./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/aws-c-common/aws_hash_table_get_entry_count_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_get_entry_count_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 846a565d6a742f245ca362c4e2fb63bb4d14b5e5473527f5da84e078cffb2df4 --- Real Ultimate output --- This is Ultimate 0.2.2-?-3598765 [2022-07-21 09:42:33,311 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-21 09:42:33,313 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-21 09:42:33,341 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-21 09:42:33,341 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-21 09:42:33,342 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-21 09:42:33,345 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-21 09:42:33,348 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-21 09:42:33,349 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-21 09:42:33,352 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-21 09:42:33,358 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-21 09:42:33,361 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-21 09:42:33,361 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-21 09:42:33,363 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-21 09:42:33,363 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-21 09:42:33,365 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-21 09:42:33,366 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-21 09:42:33,367 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-21 09:42:33,369 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-21 09:42:33,374 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-21 09:42:33,375 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-21 09:42:33,376 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-21 09:42:33,376 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-21 09:42:33,378 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-21 09:42:33,379 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-21 09:42:33,384 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-21 09:42:33,384 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-21 09:42:33,384 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-21 09:42:33,385 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-21 09:42:33,385 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-21 09:42:33,386 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-21 09:42:33,386 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-21 09:42:33,387 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-21 09:42:33,388 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-21 09:42:33,390 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-21 09:42:33,391 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-21 09:42:33,391 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-21 09:42:33,392 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-21 09:42:33,392 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-21 09:42:33,392 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-21 09:42:33,393 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-21 09:42:33,394 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-21 09:42:33,398 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2022-07-21 09:42:33,421 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-21 09:42:33,422 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-21 09:42:33,422 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-21 09:42:33,422 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-21 09:42:33,423 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-21 09:42:33,423 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-21 09:42:33,424 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-21 09:42:33,424 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-21 09:42:33,424 INFO L138 SettingsManager]: * Use SBE=true [2022-07-21 09:42:33,425 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-21 09:42:33,425 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-21 09:42:33,425 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-21 09:42:33,425 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-21 09:42:33,425 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-21 09:42:33,425 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-21 09:42:33,426 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-21 09:42:33,426 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-21 09:42:33,426 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-21 09:42:33,426 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-21 09:42:33,426 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-21 09:42:33,426 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-21 09:42:33,427 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-21 09:42:33,427 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-21 09:42:33,427 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-21 09:42:33,427 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-21 09:42:33,427 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-21 09:42:33,427 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-21 09:42:33,427 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-21 09:42:33,428 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-21 09:42:33,428 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-21 09:42:33,428 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 846a565d6a742f245ca362c4e2fb63bb4d14b5e5473527f5da84e078cffb2df4 [2022-07-21 09:42:33,673 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-21 09:42:33,687 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-21 09:42:33,689 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-21 09:42:33,689 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-21 09:42:33,690 INFO L275 PluginConnector]: CDTParser initialized [2022-07-21 09:42:33,691 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/aws-c-common/aws_hash_table_get_entry_count_harness.i [2022-07-21 09:42:33,743 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b21deaf96/2fc26c360c1548bdab825571688fd9bb/FLAG1269a955a [2022-07-21 09:42:34,314 INFO L306 CDTParser]: Found 1 translation units. [2022-07-21 09:42:34,315 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_hash_table_get_entry_count_harness.i [2022-07-21 09:42:34,339 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b21deaf96/2fc26c360c1548bdab825571688fd9bb/FLAG1269a955a [2022-07-21 09:42:34,761 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b21deaf96/2fc26c360c1548bdab825571688fd9bb [2022-07-21 09:42:34,763 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-21 09:42:34,763 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-21 09:42:34,764 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-21 09:42:34,764 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-21 09:42:34,767 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-21 09:42:34,767 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 09:42:34" (1/1) ... [2022-07-21 09:42:34,768 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5a0295c1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 09:42:34, skipping insertion in model container [2022-07-21 09:42:34,768 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 09:42:34" (1/1) ... [2022-07-21 09:42:34,773 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-21 09:42:34,864 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-21 09:42:35,106 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_get_entry_count_harness.i[4504,4517] [2022-07-21 09:42:35,114 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_get_entry_count_harness.i[4564,4577] [2022-07-21 09:42:35,684 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-21 09:42:35,684 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-21 09:42:35,685 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-21 09:42:35,685 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-21 09:42:35,686 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-21 09:42:35,695 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-21 09:42:35,696 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-21 09:42:35,697 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-21 09:42:35,697 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-21 09:42:35,698 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-21 09:42:35,698 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-21 09:42:35,699 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-21 09:42:35,699 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-21 09:42:36,007 WARN L611 FunctionHandler]: implicit declaration of function __atomic_load_n [2022-07-21 09:42:36,009 WARN L611 FunctionHandler]: implicit declaration of function __atomic_store_n [2022-07-21 09:42:36,009 WARN L611 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2022-07-21 09:42:36,010 WARN L611 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2022-07-21 09:42:36,011 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2022-07-21 09:42:36,011 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2022-07-21 09:42:36,011 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2022-07-21 09:42:36,012 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2022-07-21 09:42:36,012 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2022-07-21 09:42:36,013 WARN L611 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2022-07-21 09:42:36,141 WARN L611 FunctionHandler]: implicit declaration of function __builtin_va_copy [2022-07-21 09:42:36,361 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-21 09:42:36,362 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-21 09:42:36,374 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-21 09:42:36,375 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-21 09:42:36,379 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-21 09:42:36,379 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-21 09:42:36,389 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-21 09:42:36,390 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-21 09:42:36,391 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-21 09:42:36,391 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-21 09:42:36,391 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-21 09:42:36,391 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-21 09:42:36,392 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-21 09:42:36,419 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-21 09:42:36,453 INFO L203 MainTranslator]: Completed pre-run [2022-07-21 09:42:36,470 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_get_entry_count_harness.i[4504,4517] [2022-07-21 09:42:36,471 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_get_entry_count_harness.i[4564,4577] [2022-07-21 09:42:36,497 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-21 09:42:36,498 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-21 09:42:36,498 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-21 09:42:36,498 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-21 09:42:36,498 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-21 09:42:36,502 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-21 09:42:36,503 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-21 09:42:36,504 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-21 09:42:36,505 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-21 09:42:36,505 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-21 09:42:36,505 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-21 09:42:36,514 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-21 09:42:36,515 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-21 09:42:36,531 WARN L611 FunctionHandler]: implicit declaration of function __atomic_load_n [2022-07-21 09:42:36,532 WARN L611 FunctionHandler]: implicit declaration of function __atomic_store_n [2022-07-21 09:42:36,532 WARN L611 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2022-07-21 09:42:36,533 WARN L611 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2022-07-21 09:42:36,533 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2022-07-21 09:42:36,533 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2022-07-21 09:42:36,535 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2022-07-21 09:42:36,535 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2022-07-21 09:42:36,536 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2022-07-21 09:42:36,536 WARN L611 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2022-07-21 09:42:36,551 WARN L611 FunctionHandler]: implicit declaration of function __builtin_va_copy [2022-07-21 09:42:36,617 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-21 09:42:36,617 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-21 09:42:36,621 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-21 09:42:36,621 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-21 09:42:36,623 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-21 09:42:36,623 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-21 09:42:36,631 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-21 09:42:36,631 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-21 09:42:36,631 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-21 09:42:36,632 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-21 09:42:36,632 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-21 09:42:36,632 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-21 09:42:36,633 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-21 09:42:36,653 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-21 09:42:36,943 INFO L208 MainTranslator]: Completed translation [2022-07-21 09:42:36,943 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 09:42:36 WrapperNode [2022-07-21 09:42:36,943 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-21 09:42:36,944 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-21 09:42:36,944 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-21 09:42:36,944 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-21 09:42:36,948 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 09:42:36" (1/1) ... [2022-07-21 09:42:37,037 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 09:42:36" (1/1) ... [2022-07-21 09:42:37,094 INFO L137 Inliner]: procedures = 774, calls = 2433, calls flagged for inlining = 68, calls inlined = 11, statements flattened = 608 [2022-07-21 09:42:37,095 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-21 09:42:37,097 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-21 09:42:37,097 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-21 09:42:37,098 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-21 09:42:37,111 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 09:42:36" (1/1) ... [2022-07-21 09:42:37,112 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 09:42:36" (1/1) ... [2022-07-21 09:42:37,121 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 09:42:36" (1/1) ... [2022-07-21 09:42:37,122 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 09:42:36" (1/1) ... [2022-07-21 09:42:37,147 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 09:42:36" (1/1) ... [2022-07-21 09:42:37,149 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 09:42:36" (1/1) ... [2022-07-21 09:42:37,161 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 09:42:36" (1/1) ... [2022-07-21 09:42:37,168 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-21 09:42:37,168 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-21 09:42:37,168 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-21 09:42:37,169 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-21 09:42:37,169 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 09:42:36" (1/1) ... [2022-07-21 09:42:37,178 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-21 09:42:37,187 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-21 09:42:37,209 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 09:42:37,228 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 09:42:37,240 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2022-07-21 09:42:37,241 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-07-21 09:42:37,241 INFO L130 BoogieDeclarations]: Found specification of procedure aws_raise_error [2022-07-21 09:42:37,241 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_raise_error [2022-07-21 09:42:37,241 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2022-07-21 09:42:37,241 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2022-07-21 09:42:37,242 INFO L130 BoogieDeclarations]: Found specification of procedure hash_table_state_is_valid [2022-07-21 09:42:37,242 INFO L138 BoogieDeclarations]: Found implementation of procedure hash_table_state_is_valid [2022-07-21 09:42:37,242 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-07-21 09:42:37,243 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-21 09:42:37,243 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-07-21 09:42:37,243 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-21 09:42:37,243 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-21 09:42:37,243 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2022-07-21 09:42:37,243 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2022-07-21 09:42:37,244 INFO L130 BoogieDeclarations]: Found specification of procedure aws_mul_size_checked [2022-07-21 09:42:37,244 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_mul_size_checked [2022-07-21 09:42:37,244 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-07-21 09:42:37,244 INFO L130 BoogieDeclarations]: Found specification of procedure __CPROVER_overflow_plus [2022-07-21 09:42:37,244 INFO L138 BoogieDeclarations]: Found implementation of procedure __CPROVER_overflow_plus [2022-07-21 09:42:37,244 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-07-21 09:42:37,244 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_uint64_t [2022-07-21 09:42:37,244 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_uint64_t [2022-07-21 09:42:37,245 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-07-21 09:42:37,245 INFO L130 BoogieDeclarations]: Found specification of procedure aws_is_power_of_two [2022-07-21 09:42:37,245 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_is_power_of_two [2022-07-21 09:42:37,245 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-07-21 09:42:37,245 INFO L130 BoogieDeclarations]: Found specification of procedure aws_hash_table_get_entry_count [2022-07-21 09:42:37,245 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_hash_table_get_entry_count [2022-07-21 09:42:37,246 INFO L130 BoogieDeclarations]: Found specification of procedure hash_table_state_required_bytes [2022-07-21 09:42:37,246 INFO L138 BoogieDeclarations]: Found implementation of procedure hash_table_state_required_bytes [2022-07-21 09:42:37,246 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-07-21 09:42:37,246 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-07-21 09:42:37,246 INFO L130 BoogieDeclarations]: Found specification of procedure aws_hash_table_is_valid [2022-07-21 09:42:37,246 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_hash_table_is_valid [2022-07-21 09:42:37,246 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-07-21 09:42:37,247 INFO L130 BoogieDeclarations]: Found specification of procedure __CPROVER_overflow_mult [2022-07-21 09:42:37,247 INFO L138 BoogieDeclarations]: Found implementation of procedure __CPROVER_overflow_mult [2022-07-21 09:42:37,247 INFO L130 BoogieDeclarations]: Found specification of procedure aws_add_size_checked [2022-07-21 09:42:37,247 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_add_size_checked [2022-07-21 09:42:37,247 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-07-21 09:42:37,525 INFO L234 CfgBuilder]: Building ICFG [2022-07-21 09:42:37,526 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-21 09:42:38,043 INFO L275 CfgBuilder]: Performing block encoding [2022-07-21 09:42:38,048 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-21 09:42:38,048 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-07-21 09:42:38,050 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 09:42:38 BoogieIcfgContainer [2022-07-21 09:42:38,050 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-21 09:42:38,051 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-21 09:42:38,051 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-21 09:42:38,053 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-21 09:42:38,053 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.07 09:42:34" (1/3) ... [2022-07-21 09:42:38,054 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@a770785 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 09:42:38, skipping insertion in model container [2022-07-21 09:42:38,054 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 09:42:36" (2/3) ... [2022-07-21 09:42:38,055 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@a770785 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 09:42:38, skipping insertion in model container [2022-07-21 09:42:38,055 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 09:42:38" (3/3) ... [2022-07-21 09:42:38,056 INFO L111 eAbstractionObserver]: Analyzing ICFG aws_hash_table_get_entry_count_harness.i [2022-07-21 09:42:38,065 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-21 09:42:38,065 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-07-21 09:42:38,117 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-21 09:42:38,125 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@1a219639, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@6f6ef804 [2022-07-21 09:42:38,125 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-07-21 09:42:38,128 INFO L276 IsEmpty]: Start isEmpty. Operand has 115 states, 73 states have (on average 1.1506849315068493) internal successors, (84), 74 states have internal predecessors, (84), 26 states have call successors, (26), 14 states have call predecessors, (26), 14 states have return successors, (26), 26 states have call predecessors, (26), 26 states have call successors, (26) [2022-07-21 09:42:38,139 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2022-07-21 09:42:38,140 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 09:42:38,140 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 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] [2022-07-21 09:42:38,141 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 09:42:38,145 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 09:42:38,145 INFO L85 PathProgramCache]: Analyzing trace with hash 2047836461, now seen corresponding path program 1 times [2022-07-21 09:42:38,151 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 09:42:38,151 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1262432002] [2022-07-21 09:42:38,151 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 09:42:38,152 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 09:42:38,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:42:38,572 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-21 09:42:38,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:42:38,585 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-07-21 09:42:38,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:42:38,601 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-21 09:42:38,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:42:38,612 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-07-21 09:42:38,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:42:38,636 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2022-07-21 09:42:38,644 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 09:42:38,644 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1262432002] [2022-07-21 09:42:38,644 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unsupported non-linear arithmetic [2022-07-21 09:42:38,644 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [779641253] [2022-07-21 09:42:38,645 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 09:42:38,645 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-21 09:42:38,645 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-21 09:42:38,647 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 09:42:38,647 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 09:42:39,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:42:39,091 INFO L263 TraceCheckSpWp]: Trace formula consists of 2325 conjuncts, 1 conjunts are in the unsatisfiable core [2022-07-21 09:42:39,100 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 09:42:39,129 INFO L134 CoverageAnalysis]: Checked inductivity of 75 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 65 trivial. 0 not checked. [2022-07-21 09:42:39,131 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-21 09:42:39,131 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [779641253] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 09:42:39,131 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 09:42:39,132 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-07-21 09:42:39,133 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1527222284] [2022-07-21 09:42:39,134 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 09:42:39,137 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-07-21 09:42:39,138 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 09:42:39,159 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-07-21 09:42:39,160 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-21 09:42:39,161 INFO L87 Difference]: Start difference. First operand has 115 states, 73 states have (on average 1.1506849315068493) internal successors, (84), 74 states have internal predecessors, (84), 26 states have call successors, (26), 14 states have call predecessors, (26), 14 states have return successors, (26), 26 states have call predecessors, (26), 26 states have call successors, (26) Second operand has 2 states, 2 states have (on average 24.0) internal successors, (48), 2 states have internal predecessors, (48), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2022-07-21 09:42:39,181 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 09:42:39,181 INFO L93 Difference]: Finished difference Result 222 states and 274 transitions. [2022-07-21 09:42:39,182 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-07-21 09:42:39,183 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 24.0) internal successors, (48), 2 states have internal predecessors, (48), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) Word has length 106 [2022-07-21 09:42:39,183 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 09:42:39,188 INFO L225 Difference]: With dead ends: 222 [2022-07-21 09:42:39,188 INFO L226 Difference]: Without dead ends: 109 [2022-07-21 09:42:39,190 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 118 GetRequests, 117 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 09:42:39,192 INFO L413 NwaCegarLoop]: 134 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, 134 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 09:42:39,193 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 134 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-21 09:42:39,203 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 109 states. [2022-07-21 09:42:39,218 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 109 to 109. [2022-07-21 09:42:39,219 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 109 states, 68 states have (on average 1.1323529411764706) internal successors, (77), 69 states have internal predecessors, (77), 26 states have call successors, (26), 14 states have call predecessors, (26), 14 states have return successors, (25), 25 states have call predecessors, (25), 25 states have call successors, (25) [2022-07-21 09:42:39,220 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 109 states to 109 states and 128 transitions. [2022-07-21 09:42:39,221 INFO L78 Accepts]: Start accepts. Automaton has 109 states and 128 transitions. Word has length 106 [2022-07-21 09:42:39,221 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 09:42:39,221 INFO L495 AbstractCegarLoop]: Abstraction has 109 states and 128 transitions. [2022-07-21 09:42:39,222 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 24.0) internal successors, (48), 2 states have internal predecessors, (48), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2022-07-21 09:42:39,222 INFO L276 IsEmpty]: Start isEmpty. Operand 109 states and 128 transitions. [2022-07-21 09:42:39,224 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2022-07-21 09:42:39,224 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 09:42:39,224 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 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] [2022-07-21 09:42:39,251 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 09:42:39,436 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 09:42:39,436 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 09:42:39,436 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 09:42:39,437 INFO L85 PathProgramCache]: Analyzing trace with hash -637484239, now seen corresponding path program 1 times [2022-07-21 09:42:39,437 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 09:42:39,437 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1163933557] [2022-07-21 09:42:39,437 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 09:42:39,437 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 09:42:39,499 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-07-21 09:42:39,500 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2033183539] [2022-07-21 09:42:39,500 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 09:42:39,500 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-21 09:42:39,500 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-21 09:42:39,502 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 09:42:39,503 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 09:42:39,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:42:39,911 INFO L263 TraceCheckSpWp]: Trace formula consists of 2325 conjuncts, 7 conjunts are in the unsatisfiable core [2022-07-21 09:42:39,915 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 09:42:39,963 INFO L134 CoverageAnalysis]: Checked inductivity of 75 backedges. 45 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2022-07-21 09:42:39,964 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-21 09:42:39,964 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 09:42:39,964 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1163933557] [2022-07-21 09:42:39,964 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-07-21 09:42:39,964 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2033183539] [2022-07-21 09:42:39,964 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2033183539] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 09:42:39,964 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 09:42:39,964 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-07-21 09:42:39,965 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [417740179] [2022-07-21 09:42:39,965 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 09:42:39,966 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-21 09:42:39,967 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 09:42:39,967 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-21 09:42:39,967 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-21 09:42:39,968 INFO L87 Difference]: Start difference. First operand 109 states and 128 transitions. Second operand has 5 states, 5 states have (on average 11.6) internal successors, (58), 5 states have internal predecessors, (58), 2 states have call successors, (18), 2 states have call predecessors, (18), 3 states have return successors, (17), 3 states have call predecessors, (17), 2 states have call successors, (17) [2022-07-21 09:42:40,021 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 09:42:40,023 INFO L93 Difference]: Finished difference Result 211 states and 248 transitions. [2022-07-21 09:42:40,024 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-21 09:42:40,024 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.6) internal successors, (58), 5 states have internal predecessors, (58), 2 states have call successors, (18), 2 states have call predecessors, (18), 3 states have return successors, (17), 3 states have call predecessors, (17), 2 states have call successors, (17) Word has length 106 [2022-07-21 09:42:40,024 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 09:42:40,027 INFO L225 Difference]: With dead ends: 211 [2022-07-21 09:42:40,027 INFO L226 Difference]: Without dead ends: 114 [2022-07-21 09:42:40,031 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 106 GetRequests, 102 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 09:42:40,033 INFO L413 NwaCegarLoop]: 125 mSDtfsCounter, 2 mSDsluCounter, 370 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 495 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-21 09:42:40,035 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 495 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-21 09:42:40,036 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 114 states. [2022-07-21 09:42:40,044 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 114 to 114. [2022-07-21 09:42:40,047 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 114 states, 72 states have (on average 1.125) internal successors, (81), 73 states have internal predecessors, (81), 26 states have call successors, (26), 14 states have call predecessors, (26), 15 states have return successors, (26), 26 states have call predecessors, (26), 25 states have call successors, (26) [2022-07-21 09:42:40,049 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 114 states to 114 states and 133 transitions. [2022-07-21 09:42:40,049 INFO L78 Accepts]: Start accepts. Automaton has 114 states and 133 transitions. Word has length 106 [2022-07-21 09:42:40,051 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 09:42:40,054 INFO L495 AbstractCegarLoop]: Abstraction has 114 states and 133 transitions. [2022-07-21 09:42:40,056 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.6) internal successors, (58), 5 states have internal predecessors, (58), 2 states have call successors, (18), 2 states have call predecessors, (18), 3 states have return successors, (17), 3 states have call predecessors, (17), 2 states have call successors, (17) [2022-07-21 09:42:40,056 INFO L276 IsEmpty]: Start isEmpty. Operand 114 states and 133 transitions. [2022-07-21 09:42:40,057 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2022-07-21 09:42:40,061 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 09:42:40,061 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 2, 2, 2, 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] [2022-07-21 09:42:40,084 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 09:42:40,270 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 09:42:40,271 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 09:42:40,271 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 09:42:40,272 INFO L85 PathProgramCache]: Analyzing trace with hash -810988303, now seen corresponding path program 1 times [2022-07-21 09:42:40,272 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 09:42:40,272 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1855469241] [2022-07-21 09:42:40,272 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 09:42:40,272 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 09:42:40,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:42:40,436 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-21 09:42:40,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:42:40,444 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-07-21 09:42:40,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:42:40,469 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-21 09:42:40,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:42:40,483 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-07-21 09:42:40,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:42:40,506 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2022-07-21 09:42:40,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:42:40,530 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 09:42:40,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:42:40,546 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 09:42:40,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:42:40,557 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 09:42:40,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:42:40,565 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2022-07-21 09:42:40,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:42:40,576 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2022-07-21 09:42:40,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:42:40,604 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 09:42:40,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:42:40,610 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-07-21 09:42:40,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:42:40,681 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2022-07-21 09:42:40,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:42:40,687 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2022-07-21 09:42:40,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:42:40,699 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 09:42:40,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:42:40,707 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 09:42:40,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:42:40,715 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 09:42:40,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:42:40,720 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2022-07-21 09:42:40,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:42:40,725 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2022-07-21 09:42:40,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:42:40,730 INFO L134 CoverageAnalysis]: Checked inductivity of 81 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 81 trivial. 0 not checked. [2022-07-21 09:42:40,731 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 09:42:40,731 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1855469241] [2022-07-21 09:42:40,731 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1855469241] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 09:42:40,731 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 09:42:40,731 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-07-21 09:42:40,731 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [120299940] [2022-07-21 09:42:40,731 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 09:42:40,732 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-07-21 09:42:40,732 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 09:42:40,732 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-07-21 09:42:40,733 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=149, Unknown=0, NotChecked=0, Total=182 [2022-07-21 09:42:40,733 INFO L87 Difference]: Start difference. First operand 114 states and 133 transitions. Second operand has 14 states, 14 states have (on average 3.5714285714285716) internal successors, (50), 10 states have internal predecessors, (50), 4 states have call successors, (17), 5 states have call predecessors, (17), 3 states have return successors, (16), 4 states have call predecessors, (16), 4 states have call successors, (16) [2022-07-21 09:42:41,380 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 09:42:41,380 INFO L93 Difference]: Finished difference Result 220 states and 258 transitions. [2022-07-21 09:42:41,380 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-21 09:42:41,381 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 3.5714285714285716) internal successors, (50), 10 states have internal predecessors, (50), 4 states have call successors, (17), 5 states have call predecessors, (17), 3 states have return successors, (16), 4 states have call predecessors, (16), 4 states have call successors, (16) Word has length 118 [2022-07-21 09:42:41,381 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 09:42:41,383 INFO L225 Difference]: With dead ends: 220 [2022-07-21 09:42:41,383 INFO L226 Difference]: Without dead ends: 130 [2022-07-21 09:42:41,383 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=102, Invalid=360, Unknown=0, NotChecked=0, Total=462 [2022-07-21 09:42:41,384 INFO L413 NwaCegarLoop]: 108 mSDtfsCounter, 88 mSDsluCounter, 516 mSDsCounter, 0 mSdLazyCounter, 729 mSolverCounterSat, 57 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 98 SdHoareTripleChecker+Valid, 624 SdHoareTripleChecker+Invalid, 786 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 57 IncrementalHoareTripleChecker+Valid, 729 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-07-21 09:42:41,384 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [98 Valid, 624 Invalid, 786 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [57 Valid, 729 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-07-21 09:42:41,384 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 130 states. [2022-07-21 09:42:41,392 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 130 to 119. [2022-07-21 09:42:41,392 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 119 states, 76 states have (on average 1.131578947368421) internal successors, (86), 78 states have internal predecessors, (86), 26 states have call successors, (26), 14 states have call predecessors, (26), 16 states have return successors, (27), 26 states have call predecessors, (27), 25 states have call successors, (27) [2022-07-21 09:42:41,393 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 119 states to 119 states and 139 transitions. [2022-07-21 09:42:41,393 INFO L78 Accepts]: Start accepts. Automaton has 119 states and 139 transitions. Word has length 118 [2022-07-21 09:42:41,393 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 09:42:41,393 INFO L495 AbstractCegarLoop]: Abstraction has 119 states and 139 transitions. [2022-07-21 09:42:41,394 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 3.5714285714285716) internal successors, (50), 10 states have internal predecessors, (50), 4 states have call successors, (17), 5 states have call predecessors, (17), 3 states have return successors, (16), 4 states have call predecessors, (16), 4 states have call successors, (16) [2022-07-21 09:42:41,394 INFO L276 IsEmpty]: Start isEmpty. Operand 119 states and 139 transitions. [2022-07-21 09:42:41,395 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2022-07-21 09:42:41,395 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 09:42:41,396 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 2, 2, 2, 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] [2022-07-21 09:42:41,396 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-07-21 09:42:41,396 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 09:42:41,396 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 09:42:41,397 INFO L85 PathProgramCache]: Analyzing trace with hash -367087629, now seen corresponding path program 1 times [2022-07-21 09:42:41,397 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 09:42:41,397 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [146633351] [2022-07-21 09:42:41,397 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 09:42:41,397 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 09:42:41,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:42:41,513 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-21 09:42:41,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:42:41,526 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-07-21 09:42:41,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:42:41,533 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-21 09:42:41,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:42:41,541 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-07-21 09:42:41,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:42:41,555 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2022-07-21 09:42:41,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:42:41,567 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 09:42:41,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:42:41,583 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 09:42:41,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:42:41,595 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 09:42:41,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:42:41,600 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2022-07-21 09:42:41,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:42:41,607 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2022-07-21 09:42:41,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:42:41,614 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 09:42:41,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:42:41,619 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-07-21 09:42:41,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:42:41,649 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2022-07-21 09:42:41,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:42:41,657 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2022-07-21 09:42:41,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:42:41,671 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 09:42:41,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:42:41,679 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 09:42:41,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:42:41,701 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 09:42:41,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:42:41,707 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2022-07-21 09:42:41,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:42:41,715 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2022-07-21 09:42:41,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:42:41,724 INFO L134 CoverageAnalysis]: Checked inductivity of 81 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 81 trivial. 0 not checked. [2022-07-21 09:42:41,725 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 09:42:41,725 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [146633351] [2022-07-21 09:42:41,725 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [146633351] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 09:42:41,725 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 09:42:41,725 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-21 09:42:41,725 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2104748270] [2022-07-21 09:42:41,725 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 09:42:41,726 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-07-21 09:42:41,726 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 09:42:41,729 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-07-21 09:42:41,729 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2022-07-21 09:42:41,729 INFO L87 Difference]: Start difference. First operand 119 states and 139 transitions. Second operand has 8 states, 8 states have (on average 6.25) internal successors, (50), 5 states have internal predecessors, (50), 3 states have call successors, (17), 5 states have call predecessors, (17), 2 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) [2022-07-21 09:42:42,040 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 09:42:42,040 INFO L93 Difference]: Finished difference Result 227 states and 266 transitions. [2022-07-21 09:42:42,041 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-07-21 09:42:42,041 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 6.25) internal successors, (50), 5 states have internal predecessors, (50), 3 states have call successors, (17), 5 states have call predecessors, (17), 2 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) Word has length 118 [2022-07-21 09:42:42,041 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 09:42:42,042 INFO L225 Difference]: With dead ends: 227 [2022-07-21 09:42:42,042 INFO L226 Difference]: Without dead ends: 125 [2022-07-21 09:42:42,043 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2022-07-21 09:42:42,043 INFO L413 NwaCegarLoop]: 120 mSDtfsCounter, 98 mSDsluCounter, 243 mSDsCounter, 0 mSdLazyCounter, 302 mSolverCounterSat, 70 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 110 SdHoareTripleChecker+Valid, 363 SdHoareTripleChecker+Invalid, 372 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 70 IncrementalHoareTripleChecker+Valid, 302 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-07-21 09:42:42,044 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [110 Valid, 363 Invalid, 372 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [70 Valid, 302 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-07-21 09:42:42,044 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 125 states. [2022-07-21 09:42:42,051 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 125 to 117. [2022-07-21 09:42:42,051 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 117 states, 74 states have (on average 1.1081081081081081) internal successors, (82), 76 states have internal predecessors, (82), 26 states have call successors, (26), 14 states have call predecessors, (26), 16 states have return successors, (27), 26 states have call predecessors, (27), 25 states have call successors, (27) [2022-07-21 09:42:42,052 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 117 states to 117 states and 135 transitions. [2022-07-21 09:42:42,052 INFO L78 Accepts]: Start accepts. Automaton has 117 states and 135 transitions. Word has length 118 [2022-07-21 09:42:42,052 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 09:42:42,052 INFO L495 AbstractCegarLoop]: Abstraction has 117 states and 135 transitions. [2022-07-21 09:42:42,052 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 6.25) internal successors, (50), 5 states have internal predecessors, (50), 3 states have call successors, (17), 5 states have call predecessors, (17), 2 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) [2022-07-21 09:42:42,052 INFO L276 IsEmpty]: Start isEmpty. Operand 117 states and 135 transitions. [2022-07-21 09:42:42,067 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2022-07-21 09:42:42,067 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 09:42:42,067 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 2, 2, 2, 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] [2022-07-21 09:42:42,068 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-07-21 09:42:42,068 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 09:42:42,068 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 09:42:42,068 INFO L85 PathProgramCache]: Analyzing trace with hash 1450180354, now seen corresponding path program 1 times [2022-07-21 09:42:42,069 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 09:42:42,069 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1410916448] [2022-07-21 09:42:42,069 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 09:42:42,069 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 09:42:42,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:42:42,166 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-21 09:42:42,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:42:42,173 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-07-21 09:42:42,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:42:42,179 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-21 09:42:42,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:42:42,186 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-07-21 09:42:42,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:42:42,202 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2022-07-21 09:42:42,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:42:42,216 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 09:42:42,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:42:42,228 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 09:42:42,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:42:42,245 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 09:42:42,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:42:42,250 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2022-07-21 09:42:42,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:42:42,255 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2022-07-21 09:42:42,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:42:42,260 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 09:42:42,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:42:42,265 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-07-21 09:42:42,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:42:42,303 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-07-21 09:42:42,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:42:42,330 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2022-07-21 09:42:42,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:42:42,336 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2022-07-21 09:42:42,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:42:42,349 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 09:42:42,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:42:42,356 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 09:42:42,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:42:42,361 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 09:42:42,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:42:42,366 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2022-07-21 09:42:42,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:42:42,370 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2022-07-21 09:42:42,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:42:42,375 INFO L134 CoverageAnalysis]: Checked inductivity of 81 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 81 trivial. 0 not checked. [2022-07-21 09:42:42,375 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 09:42:42,375 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1410916448] [2022-07-21 09:42:42,375 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1410916448] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 09:42:42,375 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 09:42:42,375 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-07-21 09:42:42,376 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1481921213] [2022-07-21 09:42:42,376 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 09:42:42,376 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-07-21 09:42:42,377 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 09:42:42,377 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-07-21 09:42:42,377 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2022-07-21 09:42:42,377 INFO L87 Difference]: Start difference. First operand 117 states and 135 transitions. Second operand has 10 states, 9 states have (on average 6.0) internal successors, (54), 7 states have internal predecessors, (54), 3 states have call successors, (18), 5 states have call predecessors, (18), 3 states have return successors, (17), 2 states have call predecessors, (17), 3 states have call successors, (17) [2022-07-21 09:42:42,842 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 09:42:42,843 INFO L93 Difference]: Finished difference Result 220 states and 255 transitions. [2022-07-21 09:42:42,843 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-07-21 09:42:42,843 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 6.0) internal successors, (54), 7 states have internal predecessors, (54), 3 states have call successors, (18), 5 states have call predecessors, (18), 3 states have return successors, (17), 2 states have call predecessors, (17), 3 states have call successors, (17) Word has length 124 [2022-07-21 09:42:42,845 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 09:42:42,845 INFO L225 Difference]: With dead ends: 220 [2022-07-21 09:42:42,846 INFO L226 Difference]: Without dead ends: 125 [2022-07-21 09:42:42,846 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2022-07-21 09:42:42,847 INFO L413 NwaCegarLoop]: 113 mSDtfsCounter, 125 mSDsluCounter, 388 mSDsCounter, 0 mSdLazyCounter, 406 mSolverCounterSat, 99 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 126 SdHoareTripleChecker+Valid, 501 SdHoareTripleChecker+Invalid, 505 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 99 IncrementalHoareTripleChecker+Valid, 406 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-07-21 09:42:42,847 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [126 Valid, 501 Invalid, 505 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [99 Valid, 406 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-07-21 09:42:42,847 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 125 states. [2022-07-21 09:42:42,853 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 125 to 117. [2022-07-21 09:42:42,854 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 117 states, 74 states have (on average 1.0945945945945945) internal successors, (81), 76 states have internal predecessors, (81), 26 states have call successors, (26), 14 states have call predecessors, (26), 16 states have return successors, (27), 26 states have call predecessors, (27), 25 states have call successors, (27) [2022-07-21 09:42:42,854 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 117 states to 117 states and 134 transitions. [2022-07-21 09:42:42,854 INFO L78 Accepts]: Start accepts. Automaton has 117 states and 134 transitions. Word has length 124 [2022-07-21 09:42:42,854 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 09:42:42,854 INFO L495 AbstractCegarLoop]: Abstraction has 117 states and 134 transitions. [2022-07-21 09:42:42,854 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 6.0) internal successors, (54), 7 states have internal predecessors, (54), 3 states have call successors, (18), 5 states have call predecessors, (18), 3 states have return successors, (17), 2 states have call predecessors, (17), 3 states have call successors, (17) [2022-07-21 09:42:42,855 INFO L276 IsEmpty]: Start isEmpty. Operand 117 states and 134 transitions. [2022-07-21 09:42:42,855 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2022-07-21 09:42:42,855 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 09:42:42,855 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 2, 2, 2, 2, 2, 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] [2022-07-21 09:42:42,856 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-07-21 09:42:42,856 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 09:42:42,856 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 09:42:42,856 INFO L85 PathProgramCache]: Analyzing trace with hash -407882531, now seen corresponding path program 1 times [2022-07-21 09:42:42,856 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 09:42:42,856 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [172649779] [2022-07-21 09:42:42,857 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 09:42:42,857 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 09:42:43,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:42:43,145 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-21 09:42:43,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:42:43,150 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-07-21 09:42:43,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:42:43,155 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-21 09:42:43,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:42:43,160 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-07-21 09:42:43,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:42:43,174 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2022-07-21 09:42:43,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:42:43,195 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 09:42:43,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:42:43,207 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 09:42:43,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:42:43,217 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 09:42:43,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:42:43,222 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2022-07-21 09:42:43,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:42:43,246 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2022-07-21 09:42:43,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:42:43,253 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 09:42:43,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:42:43,258 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-07-21 09:42:43,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:42:43,272 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-07-21 09:42:43,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:42:43,284 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-21 09:42:43,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:42:43,290 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-07-21 09:42:43,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:42:43,302 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2022-07-21 09:42:43,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:42:43,311 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 09:42:43,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:42:43,318 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 09:42:43,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:42:43,324 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 09:42:43,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:42:43,328 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2022-07-21 09:42:43,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:42:43,333 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2022-07-21 09:42:43,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:42:43,338 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 6 proven. 11 refuted. 0 times theorem prover too weak. 67 trivial. 0 not checked. [2022-07-21 09:42:43,338 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 09:42:43,338 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [172649779] [2022-07-21 09:42:43,338 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [172649779] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-21 09:42:43,338 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1742739601] [2022-07-21 09:42:43,339 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 09:42:43,339 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-21 09:42:43,339 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-21 09:42:43,340 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 09:42:43,341 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 09:42:43,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:42:43,715 INFO L263 TraceCheckSpWp]: Trace formula consists of 2387 conjuncts, 107 conjunts are in the unsatisfiable core [2022-07-21 09:42:43,721 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 09:42:43,871 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 66 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2022-07-21 09:42:43,871 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-21 09:42:43,872 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1742739601] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 09:42:43,872 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-21 09:42:43,872 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [9] total 12 [2022-07-21 09:42:43,872 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1994683764] [2022-07-21 09:42:43,872 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 09:42:43,873 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-21 09:42:43,873 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 09:42:43,873 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-21 09:42:43,874 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=106, Unknown=0, NotChecked=0, Total=132 [2022-07-21 09:42:43,874 INFO L87 Difference]: Start difference. First operand 117 states and 134 transitions. Second operand has 7 states, 7 states have (on average 11.0) internal successors, (77), 7 states have internal predecessors, (77), 4 states have call successors, (22), 2 states have call predecessors, (22), 4 states have return successors, (21), 4 states have call predecessors, (21), 4 states have call successors, (21) [2022-07-21 09:42:43,963 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 09:42:43,963 INFO L93 Difference]: Finished difference Result 224 states and 255 transitions. [2022-07-21 09:42:43,963 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-21 09:42:43,964 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.0) internal successors, (77), 7 states have internal predecessors, (77), 4 states have call successors, (22), 2 states have call predecessors, (22), 4 states have return successors, (21), 4 states have call predecessors, (21), 4 states have call successors, (21) Word has length 129 [2022-07-21 09:42:43,964 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 09:42:43,965 INFO L225 Difference]: With dead ends: 224 [2022-07-21 09:42:43,965 INFO L226 Difference]: Without dead ends: 119 [2022-07-21 09:42:43,965 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 176 GetRequests, 165 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156 [2022-07-21 09:42:43,966 INFO L413 NwaCegarLoop]: 114 mSDtfsCounter, 18 mSDsluCounter, 407 mSDsCounter, 0 mSdLazyCounter, 102 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 32 SdHoareTripleChecker+Valid, 521 SdHoareTripleChecker+Invalid, 103 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 102 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-21 09:42:43,966 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [32 Valid, 521 Invalid, 103 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 102 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-21 09:42:43,966 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 119 states. [2022-07-21 09:42:43,971 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 119 to 119. [2022-07-21 09:42:43,971 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 119 states, 75 states have (on average 1.0933333333333333) internal successors, (82), 78 states have internal predecessors, (82), 26 states have call successors, (26), 14 states have call predecessors, (26), 17 states have return successors, (28), 26 states have call predecessors, (28), 25 states have call successors, (28) [2022-07-21 09:42:43,972 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 119 states to 119 states and 136 transitions. [2022-07-21 09:42:43,972 INFO L78 Accepts]: Start accepts. Automaton has 119 states and 136 transitions. Word has length 129 [2022-07-21 09:42:43,972 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 09:42:43,972 INFO L495 AbstractCegarLoop]: Abstraction has 119 states and 136 transitions. [2022-07-21 09:42:43,973 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.0) internal successors, (77), 7 states have internal predecessors, (77), 4 states have call successors, (22), 2 states have call predecessors, (22), 4 states have return successors, (21), 4 states have call predecessors, (21), 4 states have call successors, (21) [2022-07-21 09:42:43,973 INFO L276 IsEmpty]: Start isEmpty. Operand 119 states and 136 transitions. [2022-07-21 09:42:43,974 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-07-21 09:42:43,974 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 09:42:43,974 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 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] [2022-07-21 09:42:43,996 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 09:42:44,185 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-21 09:42:44,186 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 09:42:44,186 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 09:42:44,186 INFO L85 PathProgramCache]: Analyzing trace with hash 118090552, now seen corresponding path program 1 times [2022-07-21 09:42:44,186 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 09:42:44,186 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [361585624] [2022-07-21 09:42:44,186 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 09:42:44,186 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 09:42:44,232 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-07-21 09:42:44,232 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [389573990] [2022-07-21 09:42:44,232 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 09:42:44,232 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-21 09:42:44,232 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-21 09:42:44,244 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 09:42:44,245 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 09:42:44,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:42:44,620 INFO L263 TraceCheckSpWp]: Trace formula consists of 2492 conjuncts, 21 conjunts are in the unsatisfiable core [2022-07-21 09:42:44,624 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 09:42:44,677 INFO L134 CoverageAnalysis]: Checked inductivity of 78 backedges. 18 proven. 8 refuted. 0 times theorem prover too weak. 52 trivial. 0 not checked. [2022-07-21 09:42:44,677 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-21 09:42:44,976 INFO L134 CoverageAnalysis]: Checked inductivity of 78 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 61 trivial. 0 not checked. [2022-07-21 09:42:44,976 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 09:42:44,976 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [361585624] [2022-07-21 09:42:44,976 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-07-21 09:42:44,977 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [389573990] [2022-07-21 09:42:44,977 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [389573990] provided 1 perfect and 1 imperfect interpolant sequences [2022-07-21 09:42:44,977 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-21 09:42:44,977 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [8] total 13 [2022-07-21 09:42:44,977 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1781709460] [2022-07-21 09:42:44,977 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 09:42:44,977 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-07-21 09:42:44,977 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 09:42:44,977 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-07-21 09:42:44,978 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=128, Unknown=0, NotChecked=0, Total=156 [2022-07-21 09:42:44,978 INFO L87 Difference]: Start difference. First operand 119 states and 136 transitions. Second operand has 8 states, 8 states have (on average 8.625) internal successors, (69), 7 states have internal predecessors, (69), 3 states have call successors, (21), 2 states have call predecessors, (21), 3 states have return successors, (20), 3 states have call predecessors, (20), 3 states have call successors, (20) [2022-07-21 09:42:45,027 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 09:42:45,027 INFO L93 Difference]: Finished difference Result 169 states and 190 transitions. [2022-07-21 09:42:45,028 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-21 09:42:45,028 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 8.625) internal successors, (69), 7 states have internal predecessors, (69), 3 states have call successors, (21), 2 states have call predecessors, (21), 3 states have return successors, (20), 3 states have call predecessors, (20), 3 states have call successors, (20) Word has length 135 [2022-07-21 09:42:45,028 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 09:42:45,029 INFO L225 Difference]: With dead ends: 169 [2022-07-21 09:42:45,029 INFO L226 Difference]: Without dead ends: 117 [2022-07-21 09:42:45,029 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 268 GetRequests, 256 SyntacticMatches, 1 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=28, Invalid=128, Unknown=0, NotChecked=0, Total=156 [2022-07-21 09:42:45,029 INFO L413 NwaCegarLoop]: 117 mSDtfsCounter, 3 mSDsluCounter, 666 mSDsCounter, 0 mSdLazyCounter, 90 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 783 SdHoareTripleChecker+Invalid, 92 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 90 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-21 09:42:45,030 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 783 Invalid, 92 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 90 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-21 09:42:45,030 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 117 states. [2022-07-21 09:42:45,034 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 117 to 112. [2022-07-21 09:42:45,034 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 112 states, 70 states have (on average 1.0714285714285714) internal successors, (75), 72 states have internal predecessors, (75), 26 states have call successors, (26), 14 states have call predecessors, (26), 15 states have return successors, (26), 25 states have call predecessors, (26), 25 states have call successors, (26) [2022-07-21 09:42:45,034 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 112 states to 112 states and 127 transitions. [2022-07-21 09:42:45,035 INFO L78 Accepts]: Start accepts. Automaton has 112 states and 127 transitions. Word has length 135 [2022-07-21 09:42:45,035 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 09:42:45,035 INFO L495 AbstractCegarLoop]: Abstraction has 112 states and 127 transitions. [2022-07-21 09:42:45,035 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 8.625) internal successors, (69), 7 states have internal predecessors, (69), 3 states have call successors, (21), 2 states have call predecessors, (21), 3 states have return successors, (20), 3 states have call predecessors, (20), 3 states have call successors, (20) [2022-07-21 09:42:45,035 INFO L276 IsEmpty]: Start isEmpty. Operand 112 states and 127 transitions. [2022-07-21 09:42:45,036 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2022-07-21 09:42:45,036 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 09:42:45,036 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2022-07-21 09:42:45,071 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 09:42:45,251 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-21 09:42:45,251 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 09:42:45,252 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 09:42:45,252 INFO L85 PathProgramCache]: Analyzing trace with hash -1559546925, now seen corresponding path program 1 times [2022-07-21 09:42:45,252 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 09:42:45,252 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1475824906] [2022-07-21 09:42:45,252 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 09:42:45,252 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 09:42:45,296 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-07-21 09:42:45,296 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [684182774] [2022-07-21 09:42:45,297 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 09:42:45,297 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-21 09:42:45,297 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-21 09:42:45,298 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 09:42:45,299 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 09:42:45,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:42:45,758 INFO L263 TraceCheckSpWp]: Trace formula consists of 2597 conjuncts, 203 conjunts are in the unsatisfiable core [2022-07-21 09:42:45,771 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 09:42:45,808 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 09:42:46,020 INFO L356 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-07-21 09:42:46,021 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 09:42:46,057 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 09:42:46,347 INFO L356 Elim1Store]: treesize reduction 130, result has 17.2 percent of original size [2022-07-21 09:42:46,348 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 2 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 11 case distinctions, treesize of input 115 treesize of output 121 [2022-07-21 09:42:46,705 INFO L356 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2022-07-21 09:42:46,706 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 11 [2022-07-21 09:42:46,760 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-21 09:42:46,770 INFO L356 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2022-07-21 09:42:46,770 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 22 treesize of output 29 [2022-07-21 09:42:46,832 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 09:42:46,837 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-07-21 09:42:46,841 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-21 09:42:46,841 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-21 09:42:46,843 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 26 [2022-07-21 09:42:47,383 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-21 09:42:47,430 INFO L356 Elim1Store]: treesize reduction 126, result has 25.9 percent of original size [2022-07-21 09:42:47,430 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 9 case distinctions, treesize of input 38 treesize of output 65 [2022-07-21 09:42:47,523 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 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 33 treesize of output 17 [2022-07-21 09:42:47,528 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-21 09:42:47,528 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 13 [2022-07-21 09:42:47,532 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 09:42:47,602 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 09:42:47,665 WARN L855 $PredicateComparison]: unable to prove that (and (exists ((v_ArrVal_820 (Array Int Int))) (= |c_#memory_int| (store |c_old(#memory_int)| |c_aws_mul_size_checked_#in~r#1.base| v_ArrVal_820))) (exists ((v_ArrVal_818 (Array Int Int))) (= (store |c_old(#memory_$Pointer$.offset)| |c_aws_mul_size_checked_#in~r#1.base| v_ArrVal_818) |c_#memory_$Pointer$.offset|)) (exists ((v_ArrVal_819 (Array Int Int))) (= (store |c_old(#memory_$Pointer$.base)| |c_aws_mul_size_checked_#in~r#1.base| v_ArrVal_819) |c_#memory_$Pointer$.base|))) is different from true [2022-07-21 09:42:47,783 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 09:42:47,826 WARN L855 $PredicateComparison]: unable to prove that (and (exists ((v_ArrVal_822 (Array Int Int))) (= |c_#memory_$Pointer$.offset| (store |c_old(#memory_$Pointer$.offset)| |c_aws_add_size_checked_#in~r#1.base| v_ArrVal_822))) (exists ((v_ArrVal_821 (Array Int Int))) (= (store |c_old(#memory_int)| |c_aws_add_size_checked_#in~r#1.base| v_ArrVal_821) |c_#memory_int|)) (exists ((v_ArrVal_823 (Array Int Int))) (= |c_#memory_$Pointer$.base| (store |c_old(#memory_$Pointer$.base)| |c_aws_add_size_checked_#in~r#1.base| v_ArrVal_823)))) is different from true [2022-07-21 09:42:47,992 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-21 09:42:47,993 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-21 09:42:47,993 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 26 [2022-07-21 09:42:48,000 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-21 09:42:48,001 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 11 [2022-07-21 09:42:48,006 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-21 09:42:48,007 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-21 09:42:48,008 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 5 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 60 treesize of output 54 [2022-07-21 09:42:48,013 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-21 09:42:48,015 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-21 09:42:48,028 INFO L356 Elim1Store]: treesize reduction 12, result has 52.0 percent of original size [2022-07-21 09:42:48,029 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 7 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 3 case distinctions, treesize of input 30 treesize of output 28 [2022-07-21 09:42:48,380 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-07-21 09:42:48,380 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 53 treesize of output 45 [2022-07-21 09:42:48,384 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 27 treesize of output 7 [2022-07-21 09:42:48,493 INFO L134 CoverageAnalysis]: Checked inductivity of 90 backedges. 28 proven. 52 refuted. 0 times theorem prover too weak. 4 trivial. 6 not checked. [2022-07-21 09:42:48,493 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-21 09:42:49,116 INFO L356 Elim1Store]: treesize reduction 8, result has 77.1 percent of original size [2022-07-21 09:42:49,116 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 3574 treesize of output 3089 [2022-07-21 09:42:49,142 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-07-21 09:42:49,142 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 3062 treesize of output 2796 [2022-07-21 09:42:49,164 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-07-21 09:42:49,164 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 2774 treesize of output 2220 [2022-07-21 09:44:42,341 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 09:44:42,341 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1475824906] [2022-07-21 09:44:42,341 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-07-21 09:44:42,341 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [684182774] [2022-07-21 09:44:42,341 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [684182774] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-21 09:44:42,341 INFO L184 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2022-07-21 09:44:42,341 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [41] total 41 [2022-07-21 09:44:42,341 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1950957940] [2022-07-21 09:44:42,341 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2022-07-21 09:44:42,342 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 41 states [2022-07-21 09:44:42,342 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 09:44:42,342 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 41 interpolants. [2022-07-21 09:44:42,343 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=152, Invalid=2006, Unknown=12, NotChecked=182, Total=2352 [2022-07-21 09:44:42,343 INFO L87 Difference]: Start difference. First operand 112 states and 127 transitions. Second operand has 41 states, 34 states have (on average 2.676470588235294) internal successors, (91), 35 states have internal predecessors, (91), 18 states have call successors, (24), 9 states have call predecessors, (24), 13 states have return successors, (23), 17 states have call predecessors, (23), 17 states have call successors, (23) [2022-07-21 09:44:42,669 WARN L855 $PredicateComparison]: unable to prove that (and (exists ((v_ArrVal_820 (Array Int Int))) (= |c_#memory_int| (store |c_old(#memory_int)| |c_aws_mul_size_checked_#in~r#1.base| v_ArrVal_820))) (exists ((v_ArrVal_818 (Array Int Int))) (= (store |c_old(#memory_$Pointer$.offset)| |c_aws_mul_size_checked_#in~r#1.base| v_ArrVal_818) |c_#memory_$Pointer$.offset|)) (exists ((|v___CPROVER_overflow_mult_~#c~1.base_73| Int) (v_ArrVal_806 Int)) (and (= (select |c_old(#valid)| |v___CPROVER_overflow_mult_~#c~1.base_73|) 0) (= |c_#valid| (store |c_old(#valid)| |v___CPROVER_overflow_mult_~#c~1.base_73| v_ArrVal_806)))) (exists ((v_ArrVal_819 (Array Int Int))) (= (store |c_old(#memory_$Pointer$.base)| |c_aws_mul_size_checked_#in~r#1.base| v_ArrVal_819) |c_#memory_$Pointer$.base|))) is different from true [2022-07-21 09:44:42,887 WARN L855 $PredicateComparison]: unable to prove that (and (exists ((v_ArrVal_822 (Array Int Int))) (= |c_#memory_$Pointer$.offset| (store |c_old(#memory_$Pointer$.offset)| |c_aws_add_size_checked_#in~r#1.base| v_ArrVal_822))) (exists ((v_ArrVal_821 (Array Int Int))) (= (store |c_old(#memory_int)| |c_aws_add_size_checked_#in~r#1.base| v_ArrVal_821) |c_#memory_int|)) (exists ((|v___CPROVER_overflow_plus_~#c~0.base_19| Int)) (and (= |c_#valid| (store |c_old(#valid)| |v___CPROVER_overflow_plus_~#c~0.base_19| 0)) (= (select |c_old(#valid)| |v___CPROVER_overflow_plus_~#c~0.base_19|) 0))) (exists ((v_ArrVal_823 (Array Int Int))) (= |c_#memory_$Pointer$.base| (store |c_old(#memory_$Pointer$.base)| |c_aws_add_size_checked_#in~r#1.base| v_ArrVal_823)))) is different from true [2022-07-21 09:44:43,684 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 09:44:43,684 INFO L93 Difference]: Finished difference Result 214 states and 239 transitions. [2022-07-21 09:44:43,685 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2022-07-21 09:44:43,685 INFO L78 Accepts]: Start accepts. Automaton has has 41 states, 34 states have (on average 2.676470588235294) internal successors, (91), 35 states have internal predecessors, (91), 18 states have call successors, (24), 9 states have call predecessors, (24), 13 states have return successors, (23), 17 states have call predecessors, (23), 17 states have call successors, (23) Word has length 141 [2022-07-21 09:44:43,685 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 09:44:43,686 INFO L225 Difference]: With dead ends: 214 [2022-07-21 09:44:43,686 INFO L226 Difference]: Without dead ends: 209 [2022-07-21 09:44:43,688 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 187 GetRequests, 107 SyntacticMatches, 15 SemanticMatches, 65 ConstructedPredicates, 4 IntricatePredicates, 0 DeprecatedPredicates, 1231 ImplicationChecksByTransitivity, 2.4s TimeCoverageRelationStatistics Valid=262, Invalid=3643, Unknown=17, NotChecked=500, Total=4422 [2022-07-21 09:44:43,688 INFO L413 NwaCegarLoop]: 114 mSDtfsCounter, 127 mSDsluCounter, 827 mSDsCounter, 0 mSdLazyCounter, 537 mSolverCounterSat, 82 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 133 SdHoareTripleChecker+Valid, 941 SdHoareTripleChecker+Invalid, 2321 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 82 IncrementalHoareTripleChecker+Valid, 537 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 1702 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-07-21 09:44:43,688 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [133 Valid, 941 Invalid, 2321 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [82 Valid, 537 Invalid, 0 Unknown, 1702 Unchecked, 0.5s Time] [2022-07-21 09:44:43,689 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 209 states. [2022-07-21 09:44:43,709 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 209 to 198. [2022-07-21 09:44:43,710 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 198 states, 128 states have (on average 1.0546875) internal successors, (135), 132 states have internal predecessors, (135), 40 states have call successors, (40), 26 states have call predecessors, (40), 29 states have return successors, (45), 39 states have call predecessors, (45), 39 states have call successors, (45) [2022-07-21 09:44:43,711 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 198 states to 198 states and 220 transitions. [2022-07-21 09:44:43,711 INFO L78 Accepts]: Start accepts. Automaton has 198 states and 220 transitions. Word has length 141 [2022-07-21 09:44:43,711 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 09:44:43,711 INFO L495 AbstractCegarLoop]: Abstraction has 198 states and 220 transitions. [2022-07-21 09:44:43,712 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 41 states, 34 states have (on average 2.676470588235294) internal successors, (91), 35 states have internal predecessors, (91), 18 states have call successors, (24), 9 states have call predecessors, (24), 13 states have return successors, (23), 17 states have call predecessors, (23), 17 states have call successors, (23) [2022-07-21 09:44:43,712 INFO L276 IsEmpty]: Start isEmpty. Operand 198 states and 220 transitions. [2022-07-21 09:44:43,713 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2022-07-21 09:44:43,713 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 09:44:43,713 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2022-07-21 09:44:43,735 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-07-21 09:44:43,923 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-21 09:44:43,924 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 09:44:43,924 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 09:44:43,924 INFO L85 PathProgramCache]: Analyzing trace with hash -1247111653, now seen corresponding path program 1 times [2022-07-21 09:44:43,924 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 09:44:43,924 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [508416416] [2022-07-21 09:44:43,925 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 09:44:43,925 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 09:44:43,973 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-07-21 09:44:43,973 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1572974605] [2022-07-21 09:44:43,973 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 09:44:43,973 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-21 09:44:43,974 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-21 09:44:43,975 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 09:44:43,980 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 09:44:44,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:44:44,373 INFO L263 TraceCheckSpWp]: Trace formula consists of 2601 conjuncts, 6 conjunts are in the unsatisfiable core [2022-07-21 09:44:44,377 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 09:44:44,403 INFO L134 CoverageAnalysis]: Checked inductivity of 90 backedges. 39 proven. 0 refuted. 0 times theorem prover too weak. 51 trivial. 0 not checked. [2022-07-21 09:44:44,404 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-21 09:44:44,404 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 09:44:44,404 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [508416416] [2022-07-21 09:44:44,404 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-07-21 09:44:44,404 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1572974605] [2022-07-21 09:44:44,404 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1572974605] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 09:44:44,404 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 09:44:44,405 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-21 09:44:44,405 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1801358317] [2022-07-21 09:44:44,405 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 09:44:44,405 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-21 09:44:44,405 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 09:44:44,406 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-21 09:44:44,406 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-07-21 09:44:44,406 INFO L87 Difference]: Start difference. First operand 198 states and 220 transitions. Second operand has 7 states, 7 states have (on average 11.428571428571429) internal successors, (80), 6 states have internal predecessors, (80), 2 states have call successors, (23), 2 states have call predecessors, (23), 4 states have return successors, (23), 4 states have call predecessors, (23), 2 states have call successors, (23) [2022-07-21 09:44:44,442 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 09:44:44,442 INFO L93 Difference]: Finished difference Result 306 states and 342 transitions. [2022-07-21 09:44:44,443 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-21 09:44:44,443 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.428571428571429) internal successors, (80), 6 states have internal predecessors, (80), 2 states have call successors, (23), 2 states have call predecessors, (23), 4 states have return successors, (23), 4 states have call predecessors, (23), 2 states have call successors, (23) Word has length 147 [2022-07-21 09:44:44,443 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 09:44:44,444 INFO L225 Difference]: With dead ends: 306 [2022-07-21 09:44:44,444 INFO L226 Difference]: Without dead ends: 191 [2022-07-21 09:44:44,444 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 147 GetRequests, 141 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2022-07-21 09:44:44,445 INFO L413 NwaCegarLoop]: 125 mSDtfsCounter, 2 mSDsluCounter, 609 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 734 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-21 09:44:44,445 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 734 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-21 09:44:44,446 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 191 states. [2022-07-21 09:44:44,452 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 191 to 191. [2022-07-21 09:44:44,452 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 191 states, 124 states have (on average 1.0403225806451613) internal successors, (129), 127 states have internal predecessors, (129), 38 states have call successors, (38), 26 states have call predecessors, (38), 28 states have return successors, (42), 37 states have call predecessors, (42), 37 states have call successors, (42) [2022-07-21 09:44:44,453 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 191 states to 191 states and 209 transitions. [2022-07-21 09:44:44,453 INFO L78 Accepts]: Start accepts. Automaton has 191 states and 209 transitions. Word has length 147 [2022-07-21 09:44:44,454 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 09:44:44,454 INFO L495 AbstractCegarLoop]: Abstraction has 191 states and 209 transitions. [2022-07-21 09:44:44,454 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.428571428571429) internal successors, (80), 6 states have internal predecessors, (80), 2 states have call successors, (23), 2 states have call predecessors, (23), 4 states have return successors, (23), 4 states have call predecessors, (23), 2 states have call successors, (23) [2022-07-21 09:44:44,454 INFO L276 IsEmpty]: Start isEmpty. Operand 191 states and 209 transitions. [2022-07-21 09:44:44,455 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2022-07-21 09:44:44,455 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 09:44:44,455 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2022-07-21 09:44:44,477 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 09:44:44,675 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-21 09:44:44,676 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 09:44:44,676 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 09:44:44,676 INFO L85 PathProgramCache]: Analyzing trace with hash -1135210311, now seen corresponding path program 1 times [2022-07-21 09:44:44,676 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 09:44:44,676 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1716931745] [2022-07-21 09:44:44,676 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 09:44:44,676 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 09:44:44,738 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-07-21 09:44:44,739 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [728445058] [2022-07-21 09:44:44,739 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 09:44:44,739 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-21 09:44:44,739 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-21 09:44:44,740 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 09:44:44,741 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 09:44:45,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:44:45,116 INFO L263 TraceCheckSpWp]: Trace formula consists of 2601 conjuncts, 6 conjunts are in the unsatisfiable core [2022-07-21 09:44:45,120 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 09:44:45,146 INFO L134 CoverageAnalysis]: Checked inductivity of 90 backedges. 27 proven. 0 refuted. 0 times theorem prover too weak. 63 trivial. 0 not checked. [2022-07-21 09:44:45,146 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-21 09:44:45,146 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 09:44:45,146 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1716931745] [2022-07-21 09:44:45,146 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-07-21 09:44:45,146 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [728445058] [2022-07-21 09:44:45,146 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [728445058] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 09:44:45,146 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 09:44:45,147 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-21 09:44:45,147 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1821044808] [2022-07-21 09:44:45,147 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 09:44:45,147 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-21 09:44:45,147 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 09:44:45,148 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-21 09:44:45,148 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-07-21 09:44:45,148 INFO L87 Difference]: Start difference. First operand 191 states and 209 transitions. Second operand has 7 states, 7 states have (on average 10.285714285714286) internal successors, (72), 6 states have internal predecessors, (72), 2 states have call successors, (21), 2 states have call predecessors, (21), 4 states have return successors, (21), 4 states have call predecessors, (21), 2 states have call successors, (21) [2022-07-21 09:44:45,182 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 09:44:45,183 INFO L93 Difference]: Finished difference Result 265 states and 283 transitions. [2022-07-21 09:44:45,183 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-21 09:44:45,183 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.285714285714286) internal successors, (72), 6 states have internal predecessors, (72), 2 states have call successors, (21), 2 states have call predecessors, (21), 4 states have return successors, (21), 4 states have call predecessors, (21), 2 states have call successors, (21) Word has length 147 [2022-07-21 09:44:45,183 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 09:44:45,184 INFO L225 Difference]: With dead ends: 265 [2022-07-21 09:44:45,184 INFO L226 Difference]: Without dead ends: 153 [2022-07-21 09:44:45,184 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 147 GetRequests, 141 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2022-07-21 09:44:45,185 INFO L413 NwaCegarLoop]: 121 mSDtfsCounter, 2 mSDsluCounter, 590 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 711 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-21 09:44:45,185 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 711 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-21 09:44:45,186 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 153 states. [2022-07-21 09:44:45,190 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 153 to 150. [2022-07-21 09:44:45,191 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 150 states, 98 states have (on average 1.030612244897959) internal successors, (101), 100 states have internal predecessors, (101), 28 states have call successors, (28), 23 states have call predecessors, (28), 23 states have return successors, (27), 26 states have call predecessors, (27), 27 states have call successors, (27) [2022-07-21 09:44:45,191 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 150 states to 150 states and 156 transitions. [2022-07-21 09:44:45,192 INFO L78 Accepts]: Start accepts. Automaton has 150 states and 156 transitions. Word has length 147 [2022-07-21 09:44:45,192 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 09:44:45,192 INFO L495 AbstractCegarLoop]: Abstraction has 150 states and 156 transitions. [2022-07-21 09:44:45,192 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.285714285714286) internal successors, (72), 6 states have internal predecessors, (72), 2 states have call successors, (21), 2 states have call predecessors, (21), 4 states have return successors, (21), 4 states have call predecessors, (21), 2 states have call successors, (21) [2022-07-21 09:44:45,192 INFO L276 IsEmpty]: Start isEmpty. Operand 150 states and 156 transitions. [2022-07-21 09:44:45,193 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2022-07-21 09:44:45,193 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 09:44:45,193 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2022-07-21 09:44:45,227 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 09:44:45,401 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-21 09:44:45,401 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 09:44:45,402 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 09:44:45,402 INFO L85 PathProgramCache]: Analyzing trace with hash 1487179052, now seen corresponding path program 1 times [2022-07-21 09:44:45,402 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 09:44:45,402 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1908226309] [2022-07-21 09:44:45,402 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 09:44:45,402 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 09:44:45,475 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-07-21 09:44:45,475 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1329178651] [2022-07-21 09:44:45,475 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 09:44:45,475 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-21 09:44:45,476 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-21 09:44:45,477 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-21 09:44:45,478 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2022-07-21 09:44:45,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:44:45,939 INFO L263 TraceCheckSpWp]: Trace formula consists of 2642 conjuncts, 242 conjunts are in the unsatisfiable core [2022-07-21 09:44:45,947 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 09:44:45,957 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 09:44:46,171 INFO L356 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-07-21 09:44:46,171 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 09:44:46,204 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-07-21 09:44:46,503 INFO L356 Elim1Store]: treesize reduction 183, result has 22.1 percent of original size [2022-07-21 09:44:46,503 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 1 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 15 case distinctions, treesize of input 74 treesize of output 105 [2022-07-21 09:44:46,770 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-07-21 09:44:46,842 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-21 09:44:46,850 INFO L356 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-07-21 09:44:46,851 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 17 treesize of output 26 [2022-07-21 09:44:46,929 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 09:44:46,938 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-07-21 09:44:46,943 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 25 [2022-07-21 09:44:47,650 INFO L356 Elim1Store]: treesize reduction 60, result has 24.1 percent of original size [2022-07-21 09:44:47,651 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 6 case distinctions, treesize of input 29 treesize of output 37 [2022-07-21 09:44:47,786 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 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 7 treesize of output 3 [2022-07-21 09:44:47,794 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 10 [2022-07-21 09:44:47,798 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 09:44:47,905 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 09:44:47,991 WARN L855 $PredicateComparison]: unable to prove that (and (exists ((v_ArrVal_1339 (Array Int Int))) (= |c_#memory_$Pointer$.base| (store |c_old(#memory_$Pointer$.base)| |c_aws_mul_size_checked_#in~r#1.base| v_ArrVal_1339))) (exists ((v_ArrVal_1337 (Array Int Int))) (= (store |c_old(#memory_$Pointer$.offset)| |c_aws_mul_size_checked_#in~r#1.base| v_ArrVal_1337) |c_#memory_$Pointer$.offset|)) (exists ((v_ArrVal_1338 (Array Int Int))) (= (store |c_old(#memory_int)| |c_aws_mul_size_checked_#in~r#1.base| v_ArrVal_1338) |c_#memory_int|))) is different from true [2022-07-21 09:44:48,122 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 09:44:48,175 WARN L855 $PredicateComparison]: unable to prove that (and (exists ((v_ArrVal_1340 (Array Int Int))) (= |c_#memory_int| (store |c_old(#memory_int)| |c_aws_add_size_checked_#in~r#1.base| v_ArrVal_1340))) (exists ((v_ArrVal_1341 (Array Int Int))) (= |c_#memory_$Pointer$.base| (store |c_old(#memory_$Pointer$.base)| |c_aws_add_size_checked_#in~r#1.base| v_ArrVal_1341))) (exists ((v_ArrVal_1342 (Array Int Int))) (= |c_#memory_$Pointer$.offset| (store |c_old(#memory_$Pointer$.offset)| |c_aws_add_size_checked_#in~r#1.base| v_ArrVal_1342)))) is different from true [2022-07-21 09:44:48,341 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-21 09:44:48,343 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-21 09:44:48,345 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 5 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 31 [2022-07-21 09:44:48,354 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-21 09:44:48,355 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-21 09:44:48,356 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 5 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 60 treesize of output 54 [2022-07-21 09:44:48,366 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-21 09:44:48,368 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 11 [2022-07-21 09:44:48,411 INFO L356 Elim1Store]: treesize reduction 12, result has 52.0 percent of original size [2022-07-21 09:44:48,411 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 21 treesize of output 25 [2022-07-21 09:44:48,873 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 32 treesize of output 30 [2022-07-21 09:44:48,887 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-07-21 09:44:48,892 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 21 treesize of output 21 [2022-07-21 09:44:49,110 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-07-21 09:44:49,114 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 32 treesize of output 30 [2022-07-21 09:44:49,120 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 21 treesize of output 21 [2022-07-21 09:44:49,449 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-07-21 09:44:49,450 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 53 treesize of output 45 [2022-07-21 09:44:49,459 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 27 treesize of output 7 [2022-07-21 09:44:49,643 INFO L134 CoverageAnalysis]: Checked inductivity of 114 backedges. 32 proven. 68 refuted. 0 times theorem prover too weak. 8 trivial. 6 not checked. [2022-07-21 09:44:49,644 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-21 09:44:50,167 WARN L833 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_1348 (Array Int Int)) (v_ArrVal_1347 (Array Int Int)) (v_ArrVal_1346 (Array Int Int))) (let ((.cse0 (store |c_#memory_int| |c_ULTIMATE.start_save_byte_from_array_~storage#1.base| v_ArrVal_1347))) (= (mod (select (select .cse0 (select (select (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_save_byte_from_array_~storage#1.base| v_ArrVal_1346) |c_ULTIMATE.start_aws_hash_table_get_entry_count_harness_~#table~0#1.base|) |c_ULTIMATE.start_aws_hash_table_get_entry_count_harness_~#table~0#1.offset|)) (+ (select (select (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_save_byte_from_array_~storage#1.base| v_ArrVal_1348) |c_ULTIMATE.start_aws_hash_table_get_entry_count_harness_~#table~0#1.base|) |c_ULTIMATE.start_aws_hash_table_get_entry_count_harness_~#table~0#1.offset|) 48)) 18446744073709551616) (mod (select (select .cse0 |c_ULTIMATE.start_aws_hash_table_get_entry_count_harness_~state~14#1.base|) (+ |c_ULTIMATE.start_aws_hash_table_get_entry_count_harness_~state~14#1.offset| 48)) 18446744073709551616)))) is different from false [2022-07-21 09:44:50,174 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 09:44:50,174 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1908226309] [2022-07-21 09:44:50,174 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-07-21 09:44:50,174 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1329178651] [2022-07-21 09:44:50,175 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1329178651] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-21 09:44:50,175 INFO L184 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2022-07-21 09:44:50,175 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [41] total 41 [2022-07-21 09:44:50,175 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2019242154] [2022-07-21 09:44:50,175 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2022-07-21 09:44:50,175 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 41 states [2022-07-21 09:44:50,175 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 09:44:50,176 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 41 interpolants. [2022-07-21 09:44:50,177 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=152, Invalid=1920, Unknown=10, NotChecked=270, Total=2352 [2022-07-21 09:44:50,177 INFO L87 Difference]: Start difference. First operand 150 states and 156 transitions. Second operand has 41 states, 35 states have (on average 2.657142857142857) internal successors, (93), 35 states have internal predecessors, (93), 18 states have call successors, (25), 9 states have call predecessors, (25), 12 states have return successors, (24), 17 states have call predecessors, (24), 17 states have call successors, (24) [2022-07-21 09:44:52,000 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 09:44:52,000 INFO L93 Difference]: Finished difference Result 160 states and 164 transitions. [2022-07-21 09:44:52,000 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2022-07-21 09:44:52,000 INFO L78 Accepts]: Start accepts. Automaton has has 41 states, 35 states have (on average 2.657142857142857) internal successors, (93), 35 states have internal predecessors, (93), 18 states have call successors, (25), 9 states have call predecessors, (25), 12 states have return successors, (24), 17 states have call predecessors, (24), 17 states have call successors, (24) Word has length 148 [2022-07-21 09:44:52,001 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 09:44:52,002 INFO L225 Difference]: With dead ends: 160 [2022-07-21 09:44:52,002 INFO L226 Difference]: Without dead ends: 158 [2022-07-21 09:44:52,003 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 191 GetRequests, 103 SyntacticMatches, 16 SemanticMatches, 72 ConstructedPredicates, 3 IntricatePredicates, 0 DeprecatedPredicates, 1438 ImplicationChecksByTransitivity, 3.9s TimeCoverageRelationStatistics Valid=321, Invalid=4630, Unknown=31, NotChecked=420, Total=5402 [2022-07-21 09:44:52,004 INFO L413 NwaCegarLoop]: 81 mSDtfsCounter, 153 mSDsluCounter, 472 mSDsCounter, 0 mSdLazyCounter, 467 mSolverCounterSat, 84 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 158 SdHoareTripleChecker+Valid, 553 SdHoareTripleChecker+Invalid, 1840 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 84 IncrementalHoareTripleChecker+Valid, 467 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 1289 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-07-21 09:44:52,004 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [158 Valid, 553 Invalid, 1840 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [84 Valid, 467 Invalid, 0 Unknown, 1289 Unchecked, 0.4s Time] [2022-07-21 09:44:52,005 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 158 states. [2022-07-21 09:44:52,014 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 158 to 146. [2022-07-21 09:44:52,014 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 146 states, 96 states have (on average 1.03125) internal successors, (99), 97 states have internal predecessors, (99), 26 states have call successors, (26), 23 states have call predecessors, (26), 23 states have return successors, (25), 25 states have call predecessors, (25), 25 states have call successors, (25) [2022-07-21 09:44:52,016 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 146 states to 146 states and 150 transitions. [2022-07-21 09:44:52,016 INFO L78 Accepts]: Start accepts. Automaton has 146 states and 150 transitions. Word has length 148 [2022-07-21 09:44:52,016 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 09:44:52,016 INFO L495 AbstractCegarLoop]: Abstraction has 146 states and 150 transitions. [2022-07-21 09:44:52,016 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 41 states, 35 states have (on average 2.657142857142857) internal successors, (93), 35 states have internal predecessors, (93), 18 states have call successors, (25), 9 states have call predecessors, (25), 12 states have return successors, (24), 17 states have call predecessors, (24), 17 states have call successors, (24) [2022-07-21 09:44:52,017 INFO L276 IsEmpty]: Start isEmpty. Operand 146 states and 150 transitions. [2022-07-21 09:44:52,018 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2022-07-21 09:44:52,018 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 09:44:52,018 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2022-07-21 09:44:52,042 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2022-07-21 09:44:52,224 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2022-07-21 09:44:52,224 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 09:44:52,225 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 09:44:52,225 INFO L85 PathProgramCache]: Analyzing trace with hash -1907889842, now seen corresponding path program 1 times [2022-07-21 09:44:52,225 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 09:44:52,225 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1760595733] [2022-07-21 09:44:52,225 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 09:44:52,225 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 09:44:52,292 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-07-21 09:44:52,292 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [942714288] [2022-07-21 09:44:52,293 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 09:44:52,293 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-21 09:44:52,293 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-21 09:44:52,294 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-21 09:44:52,327 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2022-07-21 09:44:52,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:44:52,775 INFO L263 TraceCheckSpWp]: Trace formula consists of 2630 conjuncts, 119 conjunts are in the unsatisfiable core [2022-07-21 09:44:52,783 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 09:44:52,797 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 09:44:53,032 INFO L356 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-07-21 09:44:53,032 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 09:44:53,064 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-07-21 09:44:53,331 INFO L356 Elim1Store]: treesize reduction 183, result has 22.1 percent of original size [2022-07-21 09:44:53,332 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 1 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 15 case distinctions, treesize of input 74 treesize of output 105 [2022-07-21 09:44:53,510 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-07-21 09:44:53,571 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-21 09:44:53,580 INFO L356 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-07-21 09:44:53,580 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 17 treesize of output 26 [2022-07-21 09:44:53,651 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-07-21 09:44:53,656 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 25 [2022-07-21 09:44:54,078 INFO L356 Elim1Store]: treesize reduction 60, result has 24.1 percent of original size [2022-07-21 09:44:54,079 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 6 case distinctions, treesize of input 29 treesize of output 37 [2022-07-21 09:44:54,261 WARN L855 $PredicateComparison]: unable to prove that (exists ((v_ArrVal_1517 (Array Int Int))) (= |c_#memory_$Pointer$.base| (store |c_old(#memory_$Pointer$.base)| |c_aws_mul_size_checked_#in~r#1.base| v_ArrVal_1517))) is different from true [2022-07-21 09:44:54,360 WARN L855 $PredicateComparison]: unable to prove that (exists ((v_ArrVal_1518 (Array Int Int))) (= |c_#memory_$Pointer$.base| (store |c_old(#memory_$Pointer$.base)| |c_aws_add_size_checked_#in~r#1.base| v_ArrVal_1518))) is different from true [2022-07-21 09:44:54,432 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-21 09:44:54,432 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-21 09:44:54,433 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 5 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 29 [2022-07-21 09:44:54,453 INFO L356 Elim1Store]: treesize reduction 12, result has 52.0 percent of original size [2022-07-21 09:44:54,453 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 21 treesize of output 25 [2022-07-21 09:46:08,414 INFO L134 CoverageAnalysis]: Checked inductivity of 99 backedges. 19 proven. 70 refuted. 0 times theorem prover too weak. 4 trivial. 6 not checked. [2022-07-21 09:46:08,414 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-21 09:46:08,923 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 09:46:08,924 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1760595733] [2022-07-21 09:46:08,927 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-07-21 09:46:08,927 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [942714288] [2022-07-21 09:46:08,927 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [942714288] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-21 09:46:08,927 INFO L184 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2022-07-21 09:46:08,927 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [32] total 32 [2022-07-21 09:46:08,928 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1796720294] [2022-07-21 09:46:08,928 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2022-07-21 09:46:08,928 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 32 states [2022-07-21 09:46:08,928 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 09:46:08,929 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2022-07-21 09:46:08,929 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=116, Invalid=1127, Unknown=25, NotChecked=138, Total=1406 [2022-07-21 09:46:08,929 INFO L87 Difference]: Start difference. First operand 146 states and 150 transitions. Second operand has 32 states, 29 states have (on average 3.4482758620689653) internal successors, (100), 29 states have internal predecessors, (100), 14 states have call successors, (26), 9 states have call predecessors, (26), 12 states have return successors, (25), 15 states have call predecessors, (25), 13 states have call successors, (25) [2022-07-21 09:46:33,837 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 09:46:33,837 INFO L93 Difference]: Finished difference Result 176 states and 182 transitions. [2022-07-21 09:46:33,838 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2022-07-21 09:46:33,838 INFO L78 Accepts]: Start accepts. Automaton has has 32 states, 29 states have (on average 3.4482758620689653) internal successors, (100), 29 states have internal predecessors, (100), 14 states have call successors, (26), 9 states have call predecessors, (26), 12 states have return successors, (25), 15 states have call predecessors, (25), 13 states have call successors, (25) Word has length 154 [2022-07-21 09:46:33,839 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 09:46:33,839 INFO L225 Difference]: With dead ends: 176 [2022-07-21 09:46:33,839 INFO L226 Difference]: Without dead ends: 164 [2022-07-21 09:46:33,840 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 216 GetRequests, 142 SyntacticMatches, 18 SemanticMatches, 56 ConstructedPredicates, 2 IntricatePredicates, 0 DeprecatedPredicates, 746 ImplicationChecksByTransitivity, 99.3s TimeCoverageRelationStatistics Valid=237, Invalid=2789, Unknown=62, NotChecked=218, Total=3306 [2022-07-21 09:46:33,841 INFO L413 NwaCegarLoop]: 96 mSDtfsCounter, 118 mSDsluCounter, 368 mSDsCounter, 0 mSdLazyCounter, 273 mSolverCounterSat, 89 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 120 SdHoareTripleChecker+Valid, 464 SdHoareTripleChecker+Invalid, 1441 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 89 IncrementalHoareTripleChecker+Valid, 273 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 1079 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-07-21 09:46:33,841 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [120 Valid, 464 Invalid, 1441 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [89 Valid, 273 Invalid, 0 Unknown, 1079 Unchecked, 0.3s Time] [2022-07-21 09:46:33,841 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 164 states. [2022-07-21 09:46:33,847 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 164 to 163. [2022-07-21 09:46:33,848 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 163 states, 108 states have (on average 1.0277777777777777) internal successors, (111), 109 states have internal predecessors, (111), 29 states have call successors, (29), 26 states have call predecessors, (29), 25 states have return successors, (28), 27 states have call predecessors, (28), 28 states have call successors, (28) [2022-07-21 09:46:33,848 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 163 states to 163 states and 168 transitions. [2022-07-21 09:46:33,848 INFO L78 Accepts]: Start accepts. Automaton has 163 states and 168 transitions. Word has length 154 [2022-07-21 09:46:33,849 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 09:46:33,849 INFO L495 AbstractCegarLoop]: Abstraction has 163 states and 168 transitions. [2022-07-21 09:46:33,849 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 32 states, 29 states have (on average 3.4482758620689653) internal successors, (100), 29 states have internal predecessors, (100), 14 states have call successors, (26), 9 states have call predecessors, (26), 12 states have return successors, (25), 15 states have call predecessors, (25), 13 states have call successors, (25) [2022-07-21 09:46:33,849 INFO L276 IsEmpty]: Start isEmpty. Operand 163 states and 168 transitions. [2022-07-21 09:46:33,850 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2022-07-21 09:46:33,850 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 09:46:33,850 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2022-07-21 09:46:33,881 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2022-07-21 09:46:34,072 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-21 09:46:34,072 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 09:46:34,072 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 09:46:34,072 INFO L85 PathProgramCache]: Analyzing trace with hash 444745877, now seen corresponding path program 1 times [2022-07-21 09:46:34,072 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 09:46:34,072 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [949537182] [2022-07-21 09:46:34,072 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 09:46:34,072 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 09:46:34,114 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-07-21 09:46:34,115 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [398591966] [2022-07-21 09:46:34,115 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 09:46:34,115 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-21 09:46:34,115 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-21 09:46:34,116 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-21 09:46:34,138 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2022-07-21 09:46:34,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:46:34,611 INFO L263 TraceCheckSpWp]: Trace formula consists of 2675 conjuncts, 142 conjunts are in the unsatisfiable core [2022-07-21 09:46:34,618 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 09:46:34,630 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 09:46:34,974 INFO L356 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-07-21 09:46:34,974 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 09:46:35,020 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-07-21 09:46:35,364 INFO L356 Elim1Store]: treesize reduction 173, result has 26.4 percent of original size [2022-07-21 09:46:35,364 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 1 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 15 case distinctions, treesize of input 93 treesize of output 134 [2022-07-21 09:46:35,573 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-07-21 09:46:35,644 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-21 09:46:35,655 INFO L356 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-07-21 09:46:35,656 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 17 treesize of output 26 [2022-07-21 09:46:35,745 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-07-21 09:46:35,750 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 25 [2022-07-21 09:46:36,472 INFO L356 Elim1Store]: treesize reduction 60, result has 24.1 percent of original size [2022-07-21 09:46:36,473 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 6 case distinctions, treesize of input 29 treesize of output 37 [2022-07-21 09:46:36,562 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 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 16 treesize of output 8 [2022-07-21 09:46:36,568 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-07-21 09:46:36,670 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 09:46:36,742 WARN L855 $PredicateComparison]: unable to prove that (exists ((v_ArrVal_1731 (Array Int Int))) (= (store |c_old(#memory_$Pointer$.base)| |c_aws_mul_size_checked_#in~r#1.base| v_ArrVal_1731) |c_#memory_$Pointer$.base|)) is different from true [2022-07-21 09:46:36,845 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 09:46:36,895 WARN L855 $PredicateComparison]: unable to prove that (exists ((v_ArrVal_1732 (Array Int Int))) (= (store |c_old(#memory_$Pointer$.base)| |c_aws_add_size_checked_#in~r#1.base| v_ArrVal_1732) |c_#memory_$Pointer$.base|)) is different from true [2022-07-21 09:46:37,052 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-21 09:46:37,069 INFO L356 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-07-21 09:46:37,069 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 36 treesize of output 40 [2022-07-21 09:46:37,104 INFO L356 Elim1Store]: treesize reduction 8, result has 52.9 percent of original size [2022-07-21 09:46:37,104 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 16 treesize of output 18 [2022-07-21 09:46:54,228 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 24 treesize of output 24