB in the end (delta: -402.9MB). Peak memory consumption was 96.5MB. Max. memory is 16.1GB. [2022-07-21 09:45:35,506 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18ms. Allocated memory is still 58.7MB. Free memory was 41.0MB in the beginning and 41.0MB in the end (delta: 39.3kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 2526.97ms. Allocated memory was 58.7MB in the beginning and 148.9MB in the end (delta: 90.2MB). Free memory was 40.3MB in the beginning and 96.5MB in the end (delta: -56.2MB). Peak memory consumption was 69.1MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 161.92ms. Allocated memory is still 148.9MB. Free memory was 96.5MB in the beginning and 81.8MB in the end (delta: 14.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Boogie Preprocessor took 151.53ms. Allocated memory is still 148.9MB. Free memory was 81.8MB in the beginning and 70.1MB in the end (delta: 11.7MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * RCFGBuilder took 1880.54ms. Allocated memory is still 148.9MB. Free memory was 70.1MB in the beginning and 65.9MB in the end (delta: 4.3MB). Peak memory consumption was 32.8MB. Max. memory is 16.1GB. * TraceAbstraction took 77822.13ms. Allocated memory was 148.9MB in the beginning and 648.0MB in the end (delta: 499.1MB). Free memory was 65.9MB in the beginning and 468.7MB in the end (delta: -402.9MB). Peak memory consumption was 96.5MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: AssertionError: var is still there: |v_#memory_$Pointer$.base_184| input size 111 context size 111 output size 111 de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: AssertionError: var is still there: |v_#memory_$Pointer$.base_184| input size 111 context size 111 output size 111: de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1(Elim1Store.java:364) RESULT: Ultimate could not prove your program: Toolchain returned no result. [2022-07-21 09:45:35,640 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### 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_Bitvector.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 0.2.2-?-3598765 [2022-07-21 09:45:37,329 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-21 09:45:37,332 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-21 09:45:37,369 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-21 09:45:37,370 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-21 09:45:37,371 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-21 09:45:37,375 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-21 09:45:37,378 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-21 09:45:37,379 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-21 09:45:37,383 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-21 09:45:37,384 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-21 09:45:37,389 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-21 09:45:37,389 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-21 09:45:37,391 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-21 09:45:37,391 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-21 09:45:37,394 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-21 09:45:37,395 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-21 09:45:37,396 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-21 09:45:37,397 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-21 09:45:37,403 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-21 09:45:37,404 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-21 09:45:37,405 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-21 09:45:37,406 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-21 09:45:37,407 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-21 09:45:37,408 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-21 09:45:37,414 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-21 09:45:37,415 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-21 09:45:37,415 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-21 09:45:37,416 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-21 09:45:37,416 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-21 09:45:37,417 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-21 09:45:37,417 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-21 09:45:37,418 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-21 09:45:37,419 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-21 09:45:37,420 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-21 09:45:37,421 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-21 09:45:37,421 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-21 09:45:37,422 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-21 09:45:37,422 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-21 09:45:37,422 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-21 09:45:37,423 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-21 09:45:37,424 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-21 09:45:37,429 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Bitvector.epf [2022-07-21 09:45:37,459 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-21 09:45:37,460 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-21 09:45:37,460 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-21 09:45:37,460 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-21 09:45:37,461 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-21 09:45:37,461 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-21 09:45:37,462 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-21 09:45:37,462 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-21 09:45:37,462 INFO L138 SettingsManager]: * Use SBE=true [2022-07-21 09:45:37,463 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-21 09:45:37,463 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-21 09:45:37,463 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-21 09:45:37,463 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-21 09:45:37,464 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-21 09:45:37,464 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-07-21 09:45:37,473 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-07-21 09:45:37,473 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-07-21 09:45:37,473 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-21 09:45:37,474 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-21 09:45:37,474 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-21 09:45:37,474 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-21 09:45:37,474 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-21 09:45:37,475 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-21 09:45:37,475 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-21 09:45:37,475 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-21 09:45:37,475 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-21 09:45:37,476 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-21 09:45:37,476 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2022-07-21 09:45:37,476 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-07-21 09:45:37,476 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-21 09:45:37,477 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-21 09:45:37,477 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-21 09:45:37,477 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-07-21 09:45:37,477 INFO L138 SettingsManager]: * Logic for external solver=AUFBV 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7e3410638a547f2efce35a13c7d23c64ee660b1c493ec273ce9d4043edc218c3 [2022-07-21 09:45:37,803 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-21 09:45:37,826 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-21 09:45:37,829 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-21 09:45:37,829 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-21 09:45:37,830 INFO L275 PluginConnector]: CDTParser initialized [2022-07-21 09:45:37,831 INFO L432 ainManager$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 [2022-07-21 09:45:37,888 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/eb47742d1/cb6aa2000c2a4d40a18d350123587c5d/FLAGb13b264be [2022-07-21 09:45:38,580 INFO L306 CDTParser]: Found 1 translation units. [2022-07-21 09:45:38,580 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_hash_table_put_harness.i [2022-07-21 09:45:38,621 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/eb47742d1/cb6aa2000c2a4d40a18d350123587c5d/FLAGb13b264be [2022-07-21 09:45:38,915 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/eb47742d1/cb6aa2000c2a4d40a18d350123587c5d [2022-07-21 09:45:38,921 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-21 09:45:38,922 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-21 09:45:38,925 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-21 09:45:38,925 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-21 09:45:38,928 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-21 09:45:38,928 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 09:45:38" (1/1) ... [2022-07-21 09:45:38,929 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5920ba5f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 09:45:38, skipping insertion in model container [2022-07-21 09:45:38,930 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 09:45:38" (1/1) ... [2022-07-21 09:45:38,935 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-21 09:45:39,047 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-21 09:45:39,326 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_hash_table_put_harness.i[4492,4505] [2022-07-21 09:45:39,333 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_hash_table_put_harness.i[4552,4565] [2022-07-21 09:45:40,032 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-21 09:45:40,032 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-21 09:45:40,033 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-21 09:45:40,034 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-21 09:45:40,034 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-21 09:45:40,049 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-21 09:45:40,050 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-21 09:45:40,053 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-21 09:45:40,055 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-21 09:45:40,058 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-21 09:45:40,059 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-21 09:45:40,060 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-21 09:45:40,061 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-21 09:45:40,378 WARN L611 FunctionHandler]: implicit declaration of function __atomic_load_n [2022-07-21 09:45:40,380 WARN L611 FunctionHandler]: implicit declaration of function __atomic_store_n [2022-07-21 09:45:40,381 WARN L611 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2022-07-21 09:45:40,383 WARN L611 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2022-07-21 09:45:40,384 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2022-07-21 09:45:40,386 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2022-07-21 09:45:40,387 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2022-07-21 09:45:40,387 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2022-07-21 09:45:40,396 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2022-07-21 09:45:40,401 WARN L611 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2022-07-21 09:45:40,554 WARN L611 FunctionHandler]: implicit declaration of function __builtin_va_copy [2022-07-21 09:45:40,576 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator has thrown an exception: java.lang.ArithmeticException: BigInteger out of int range at java.base/java.math.BigInteger.intValueExact(BigInteger.java:4784) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.checkIfNecessaryMemoryModelAdaption(CHandler.java:1009) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:968) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:279) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.result.ExpressionResultTransformer.transformDispatchDecaySwitchRexBoolToInt(ExpressionResultTransformer.java:177) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.chandler.FunctionHandler.handleFunctionCallGivenNameAndArguments(FunctionHandler.java:675) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.chandler.FunctionHandler.handleFunctionCallExpression(FunctionHandler.java:509) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1454) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:267) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1397) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:220) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1081) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:232) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.chandler.FunctionHandler.handleFunctionDefinition(FunctionHandler.java:371) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1470) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:155) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.processTUchild(CHandler.java:3276) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:2361) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:601) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:134) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainTranslator.translate(MainTranslator.java:192) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainTranslator.run(MainTranslator.java:115) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainTranslator.(MainTranslator.java:93) at de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver.finish(CACSL2BoogieTranslatorObserver.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2022-07-21 09:45:40,582 INFO L158 Benchmark]: Toolchain (without parser) took 1658.47ms. Allocated memory was 60.8MB in the beginning and 77.6MB in the end (delta: 16.8MB). Free memory was 30.8MB in the beginning and 41.9MB in the end (delta: -11.1MB). Peak memory consumption was 21.7MB. Max. memory is 16.1GB. [2022-07-21 09:45:40,583 INFO L158 Benchmark]: CDTParser took 0.18ms. Allocated memory is still 60.8MB. Free memory was 42.9MB in the beginning and 42.9MB in the end (delta: 50.2kB). There was no memory consumed. Max. memory is 16.1GB. [2022-07-21 09:45:40,585 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1655.46ms. Allocated memory was 60.8MB in the beginning and 77.6MB in the end (delta: 16.8MB). Free memory was 30.7MB in the beginning and 41.9MB in the end (delta: -11.3MB). Peak memory consumption was 21.7MB. Max. memory is 16.1GB. [2022-07-21 09:45:40,588 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18ms. Allocated memory is still 60.8MB. Free memory was 42.9MB in the beginning and 42.9MB in the end (delta: 50.2kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1655.46ms. Allocated memory was 60.8MB in the beginning and 77.6MB in the end (delta: 16.8MB). Free memory was 30.7MB in the beginning and 41.9MB in the end (delta: -11.3MB). Peak memory consumption was 21.7MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - ExceptionOrErrorResult: ArithmeticException: BigInteger out of int range de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: ArithmeticException: BigInteger out of int range: java.base/java.math.BigInteger.intValueExact(BigInteger.java:4784) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: ERROR: ExceptionOrErrorResult: ArithmeticException: BigInteger out of int range