./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/aws-c-common/aws_priority_queue_s_sift_up_harness.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 791161d1 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_priority_queue_s_sift_up_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 723ac1839b12f7ec2d51e01d6b07ab9cd6a1336eb9a801e97d56c2782f32ef5c --- Real Ultimate output --- This is Ultimate 0.2.2-?-791161d [2022-07-22 22:31:25,257 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-22 22:31:25,258 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-22 22:31:25,291 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-22 22:31:25,292 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-22 22:31:25,293 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-22 22:31:25,294 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-22 22:31:25,296 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-22 22:31:25,297 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-22 22:31:25,300 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-22 22:31:25,301 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-22 22:31:25,303 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-22 22:31:25,303 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-22 22:31:25,304 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-22 22:31:25,305 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-22 22:31:25,307 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-22 22:31:25,308 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-22 22:31:25,309 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-22 22:31:25,310 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-22 22:31:25,314 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-22 22:31:25,315 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-22 22:31:25,316 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-22 22:31:25,316 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-22 22:31:25,317 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-22 22:31:25,318 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-22 22:31:25,323 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-22 22:31:25,323 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-22 22:31:25,323 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-22 22:31:25,324 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-22 22:31:25,325 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-22 22:31:25,325 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-22 22:31:25,326 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-22 22:31:25,327 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-22 22:31:25,327 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-22 22:31:25,328 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-22 22:31:25,328 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-22 22:31:25,328 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-22 22:31:25,329 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-22 22:31:25,329 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-22 22:31:25,329 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-22 22:31:25,330 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-22 22:31:25,331 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-22 22:31:25,332 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2022-07-22 22:31:25,353 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-22 22:31:25,354 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-22 22:31:25,354 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-22 22:31:25,354 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-22 22:31:25,355 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-22 22:31:25,355 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-22 22:31:25,355 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-22 22:31:25,355 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-22 22:31:25,355 INFO L138 SettingsManager]: * Use SBE=true [2022-07-22 22:31:25,356 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-22 22:31:25,356 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-22 22:31:25,356 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-22 22:31:25,357 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-22 22:31:25,357 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-22 22:31:25,357 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-22 22:31:25,357 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-22 22:31:25,357 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-22 22:31:25,357 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-22 22:31:25,357 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-22 22:31:25,358 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-22 22:31:25,358 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-22 22:31:25,358 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-22 22:31:25,358 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-22 22:31:25,358 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-22 22:31:25,358 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-22 22:31:25,358 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-22 22:31:25,359 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-22 22:31:25,359 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-22 22:31:25,359 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-22 22:31:25,359 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-22 22:31:25,359 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 723ac1839b12f7ec2d51e01d6b07ab9cd6a1336eb9a801e97d56c2782f32ef5c [2022-07-22 22:31:25,509 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-22 22:31:25,522 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-22 22:31:25,523 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-22 22:31:25,524 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-22 22:31:25,525 INFO L275 PluginConnector]: CDTParser initialized [2022-07-22 22:31:25,525 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/aws-c-common/aws_priority_queue_s_sift_up_harness.i [2022-07-22 22:31:25,587 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/05049d6fa/3b01284a627549368c9f1f45d3c93764/FLAG2f114692b [2022-07-22 22:31:26,171 INFO L306 CDTParser]: Found 1 translation units. [2022-07-22 22:31:26,171 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_priority_queue_s_sift_up_harness.i [2022-07-22 22:31:26,190 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/05049d6fa/3b01284a627549368c9f1f45d3c93764/FLAG2f114692b [2022-07-22 22:31:26,360 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/05049d6fa/3b01284a627549368c9f1f45d3c93764 [2022-07-22 22:31:26,362 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-22 22:31:26,364 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-22 22:31:26,377 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-22 22:31:26,381 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-22 22:31:26,387 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-22 22:31:26,388 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.07 10:31:26" (1/1) ... [2022-07-22 22:31:26,389 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@510c85e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 10:31:26, skipping insertion in model container [2022-07-22 22:31:26,389 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.07 10:31:26" (1/1) ... [2022-07-22 22:31:26,394 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-22 22:31:26,490 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-22 22:31:26,681 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_priority_queue_s_sift_up_harness.i[4502,4515] [2022-07-22 22:31:26,685 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_priority_queue_s_sift_up_harness.i[4562,4575] [2022-07-22 22:31:27,109 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-22 22:31:27,111 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-22 22:31:27,113 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-22 22:31:27,114 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-22 22:31:27,115 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-22 22:31:27,129 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-22 22:31:27,130 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-22 22:31:27,133 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-22 22:31:27,135 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-22 22:31:27,140 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-22 22:31:27,141 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-22 22:31:27,141 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-22 22:31:27,142 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-22 22:31:27,306 WARN L611 FunctionHandler]: implicit declaration of function __atomic_load_n [2022-07-22 22:31:27,309 WARN L611 FunctionHandler]: implicit declaration of function __atomic_store_n [2022-07-22 22:31:27,309 WARN L611 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2022-07-22 22:31:27,310 WARN L611 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2022-07-22 22:31:27,311 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2022-07-22 22:31:27,311 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2022-07-22 22:31:27,311 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2022-07-22 22:31:27,312 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2022-07-22 22:31:27,312 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2022-07-22 22:31:27,312 WARN L611 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2022-07-22 22:31:27,393 WARN L611 FunctionHandler]: implicit declaration of function __builtin_va_copy [2022-07-22 22:31:27,422 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-22 22:31:27,423 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-22 22:31:27,426 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-22 22:31:27,429 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-22 22:31:27,475 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-22 22:31:27,476 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-22 22:31:27,476 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-22 22:31:27,476 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-22 22:31:27,476 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-22 22:31:27,477 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-22 22:31:27,477 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-22 22:31:27,478 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-22 22:31:27,478 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-22 22:31:27,478 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-22 22:31:27,478 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-22 22:31:27,479 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-22 22:31:27,479 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-22 22:31:27,482 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-22 22:31:27,482 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-22 22:31:27,483 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-22 22:31:27,484 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-22 22:31:27,489 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-22 22:31:27,489 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-22 22:31:27,495 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-22 22:31:27,496 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-22 22:31:27,496 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-22 22:31:27,513 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-22 22:31:27,542 INFO L203 MainTranslator]: Completed pre-run [2022-07-22 22:31:27,559 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_priority_queue_s_sift_up_harness.i[4502,4515] [2022-07-22 22:31:27,559 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_priority_queue_s_sift_up_harness.i[4562,4575] [2022-07-22 22:31:27,593 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-22 22:31:27,599 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-22 22:31:27,600 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-22 22:31:27,601 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-22 22:31:27,601 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-22 22:31:27,608 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-22 22:31:27,609 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-22 22:31:27,609 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-22 22:31:27,609 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-22 22:31:27,610 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-22 22:31:27,610 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-22 22:31:27,610 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-22 22:31:27,611 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-22 22:31:27,635 WARN L611 FunctionHandler]: implicit declaration of function __atomic_load_n [2022-07-22 22:31:27,635 WARN L611 FunctionHandler]: implicit declaration of function __atomic_store_n [2022-07-22 22:31:27,636 WARN L611 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2022-07-22 22:31:27,636 WARN L611 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2022-07-22 22:31:27,656 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2022-07-22 22:31:27,657 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2022-07-22 22:31:27,657 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2022-07-22 22:31:27,657 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2022-07-22 22:31:27,657 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2022-07-22 22:31:27,658 WARN L611 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2022-07-22 22:31:27,675 WARN L611 FunctionHandler]: implicit declaration of function __builtin_va_copy [2022-07-22 22:31:27,690 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-22 22:31:27,690 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-22 22:31:27,692 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-22 22:31:27,695 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-22 22:31:27,720 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-22 22:31:27,721 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-22 22:31:27,721 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-22 22:31:27,722 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-22 22:31:27,722 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-22 22:31:27,722 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-22 22:31:27,722 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-22 22:31:27,723 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-22 22:31:27,723 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-22 22:31:27,723 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-22 22:31:27,724 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-22 22:31:27,724 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-22 22:31:27,725 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-22 22:31:27,725 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-22 22:31:27,726 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-22 22:31:27,726 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-22 22:31:27,726 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-22 22:31:27,727 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-22 22:31:27,728 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-22 22:31:27,732 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-22 22:31:27,733 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-22 22:31:27,733 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-22 22:31:27,743 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-22 22:31:27,882 INFO L208 MainTranslator]: Completed translation [2022-07-22 22:31:27,882 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 10:31:27 WrapperNode [2022-07-22 22:31:27,882 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-22 22:31:27,884 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-22 22:31:27,884 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-22 22:31:27,884 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-22 22:31:27,888 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 10:31:27" (1/1) ... [2022-07-22 22:31:27,976 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 10:31:27" (1/1) ... [2022-07-22 22:31:28,046 INFO L137 Inliner]: procedures = 697, calls = 1887, calls flagged for inlining = 61, calls inlined = 14, statements flattened = 815 [2022-07-22 22:31:28,047 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-22 22:31:28,047 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-22 22:31:28,047 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-22 22:31:28,047 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-22 22:31:28,055 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 10:31:27" (1/1) ... [2022-07-22 22:31:28,056 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 10:31:27" (1/1) ... [2022-07-22 22:31:28,062 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 10:31:27" (1/1) ... [2022-07-22 22:31:28,063 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 10:31:27" (1/1) ... [2022-07-22 22:31:28,086 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 10:31:27" (1/1) ... [2022-07-22 22:31:28,090 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 10:31:27" (1/1) ... [2022-07-22 22:31:28,095 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 10:31:27" (1/1) ... [2022-07-22 22:31:28,101 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-22 22:31:28,102 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-22 22:31:28,102 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-22 22:31:28,102 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-22 22:31:28,103 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 10:31:27" (1/1) ... [2022-07-22 22:31:28,107 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-22 22:31:28,116 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 22:31:28,131 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) [2022-07-22 22:31:28,174 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 [2022-07-22 22:31:28,195 INFO L130 BoogieDeclarations]: Found specification of procedure s_swap [2022-07-22 22:31:28,195 INFO L138 BoogieDeclarations]: Found implementation of procedure s_swap [2022-07-22 22:31:28,195 INFO L130 BoogieDeclarations]: Found specification of procedure aws_is_mem_zeroed [2022-07-22 22:31:28,195 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_is_mem_zeroed [2022-07-22 22:31:28,195 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-07-22 22:31:28,196 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_is_bounded [2022-07-22 22:31:28,196 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_is_bounded [2022-07-22 22:31:28,196 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_is_valid [2022-07-22 22:31:28,196 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_is_valid [2022-07-22 22:31:28,196 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_bool [2022-07-22 22:31:28,196 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_bool [2022-07-22 22:31:28,196 INFO L130 BoogieDeclarations]: Found specification of procedure s_sift_up [2022-07-22 22:31:28,196 INFO L138 BoogieDeclarations]: Found implementation of procedure s_sift_up [2022-07-22 22:31:28,197 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-07-22 22:31:28,197 INFO L130 BoogieDeclarations]: Found specification of procedure aws_raise_error [2022-07-22 22:31:28,197 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_raise_error [2022-07-22 22:31:28,198 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2022-07-22 22:31:28,199 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2022-07-22 22:31:28,199 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-07-22 22:31:28,200 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-22 22:31:28,200 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-07-22 22:31:28,200 INFO L130 BoogieDeclarations]: Found specification of procedure my_abort [2022-07-22 22:31:28,200 INFO L138 BoogieDeclarations]: Found implementation of procedure my_abort [2022-07-22 22:31:28,200 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy_impl [2022-07-22 22:31:28,200 INFO L138 BoogieDeclarations]: Found implementation of procedure memcpy_impl [2022-07-22 22:31:28,200 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-22 22:31:28,204 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-22 22:31:28,204 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2022-07-22 22:31:28,204 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2022-07-22 22:31:28,204 INFO L130 BoogieDeclarations]: Found specification of procedure aws_mul_size_checked [2022-07-22 22:31:28,204 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_mul_size_checked [2022-07-22 22:31:28,204 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_malloc [2022-07-22 22:31:28,204 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_malloc [2022-07-22 22:31:28,205 INFO L130 BoogieDeclarations]: Found specification of procedure aws_priority_queue_is_valid [2022-07-22 22:31:28,205 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_priority_queue_is_valid [2022-07-22 22:31:28,205 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_length [2022-07-22 22:31:28,205 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_length [2022-07-22 22:31:28,205 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-07-22 22:31:28,205 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-07-22 22:31:28,206 INFO L130 BoogieDeclarations]: Found specification of procedure my_memcpy [2022-07-22 22:31:28,206 INFO L138 BoogieDeclarations]: Found implementation of procedure my_memcpy [2022-07-22 22:31:28,206 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-07-22 22:31:28,206 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-07-22 22:31:28,206 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-07-22 22:31:28,206 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_get_at_ptr [2022-07-22 22:31:28,206 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_get_at_ptr [2022-07-22 22:31:28,206 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_allocator [2022-07-22 22:31:28,206 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_allocator [2022-07-22 22:31:28,206 INFO L130 BoogieDeclarations]: Found specification of procedure __CPROVER_overflow_mult [2022-07-22 22:31:28,207 INFO L138 BoogieDeclarations]: Found implementation of procedure __CPROVER_overflow_mult [2022-07-22 22:31:28,207 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-07-22 22:31:28,207 INFO L130 BoogieDeclarations]: Found specification of procedure ensure_array_list_has_allocated_data_member [2022-07-22 22:31:28,207 INFO L138 BoogieDeclarations]: Found implementation of procedure ensure_array_list_has_allocated_data_member [2022-07-22 22:31:28,207 INFO L130 BoogieDeclarations]: Found specification of procedure aws_priority_queue_backpointer_index_valid [2022-07-22 22:31:28,207 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_priority_queue_backpointer_index_valid [2022-07-22 22:31:28,207 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2022-07-22 22:31:28,207 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2022-07-22 22:31:28,207 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-07-22 22:31:28,409 INFO L234 CfgBuilder]: Building ICFG [2022-07-22 22:31:28,410 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-22 22:31:29,143 INFO L275 CfgBuilder]: Performing block encoding [2022-07-22 22:31:29,157 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-22 22:31:29,158 INFO L299 CfgBuilder]: Removed 5 assume(true) statements. [2022-07-22 22:31:29,159 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.07 10:31:29 BoogieIcfgContainer [2022-07-22 22:31:29,160 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-22 22:31:29,161 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-22 22:31:29,161 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-22 22:31:29,164 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-22 22:31:29,164 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.07 10:31:26" (1/3) ... [2022-07-22 22:31:29,165 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@e315e62 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.07 10:31:29, skipping insertion in model container [2022-07-22 22:31:29,165 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 10:31:27" (2/3) ... [2022-07-22 22:31:29,165 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@e315e62 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.07 10:31:29, skipping insertion in model container [2022-07-22 22:31:29,166 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.07 10:31:29" (3/3) ... [2022-07-22 22:31:29,166 INFO L111 eAbstractionObserver]: Analyzing ICFG aws_priority_queue_s_sift_up_harness.i [2022-07-22 22:31:29,176 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-22 22:31:29,177 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-07-22 22:31:29,214 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-22 22:31:29,219 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@17b6c7fe, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@5fd25204 [2022-07-22 22:31:29,219 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-07-22 22:31:29,223 INFO L276 IsEmpty]: Start isEmpty. Operand has 315 states, 194 states have (on average 1.2577319587628866) internal successors, (244), 197 states have internal predecessors, (244), 95 states have call successors, (95), 23 states have call predecessors, (95), 23 states have return successors, (95), 95 states have call predecessors, (95), 95 states have call successors, (95) [2022-07-22 22:31:29,234 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2022-07-22 22:31:29,234 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 22:31:29,235 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 22:31:29,235 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-22 22:31:29,239 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 22:31:29,239 INFO L85 PathProgramCache]: Analyzing trace with hash -30055658, now seen corresponding path program 1 times [2022-07-22 22:31:29,245 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 22:31:29,246 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1435876887] [2022-07-22 22:31:29,246 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 22:31:29,246 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 22:31:29,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:31:29,608 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-22 22:31:29,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:31:29,622 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-07-22 22:31:29,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:31:29,634 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-07-22 22:31:29,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:31:29,653 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-07-22 22:31:29,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:31:29,670 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-22 22:31:29,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:31:29,679 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-07-22 22:31:29,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:31:29,691 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-07-22 22:31:29,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:31:29,709 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-22 22:31:29,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:31:29,718 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-07-22 22:31:29,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:31:29,738 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-07-22 22:31:29,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:31:29,750 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2022-07-22 22:31:29,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:31:29,755 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-07-22 22:31:29,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:31:29,761 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2022-07-22 22:31:29,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:31:29,770 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-07-22 22:31:29,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:31:29,776 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2022-07-22 22:31:29,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:31:29,787 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2022-07-22 22:31:29,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:31:29,801 INFO L134 CoverageAnalysis]: Checked inductivity of 111 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 111 trivial. 0 not checked. [2022-07-22 22:31:29,802 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 22:31:29,802 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1435876887] [2022-07-22 22:31:29,802 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1435876887] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 22:31:29,803 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 22:31:29,803 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-22 22:31:29,804 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [187302992] [2022-07-22 22:31:29,805 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 22:31:29,808 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-22 22:31:29,808 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 22:31:29,828 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-22 22:31:29,828 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-07-22 22:31:29,831 INFO L87 Difference]: Start difference. First operand has 315 states, 194 states have (on average 1.2577319587628866) internal successors, (244), 197 states have internal predecessors, (244), 95 states have call successors, (95), 23 states have call predecessors, (95), 23 states have return successors, (95), 95 states have call predecessors, (95), 95 states have call successors, (95) Second operand has 4 states, 4 states have (on average 9.0) internal successors, (36), 2 states have internal predecessors, (36), 2 states have call successors, (16), 4 states have call predecessors, (16), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-07-22 22:31:30,574 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 22:31:30,575 INFO L93 Difference]: Finished difference Result 711 states and 1124 transitions. [2022-07-22 22:31:30,576 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-07-22 22:31:30,577 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 9.0) internal successors, (36), 2 states have internal predecessors, (36), 2 states have call successors, (16), 4 states have call predecessors, (16), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 104 [2022-07-22 22:31:30,577 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 22:31:30,599 INFO L225 Difference]: With dead ends: 711 [2022-07-22 22:31:30,599 INFO L226 Difference]: Without dead ends: 402 [2022-07-22 22:31:30,607 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-07-22 22:31:30,611 INFO L413 NwaCegarLoop]: 386 mSDtfsCounter, 237 mSDsluCounter, 124 mSDsCounter, 0 mSdLazyCounter, 234 mSolverCounterSat, 322 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 276 SdHoareTripleChecker+Valid, 510 SdHoareTripleChecker+Invalid, 556 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 322 IncrementalHoareTripleChecker+Valid, 234 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-07-22 22:31:30,614 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [276 Valid, 510 Invalid, 556 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [322 Valid, 234 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-07-22 22:31:30,626 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 402 states. [2022-07-22 22:31:30,684 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 402 to 308. [2022-07-22 22:31:30,686 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 308 states, 189 states have (on average 1.2222222222222223) internal successors, (231), 191 states have internal predecessors, (231), 95 states have call successors, (95), 23 states have call predecessors, (95), 22 states have return successors, (93), 93 states have call predecessors, (93), 93 states have call successors, (93) [2022-07-22 22:31:30,689 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 308 states to 308 states and 419 transitions. [2022-07-22 22:31:30,690 INFO L78 Accepts]: Start accepts. Automaton has 308 states and 419 transitions. Word has length 104 [2022-07-22 22:31:30,690 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 22:31:30,691 INFO L495 AbstractCegarLoop]: Abstraction has 308 states and 419 transitions. [2022-07-22 22:31:30,691 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.0) internal successors, (36), 2 states have internal predecessors, (36), 2 states have call successors, (16), 4 states have call predecessors, (16), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-07-22 22:31:30,691 INFO L276 IsEmpty]: Start isEmpty. Operand 308 states and 419 transitions. [2022-07-22 22:31:30,693 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2022-07-22 22:31:30,693 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 22:31:30,693 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 22:31:30,693 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-07-22 22:31:30,694 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-22 22:31:30,694 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 22:31:30,694 INFO L85 PathProgramCache]: Analyzing trace with hash -380024514, now seen corresponding path program 1 times [2022-07-22 22:31:30,694 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 22:31:30,694 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1607926494] [2022-07-22 22:31:30,694 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 22:31:30,695 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 22:31:30,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:31:30,901 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-22 22:31:30,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:31:30,912 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-07-22 22:31:30,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:31:30,922 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-07-22 22:31:30,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:31:30,938 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-07-22 22:31:30,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:31:30,951 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-22 22:31:30,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:31:30,956 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-07-22 22:31:30,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:31:30,962 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-07-22 22:31:30,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:31:30,974 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-22 22:31:30,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:31:30,980 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-07-22 22:31:30,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:31:31,013 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-07-22 22:31:31,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:31:31,033 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2022-07-22 22:31:31,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:31:31,038 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-07-22 22:31:31,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:31:31,044 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2022-07-22 22:31:31,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:31:31,049 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-07-22 22:31:31,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:31:31,055 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2022-07-22 22:31:31,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:31:31,060 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2022-07-22 22:31:31,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:31:31,067 INFO L134 CoverageAnalysis]: Checked inductivity of 111 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 105 trivial. 0 not checked. [2022-07-22 22:31:31,068 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 22:31:31,068 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1607926494] [2022-07-22 22:31:31,068 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1607926494] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-22 22:31:31,068 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1525425370] [2022-07-22 22:31:31,068 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 22:31:31,069 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-22 22:31:31,069 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 22:31:31,070 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) [2022-07-22 22:31:31,087 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-07-22 22:31:31,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:31:31,479 INFO L263 TraceCheckSpWp]: Trace formula consists of 2188 conjuncts, 5 conjunts are in the unsatisfiable core [2022-07-22 22:31:31,485 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-22 22:31:31,562 INFO L134 CoverageAnalysis]: Checked inductivity of 111 backedges. 56 proven. 0 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2022-07-22 22:31:31,562 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-22 22:31:31,563 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1525425370] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 22:31:31,563 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-22 22:31:31,586 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [7] total 11 [2022-07-22 22:31:31,587 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [181711816] [2022-07-22 22:31:31,587 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 22:31:31,588 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-22 22:31:31,588 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 22:31:31,589 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-22 22:31:31,589 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2022-07-22 22:31:31,589 INFO L87 Difference]: Start difference. First operand 308 states and 419 transitions. Second operand has 6 states, 6 states have (on average 7.0) internal successors, (42), 6 states have internal predecessors, (42), 3 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2022-07-22 22:31:31,739 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 22:31:31,739 INFO L93 Difference]: Finished difference Result 582 states and 798 transitions. [2022-07-22 22:31:31,740 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-22 22:31:31,740 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.0) internal successors, (42), 6 states have internal predecessors, (42), 3 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) Word has length 104 [2022-07-22 22:31:31,740 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 22:31:31,742 INFO L225 Difference]: With dead ends: 582 [2022-07-22 22:31:31,742 INFO L226 Difference]: Without dead ends: 310 [2022-07-22 22:31:31,744 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 142 GetRequests, 130 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=38, Invalid=144, Unknown=0, NotChecked=0, Total=182 [2022-07-22 22:31:31,744 INFO L413 NwaCegarLoop]: 383 mSDtfsCounter, 442 mSDsluCounter, 1085 mSDsCounter, 0 mSdLazyCounter, 138 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 450 SdHoareTripleChecker+Valid, 1468 SdHoareTripleChecker+Invalid, 169 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 138 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-22 22:31:31,745 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [450 Valid, 1468 Invalid, 169 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 138 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-22 22:31:31,745 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 310 states. [2022-07-22 22:31:31,757 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 310 to 310. [2022-07-22 22:31:31,758 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 310 states, 190 states have (on average 1.2210526315789474) internal successors, (232), 193 states have internal predecessors, (232), 95 states have call successors, (95), 23 states have call predecessors, (95), 23 states have return successors, (97), 93 states have call predecessors, (97), 93 states have call successors, (97) [2022-07-22 22:31:31,760 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 310 states to 310 states and 424 transitions. [2022-07-22 22:31:31,760 INFO L78 Accepts]: Start accepts. Automaton has 310 states and 424 transitions. Word has length 104 [2022-07-22 22:31:31,760 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 22:31:31,760 INFO L495 AbstractCegarLoop]: Abstraction has 310 states and 424 transitions. [2022-07-22 22:31:31,761 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 7.0) internal successors, (42), 6 states have internal predecessors, (42), 3 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2022-07-22 22:31:31,761 INFO L276 IsEmpty]: Start isEmpty. Operand 310 states and 424 transitions. [2022-07-22 22:31:31,762 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2022-07-22 22:31:31,762 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 22:31:31,762 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 3, 3, 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] [2022-07-22 22:31:31,801 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-07-22 22:31:31,979 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-22 22:31:31,980 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-22 22:31:31,980 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 22:31:31,980 INFO L85 PathProgramCache]: Analyzing trace with hash -1602100200, now seen corresponding path program 1 times [2022-07-22 22:31:31,980 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 22:31:31,980 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [381344706] [2022-07-22 22:31:31,980 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 22:31:31,981 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 22:31:32,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:31:32,210 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-22 22:31:32,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:31:32,220 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-07-22 22:31:32,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:31:32,230 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-07-22 22:31:32,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:31:32,246 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-07-22 22:31:32,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:31:32,259 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-22 22:31:32,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:31:32,276 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-07-22 22:31:32,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:31:32,281 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-07-22 22:31:32,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:31:32,291 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-22 22:31:32,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:31:32,296 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-07-22 22:31:32,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:31:32,311 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-07-22 22:31:32,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:31:32,332 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-22 22:31:32,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:31:32,355 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2022-07-22 22:31:32,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:31:32,360 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2022-07-22 22:31:32,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:31:32,365 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2022-07-22 22:31:32,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:31:32,371 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2022-07-22 22:31:32,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:31:32,375 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2022-07-22 22:31:32,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:31:32,380 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2022-07-22 22:31:32,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:31:32,385 INFO L134 CoverageAnalysis]: Checked inductivity of 111 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 105 trivial. 0 not checked. [2022-07-22 22:31:32,386 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 22:31:32,386 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [381344706] [2022-07-22 22:31:32,386 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [381344706] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-22 22:31:32,386 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1469606548] [2022-07-22 22:31:32,386 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 22:31:32,386 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-22 22:31:32,386 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 22:31:32,388 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) [2022-07-22 22:31:32,444 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-07-22 22:31:32,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:31:32,761 INFO L263 TraceCheckSpWp]: Trace formula consists of 2238 conjuncts, 7 conjunts are in the unsatisfiable core [2022-07-22 22:31:32,764 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-22 22:31:32,868 INFO L134 CoverageAnalysis]: Checked inductivity of 111 backedges. 56 proven. 0 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2022-07-22 22:31:32,868 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-22 22:31:32,868 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1469606548] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 22:31:32,868 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-22 22:31:32,869 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [9] total 15 [2022-07-22 22:31:32,869 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2143121620] [2022-07-22 22:31:32,869 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 22:31:32,869 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-07-22 22:31:32,869 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 22:31:32,870 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-07-22 22:31:32,870 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=177, Unknown=0, NotChecked=0, Total=210 [2022-07-22 22:31:32,870 INFO L87 Difference]: Start difference. First operand 310 states and 424 transitions. Second operand has 8 states, 8 states have (on average 6.0) internal successors, (48), 8 states have internal predecessors, (48), 4 states have call successors, (17), 2 states have call predecessors, (17), 4 states have return successors, (15), 4 states have call predecessors, (15), 4 states have call successors, (15) [2022-07-22 22:31:33,153 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 22:31:33,153 INFO L93 Difference]: Finished difference Result 605 states and 845 transitions. [2022-07-22 22:31:33,167 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-07-22 22:31:33,170 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 6.0) internal successors, (48), 8 states have internal predecessors, (48), 4 states have call successors, (17), 2 states have call predecessors, (17), 4 states have return successors, (15), 4 states have call predecessors, (15), 4 states have call successors, (15) Word has length 112 [2022-07-22 22:31:33,171 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 22:31:33,172 INFO L225 Difference]: With dead ends: 605 [2022-07-22 22:31:33,173 INFO L226 Difference]: Without dead ends: 331 [2022-07-22 22:31:33,174 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 155 GetRequests, 137 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=58, Invalid=322, Unknown=0, NotChecked=0, Total=380 [2022-07-22 22:31:33,176 INFO L413 NwaCegarLoop]: 368 mSDtfsCounter, 506 mSDsluCounter, 1742 mSDsCounter, 0 mSdLazyCounter, 326 mSolverCounterSat, 50 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 530 SdHoareTripleChecker+Valid, 2110 SdHoareTripleChecker+Invalid, 376 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 50 IncrementalHoareTripleChecker+Valid, 326 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-07-22 22:31:33,176 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [530 Valid, 2110 Invalid, 376 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [50 Valid, 326 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-07-22 22:31:33,178 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 331 states. [2022-07-22 22:31:33,196 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 331 to 329. [2022-07-22 22:31:33,197 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 329 states, 206 states have (on average 1.233009708737864) internal successors, (254), 209 states have internal predecessors, (254), 97 states have call successors, (97), 23 states have call predecessors, (97), 24 states have return successors, (110), 96 states have call predecessors, (110), 95 states have call successors, (110) [2022-07-22 22:31:33,199 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 329 states to 329 states and 461 transitions. [2022-07-22 22:31:33,199 INFO L78 Accepts]: Start accepts. Automaton has 329 states and 461 transitions. Word has length 112 [2022-07-22 22:31:33,200 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 22:31:33,200 INFO L495 AbstractCegarLoop]: Abstraction has 329 states and 461 transitions. [2022-07-22 22:31:33,200 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 6.0) internal successors, (48), 8 states have internal predecessors, (48), 4 states have call successors, (17), 2 states have call predecessors, (17), 4 states have return successors, (15), 4 states have call predecessors, (15), 4 states have call successors, (15) [2022-07-22 22:31:33,200 INFO L276 IsEmpty]: Start isEmpty. Operand 329 states and 461 transitions. [2022-07-22 22:31:33,201 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2022-07-22 22:31:33,201 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 22:31:33,202 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 3, 3, 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] [2022-07-22 22:31:33,244 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-07-22 22:31:33,423 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,SelfDestructingSolverStorable2 [2022-07-22 22:31:33,423 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-22 22:31:33,424 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 22:31:33,424 INFO L85 PathProgramCache]: Analyzing trace with hash -1616611866, now seen corresponding path program 1 times [2022-07-22 22:31:33,424 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 22:31:33,424 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1674080230] [2022-07-22 22:31:33,424 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 22:31:33,424 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 22:31:33,485 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-07-22 22:31:33,486 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1080302544] [2022-07-22 22:31:33,486 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 22:31:33,486 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-22 22:31:33,486 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 22:31:33,487 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) [2022-07-22 22:31:33,545 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-07-22 22:31:33,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:31:33,887 INFO L263 TraceCheckSpWp]: Trace formula consists of 2379 conjuncts, 7 conjunts are in the unsatisfiable core [2022-07-22 22:31:33,890 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-22 22:31:33,947 INFO L134 CoverageAnalysis]: Checked inductivity of 111 backedges. 56 proven. 0 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2022-07-22 22:31:33,948 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-22 22:31:33,948 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 22:31:33,948 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1674080230] [2022-07-22 22:31:33,948 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-07-22 22:31:33,948 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1080302544] [2022-07-22 22:31:33,948 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1080302544] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 22:31:33,948 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 22:31:33,948 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-22 22:31:33,949 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1070972841] [2022-07-22 22:31:33,949 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 22:31:33,949 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-22 22:31:33,949 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 22:31:33,950 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-22 22:31:33,950 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-07-22 22:31:33,950 INFO L87 Difference]: Start difference. First operand 329 states and 461 transitions. Second operand has 7 states, 7 states have (on average 8.428571428571429) internal successors, (59), 7 states have internal predecessors, (59), 4 states have call successors, (19), 2 states have call predecessors, (19), 3 states have return successors, (17), 4 states have call predecessors, (17), 4 states have call successors, (17) [2022-07-22 22:31:34,153 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 22:31:34,154 INFO L93 Difference]: Finished difference Result 630 states and 894 transitions. [2022-07-22 22:31:34,154 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-07-22 22:31:34,154 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.428571428571429) internal successors, (59), 7 states have internal predecessors, (59), 4 states have call successors, (19), 2 states have call predecessors, (19), 3 states have return successors, (17), 4 states have call predecessors, (17), 4 states have call successors, (17) Word has length 127 [2022-07-22 22:31:34,155 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 22:31:34,156 INFO L225 Difference]: With dead ends: 630 [2022-07-22 22:31:34,156 INFO L226 Difference]: Without dead ends: 337 [2022-07-22 22:31:34,157 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 131 GetRequests, 121 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2022-07-22 22:31:34,158 INFO L413 NwaCegarLoop]: 377 mSDtfsCounter, 466 mSDsluCounter, 1418 mSDsCounter, 0 mSdLazyCounter, 228 mSolverCounterSat, 33 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 474 SdHoareTripleChecker+Valid, 1795 SdHoareTripleChecker+Invalid, 261 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 228 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-22 22:31:34,158 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [474 Valid, 1795 Invalid, 261 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [33 Valid, 228 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-22 22:31:34,159 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 337 states. [2022-07-22 22:31:34,167 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 337 to 329. [2022-07-22 22:31:34,168 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 329 states, 206 states have (on average 1.233009708737864) internal successors, (254), 209 states have internal predecessors, (254), 97 states have call successors, (97), 23 states have call predecessors, (97), 24 states have return successors, (110), 96 states have call predecessors, (110), 95 states have call successors, (110) [2022-07-22 22:31:34,170 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 329 states to 329 states and 461 transitions. [2022-07-22 22:31:34,170 INFO L78 Accepts]: Start accepts. Automaton has 329 states and 461 transitions. Word has length 127 [2022-07-22 22:31:34,170 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 22:31:34,170 INFO L495 AbstractCegarLoop]: Abstraction has 329 states and 461 transitions. [2022-07-22 22:31:34,171 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 8.428571428571429) internal successors, (59), 7 states have internal predecessors, (59), 4 states have call successors, (19), 2 states have call predecessors, (19), 3 states have return successors, (17), 4 states have call predecessors, (17), 4 states have call successors, (17) [2022-07-22 22:31:34,171 INFO L276 IsEmpty]: Start isEmpty. Operand 329 states and 461 transitions. [2022-07-22 22:31:34,172 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2022-07-22 22:31:34,172 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 22:31:34,172 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 22:31:34,208 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-07-22 22:31:34,392 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-22 22:31:34,393 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-22 22:31:34,393 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 22:31:34,393 INFO L85 PathProgramCache]: Analyzing trace with hash 1521582877, now seen corresponding path program 1 times [2022-07-22 22:31:34,393 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 22:31:34,394 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [174139125] [2022-07-22 22:31:34,394 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 22:31:34,394 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 22:31:34,441 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-07-22 22:31:34,442 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [217422401] [2022-07-22 22:31:34,442 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 22:31:34,442 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-22 22:31:34,442 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 22:31:34,443 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) [2022-07-22 22:31:34,444 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-07-22 22:31:34,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:31:34,846 INFO L263 TraceCheckSpWp]: Trace formula consists of 2451 conjuncts, 9 conjunts are in the unsatisfiable core [2022-07-22 22:31:34,849 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-22 22:31:34,936 INFO L134 CoverageAnalysis]: Checked inductivity of 115 backedges. 59 proven. 0 refuted. 0 times theorem prover too weak. 56 trivial. 0 not checked. [2022-07-22 22:31:34,936 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-22 22:31:34,936 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 22:31:34,936 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [174139125] [2022-07-22 22:31:34,936 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-07-22 22:31:34,937 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [217422401] [2022-07-22 22:31:34,937 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [217422401] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 22:31:34,937 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 22:31:34,937 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-07-22 22:31:34,937 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [305423248] [2022-07-22 22:31:34,937 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 22:31:34,938 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-22 22:31:34,938 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 22:31:34,938 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-22 22:31:34,938 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-07-22 22:31:34,938 INFO L87 Difference]: Start difference. First operand 329 states and 461 transitions. Second operand has 9 states, 9 states have (on average 8.11111111111111) internal successors, (73), 9 states have internal predecessors, (73), 5 states have call successors, (20), 2 states have call predecessors, (20), 4 states have return successors, (18), 5 states have call predecessors, (18), 5 states have call successors, (18) [2022-07-22 22:31:35,285 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 22:31:35,285 INFO L93 Difference]: Finished difference Result 640 states and 907 transitions. [2022-07-22 22:31:35,285 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-07-22 22:31:35,286 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 8.11111111111111) internal successors, (73), 9 states have internal predecessors, (73), 5 states have call successors, (20), 2 states have call predecessors, (20), 4 states have return successors, (18), 5 states have call predecessors, (18), 5 states have call successors, (18) Word has length 143 [2022-07-22 22:31:35,286 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 22:31:35,287 INFO L225 Difference]: With dead ends: 640 [2022-07-22 22:31:35,287 INFO L226 Difference]: Without dead ends: 347 [2022-07-22 22:31:35,289 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 151 GetRequests, 137 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=54, Invalid=186, Unknown=0, NotChecked=0, Total=240 [2022-07-22 22:31:35,289 INFO L413 NwaCegarLoop]: 362 mSDtfsCounter, 537 mSDsluCounter, 2046 mSDsCounter, 0 mSdLazyCounter, 455 mSolverCounterSat, 55 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 561 SdHoareTripleChecker+Valid, 2408 SdHoareTripleChecker+Invalid, 510 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 55 IncrementalHoareTripleChecker+Valid, 455 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-07-22 22:31:35,290 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [561 Valid, 2408 Invalid, 510 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [55 Valid, 455 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-07-22 22:31:35,290 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 347 states. [2022-07-22 22:31:35,316 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 347 to 329. [2022-07-22 22:31:35,316 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 329 states, 206 states have (on average 1.233009708737864) internal successors, (254), 209 states have internal predecessors, (254), 97 states have call successors, (97), 23 states have call predecessors, (97), 24 states have return successors, (110), 96 states have call predecessors, (110), 95 states have call successors, (110) [2022-07-22 22:31:35,318 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 329 states to 329 states and 461 transitions. [2022-07-22 22:31:35,319 INFO L78 Accepts]: Start accepts. Automaton has 329 states and 461 transitions. Word has length 143 [2022-07-22 22:31:35,319 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 22:31:35,319 INFO L495 AbstractCegarLoop]: Abstraction has 329 states and 461 transitions. [2022-07-22 22:31:35,319 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 8.11111111111111) internal successors, (73), 9 states have internal predecessors, (73), 5 states have call successors, (20), 2 states have call predecessors, (20), 4 states have return successors, (18), 5 states have call predecessors, (18), 5 states have call successors, (18) [2022-07-22 22:31:35,319 INFO L276 IsEmpty]: Start isEmpty. Operand 329 states and 461 transitions. [2022-07-22 22:31:35,320 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2022-07-22 22:31:35,321 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 22:31:35,321 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 3, 3, 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] [2022-07-22 22:31:35,342 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-07-22 22:31:35,534 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-22 22:31:35,534 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-22 22:31:35,534 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 22:31:35,534 INFO L85 PathProgramCache]: Analyzing trace with hash -1907107023, now seen corresponding path program 1 times [2022-07-22 22:31:35,534 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 22:31:35,534 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [120596417] [2022-07-22 22:31:35,534 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 22:31:35,535 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 22:31:35,584 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-07-22 22:31:35,585 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1515501279] [2022-07-22 22:31:35,585 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 22:31:35,585 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-22 22:31:35,585 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 22:31:35,586 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) [2022-07-22 22:31:35,587 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-07-22 22:31:35,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:31:35,985 INFO L263 TraceCheckSpWp]: Trace formula consists of 2592 conjuncts, 7 conjunts are in the unsatisfiable core [2022-07-22 22:31:35,989 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-22 22:31:36,053 INFO L134 CoverageAnalysis]: Checked inductivity of 130 backedges. 51 proven. 0 refuted. 0 times theorem prover too weak. 79 trivial. 0 not checked. [2022-07-22 22:31:36,054 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-22 22:31:36,054 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 22:31:36,054 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [120596417] [2022-07-22 22:31:36,054 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-07-22 22:31:36,054 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1515501279] [2022-07-22 22:31:36,054 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1515501279] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 22:31:36,054 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 22:31:36,055 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-22 22:31:36,055 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [710019167] [2022-07-22 22:31:36,055 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 22:31:36,055 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-07-22 22:31:36,055 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 22:31:36,056 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-07-22 22:31:36,056 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-07-22 22:31:36,056 INFO L87 Difference]: Start difference. First operand 329 states and 461 transitions. Second operand has 8 states, 7 states have (on average 10.428571428571429) internal successors, (73), 7 states have internal predecessors, (73), 4 states have call successors, (20), 3 states have call predecessors, (20), 3 states have return successors, (18), 3 states have call predecessors, (18), 4 states have call successors, (18) [2022-07-22 22:31:36,268 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 22:31:36,268 INFO L93 Difference]: Finished difference Result 595 states and 843 transitions. [2022-07-22 22:31:36,268 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-07-22 22:31:36,269 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 10.428571428571429) internal successors, (73), 7 states have internal predecessors, (73), 4 states have call successors, (20), 3 states have call predecessors, (20), 3 states have return successors, (18), 3 states have call predecessors, (18), 4 states have call successors, (18) Word has length 158 [2022-07-22 22:31:36,269 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 22:31:36,271 INFO L225 Difference]: With dead ends: 595 [2022-07-22 22:31:36,271 INFO L226 Difference]: Without dead ends: 331 [2022-07-22 22:31:36,272 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 164 GetRequests, 153 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=37, Invalid=119, Unknown=0, NotChecked=0, Total=156 [2022-07-22 22:31:36,273 INFO L413 NwaCegarLoop]: 373 mSDtfsCounter, 487 mSDsluCounter, 1720 mSDsCounter, 0 mSdLazyCounter, 272 mSolverCounterSat, 59 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 491 SdHoareTripleChecker+Valid, 2093 SdHoareTripleChecker+Invalid, 331 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 59 IncrementalHoareTripleChecker+Valid, 272 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-07-22 22:31:36,273 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [491 Valid, 2093 Invalid, 331 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [59 Valid, 272 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-07-22 22:31:36,273 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 331 states. [2022-07-22 22:31:36,282 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 331 to 331. [2022-07-22 22:31:36,283 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 331 states, 207 states have (on average 1.2318840579710144) internal successors, (255), 211 states have internal predecessors, (255), 97 states have call successors, (97), 23 states have call predecessors, (97), 25 states have return successors, (112), 96 states have call predecessors, (112), 95 states have call successors, (112) [2022-07-22 22:31:36,285 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 331 states to 331 states and 464 transitions. [2022-07-22 22:31:36,285 INFO L78 Accepts]: Start accepts. Automaton has 331 states and 464 transitions. Word has length 158 [2022-07-22 22:31:36,286 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 22:31:36,286 INFO L495 AbstractCegarLoop]: Abstraction has 331 states and 464 transitions. [2022-07-22 22:31:36,286 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 10.428571428571429) internal successors, (73), 7 states have internal predecessors, (73), 4 states have call successors, (20), 3 states have call predecessors, (20), 3 states have return successors, (18), 3 states have call predecessors, (18), 4 states have call successors, (18) [2022-07-22 22:31:36,286 INFO L276 IsEmpty]: Start isEmpty. Operand 331 states and 464 transitions. [2022-07-22 22:31:36,287 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 175 [2022-07-22 22:31:36,287 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 22:31:36,288 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 4, 4, 3, 3, 3, 3, 3, 3, 3, 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] [2022-07-22 22:31:36,324 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-07-22 22:31:36,524 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-22 22:31:36,524 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-22 22:31:36,524 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 22:31:36,524 INFO L85 PathProgramCache]: Analyzing trace with hash -2069947675, now seen corresponding path program 1 times [2022-07-22 22:31:36,524 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 22:31:36,524 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [469787320] [2022-07-22 22:31:36,524 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 22:31:36,525 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 22:31:36,611 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-07-22 22:31:36,612 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [902573432] [2022-07-22 22:31:36,612 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 22:31:36,612 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-22 22:31:36,612 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 22:31:36,628 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) [2022-07-22 22:31:36,629 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-07-22 22:31:37,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:31:37,041 INFO L263 TraceCheckSpWp]: Trace formula consists of 2692 conjuncts, 9 conjunts are in the unsatisfiable core [2022-07-22 22:31:37,045 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-22 22:31:37,120 INFO L134 CoverageAnalysis]: Checked inductivity of 162 backedges. 81 proven. 0 refuted. 0 times theorem prover too weak. 81 trivial. 0 not checked. [2022-07-22 22:31:37,120 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-22 22:31:37,120 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 22:31:37,121 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [469787320] [2022-07-22 22:31:37,121 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-07-22 22:31:37,121 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [902573432] [2022-07-22 22:31:37,121 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [902573432] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 22:31:37,121 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 22:31:37,121 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-07-22 22:31:37,121 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1365450072] [2022-07-22 22:31:37,121 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 22:31:37,122 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-07-22 22:31:37,122 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 22:31:37,122 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-07-22 22:31:37,122 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-07-22 22:31:37,123 INFO L87 Difference]: Start difference. First operand 331 states and 464 transitions. Second operand has 10 states, 9 states have (on average 9.444444444444445) internal successors, (85), 9 states have internal predecessors, (85), 5 states have call successors, (22), 3 states have call predecessors, (22), 4 states have return successors, (20), 4 states have call predecessors, (20), 5 states have call successors, (20) [2022-07-22 22:31:37,476 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 22:31:37,476 INFO L93 Difference]: Finished difference Result 613 states and 869 transitions. [2022-07-22 22:31:37,477 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-07-22 22:31:37,477 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 9.444444444444445) internal successors, (85), 9 states have internal predecessors, (85), 5 states have call successors, (22), 3 states have call predecessors, (22), 4 states have return successors, (20), 4 states have call predecessors, (20), 5 states have call successors, (20) Word has length 174 [2022-07-22 22:31:37,477 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 22:31:37,479 INFO L225 Difference]: With dead ends: 613 [2022-07-22 22:31:37,479 INFO L226 Difference]: Without dead ends: 347 [2022-07-22 22:31:37,481 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 184 GetRequests, 169 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=51, Invalid=221, Unknown=0, NotChecked=0, Total=272 [2022-07-22 22:31:37,481 INFO L413 NwaCegarLoop]: 375 mSDtfsCounter, 519 mSDsluCounter, 2404 mSDsCounter, 0 mSdLazyCounter, 524 mSolverCounterSat, 77 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 539 SdHoareTripleChecker+Valid, 2779 SdHoareTripleChecker+Invalid, 601 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 77 IncrementalHoareTripleChecker+Valid, 524 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-07-22 22:31:37,481 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [539 Valid, 2779 Invalid, 601 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [77 Valid, 524 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-07-22 22:31:37,482 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 347 states. [2022-07-22 22:31:37,491 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 347 to 345. [2022-07-22 22:31:37,491 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 345 states, 220 states have (on average 1.240909090909091) internal successors, (273), 223 states have internal predecessors, (273), 98 states have call successors, (98), 23 states have call predecessors, (98), 25 states have return successors, (113), 98 states have call predecessors, (113), 96 states have call successors, (113) [2022-07-22 22:31:37,493 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 345 states to 345 states and 484 transitions. [2022-07-22 22:31:37,493 INFO L78 Accepts]: Start accepts. Automaton has 345 states and 484 transitions. Word has length 174 [2022-07-22 22:31:37,494 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 22:31:37,494 INFO L495 AbstractCegarLoop]: Abstraction has 345 states and 484 transitions. [2022-07-22 22:31:37,494 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 9.444444444444445) internal successors, (85), 9 states have internal predecessors, (85), 5 states have call successors, (22), 3 states have call predecessors, (22), 4 states have return successors, (20), 4 states have call predecessors, (20), 5 states have call successors, (20) [2022-07-22 22:31:37,494 INFO L276 IsEmpty]: Start isEmpty. Operand 345 states and 484 transitions. [2022-07-22 22:31:37,496 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 205 [2022-07-22 22:31:37,496 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 22:31:37,496 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 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] [2022-07-22 22:31:37,519 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2022-07-22 22:31:37,717 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-22 22:31:37,717 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-22 22:31:37,718 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 22:31:37,718 INFO L85 PathProgramCache]: Analyzing trace with hash -586575313, now seen corresponding path program 1 times [2022-07-22 22:31:37,718 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 22:31:37,718 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [248300363] [2022-07-22 22:31:37,718 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 22:31:37,718 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 22:31:37,807 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-07-22 22:31:37,807 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [332933913] [2022-07-22 22:31:37,808 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 22:31:37,808 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-22 22:31:37,808 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 22:31:37,809 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) [2022-07-22 22:31:37,810 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-07-22 22:31:38,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:31:38,272 INFO L263 TraceCheckSpWp]: Trace formula consists of 2974 conjuncts, 9 conjunts are in the unsatisfiable core [2022-07-22 22:31:38,298 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-22 22:31:38,369 INFO L134 CoverageAnalysis]: Checked inductivity of 237 backedges. 120 proven. 0 refuted. 0 times theorem prover too weak. 117 trivial. 0 not checked. [2022-07-22 22:31:38,369 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-22 22:31:38,369 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 22:31:38,369 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [248300363] [2022-07-22 22:31:38,370 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-07-22 22:31:38,370 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [332933913] [2022-07-22 22:31:38,370 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [332933913] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 22:31:38,370 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 22:31:38,370 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-07-22 22:31:38,370 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [893825283] [2022-07-22 22:31:38,370 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 22:31:38,371 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-22 22:31:38,371 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 22:31:38,371 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-22 22:31:38,371 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-07-22 22:31:38,372 INFO L87 Difference]: Start difference. First operand 345 states and 484 transitions. Second operand has 9 states, 8 states have (on average 11.625) internal successors, (93), 8 states have internal predecessors, (93), 5 states have call successors, (24), 3 states have call predecessors, (24), 3 states have return successors, (22), 4 states have call predecessors, (22), 5 states have call successors, (22) [2022-07-22 22:31:38,651 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 22:31:38,651 INFO L93 Difference]: Finished difference Result 633 states and 897 transitions. [2022-07-22 22:31:38,651 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-07-22 22:31:38,652 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 11.625) internal successors, (93), 8 states have internal predecessors, (93), 5 states have call successors, (24), 3 states have call predecessors, (24), 3 states have return successors, (22), 4 states have call predecessors, (22), 5 states have call successors, (22) Word has length 204 [2022-07-22 22:31:38,652 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 22:31:38,653 INFO L225 Difference]: With dead ends: 633 [2022-07-22 22:31:38,653 INFO L226 Difference]: Without dead ends: 353 [2022-07-22 22:31:38,655 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 213 GetRequests, 199 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=54, Invalid=186, Unknown=0, NotChecked=0, Total=240 [2022-07-22 22:31:38,655 INFO L413 NwaCegarLoop]: 367 mSDtfsCounter, 511 mSDsluCounter, 2024 mSDsCounter, 0 mSdLazyCounter, 387 mSolverCounterSat, 61 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 515 SdHoareTripleChecker+Valid, 2391 SdHoareTripleChecker+Invalid, 448 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 61 IncrementalHoareTripleChecker+Valid, 387 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-07-22 22:31:38,655 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [515 Valid, 2391 Invalid, 448 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [61 Valid, 387 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-07-22 22:31:38,656 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 353 states. [2022-07-22 22:31:38,665 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 353 to 345. [2022-07-22 22:31:38,665 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 345 states, 220 states have (on average 1.240909090909091) internal successors, (273), 223 states have internal predecessors, (273), 98 states have call successors, (98), 23 states have call predecessors, (98), 25 states have return successors, (113), 98 states have call predecessors, (113), 96 states have call successors, (113) [2022-07-22 22:31:38,668 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 345 states to 345 states and 484 transitions. [2022-07-22 22:31:38,668 INFO L78 Accepts]: Start accepts. Automaton has 345 states and 484 transitions. Word has length 204 [2022-07-22 22:31:38,668 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 22:31:38,668 INFO L495 AbstractCegarLoop]: Abstraction has 345 states and 484 transitions. [2022-07-22 22:31:38,669 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 11.625) internal successors, (93), 8 states have internal predecessors, (93), 5 states have call successors, (24), 3 states have call predecessors, (24), 3 states have return successors, (22), 4 states have call predecessors, (22), 5 states have call successors, (22) [2022-07-22 22:31:38,669 INFO L276 IsEmpty]: Start isEmpty. Operand 345 states and 484 transitions. [2022-07-22 22:31:38,670 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 237 [2022-07-22 22:31:38,670 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 22:31:38,671 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 6, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2022-07-22 22:31:38,695 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2022-07-22 22:31:38,892 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-22 22:31:38,893 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-22 22:31:38,893 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 22:31:38,893 INFO L85 PathProgramCache]: Analyzing trace with hash -1182025265, now seen corresponding path program 1 times [2022-07-22 22:31:38,893 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 22:31:38,893 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1521921325] [2022-07-22 22:31:38,893 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 22:31:38,893 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 22:31:38,972 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-07-22 22:31:38,972 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [229700081] [2022-07-22 22:31:38,972 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 22:31:38,972 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-22 22:31:38,973 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 22:31:38,974 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) [2022-07-22 22:31:38,975 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2022-07-22 22:31:39,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:31:39,463 INFO L263 TraceCheckSpWp]: Trace formula consists of 3118 conjuncts, 11 conjunts are in the unsatisfiable core [2022-07-22 22:31:39,468 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-22 22:31:39,568 INFO L134 CoverageAnalysis]: Checked inductivity of 309 backedges. 185 proven. 0 refuted. 0 times theorem prover too weak. 124 trivial. 0 not checked. [2022-07-22 22:31:39,569 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-22 22:31:39,569 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 22:31:39,569 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1521921325] [2022-07-22 22:31:39,569 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-07-22 22:31:39,569 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [229700081] [2022-07-22 22:31:39,569 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [229700081] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 22:31:39,569 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 22:31:39,569 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-07-22 22:31:39,569 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [676226833] [2022-07-22 22:31:39,570 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 22:31:39,570 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-07-22 22:31:39,570 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 22:31:39,570 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-07-22 22:31:39,570 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=91, Unknown=0, NotChecked=0, Total=110 [2022-07-22 22:31:39,571 INFO L87 Difference]: Start difference. First operand 345 states and 484 transitions. Second operand has 11 states, 10 states have (on average 11.9) internal successors, (119), 10 states have internal predecessors, (119), 6 states have call successors, (26), 3 states have call predecessors, (26), 4 states have return successors, (24), 5 states have call predecessors, (24), 6 states have call successors, (24) [2022-07-22 22:31:40,007 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 22:31:40,007 INFO L93 Difference]: Finished difference Result 627 states and 887 transitions. [2022-07-22 22:31:40,008 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-07-22 22:31:40,008 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 11.9) internal successors, (119), 10 states have internal predecessors, (119), 6 states have call successors, (26), 3 states have call predecessors, (26), 4 states have return successors, (24), 5 states have call predecessors, (24), 6 states have call successors, (24) Word has length 236 [2022-07-22 22:31:40,008 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 22:31:40,010 INFO L225 Difference]: With dead ends: 627 [2022-07-22 22:31:40,010 INFO L226 Difference]: Without dead ends: 347 [2022-07-22 22:31:40,011 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 249 GetRequests, 231 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=68, Invalid=312, Unknown=0, NotChecked=0, Total=380 [2022-07-22 22:31:40,012 INFO L413 NwaCegarLoop]: 352 mSDtfsCounter, 582 mSDsluCounter, 2592 mSDsCounter, 0 mSdLazyCounter, 674 mSolverCounterSat, 83 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 602 SdHoareTripleChecker+Valid, 2944 SdHoareTripleChecker+Invalid, 757 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 83 IncrementalHoareTripleChecker+Valid, 674 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-07-22 22:31:40,012 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [602 Valid, 2944 Invalid, 757 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [83 Valid, 674 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-07-22 22:31:40,012 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 347 states. [2022-07-22 22:31:40,020 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 347 to 329. [2022-07-22 22:31:40,021 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 329 states, 206 states have (on average 1.233009708737864) internal successors, (254), 209 states have internal predecessors, (254), 97 states have call successors, (97), 23 states have call predecessors, (97), 24 states have return successors, (108), 96 states have call predecessors, (108), 95 states have call successors, (108) [2022-07-22 22:31:40,023 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 329 states to 329 states and 459 transitions. [2022-07-22 22:31:40,024 INFO L78 Accepts]: Start accepts. Automaton has 329 states and 459 transitions. Word has length 236 [2022-07-22 22:31:40,024 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 22:31:40,024 INFO L495 AbstractCegarLoop]: Abstraction has 329 states and 459 transitions. [2022-07-22 22:31:40,024 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 11.9) internal successors, (119), 10 states have internal predecessors, (119), 6 states have call successors, (26), 3 states have call predecessors, (26), 4 states have return successors, (24), 5 states have call predecessors, (24), 6 states have call successors, (24) [2022-07-22 22:31:40,024 INFO L276 IsEmpty]: Start isEmpty. Operand 329 states and 459 transitions. [2022-07-22 22:31:40,026 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 267 [2022-07-22 22:31:40,026 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 22:31:40,026 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 22:31:40,051 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2022-07-22 22:31:40,248 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,SelfDestructingSolverStorable8 [2022-07-22 22:31:40,249 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-22 22:31:40,249 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 22:31:40,249 INFO L85 PathProgramCache]: Analyzing trace with hash -1259871209, now seen corresponding path program 1 times [2022-07-22 22:31:40,249 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 22:31:40,249 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1322906906] [2022-07-22 22:31:40,249 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 22:31:40,249 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 22:31:40,338 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-07-22 22:31:40,339 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [546901147] [2022-07-22 22:31:40,339 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 22:31:40,339 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-22 22:31:40,339 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 22:31:40,340 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) [2022-07-22 22:31:40,341 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2022-07-22 22:31:40,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:31:40,879 INFO L263 TraceCheckSpWp]: Trace formula consists of 3400 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-22 22:31:40,884 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-22 22:31:40,917 INFO L134 CoverageAnalysis]: Checked inductivity of 444 backedges. 192 proven. 0 refuted. 0 times theorem prover too weak. 252 trivial. 0 not checked. [2022-07-22 22:31:40,917 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-22 22:31:40,917 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 22:31:40,917 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1322906906] [2022-07-22 22:31:40,917 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-07-22 22:31:40,917 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [546901147] [2022-07-22 22:31:40,917 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [546901147] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 22:31:40,918 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 22:31:40,918 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-22 22:31:40,918 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1734764964] [2022-07-22 22:31:40,918 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 22:31:40,919 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-22 22:31:40,919 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 22:31:40,919 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-22 22:31:40,919 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-22 22:31:40,920 INFO L87 Difference]: Start difference. First operand 329 states and 459 transitions. Second operand has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 3 states have internal predecessors, (95), 2 states have call successors, (24), 2 states have call predecessors, (24), 2 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2022-07-22 22:31:40,948 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 22:31:40,948 INFO L93 Difference]: Finished difference Result 446 states and 611 transitions. [2022-07-22 22:31:40,948 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-22 22:31:40,948 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 3 states have internal predecessors, (95), 2 states have call successors, (24), 2 states have call predecessors, (24), 2 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) Word has length 266 [2022-07-22 22:31:40,951 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 22:31:40,953 INFO L225 Difference]: With dead ends: 446 [2022-07-22 22:31:40,953 INFO L226 Difference]: Without dead ends: 339 [2022-07-22 22:31:40,953 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 265 GetRequests, 264 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-22 22:31:40,954 INFO L413 NwaCegarLoop]: 425 mSDtfsCounter, 16 mSDsluCounter, 393 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 818 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-22 22:31:40,955 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [22 Valid, 818 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-22 22:31:40,955 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 339 states. [2022-07-22 22:31:40,964 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 339 to 334. [2022-07-22 22:31:40,965 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 334 states, 211 states have (on average 1.2274881516587677) internal successors, (259), 214 states have internal predecessors, (259), 97 states have call successors, (97), 23 states have call predecessors, (97), 24 states have return successors, (108), 96 states have call predecessors, (108), 95 states have call successors, (108) [2022-07-22 22:31:40,966 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 334 states to 334 states and 464 transitions. [2022-07-22 22:31:40,967 INFO L78 Accepts]: Start accepts. Automaton has 334 states and 464 transitions. Word has length 266 [2022-07-22 22:31:40,967 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 22:31:40,967 INFO L495 AbstractCegarLoop]: Abstraction has 334 states and 464 transitions. [2022-07-22 22:31:40,967 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 3 states have internal predecessors, (95), 2 states have call successors, (24), 2 states have call predecessors, (24), 2 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2022-07-22 22:31:40,967 INFO L276 IsEmpty]: Start isEmpty. Operand 334 states and 464 transitions. [2022-07-22 22:31:40,969 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 269 [2022-07-22 22:31:40,969 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 22:31:40,969 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 22:31:41,015 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2022-07-22 22:31:41,192 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2022-07-22 22:31:41,192 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-22 22:31:41,192 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 22:31:41,192 INFO L85 PathProgramCache]: Analyzing trace with hash -1800338285, now seen corresponding path program 1 times [2022-07-22 22:31:41,192 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 22:31:41,192 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1697968553] [2022-07-22 22:31:41,193 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 22:31:41,193 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 22:31:41,248 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-07-22 22:31:41,249 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1913393732] [2022-07-22 22:31:41,249 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 22:31:41,249 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-22 22:31:41,249 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 22:31:41,250 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) [2022-07-22 22:31:41,265 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2022-07-22 22:31:41,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:31:41,844 INFO L263 TraceCheckSpWp]: Trace formula consists of 3404 conjuncts, 9 conjunts are in the unsatisfiable core [2022-07-22 22:31:41,849 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-22 22:31:41,943 INFO L134 CoverageAnalysis]: Checked inductivity of 444 backedges. 224 proven. 0 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2022-07-22 22:31:41,944 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-22 22:31:41,944 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 22:31:41,944 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1697968553] [2022-07-22 22:31:41,944 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-07-22 22:31:41,944 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1913393732] [2022-07-22 22:31:41,944 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1913393732] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 22:31:41,944 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 22:31:41,944 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-22 22:31:41,944 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1300010015] [2022-07-22 22:31:41,944 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 22:31:41,944 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-22 22:31:41,945 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 22:31:41,945 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-22 22:31:41,945 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-07-22 22:31:41,945 INFO L87 Difference]: Start difference. First operand 334 states and 464 transitions. Second operand has 6 states, 6 states have (on average 15.5) internal successors, (93), 6 states have internal predecessors, (93), 2 states have call successors, (24), 2 states have call predecessors, (24), 2 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2022-07-22 22:31:42,181 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 22:31:42,182 INFO L93 Difference]: Finished difference Result 668 states and 945 transitions. [2022-07-22 22:31:42,182 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-07-22 22:31:42,182 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 15.5) internal successors, (93), 6 states have internal predecessors, (93), 2 states have call successors, (24), 2 states have call predecessors, (24), 2 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) Word has length 268 [2022-07-22 22:31:42,182 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 22:31:42,184 INFO L225 Difference]: With dead ends: 668 [2022-07-22 22:31:42,184 INFO L226 Difference]: Without dead ends: 370 [2022-07-22 22:31:42,186 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 270 GetRequests, 263 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2022-07-22 22:31:42,186 INFO L413 NwaCegarLoop]: 418 mSDtfsCounter, 21 mSDsluCounter, 1522 mSDsCounter, 0 mSdLazyCounter, 186 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 1940 SdHoareTripleChecker+Invalid, 189 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 186 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-07-22 22:31:42,186 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [22 Valid, 1940 Invalid, 189 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 186 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-07-22 22:31:42,187 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 370 states. [2022-07-22 22:31:42,196 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 370 to 342. [2022-07-22 22:31:42,197 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 342 states, 219 states have (on average 1.2283105022831051) internal successors, (269), 222 states have internal predecessors, (269), 97 states have call successors, (97), 23 states have call predecessors, (97), 24 states have return successors, (108), 96 states have call predecessors, (108), 95 states have call successors, (108) [2022-07-22 22:31:42,198 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 342 states to 342 states and 474 transitions. [2022-07-22 22:31:42,198 INFO L78 Accepts]: Start accepts. Automaton has 342 states and 474 transitions. Word has length 268 [2022-07-22 22:31:42,199 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 22:31:42,199 INFO L495 AbstractCegarLoop]: Abstraction has 342 states and 474 transitions. [2022-07-22 22:31:42,199 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 15.5) internal successors, (93), 6 states have internal predecessors, (93), 2 states have call successors, (24), 2 states have call predecessors, (24), 2 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2022-07-22 22:31:42,199 INFO L276 IsEmpty]: Start isEmpty. Operand 342 states and 474 transitions. [2022-07-22 22:31:42,201 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 269 [2022-07-22 22:31:42,201 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 22:31:42,201 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 22:31:42,227 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2022-07-22 22:31:42,424 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2022-07-22 22:31:42,425 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-22 22:31:42,425 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 22:31:42,425 INFO L85 PathProgramCache]: Analyzing trace with hash 1635646233, now seen corresponding path program 1 times [2022-07-22 22:31:42,425 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 22:31:42,425 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [439612091] [2022-07-22 22:31:42,425 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 22:31:42,425 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 22:31:42,497 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-07-22 22:31:42,498 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [13425754] [2022-07-22 22:31:42,498 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 22:31:42,498 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-22 22:31:42,498 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 22:31:42,499 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-22 22:31:42,500 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2022-07-22 22:31:43,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:31:43,086 INFO L263 TraceCheckSpWp]: Trace formula consists of 3395 conjuncts, 3 conjunts are in the unsatisfiable core [2022-07-22 22:31:43,092 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-22 22:31:43,109 INFO L134 CoverageAnalysis]: Checked inductivity of 444 backedges. 228 proven. 0 refuted. 0 times theorem prover too weak. 216 trivial. 0 not checked. [2022-07-22 22:31:43,109 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-22 22:31:43,109 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 22:31:43,109 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [439612091] [2022-07-22 22:31:43,109 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-07-22 22:31:43,109 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [13425754] [2022-07-22 22:31:43,110 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [13425754] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 22:31:43,110 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 22:31:43,110 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-22 22:31:43,110 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1238591176] [2022-07-22 22:31:43,110 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 22:31:43,111 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-22 22:31:43,111 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 22:31:43,112 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-22 22:31:43,112 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-22 22:31:43,112 INFO L87 Difference]: Start difference. First operand 342 states and 474 transitions. Second operand has 4 states, 4 states have (on average 23.75) internal successors, (95), 4 states have internal predecessors, (95), 2 states have call successors, (24), 2 states have call predecessors, (24), 2 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2022-07-22 22:31:43,136 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 22:31:43,137 INFO L93 Difference]: Finished difference Result 656 states and 921 transitions. [2022-07-22 22:31:43,137 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-22 22:31:43,137 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 23.75) internal successors, (95), 4 states have internal predecessors, (95), 2 states have call successors, (24), 2 states have call predecessors, (24), 2 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) Word has length 268 [2022-07-22 22:31:43,138 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 22:31:43,139 INFO L225 Difference]: With dead ends: 656 [2022-07-22 22:31:43,139 INFO L226 Difference]: Without dead ends: 350 [2022-07-22 22:31:43,140 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 268 GetRequests, 265 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-07-22 22:31:43,141 INFO L413 NwaCegarLoop]: 416 mSDtfsCounter, 3 mSDsluCounter, 827 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 1243 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-22 22:31:43,142 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 1243 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-22 22:31:43,142 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 350 states. [2022-07-22 22:31:43,153 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 350 to 346. [2022-07-22 22:31:43,154 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 346 states, 223 states have (on average 1.2242152466367713) internal successors, (273), 226 states have internal predecessors, (273), 97 states have call successors, (97), 23 states have call predecessors, (97), 24 states have return successors, (108), 96 states have call predecessors, (108), 95 states have call successors, (108) [2022-07-22 22:31:43,155 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 346 states to 346 states and 478 transitions. [2022-07-22 22:31:43,155 INFO L78 Accepts]: Start accepts. Automaton has 346 states and 478 transitions. Word has length 268 [2022-07-22 22:31:43,156 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 22:31:43,156 INFO L495 AbstractCegarLoop]: Abstraction has 346 states and 478 transitions. [2022-07-22 22:31:43,156 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 23.75) internal successors, (95), 4 states have internal predecessors, (95), 2 states have call successors, (24), 2 states have call predecessors, (24), 2 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2022-07-22 22:31:43,156 INFO L276 IsEmpty]: Start isEmpty. Operand 346 states and 478 transitions. [2022-07-22 22:31:43,157 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 269 [2022-07-22 22:31:43,157 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 22:31:43,158 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 22:31:43,183 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2022-07-22 22:31:43,371 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2022-07-22 22:31:43,371 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-22 22:31:43,372 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 22:31:43,372 INFO L85 PathProgramCache]: Analyzing trace with hash -1140663521, now seen corresponding path program 1 times [2022-07-22 22:31:43,372 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 22:31:43,372 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [873211926] [2022-07-22 22:31:43,372 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 22:31:43,372 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 22:31:43,420 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-07-22 22:31:43,421 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [763369152] [2022-07-22 22:31:43,421 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 22:31:43,421 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-22 22:31:43,421 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 22:31:43,422 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-22 22:31:43,452 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2022-07-22 22:31:44,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:31:44,077 INFO L263 TraceCheckSpWp]: Trace formula consists of 3380 conjuncts, 71 conjunts are in the unsatisfiable core [2022-07-22 22:31:44,085 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-22 22:31:44,553 INFO L134 CoverageAnalysis]: Checked inductivity of 444 backedges. 256 proven. 0 refuted. 0 times theorem prover too weak. 188 trivial. 0 not checked. [2022-07-22 22:31:44,553 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-22 22:31:44,553 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 22:31:44,554 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [873211926] [2022-07-22 22:31:44,554 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-07-22 22:31:44,554 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [763369152] [2022-07-22 22:31:44,554 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [763369152] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 22:31:44,554 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 22:31:44,554 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-07-22 22:31:44,554 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [858481708] [2022-07-22 22:31:44,554 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 22:31:44,554 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-07-22 22:31:44,554 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 22:31:44,554 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-07-22 22:31:44,555 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=128, Unknown=0, NotChecked=0, Total=156 [2022-07-22 22:31:44,555 INFO L87 Difference]: Start difference. First operand 346 states and 478 transitions. Second operand has 13 states, 13 states have (on average 7.923076923076923) internal successors, (103), 13 states have internal predecessors, (103), 6 states have call successors, (24), 3 states have call predecessors, (24), 4 states have return successors, (22), 6 states have call predecessors, (22), 6 states have call successors, (22) [2022-07-22 22:31:44,971 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 22:31:44,971 INFO L93 Difference]: Finished difference Result 679 states and 949 transitions. [2022-07-22 22:31:44,971 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-07-22 22:31:44,971 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 7.923076923076923) internal successors, (103), 13 states have internal predecessors, (103), 6 states have call successors, (24), 3 states have call predecessors, (24), 4 states have return successors, (22), 6 states have call predecessors, (22), 6 states have call successors, (22) Word has length 268 [2022-07-22 22:31:44,972 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 22:31:44,973 INFO L225 Difference]: With dead ends: 679 [2022-07-22 22:31:44,973 INFO L226 Difference]: Without dead ends: 395 [2022-07-22 22:31:44,974 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 275 GetRequests, 253 SyntacticMatches, 3 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 62 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=84, Invalid=336, Unknown=0, NotChecked=0, Total=420 [2022-07-22 22:31:44,975 INFO L413 NwaCegarLoop]: 404 mSDtfsCounter, 74 mSDsluCounter, 2590 mSDsCounter, 0 mSdLazyCounter, 302 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 75 SdHoareTripleChecker+Valid, 2994 SdHoareTripleChecker+Invalid, 383 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 302 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 66 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-07-22 22:31:44,975 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [75 Valid, 2994 Invalid, 383 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 302 Invalid, 0 Unknown, 66 Unchecked, 0.2s Time] [2022-07-22 22:31:44,975 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 395 states. [2022-07-22 22:31:44,985 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 395 to 367. [2022-07-22 22:31:44,985 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 367 states, 240 states have (on average 1.2208333333333334) internal successors, (293), 243 states have internal predecessors, (293), 99 states have call successors, (99), 24 states have call predecessors, (99), 26 states have return successors, (116), 99 states have call predecessors, (116), 97 states have call successors, (116) [2022-07-22 22:31:44,987 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 367 states to 367 states and 508 transitions. [2022-07-22 22:31:44,987 INFO L78 Accepts]: Start accepts. Automaton has 367 states and 508 transitions. Word has length 268 [2022-07-22 22:31:44,987 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 22:31:44,988 INFO L495 AbstractCegarLoop]: Abstraction has 367 states and 508 transitions. [2022-07-22 22:31:44,988 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 7.923076923076923) internal successors, (103), 13 states have internal predecessors, (103), 6 states have call successors, (24), 3 states have call predecessors, (24), 4 states have return successors, (22), 6 states have call predecessors, (22), 6 states have call successors, (22) [2022-07-22 22:31:44,988 INFO L276 IsEmpty]: Start isEmpty. Operand 367 states and 508 transitions. [2022-07-22 22:31:44,989 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 269 [2022-07-22 22:31:44,989 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 22:31:44,989 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 22:31:45,031 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2022-07-22 22:31:45,213 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2022-07-22 22:31:45,214 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-22 22:31:45,214 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 22:31:45,214 INFO L85 PathProgramCache]: Analyzing trace with hash -671372643, now seen corresponding path program 1 times [2022-07-22 22:31:45,214 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 22:31:45,214 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [889984819] [2022-07-22 22:31:45,214 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 22:31:45,214 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 22:31:45,270 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-07-22 22:31:45,270 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1181071686] [2022-07-22 22:31:45,270 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 22:31:45,270 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-22 22:31:45,271 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 22:31:45,288 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-22 22:31:45,289 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2022-07-22 22:31:45,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:31:45,916 INFO L263 TraceCheckSpWp]: Trace formula consists of 3383 conjuncts, 23 conjunts are in the unsatisfiable core [2022-07-22 22:31:45,921 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-22 22:31:45,939 INFO L134 CoverageAnalysis]: Checked inductivity of 444 backedges. 232 proven. 0 refuted. 0 times theorem prover too weak. 212 trivial. 0 not checked. [2022-07-22 22:31:45,940 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-22 22:31:45,940 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 22:31:45,940 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [889984819] [2022-07-22 22:31:45,940 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-07-22 22:31:45,940 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1181071686] [2022-07-22 22:31:45,940 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1181071686] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 22:31:45,940 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 22:31:45,940 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-07-22 22:31:45,941 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1632554605] [2022-07-22 22:31:45,941 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 22:31:45,941 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-22 22:31:45,941 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 22:31:45,942 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-22 22:31:45,942 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-22 22:31:45,942 INFO L87 Difference]: Start difference. First operand 367 states and 508 transitions. Second operand has 5 states, 5 states have (on average 19.4) internal successors, (97), 5 states have internal predecessors, (97), 2 states have call successors, (24), 2 states have call predecessors, (24), 2 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2022-07-22 22:31:45,977 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 22:31:45,977 INFO L93 Difference]: Finished difference Result 709 states and 999 transitions. [2022-07-22 22:31:45,977 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-22 22:31:45,978 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 19.4) internal successors, (97), 5 states have internal predecessors, (97), 2 states have call successors, (24), 2 states have call predecessors, (24), 2 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) Word has length 268 [2022-07-22 22:31:45,978 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 22:31:45,980 INFO L225 Difference]: With dead ends: 709 [2022-07-22 22:31:45,980 INFO L226 Difference]: Without dead ends: 387 [2022-07-22 22:31:45,981 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 268 GetRequests, 264 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-07-22 22:31:45,982 INFO L413 NwaCegarLoop]: 434 mSDtfsCounter, 8 mSDsluCounter, 1276 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 1710 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-22 22:31:45,982 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 1710 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-22 22:31:45,982 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 387 states. [2022-07-22 22:31:45,993 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 387 to 375. [2022-07-22 22:31:45,994 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 375 states, 248 states have (on average 1.217741935483871) internal successors, (302), 251 states have internal predecessors, (302), 99 states have call successors, (99), 24 states have call predecessors, (99), 26 states have return successors, (116), 99 states have call predecessors, (116), 97 states have call successors, (116) [2022-07-22 22:31:45,995 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 375 states to 375 states and 517 transitions. [2022-07-22 22:31:45,996 INFO L78 Accepts]: Start accepts. Automaton has 375 states and 517 transitions. Word has length 268 [2022-07-22 22:31:45,996 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 22:31:45,996 INFO L495 AbstractCegarLoop]: Abstraction has 375 states and 517 transitions. [2022-07-22 22:31:45,996 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 19.4) internal successors, (97), 5 states have internal predecessors, (97), 2 states have call successors, (24), 2 states have call predecessors, (24), 2 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2022-07-22 22:31:45,996 INFO L276 IsEmpty]: Start isEmpty. Operand 375 states and 517 transitions. [2022-07-22 22:31:45,997 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 271 [2022-07-22 22:31:45,998 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 22:31:45,998 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 22:31:46,037 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2022-07-22 22:31:46,220 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2022-07-22 22:31:46,220 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-22 22:31:46,220 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 22:31:46,220 INFO L85 PathProgramCache]: Analyzing trace with hash -1710084882, now seen corresponding path program 1 times [2022-07-22 22:31:46,221 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 22:31:46,221 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1395604734] [2022-07-22 22:31:46,221 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 22:31:46,221 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 22:31:46,275 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-07-22 22:31:46,276 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [355362396] [2022-07-22 22:31:46,276 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 22:31:46,276 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-22 22:31:46,276 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 22:31:46,277 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-22 22:31:46,278 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2022-07-22 22:31:46,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:31:46,887 INFO L263 TraceCheckSpWp]: Trace formula consists of 3382 conjuncts, 38 conjunts are in the unsatisfiable core [2022-07-22 22:31:46,891 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-22 22:31:47,077 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 11 treesize of output 5 [2022-07-22 22:31:47,088 INFO L134 CoverageAnalysis]: Checked inductivity of 444 backedges. 233 proven. 0 refuted. 0 times theorem prover too weak. 211 trivial. 0 not checked. [2022-07-22 22:31:47,088 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-22 22:31:47,088 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 22:31:47,089 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1395604734] [2022-07-22 22:31:47,089 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-07-22 22:31:47,089 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [355362396] [2022-07-22 22:31:47,089 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [355362396] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 22:31:47,089 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 22:31:47,089 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-07-22 22:31:47,089 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [14108672] [2022-07-22 22:31:47,089 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 22:31:47,090 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-07-22 22:31:47,090 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 22:31:47,090 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-07-22 22:31:47,090 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2022-07-22 22:31:47,090 INFO L87 Difference]: Start difference. First operand 375 states and 517 transitions. Second operand has 10 states, 10 states have (on average 10.3) internal successors, (103), 10 states have internal predecessors, (103), 6 states have call successors, (25), 2 states have call predecessors, (25), 3 states have return successors, (23), 6 states have call predecessors, (23), 6 states have call successors, (23) [2022-07-22 22:31:47,598 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 22:31:47,598 INFO L93 Difference]: Finished difference Result 779 states and 1109 transitions. [2022-07-22 22:31:47,598 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-07-22 22:31:47,599 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 10.3) internal successors, (103), 10 states have internal predecessors, (103), 6 states have call successors, (25), 2 states have call predecessors, (25), 3 states have return successors, (23), 6 states have call predecessors, (23), 6 states have call successors, (23) Word has length 270 [2022-07-22 22:31:47,599 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 22:31:47,601 INFO L225 Difference]: With dead ends: 779 [2022-07-22 22:31:47,601 INFO L226 Difference]: Without dead ends: 436 [2022-07-22 22:31:47,604 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 276 GetRequests, 263 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=44, Invalid=166, Unknown=0, NotChecked=0, Total=210 [2022-07-22 22:31:47,604 INFO L413 NwaCegarLoop]: 399 mSDtfsCounter, 105 mSDsluCounter, 2543 mSDsCounter, 0 mSdLazyCounter, 618 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 115 SdHoareTripleChecker+Valid, 2942 SdHoareTripleChecker+Invalid, 628 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 618 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-07-22 22:31:47,604 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [115 Valid, 2942 Invalid, 628 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 618 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-07-22 22:31:47,605 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 436 states. [2022-07-22 22:31:47,616 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 436 to 402. [2022-07-22 22:31:47,616 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 402 states, 274 states have (on average 1.218978102189781) internal successors, (334), 276 states have internal predecessors, (334), 99 states have call successors, (99), 24 states have call predecessors, (99), 27 states have return successors, (127), 101 states have call predecessors, (127), 97 states have call successors, (127) [2022-07-22 22:31:47,618 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 402 states to 402 states and 560 transitions. [2022-07-22 22:31:47,619 INFO L78 Accepts]: Start accepts. Automaton has 402 states and 560 transitions. Word has length 270 [2022-07-22 22:31:47,619 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 22:31:47,619 INFO L495 AbstractCegarLoop]: Abstraction has 402 states and 560 transitions. [2022-07-22 22:31:47,619 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 10.3) internal successors, (103), 10 states have internal predecessors, (103), 6 states have call successors, (25), 2 states have call predecessors, (25), 3 states have return successors, (23), 6 states have call predecessors, (23), 6 states have call successors, (23) [2022-07-22 22:31:47,619 INFO L276 IsEmpty]: Start isEmpty. Operand 402 states and 560 transitions. [2022-07-22 22:31:47,621 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 271 [2022-07-22 22:31:47,621 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 22:31:47,621 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2022-07-22 22:31:47,656 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Forceful destruction successful, exit code 0 [2022-07-22 22:31:47,834 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14,15 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-22 22:31:47,834 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-22 22:31:47,834 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 22:31:47,834 INFO L85 PathProgramCache]: Analyzing trace with hash 1568152296, now seen corresponding path program 1 times [2022-07-22 22:31:47,834 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 22:31:47,834 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1088947197] [2022-07-22 22:31:47,835 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 22:31:47,835 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 22:31:47,935 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-07-22 22:31:47,943 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [378372042] [2022-07-22 22:31:47,944 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 22:31:47,944 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-22 22:31:47,944 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 22:31:47,960 INFO L229 MonitoredProcess]: Starting monitored process 16 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-22 22:31:48,000 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2022-07-22 22:31:48,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:31:48,568 INFO L263 TraceCheckSpWp]: Trace formula consists of 3377 conjuncts, 3 conjunts are in the unsatisfiable core [2022-07-22 22:31:48,573 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-22 22:31:48,582 INFO L134 CoverageAnalysis]: Checked inductivity of 444 backedges. 220 proven. 0 refuted. 0 times theorem prover too weak. 224 trivial. 0 not checked. [2022-07-22 22:31:48,583 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-22 22:31:48,583 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 22:31:48,583 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1088947197] [2022-07-22 22:31:48,583 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-07-22 22:31:48,583 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [378372042] [2022-07-22 22:31:48,583 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [378372042] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 22:31:48,583 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 22:31:48,583 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-22 22:31:48,584 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1477402876] [2022-07-22 22:31:48,584 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 22:31:48,585 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-22 22:31:48,585 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 22:31:48,586 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-22 22:31:48,586 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-22 22:31:48,586 INFO L87 Difference]: Start difference. First operand 402 states and 560 transitions. Second operand has 4 states, 4 states have (on average 24.0) internal successors, (96), 4 states have internal predecessors, (96), 2 states have call successors, (24), 2 states have call predecessors, (24), 2 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2022-07-22 22:31:48,657 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 22:31:48,658 INFO L93 Difference]: Finished difference Result 760 states and 1076 transitions. [2022-07-22 22:31:48,658 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-22 22:31:48,659 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 24.0) internal successors, (96), 4 states have internal predecessors, (96), 2 states have call successors, (24), 2 states have call predecessors, (24), 2 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) Word has length 270 [2022-07-22 22:31:48,659 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 22:31:48,661 INFO L225 Difference]: With dead ends: 760 [2022-07-22 22:31:48,661 INFO L226 Difference]: Without dead ends: 394 [2022-07-22 22:31:48,663 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 270 GetRequests, 267 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-07-22 22:31:48,663 INFO L413 NwaCegarLoop]: 419 mSDtfsCounter, 2 mSDsluCounter, 827 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 1246 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-22 22:31:48,664 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 1246 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-22 22:31:48,665 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 394 states. [2022-07-22 22:31:48,677 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 394 to 386. [2022-07-22 22:31:48,678 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 386 states, 258 states have (on average 1.2015503875968991) internal successors, (310), 260 states have internal predecessors, (310), 99 states have call successors, (99), 24 states have call predecessors, (99), 27 states have return successors, (127), 101 states have call predecessors, (127), 97 states have call successors, (127) [2022-07-22 22:31:48,679 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 386 states to 386 states and 536 transitions. [2022-07-22 22:31:48,680 INFO L78 Accepts]: Start accepts. Automaton has 386 states and 536 transitions. Word has length 270 [2022-07-22 22:31:48,681 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 22:31:48,681 INFO L495 AbstractCegarLoop]: Abstraction has 386 states and 536 transitions. [2022-07-22 22:31:48,681 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 24.0) internal successors, (96), 4 states have internal predecessors, (96), 2 states have call successors, (24), 2 states have call predecessors, (24), 2 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2022-07-22 22:31:48,681 INFO L276 IsEmpty]: Start isEmpty. Operand 386 states and 536 transitions. [2022-07-22 22:31:48,683 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 271 [2022-07-22 22:31:48,683 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 22:31:48,683 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 22:31:48,709 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Forceful destruction successful, exit code 0 [2022-07-22 22:31:48,905 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2022-07-22 22:31:48,906 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-22 22:31:48,906 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 22:31:48,906 INFO L85 PathProgramCache]: Analyzing trace with hash 659173160, now seen corresponding path program 1 times [2022-07-22 22:31:48,906 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 22:31:48,906 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1229935755] [2022-07-22 22:31:48,906 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 22:31:48,906 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 22:31:48,984 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-07-22 22:31:48,984 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [50549651] [2022-07-22 22:31:48,984 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 22:31:48,984 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-22 22:31:48,985 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 22:31:48,989 INFO L229 MonitoredProcess]: Starting monitored process 17 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-22 22:31:48,991 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2022-07-22 22:31:49,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:31:49,598 INFO L263 TraceCheckSpWp]: Trace formula consists of 3367 conjuncts, 3 conjunts are in the unsatisfiable core [2022-07-22 22:31:49,602 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-22 22:31:49,615 INFO L134 CoverageAnalysis]: Checked inductivity of 444 backedges. 205 proven. 0 refuted. 0 times theorem prover too weak. 239 trivial. 0 not checked. [2022-07-22 22:31:49,615 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-22 22:31:49,616 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 22:31:49,616 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1229935755] [2022-07-22 22:31:49,616 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-07-22 22:31:49,616 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [50549651] [2022-07-22 22:31:49,616 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [50549651] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 22:31:49,616 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 22:31:49,616 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-22 22:31:49,616 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [362755767] [2022-07-22 22:31:49,616 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 22:31:49,617 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-22 22:31:49,617 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 22:31:49,617 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-22 22:31:49,617 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-22 22:31:49,618 INFO L87 Difference]: Start difference. First operand 386 states and 536 transitions. Second operand has 4 states, 4 states have (on average 23.25) internal successors, (93), 4 states have internal predecessors, (93), 2 states have call successors, (24), 2 states have call predecessors, (24), 2 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2022-07-22 22:31:49,657 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 22:31:49,657 INFO L93 Difference]: Finished difference Result 736 states and 1056 transitions. [2022-07-22 22:31:49,657 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-22 22:31:49,658 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 23.25) internal successors, (93), 4 states have internal predecessors, (93), 2 states have call successors, (24), 2 states have call predecessors, (24), 2 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) Word has length 270 [2022-07-22 22:31:49,658 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 22:31:49,660 INFO L225 Difference]: With dead ends: 736 [2022-07-22 22:31:49,660 INFO L226 Difference]: Without dead ends: 386 [2022-07-22 22:31:49,661 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 271 GetRequests, 268 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-07-22 22:31:49,662 INFO L413 NwaCegarLoop]: 423 mSDtfsCounter, 7 mSDsluCounter, 826 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 1249 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-22 22:31:49,662 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 1249 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-22 22:31:49,662 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 386 states. [2022-07-22 22:31:49,671 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 386 to 386. [2022-07-22 22:31:49,672 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 386 states, 258 states have (on average 1.197674418604651) internal successors, (309), 260 states have internal predecessors, (309), 99 states have call successors, (99), 24 states have call predecessors, (99), 27 states have return successors, (127), 101 states have call predecessors, (127), 97 states have call successors, (127) [2022-07-22 22:31:49,673 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 386 states to 386 states and 535 transitions. [2022-07-22 22:31:49,673 INFO L78 Accepts]: Start accepts. Automaton has 386 states and 535 transitions. Word has length 270 [2022-07-22 22:31:49,673 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 22:31:49,673 INFO L495 AbstractCegarLoop]: Abstraction has 386 states and 535 transitions. [2022-07-22 22:31:49,674 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 23.25) internal successors, (93), 4 states have internal predecessors, (93), 2 states have call successors, (24), 2 states have call predecessors, (24), 2 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2022-07-22 22:31:49,674 INFO L276 IsEmpty]: Start isEmpty. Operand 386 states and 535 transitions. [2022-07-22 22:31:49,675 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 277 [2022-07-22 22:31:49,675 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 22:31:49,675 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 22:31:49,698 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Forceful destruction successful, exit code 0 [2022-07-22 22:31:49,897 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2022-07-22 22:31:49,898 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-22 22:31:49,898 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 22:31:49,898 INFO L85 PathProgramCache]: Analyzing trace with hash -692185156, now seen corresponding path program 1 times [2022-07-22 22:31:49,898 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 22:31:49,898 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [690113371] [2022-07-22 22:31:49,898 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 22:31:49,898 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 22:31:49,981 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-07-22 22:31:49,981 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [424493078] [2022-07-22 22:31:49,981 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 22:31:49,982 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-22 22:31:49,982 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 22:31:49,983 INFO L229 MonitoredProcess]: Starting monitored process 18 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-22 22:31:49,984 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2022-07-22 22:31:50,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:31:50,773 INFO L263 TraceCheckSpWp]: Trace formula consists of 3397 conjuncts, 162 conjunts are in the unsatisfiable core [2022-07-22 22:31:50,781 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-22 22:31:50,788 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 [2022-07-22 22:31:51,048 INFO L356 Elim1Store]: treesize reduction 23, result has 28.1 percent of original size [2022-07-22 22:31:51,049 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 21 treesize of output 20 [2022-07-22 22:31:51,053 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-22 22:31:51,054 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 20 [2022-07-22 22:31:53,133 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-22 22:31:53,134 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 20 [2022-07-22 22:31:53,139 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-22 22:31:53,140 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 20 [2022-07-22 22:31:54,435 WARN L855 $PredicateComparison]: unable to prove that (and (exists ((v_ArrVal_2911 (Array Int Int))) (= |c_#memory_$Pointer$.offset| (store |c_old(#memory_$Pointer$.offset)| |c_aws_mul_size_checked_#in~r#1.base| v_ArrVal_2911))) (exists ((v_ArrVal_2912 (Array Int Int))) (= |c_#memory_$Pointer$.base| (store |c_old(#memory_$Pointer$.base)| |c_aws_mul_size_checked_#in~r#1.base| v_ArrVal_2912)))) is different from true [2022-07-22 22:31:56,727 WARN L855 $PredicateComparison]: unable to prove that (exists ((v_ArrVal_2915 Int) (v_ArrVal_2914 Int) (|aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| Int)) (and (= |c_#memory_$Pointer$.offset| (store |c_old(#memory_$Pointer$.offset)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| (store (select |c_old(#memory_$Pointer$.offset)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base|) |c_aws_mul_size_checked_#in~r#1.offset| v_ArrVal_2915))) (= |c_#memory_$Pointer$.base| (store |c_old(#memory_$Pointer$.base)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| (store (select |c_old(#memory_$Pointer$.base)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base|) |c_aws_mul_size_checked_#in~r#1.offset| v_ArrVal_2914))))) is different from true [2022-07-22 22:32:04,805 WARN L855 $PredicateComparison]: unable to prove that (exists ((v_ArrVal_2915 Int) (v_ArrVal_2914 Int) (|aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| Int)) (and (= |c_#memory_$Pointer$.offset| (store |c_old(#memory_$Pointer$.offset)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| (store (select |c_old(#memory_$Pointer$.offset)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base|) 0 v_ArrVal_2915))) (= |c_#memory_$Pointer$.base| (store |c_old(#memory_$Pointer$.base)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| (store (select |c_old(#memory_$Pointer$.base)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base|) 0 v_ArrVal_2914))))) is different from true [2022-07-22 22:32:05,035 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-22 22:32:05,072 INFO L356 Elim1Store]: treesize reduction 61, result has 37.1 percent of original size [2022-07-22 22:32:05,072 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 2 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 4 new quantified variables, introduced 5 case distinctions, treesize of input 46 treesize of output 98 [2022-07-22 22:32:05,081 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-22 22:32:05,120 INFO L356 Elim1Store]: treesize reduction 61, result has 37.1 percent of original size [2022-07-22 22:32:05,120 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 2 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 4 new quantified variables, introduced 5 case distinctions, treesize of input 46 treesize of output 98 [2022-07-22 22:32:05,133 INFO L356 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2022-07-22 22:32:05,134 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 [2022-07-22 22:32:05,161 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 8 treesize of output 7 [2022-07-22 22:32:05,181 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 8 treesize of output 7 [2022-07-22 22:32:05,198 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 8 treesize of output 7 [2022-07-22 22:32:05,236 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-22 22:32:05,237 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2022-07-22 22:32:05,297 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-22 22:32:05,298 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 34 [2022-07-22 22:32:05,329 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 70 treesize of output 51 [2022-07-22 22:32:05,333 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-22 22:32:05,334 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 40 treesize of output 32 [2022-07-22 22:32:05,378 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-22 22:32:05,379 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 34 [2022-07-22 22:32:05,428 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 47 treesize of output 32 [2022-07-22 22:32:05,432 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 12 treesize of output 10 [2022-07-22 22:32:14,004 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 15 treesize of output 7 [2022-07-22 22:32:14,007 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 15 treesize of output 7 [2022-07-22 22:32:14,033 INFO L134 CoverageAnalysis]: Checked inductivity of 450 backedges. 260 proven. 31 refuted. 0 times theorem prover too weak. 153 trivial. 6 not checked. [2022-07-22 22:32:14,033 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-22 22:32:16,762 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 22:32:16,762 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [690113371] [2022-07-22 22:32:16,762 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-07-22 22:32:16,762 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [424493078] [2022-07-22 22:32:16,762 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [424493078] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-22 22:32:16,762 INFO L184 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2022-07-22 22:32:16,762 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [35] total 35 [2022-07-22 22:32:16,763 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [496652188] [2022-07-22 22:32:16,763 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2022-07-22 22:32:16,763 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 35 states [2022-07-22 22:32:16,763 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 22:32:16,763 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 35 interpolants. [2022-07-22 22:32:16,764 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=119, Invalid=1205, Unknown=20, NotChecked=216, Total=1560 [2022-07-22 22:32:16,764 INFO L87 Difference]: Start difference. First operand 386 states and 535 transitions. Second operand has 35 states, 31 states have (on average 4.419354838709677) internal successors, (137), 32 states have internal predecessors, (137), 14 states have call successors, (28), 8 states have call predecessors, (28), 13 states have return successors, (26), 13 states have call predecessors, (26), 14 states have call successors, (26) [2022-07-22 22:32:41,315 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 22:32:41,316 INFO L93 Difference]: Finished difference Result 1135 states and 1765 transitions. [2022-07-22 22:32:41,316 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2022-07-22 22:32:41,316 INFO L78 Accepts]: Start accepts. Automaton has has 35 states, 31 states have (on average 4.419354838709677) internal successors, (137), 32 states have internal predecessors, (137), 14 states have call successors, (28), 8 states have call predecessors, (28), 13 states have return successors, (26), 13 states have call predecessors, (26), 14 states have call successors, (26) Word has length 276 [2022-07-22 22:32:41,316 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 22:32:41,321 INFO L225 Difference]: With dead ends: 1135 [2022-07-22 22:32:41,321 INFO L226 Difference]: Without dead ends: 790 [2022-07-22 22:32:41,324 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 457 GetRequests, 389 SyntacticMatches, 10 SemanticMatches, 58 ConstructedPredicates, 3 IntricatePredicates, 0 DeprecatedPredicates, 884 ImplicationChecksByTransitivity, 46.6s TimeCoverageRelationStatistics Valid=256, Invalid=2891, Unknown=57, NotChecked=336, Total=3540 [2022-07-22 22:32:41,324 INFO L413 NwaCegarLoop]: 513 mSDtfsCounter, 599 mSDsluCounter, 4276 mSDsCounter, 0 mSdLazyCounter, 3480 mSolverCounterSat, 646 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 674 SdHoareTripleChecker+Valid, 4789 SdHoareTripleChecker+Invalid, 10422 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 646 IncrementalHoareTripleChecker+Valid, 3480 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 6296 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2022-07-22 22:32:41,324 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [674 Valid, 4789 Invalid, 10422 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [646 Valid, 3480 Invalid, 0 Unknown, 6296 Unchecked, 2.1s Time] [2022-07-22 22:32:41,325 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 790 states. [2022-07-22 22:32:41,354 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 790 to 463. [2022-07-22 22:32:41,355 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 463 states, 319 states have (on average 1.2037617554858935) internal successors, (384), 327 states have internal predecessors, (384), 104 states have call successors, (104), 27 states have call predecessors, (104), 38 states have return successors, (198), 108 states have call predecessors, (198), 102 states have call successors, (198) [2022-07-22 22:32:41,357 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 463 states to 463 states and 686 transitions. [2022-07-22 22:32:41,357 INFO L78 Accepts]: Start accepts. Automaton has 463 states and 686 transitions. Word has length 276 [2022-07-22 22:32:41,358 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 22:32:41,358 INFO L495 AbstractCegarLoop]: Abstraction has 463 states and 686 transitions. [2022-07-22 22:32:41,359 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 35 states, 31 states have (on average 4.419354838709677) internal successors, (137), 32 states have internal predecessors, (137), 14 states have call successors, (28), 8 states have call predecessors, (28), 13 states have return successors, (26), 13 states have call predecessors, (26), 14 states have call successors, (26) [2022-07-22 22:32:41,359 INFO L276 IsEmpty]: Start isEmpty. Operand 463 states and 686 transitions. [2022-07-22 22:32:41,360 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 319 [2022-07-22 22:32:41,360 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 22:32:41,361 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2022-07-22 22:32:41,385 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Forceful destruction successful, exit code 0 [2022-07-22 22:32:41,577 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2022-07-22 22:32:41,577 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-22 22:32:41,578 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 22:32:41,578 INFO L85 PathProgramCache]: Analyzing trace with hash 2097513117, now seen corresponding path program 1 times [2022-07-22 22:32:41,578 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 22:32:41,578 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1038258840] [2022-07-22 22:32:41,578 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 22:32:41,578 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 22:32:42,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:32:42,873 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-22 22:32:42,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:32:42,881 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-07-22 22:32:42,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:32:42,887 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-07-22 22:32:42,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:32:42,900 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-07-22 22:32:42,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:32:42,908 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-22 22:32:42,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:32:42,913 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-07-22 22:32:42,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:32:42,917 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-07-22 22:32:42,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:32:42,931 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-22 22:32:42,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:32:42,937 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-22 22:32:42,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:32:42,943 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-22 22:32:42,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:32:42,958 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2022-07-22 22:32:43,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:32:43,073 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-22 22:32:43,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:32:43,090 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-22 22:32:43,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:32:43,098 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-22 22:32:43,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:32:43,113 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-22 22:32:43,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:32:43,119 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2022-07-22 22:32:43,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:32:43,197 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-22 22:32:43,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:32:43,239 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-22 22:32:43,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:32:43,245 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-22 22:32:43,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:32:43,261 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2022-07-22 22:32:43,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:32:43,296 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2022-07-22 22:32:43,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:32:43,301 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2022-07-22 22:32:43,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:32:43,331 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-22 22:32:43,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:32:43,342 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-22 22:32:43,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:32:43,349 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-22 22:32:43,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:32:43,354 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-22 22:32:43,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:32:43,359 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2022-07-22 22:32:43,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:32:43,370 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-22 22:32:43,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:32:43,377 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-22 22:32:43,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:32:43,382 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-22 22:32:43,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:32:43,387 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 224 [2022-07-22 22:32:43,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:32:43,392 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 230 [2022-07-22 22:32:43,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:32:43,397 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 241 [2022-07-22 22:32:43,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:32:43,431 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-22 22:32:43,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:32:43,442 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-22 22:32:43,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:32:43,449 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-22 22:32:43,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:32:43,454 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-22 22:32:43,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:32:43,459 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2022-07-22 22:32:43,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:32:43,471 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-22 22:32:43,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:32:43,513 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-22 22:32:43,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:32:43,517 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-22 22:32:43,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:32:43,522 INFO L134 CoverageAnalysis]: Checked inductivity of 533 backedges. 22 proven. 93 refuted. 0 times theorem prover too weak. 418 trivial. 0 not checked. [2022-07-22 22:32:43,523 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 22:32:43,523 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1038258840] [2022-07-22 22:32:43,523 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1038258840] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-22 22:32:43,523 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1558504990] [2022-07-22 22:32:43,523 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 22:32:43,523 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-22 22:32:43,523 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 22:32:43,531 INFO L229 MonitoredProcess]: Starting monitored process 19 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-22 22:32:43,533 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2022-07-22 22:32:44,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:32:44,187 INFO L263 TraceCheckSpWp]: Trace formula consists of 3460 conjuncts, 42 conjunts are in the unsatisfiable core [2022-07-22 22:32:44,192 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-22 22:32:44,267 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 21 treesize of output 9 [2022-07-22 22:32:44,498 INFO L134 CoverageAnalysis]: Checked inductivity of 533 backedges. 105 proven. 13 refuted. 0 times theorem prover too weak. 415 trivial. 0 not checked. [2022-07-22 22:32:44,499 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-22 22:32:45,306 INFO L134 CoverageAnalysis]: Checked inductivity of 533 backedges. 97 proven. 0 refuted. 0 times theorem prover too weak. 436 trivial. 0 not checked. [2022-07-22 22:32:45,306 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1558504990] provided 1 perfect and 1 imperfect interpolant sequences [2022-07-22 22:32:45,306 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-07-22 22:32:45,306 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [18, 19] total 35 [2022-07-22 22:32:45,306 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1694893170] [2022-07-22 22:32:45,306 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 22:32:45,307 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2022-07-22 22:32:45,307 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 22:32:45,307 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2022-07-22 22:32:45,307 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=80, Invalid=1110, Unknown=0, NotChecked=0, Total=1190 [2022-07-22 22:32:45,308 INFO L87 Difference]: Start difference. First operand 463 states and 686 transitions. Second operand has 15 states, 14 states have (on average 7.928571428571429) internal successors, (111), 10 states have internal predecessors, (111), 2 states have call successors, (24), 2 states have call predecessors, (24), 5 states have return successors, (25), 5 states have call predecessors, (25), 1 states have call successors, (25) [2022-07-22 22:32:45,492 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 22:32:45,492 INFO L93 Difference]: Finished difference Result 905 states and 1357 transitions. [2022-07-22 22:32:45,493 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-07-22 22:32:45,493 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 14 states have (on average 7.928571428571429) internal successors, (111), 10 states have internal predecessors, (111), 2 states have call successors, (24), 2 states have call predecessors, (24), 5 states have return successors, (25), 5 states have call predecessors, (25), 1 states have call successors, (25) Word has length 318 [2022-07-22 22:32:45,493 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 22:32:45,496 INFO L225 Difference]: With dead ends: 905 [2022-07-22 22:32:45,496 INFO L226 Difference]: Without dead ends: 491 [2022-07-22 22:32:45,498 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 734 GetRequests, 696 SyntacticMatches, 2 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 151 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=92, Invalid=1314, Unknown=0, NotChecked=0, Total=1406 [2022-07-22 22:32:45,498 INFO L413 NwaCegarLoop]: 436 mSDtfsCounter, 17 mSDsluCounter, 5592 mSDsCounter, 0 mSdLazyCounter, 149 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17 SdHoareTripleChecker+Valid, 6028 SdHoareTripleChecker+Invalid, 152 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 149 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-22 22:32:45,498 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [17 Valid, 6028 Invalid, 152 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 149 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-22 22:32:45,499 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 491 states. [2022-07-22 22:32:45,543 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 491 to 471. [2022-07-22 22:32:45,544 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 471 states, 327 states have (on average 1.198776758409786) internal successors, (392), 331 states have internal predecessors, (392), 104 states have call successors, (104), 27 states have call predecessors, (104), 38 states have return successors, (198), 112 states have call predecessors, (198), 102 states have call successors, (198) [2022-07-22 22:32:45,546 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 471 states to 471 states and 694 transitions. [2022-07-22 22:32:45,546 INFO L78 Accepts]: Start accepts. Automaton has 471 states and 694 transitions. Word has length 318 [2022-07-22 22:32:45,546 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 22:32:45,546 INFO L495 AbstractCegarLoop]: Abstraction has 471 states and 694 transitions. [2022-07-22 22:32:45,547 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 14 states have (on average 7.928571428571429) internal successors, (111), 10 states have internal predecessors, (111), 2 states have call successors, (24), 2 states have call predecessors, (24), 5 states have return successors, (25), 5 states have call predecessors, (25), 1 states have call successors, (25) [2022-07-22 22:32:45,547 INFO L276 IsEmpty]: Start isEmpty. Operand 471 states and 694 transitions. [2022-07-22 22:32:45,548 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 287 [2022-07-22 22:32:45,549 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 22:32:45,549 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 22:32:45,570 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Ended with exit code 0 [2022-07-22 22:32:45,769 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,19 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-22 22:32:45,770 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-22 22:32:45,770 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 22:32:45,770 INFO L85 PathProgramCache]: Analyzing trace with hash -1860932141, now seen corresponding path program 1 times [2022-07-22 22:32:45,770 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 22:32:45,770 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1303267506] [2022-07-22 22:32:45,770 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 22:32:45,770 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 22:32:45,847 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-07-22 22:32:45,847 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1791224942] [2022-07-22 22:32:45,848 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 22:32:45,848 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-22 22:32:45,848 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 22:32:45,849 INFO L229 MonitoredProcess]: Starting monitored process 20 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-22 22:32:45,879 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Waiting until timeout for monitored process [2022-07-22 22:32:46,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:32:46,497 INFO L263 TraceCheckSpWp]: Trace formula consists of 3421 conjuncts, 8 conjunts are in the unsatisfiable core [2022-07-22 22:32:46,501 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-22 22:32:46,544 INFO L134 CoverageAnalysis]: Checked inductivity of 464 backedges. 265 proven. 0 refuted. 0 times theorem prover too weak. 199 trivial. 0 not checked. [2022-07-22 22:32:46,544 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-22 22:32:46,544 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 22:32:46,544 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1303267506] [2022-07-22 22:32:46,544 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-07-22 22:32:46,545 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1791224942] [2022-07-22 22:32:46,545 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1791224942] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 22:32:46,545 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 22:32:46,545 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-07-22 22:32:46,545 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1018453227] [2022-07-22 22:32:46,545 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 22:32:46,545 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-22 22:32:46,546 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 22:32:46,546 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-22 22:32:46,546 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-22 22:32:46,546 INFO L87 Difference]: Start difference. First operand 471 states and 694 transitions. Second operand has 5 states, 5 states have (on average 23.8) internal successors, (119), 5 states have internal predecessors, (119), 2 states have call successors, (25), 2 states have call predecessors, (25), 2 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) [2022-07-22 22:32:46,732 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 22:32:46,732 INFO L93 Difference]: Finished difference Result 898 states and 1366 transitions. [2022-07-22 22:32:46,733 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-22 22:32:46,733 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 23.8) internal successors, (119), 5 states have internal predecessors, (119), 2 states have call successors, (25), 2 states have call predecessors, (25), 2 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) Word has length 286 [2022-07-22 22:32:46,733 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 22:32:46,735 INFO L225 Difference]: With dead ends: 898 [2022-07-22 22:32:46,735 INFO L226 Difference]: Without dead ends: 476 [2022-07-22 22:32:46,737 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 289 GetRequests, 284 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2022-07-22 22:32:46,738 INFO L413 NwaCegarLoop]: 425 mSDtfsCounter, 15 mSDsluCounter, 1171 mSDsCounter, 0 mSdLazyCounter, 134 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 1596 SdHoareTripleChecker+Invalid, 135 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 134 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-22 22:32:46,739 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [15 Valid, 1596 Invalid, 135 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 134 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-22 22:32:46,743 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 476 states. [2022-07-22 22:32:46,759 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 476 to 471. [2022-07-22 22:32:46,759 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 471 states, 327 states have (on average 1.1896024464831805) internal successors, (389), 331 states have internal predecessors, (389), 104 states have call successors, (104), 27 states have call predecessors, (104), 38 states have return successors, (187), 112 states have call predecessors, (187), 102 states have call successors, (187) [2022-07-22 22:32:46,761 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 471 states to 471 states and 680 transitions. [2022-07-22 22:32:46,761 INFO L78 Accepts]: Start accepts. Automaton has 471 states and 680 transitions. Word has length 286 [2022-07-22 22:32:46,762 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 22:32:46,762 INFO L495 AbstractCegarLoop]: Abstraction has 471 states and 680 transitions. [2022-07-22 22:32:46,762 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 23.8) internal successors, (119), 5 states have internal predecessors, (119), 2 states have call successors, (25), 2 states have call predecessors, (25), 2 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) [2022-07-22 22:32:46,762 INFO L276 IsEmpty]: Start isEmpty. Operand 471 states and 680 transitions. [2022-07-22 22:32:46,763 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 289 [2022-07-22 22:32:46,764 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 22:32:46,764 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2022-07-22 22:32:46,801 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Forceful destruction successful, exit code 0 [2022-07-22 22:32:46,978 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,20 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-22 22:32:46,979 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-22 22:32:46,979 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 22:32:46,979 INFO L85 PathProgramCache]: Analyzing trace with hash -1840960066, now seen corresponding path program 1 times [2022-07-22 22:32:46,979 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 22:32:46,979 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1684918915] [2022-07-22 22:32:46,979 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 22:32:46,979 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 22:32:47,037 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-07-22 22:32:47,037 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1109757530] [2022-07-22 22:32:47,038 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 22:32:47,038 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-22 22:32:47,038 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 22:32:47,056 INFO L229 MonitoredProcess]: Starting monitored process 21 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-22 22:32:47,057 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Waiting until timeout for monitored process [2022-07-22 22:32:47,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:32:47,718 INFO L263 TraceCheckSpWp]: Trace formula consists of 3430 conjuncts, 8 conjunts are in the unsatisfiable core [2022-07-22 22:32:47,723 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-22 22:32:47,762 INFO L134 CoverageAnalysis]: Checked inductivity of 443 backedges. 249 proven. 0 refuted. 0 times theorem prover too weak. 194 trivial. 0 not checked. [2022-07-22 22:32:47,762 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-22 22:32:47,762 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 22:32:47,762 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1684918915] [2022-07-22 22:32:47,762 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-07-22 22:32:47,762 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1109757530] [2022-07-22 22:32:47,762 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1109757530] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 22:32:47,762 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 22:32:47,762 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-07-22 22:32:47,762 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [399733731] [2022-07-22 22:32:47,762 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 22:32:47,763 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-22 22:32:47,763 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 22:32:47,763 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-22 22:32:47,763 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-22 22:32:47,763 INFO L87 Difference]: Start difference. First operand 471 states and 680 transitions. Second operand has 5 states, 5 states have (on average 25.8) internal successors, (129), 5 states have internal predecessors, (129), 2 states have call successors, (28), 2 states have call predecessors, (28), 2 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) [2022-07-22 22:32:47,938 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 22:32:47,938 INFO L93 Difference]: Finished difference Result 885 states and 1331 transitions. [2022-07-22 22:32:47,938 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-22 22:32:47,938 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 25.8) internal successors, (129), 5 states have internal predecessors, (129), 2 states have call successors, (28), 2 states have call predecessors, (28), 2 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) Word has length 288 [2022-07-22 22:32:47,939 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 22:32:47,941 INFO L225 Difference]: With dead ends: 885 [2022-07-22 22:32:47,941 INFO L226 Difference]: Without dead ends: 463 [2022-07-22 22:32:47,943 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 289 GetRequests, 284 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-07-22 22:32:47,944 INFO L413 NwaCegarLoop]: 428 mSDtfsCounter, 7 mSDsluCounter, 1175 mSDsCounter, 0 mSdLazyCounter, 119 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 1603 SdHoareTripleChecker+Invalid, 122 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 119 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-22 22:32:47,944 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 1603 Invalid, 122 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 119 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-22 22:32:47,945 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 463 states. [2022-07-22 22:32:47,958 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 463 to 460. [2022-07-22 22:32:47,959 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 460 states, 318 states have (on average 1.1855345911949686) internal successors, (377), 320 states have internal predecessors, (377), 104 states have call successors, (104), 27 states have call predecessors, (104), 36 states have return successors, (174), 112 states have call predecessors, (174), 102 states have call successors, (174) [2022-07-22 22:32:47,961 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 460 states to 460 states and 655 transitions. [2022-07-22 22:32:47,961 INFO L78 Accepts]: Start accepts. Automaton has 460 states and 655 transitions. Word has length 288 [2022-07-22 22:32:47,961 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 22:32:47,961 INFO L495 AbstractCegarLoop]: Abstraction has 460 states and 655 transitions. [2022-07-22 22:32:47,961 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 25.8) internal successors, (129), 5 states have internal predecessors, (129), 2 states have call successors, (28), 2 states have call predecessors, (28), 2 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) [2022-07-22 22:32:47,962 INFO L276 IsEmpty]: Start isEmpty. Operand 460 states and 655 transitions. [2022-07-22 22:32:47,963 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 293 [2022-07-22 22:32:47,963 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 22:32:47,963 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2022-07-22 22:32:47,987 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Ended with exit code 0 [2022-07-22 22:32:48,180 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable20 [2022-07-22 22:32:48,181 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-22 22:32:48,181 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 22:32:48,181 INFO L85 PathProgramCache]: Analyzing trace with hash -2044016266, now seen corresponding path program 1 times [2022-07-22 22:32:48,181 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 22:32:48,182 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [343404347] [2022-07-22 22:32:48,182 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 22:32:48,182 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 22:32:48,265 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-07-22 22:32:48,265 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [572131936] [2022-07-22 22:32:48,265 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 22:32:48,266 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-22 22:32:48,266 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 22:32:48,267 INFO L229 MonitoredProcess]: Starting monitored process 22 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-22 22:32:48,268 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Waiting until timeout for monitored process [2022-07-22 22:32:48,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:32:48,935 INFO L263 TraceCheckSpWp]: Trace formula consists of 3450 conjuncts, 51 conjunts are in the unsatisfiable core [2022-07-22 22:32:48,940 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-22 22:32:49,029 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 21 treesize of output 9 [2022-07-22 22:32:49,267 INFO L134 CoverageAnalysis]: Checked inductivity of 457 backedges. 262 proven. 10 refuted. 0 times theorem prover too weak. 185 trivial. 0 not checked. [2022-07-22 22:32:49,267 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-22 22:32:50,245 INFO L134 CoverageAnalysis]: Checked inductivity of 457 backedges. 9 proven. 93 refuted. 0 times theorem prover too weak. 355 trivial. 0 not checked. [2022-07-22 22:32:50,246 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 22:32:50,246 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [343404347] [2022-07-22 22:32:50,246 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-07-22 22:32:50,246 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [572131936] [2022-07-22 22:32:50,246 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [572131936] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-22 22:32:50,246 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-07-22 22:32:50,246 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [21, 18] total 32 [2022-07-22 22:32:50,246 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1176033999] [2022-07-22 22:32:50,246 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-07-22 22:32:50,246 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 32 states [2022-07-22 22:32:50,247 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 22:32:50,247 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2022-07-22 22:32:50,247 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=72, Invalid=920, Unknown=0, NotChecked=0, Total=992 [2022-07-22 22:32:50,247 INFO L87 Difference]: Start difference. First operand 460 states and 655 transitions. Second operand has 32 states, 27 states have (on average 6.555555555555555) internal successors, (177), 23 states have internal predecessors, (177), 9 states have call successors, (39), 3 states have call predecessors, (39), 10 states have return successors, (41), 13 states have call predecessors, (41), 8 states have call successors, (41) [2022-07-22 22:32:51,400 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 22:32:51,400 INFO L93 Difference]: Finished difference Result 947 states and 1353 transitions. [2022-07-22 22:32:51,400 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2022-07-22 22:32:51,401 INFO L78 Accepts]: Start accepts. Automaton has has 32 states, 27 states have (on average 6.555555555555555) internal successors, (177), 23 states have internal predecessors, (177), 9 states have call successors, (39), 3 states have call predecessors, (39), 10 states have return successors, (41), 13 states have call predecessors, (41), 8 states have call successors, (41) Word has length 292 [2022-07-22 22:32:51,401 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 22:32:51,403 INFO L225 Difference]: With dead ends: 947 [2022-07-22 22:32:51,403 INFO L226 Difference]: Without dead ends: 536 [2022-07-22 22:32:51,405 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 588 GetRequests, 551 SyntacticMatches, 1 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 63 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=101, Invalid=1305, Unknown=0, NotChecked=0, Total=1406 [2022-07-22 22:32:51,405 INFO L413 NwaCegarLoop]: 429 mSDtfsCounter, 42 mSDsluCounter, 10335 mSDsCounter, 0 mSdLazyCounter, 1581 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 48 SdHoareTripleChecker+Valid, 10764 SdHoareTripleChecker+Invalid, 1595 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 1581 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-07-22 22:32:51,405 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [48 Valid, 10764 Invalid, 1595 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 1581 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-07-22 22:32:51,406 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 536 states. [2022-07-22 22:32:51,421 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 536 to 496. [2022-07-22 22:32:51,422 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 496 states, 352 states have (on average 1.1846590909090908) internal successors, (417), 351 states have internal predecessors, (417), 105 states have call successors, (105), 27 states have call predecessors, (105), 37 states have return successors, (180), 117 states have call predecessors, (180), 103 states have call successors, (180) [2022-07-22 22:32:51,424 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 496 states to 496 states and 702 transitions. [2022-07-22 22:32:51,424 INFO L78 Accepts]: Start accepts. Automaton has 496 states and 702 transitions. Word has length 292 [2022-07-22 22:32:51,425 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 22:32:51,425 INFO L495 AbstractCegarLoop]: Abstraction has 496 states and 702 transitions. [2022-07-22 22:32:51,425 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 32 states, 27 states have (on average 6.555555555555555) internal successors, (177), 23 states have internal predecessors, (177), 9 states have call successors, (39), 3 states have call predecessors, (39), 10 states have return successors, (41), 13 states have call predecessors, (41), 8 states have call successors, (41) [2022-07-22 22:32:51,425 INFO L276 IsEmpty]: Start isEmpty. Operand 496 states and 702 transitions. [2022-07-22 22:32:51,427 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 289 [2022-07-22 22:32:51,427 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 22:32:51,427 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2022-07-22 22:32:51,451 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Forceful destruction successful, exit code 0 [2022-07-22 22:32:51,643 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable21 [2022-07-22 22:32:51,643 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-22 22:32:51,644 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 22:32:51,644 INFO L85 PathProgramCache]: Analyzing trace with hash -1694848783, now seen corresponding path program 1 times [2022-07-22 22:32:51,644 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 22:32:51,644 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [399696702] [2022-07-22 22:32:51,644 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 22:32:51,644 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 22:32:51,694 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-07-22 22:32:51,694 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1185091471] [2022-07-22 22:32:51,694 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 22:32:51,695 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-22 22:32:51,695 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 22:32:51,696 INFO L229 MonitoredProcess]: Starting monitored process 23 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-22 22:32:51,715 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Waiting until timeout for monitored process [2022-07-22 22:32:52,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:32:52,498 INFO L263 TraceCheckSpWp]: Trace formula consists of 3451 conjuncts, 99 conjunts are in the unsatisfiable core [2022-07-22 22:32:52,505 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-22 22:32:52,507 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 [2022-07-22 22:32:52,746 INFO L356 Elim1Store]: treesize reduction 23, result has 28.1 percent of original size [2022-07-22 22:32:52,746 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 23 treesize of output 22 [2022-07-22 22:32:54,588 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 [2022-07-22 22:32:54,591 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 13 treesize of output 9 [2022-07-22 22:32:59,458 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-22 22:32:59,459 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-22 22:32:59,460 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-22 22:32:59,460 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 31 [2022-07-22 22:32:59,474 INFO L356 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2022-07-22 22:32:59,475 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 12 treesize of output 14 [2022-07-22 22:32:59,538 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-22 22:32:59,539 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 23 treesize of output 22 [2022-07-22 22:32:59,728 WARN L855 $PredicateComparison]: unable to prove that (exists ((v_ArrVal_4103 (Array Int Int))) (= (store |c_old(#memory_int)| |c_aws_mul_size_checked_#in~r#1.base| v_ArrVal_4103) |c_#memory_int|)) is different from true [2022-07-22 22:33:00,223 INFO L134 CoverageAnalysis]: Checked inductivity of 467 backedges. 257 proven. 31 refuted. 3 times theorem prover too weak. 176 trivial. 0 not checked. [2022-07-22 22:33:00,224 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-22 22:33:00,602 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 22:33:00,602 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [399696702] [2022-07-22 22:33:00,602 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-07-22 22:33:00,602 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1185091471] [2022-07-22 22:33:00,602 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1185091471] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-22 22:33:00,602 INFO L184 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2022-07-22 22:33:00,603 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [30] total 30 [2022-07-22 22:33:00,603 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2019471496] [2022-07-22 22:33:00,603 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2022-07-22 22:33:00,603 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2022-07-22 22:33:00,603 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 22:33:00,603 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2022-07-22 22:33:00,604 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=101, Invalid=757, Unknown=16, NotChecked=56, Total=930 [2022-07-22 22:33:00,604 INFO L87 Difference]: Start difference. First operand 496 states and 702 transitions. Second operand has 30 states, 28 states have (on average 4.928571428571429) internal successors, (138), 25 states have internal predecessors, (138), 14 states have call successors, (29), 7 states have call predecessors, (29), 10 states have return successors, (27), 12 states have call predecessors, (27), 14 states have call successors, (27) [2022-07-22 22:33:05,041 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 22:33:05,041 INFO L93 Difference]: Finished difference Result 1260 states and 1895 transitions. [2022-07-22 22:33:05,042 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2022-07-22 22:33:05,042 INFO L78 Accepts]: Start accepts. Automaton has has 30 states, 28 states have (on average 4.928571428571429) internal successors, (138), 25 states have internal predecessors, (138), 14 states have call successors, (29), 7 states have call predecessors, (29), 10 states have return successors, (27), 12 states have call predecessors, (27), 14 states have call successors, (27) Word has length 288 [2022-07-22 22:33:05,042 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 22:33:05,046 INFO L225 Difference]: With dead ends: 1260 [2022-07-22 22:33:05,046 INFO L226 Difference]: Without dead ends: 818 [2022-07-22 22:33:05,048 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 462 GetRequests, 414 SyntacticMatches, 11 SemanticMatches, 37 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 445 ImplicationChecksByTransitivity, 9.3s TimeCoverageRelationStatistics Valid=152, Invalid=1226, Unknown=32, NotChecked=72, Total=1482 [2022-07-22 22:33:05,049 INFO L413 NwaCegarLoop]: 511 mSDtfsCounter, 385 mSDsluCounter, 3668 mSDsCounter, 0 mSdLazyCounter, 3021 mSolverCounterSat, 415 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 460 SdHoareTripleChecker+Valid, 4179 SdHoareTripleChecker+Invalid, 8599 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 415 IncrementalHoareTripleChecker+Valid, 3021 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 5163 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2022-07-22 22:33:05,049 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [460 Valid, 4179 Invalid, 8599 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [415 Valid, 3021 Invalid, 0 Unknown, 5163 Unchecked, 2.2s Time] [2022-07-22 22:33:05,050 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 818 states. [2022-07-22 22:33:05,080 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 818 to 509. [2022-07-22 22:33:05,081 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 509 states, 361 states have (on average 1.18005540166205) internal successors, (426), 361 states have internal predecessors, (426), 106 states have call successors, (106), 29 states have call predecessors, (106), 40 states have return successors, (185), 118 states have call predecessors, (185), 104 states have call successors, (185) [2022-07-22 22:33:05,084 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 509 states to 509 states and 717 transitions. [2022-07-22 22:33:05,085 INFO L78 Accepts]: Start accepts. Automaton has 509 states and 717 transitions. Word has length 288 [2022-07-22 22:33:05,085 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 22:33:05,085 INFO L495 AbstractCegarLoop]: Abstraction has 509 states and 717 transitions. [2022-07-22 22:33:05,085 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 28 states have (on average 4.928571428571429) internal successors, (138), 25 states have internal predecessors, (138), 14 states have call successors, (29), 7 states have call predecessors, (29), 10 states have return successors, (27), 12 states have call predecessors, (27), 14 states have call successors, (27) [2022-07-22 22:33:05,086 INFO L276 IsEmpty]: Start isEmpty. Operand 509 states and 717 transitions. [2022-07-22 22:33:05,091 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 287 [2022-07-22 22:33:05,092 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 22:33:05,092 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2022-07-22 22:33:05,119 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Forceful destruction successful, exit code 0 [2022-07-22 22:33:05,317 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22,23 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-22 22:33:05,318 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-22 22:33:05,318 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 22:33:05,318 INFO L85 PathProgramCache]: Analyzing trace with hash -1520028329, now seen corresponding path program 1 times [2022-07-22 22:33:05,318 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 22:33:05,318 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [626663734] [2022-07-22 22:33:05,318 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 22:33:05,318 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 22:33:05,400 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-07-22 22:33:05,400 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1490504370] [2022-07-22 22:33:05,400 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 22:33:05,400 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-22 22:33:05,401 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 22:33:05,416 INFO L229 MonitoredProcess]: Starting monitored process 24 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-22 22:33:05,462 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Waiting until timeout for monitored process [2022-07-22 22:33:06,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:33:06,234 INFO L263 TraceCheckSpWp]: Trace formula consists of 3446 conjuncts, 157 conjunts are in the unsatisfiable core [2022-07-22 22:33:06,241 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-22 22:33:06,285 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 21 treesize of output 9 [2022-07-22 22:33:08,632 WARN L855 $PredicateComparison]: unable to prove that (exists ((|aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| Int) (v_ArrVal_4354 Int) (v_ArrVal_4352 Int)) (and (= (store |c_old(#memory_$Pointer$.offset)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| (store (select |c_old(#memory_$Pointer$.offset)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base|) |c_aws_mul_size_checked_#in~r#1.offset| v_ArrVal_4354)) |c_#memory_$Pointer$.offset|) (= |c_#memory_$Pointer$.base| (store |c_old(#memory_$Pointer$.base)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| (store (select |c_old(#memory_$Pointer$.base)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base|) |c_aws_mul_size_checked_#in~r#1.offset| v_ArrVal_4352))))) is different from true [2022-07-22 22:33:10,649 WARN L855 $PredicateComparison]: unable to prove that (exists ((|aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| Int) (v_ArrVal_4354 Int) (v_ArrVal_4352 Int)) (and (= (store |c_old(#memory_$Pointer$.offset)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| (store (select |c_old(#memory_$Pointer$.offset)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base|) 0 v_ArrVal_4354)) |c_#memory_$Pointer$.offset|) (= |c_#memory_$Pointer$.base| (store |c_old(#memory_$Pointer$.base)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| (store (select |c_old(#memory_$Pointer$.base)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base|) 0 v_ArrVal_4352))))) is different from true [2022-07-22 22:33:10,701 INFO L356 Elim1Store]: treesize reduction 21, result has 47.5 percent of original size [2022-07-22 22:33:10,701 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 21 treesize of output 30 [2022-07-22 22:33:10,718 INFO L356 Elim1Store]: treesize reduction 21, result has 47.5 percent of original size [2022-07-22 22:33:10,719 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 21 treesize of output 30 [2022-07-22 22:33:13,201 WARN L855 $PredicateComparison]: unable to prove that (exists ((|aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| Int) (v_ArrVal_4358 Int) (v_ArrVal_4356 Int)) (and (= (store |c_old(#memory_$Pointer$.offset)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| (store (select |c_old(#memory_$Pointer$.offset)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base|) |c_aws_mul_size_checked_#in~r#1.offset| v_ArrVal_4358)) |c_#memory_$Pointer$.offset|) (= |c_#memory_$Pointer$.base| (store |c_old(#memory_$Pointer$.base)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| (store (select |c_old(#memory_$Pointer$.base)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base|) |c_aws_mul_size_checked_#in~r#1.offset| v_ArrVal_4356))))) is different from true [2022-07-22 22:33:41,611 WARN L233 SmtUtils]: Spent 8.88s on a formula simplification that was a NOOP. DAG size: 33 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-07-22 22:33:50,659 WARN L233 SmtUtils]: Spent 8.94s on a formula simplification that was a NOOP. DAG size: 33 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-07-22 22:34:10,760 WARN L233 SmtUtils]: Spent 19.87s on a formula simplification. DAG size of input: 34 DAG size of output: 33 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-07-22 22:34:10,781 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 41 treesize of output 33 [2022-07-22 22:34:10,787 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 32 treesize of output 24 [2022-07-22 22:34:10,904 INFO L134 CoverageAnalysis]: Checked inductivity of 457 backedges. 283 proven. 68 refuted. 15 times theorem prover too weak. 72 trivial. 19 not checked. [2022-07-22 22:34:10,905 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-22 22:34:15,606 WARN L833 $PredicateComparison]: unable to prove that (and (forall ((v_ArrVal_4378 Int) (|v_aws_mul_size_checked_aws_mul_u64_checked_~r#1.base_233| Int)) (= (select (select (store |c_#memory_$Pointer$.base| |v_aws_mul_size_checked_aws_mul_u64_checked_~r#1.base_233| (store (select |c_#memory_$Pointer$.base| |v_aws_mul_size_checked_aws_mul_u64_checked_~r#1.base_233|) 0 v_ArrVal_4378)) c_s_sift_up_~queue.base) (+ 40 c_s_sift_up_~queue.offset)) 0)) (forall ((|v_aws_mul_size_checked_aws_mul_u64_checked_~r#1.base_233| Int) (v_ArrVal_4377 Int)) (= (select (select (store |c_#memory_$Pointer$.offset| |v_aws_mul_size_checked_aws_mul_u64_checked_~r#1.base_233| (store (select |c_#memory_$Pointer$.offset| |v_aws_mul_size_checked_aws_mul_u64_checked_~r#1.base_233|) 0 v_ArrVal_4377)) c_s_sift_up_~queue.base) (+ 40 c_s_sift_up_~queue.offset)) 0))) is different from false [2022-07-22 22:34:15,607 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 22:34:15,607 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [626663734] [2022-07-22 22:34:15,607 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-07-22 22:34:15,608 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1490504370] [2022-07-22 22:34:15,608 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1490504370] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-22 22:34:15,608 INFO L184 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2022-07-22 22:34:15,608 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [39] total 39 [2022-07-22 22:34:15,608 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1283958769] [2022-07-22 22:34:15,608 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2022-07-22 22:34:15,610 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 39 states [2022-07-22 22:34:15,610 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 22:34:15,610 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 39 interpolants. [2022-07-22 22:34:15,611 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=107, Invalid=1542, Unknown=7, NotChecked=324, Total=1980 [2022-07-22 22:34:15,611 INFO L87 Difference]: Start difference. First operand 509 states and 717 transitions. Second operand has 39 states, 33 states have (on average 5.303030303030303) internal successors, (175), 36 states have internal predecessors, (175), 16 states have call successors, (33), 5 states have call predecessors, (33), 12 states have return successors, (31), 14 states have call predecessors, (31), 16 states have call successors, (31) [2022-07-22 22:34:18,727 WARN L855 $PredicateComparison]: unable to prove that (and (exists ((|aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| Int) (v_ArrVal_4354 Int) (v_ArrVal_4352 Int)) (and (= (store |c_old(#memory_$Pointer$.offset)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| (store (select |c_old(#memory_$Pointer$.offset)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base|) |c_aws_mul_size_checked_#in~r#1.offset| v_ArrVal_4354)) |c_#memory_$Pointer$.offset|) (= |c_#memory_$Pointer$.base| (store |c_old(#memory_$Pointer$.base)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| (store (select |c_old(#memory_$Pointer$.base)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base|) |c_aws_mul_size_checked_#in~r#1.offset| v_ArrVal_4352))))) (exists ((|aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| Int) (v_ArrVal_4358 Int) (v_ArrVal_4356 Int)) (and (= (store |c_old(#memory_$Pointer$.offset)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| (store (select |c_old(#memory_$Pointer$.offset)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base|) |c_aws_mul_size_checked_#in~r#1.offset| v_ArrVal_4358)) |c_#memory_$Pointer$.offset|) (= |c_#memory_$Pointer$.base| (store |c_old(#memory_$Pointer$.base)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| (store (select |c_old(#memory_$Pointer$.base)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base|) |c_aws_mul_size_checked_#in~r#1.offset| v_ArrVal_4356)))))) is different from true [2022-07-22 22:34:36,331 WARN L233 SmtUtils]: Spent 8.76s on a formula simplification that was a NOOP. DAG size: 38 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-07-22 22:34:47,039 WARN L233 SmtUtils]: Spent 8.55s on a formula simplification that was a NOOP. DAG size: 38 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-07-22 22:34:57,803 WARN L233 SmtUtils]: Spent 8.62s on a formula simplification that was a NOOP. DAG size: 38 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-07-22 22:35:13,459 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 22:35:13,459 INFO L93 Difference]: Finished difference Result 1477 states and 2238 transitions. [2022-07-22 22:35:13,460 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 55 states. [2022-07-22 22:35:13,460 INFO L78 Accepts]: Start accepts. Automaton has has 39 states, 33 states have (on average 5.303030303030303) internal successors, (175), 36 states have internal predecessors, (175), 16 states have call successors, (33), 5 states have call predecessors, (33), 12 states have return successors, (31), 14 states have call predecessors, (31), 16 states have call successors, (31) Word has length 286 [2022-07-22 22:35:13,460 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 22:35:13,467 INFO L225 Difference]: With dead ends: 1477 [2022-07-22 22:35:13,467 INFO L226 Difference]: Without dead ends: 1029 [2022-07-22 22:35:13,470 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 416 GetRequests, 331 SyntacticMatches, 8 SemanticMatches, 77 ConstructedPredicates, 5 IntricatePredicates, 0 DeprecatedPredicates, 1069 ImplicationChecksByTransitivity, 120.1s TimeCoverageRelationStatistics Valid=341, Invalid=5064, Unknown=17, NotChecked=740, Total=6162 [2022-07-22 22:35:13,471 INFO L413 NwaCegarLoop]: 543 mSDtfsCounter, 436 mSDsluCounter, 10079 mSDsCounter, 0 mSdLazyCounter, 8918 mSolverCounterSat, 257 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 502 SdHoareTripleChecker+Valid, 10622 SdHoareTripleChecker+Invalid, 16800 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 257 IncrementalHoareTripleChecker+Valid, 8918 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 7625 IncrementalHoareTripleChecker+Unchecked, 5.5s IncrementalHoareTripleChecker+Time [2022-07-22 22:35:13,471 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [502 Valid, 10622 Invalid, 16800 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [257 Valid, 8918 Invalid, 0 Unknown, 7625 Unchecked, 5.5s Time] [2022-07-22 22:35:13,475 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1029 states. [2022-07-22 22:35:13,521 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1029 to 849. [2022-07-22 22:35:13,523 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 849 states, 611 states have (on average 1.1751227495908347) internal successors, (718), 612 states have internal predecessors, (718), 178 states have call successors, (178), 34 states have call predecessors, (178), 58 states have return successors, (420), 202 states have call predecessors, (420), 176 states have call successors, (420) [2022-07-22 22:35:13,526 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 849 states to 849 states and 1316 transitions. [2022-07-22 22:35:13,527 INFO L78 Accepts]: Start accepts. Automaton has 849 states and 1316 transitions. Word has length 286 [2022-07-22 22:35:13,527 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 22:35:13,527 INFO L495 AbstractCegarLoop]: Abstraction has 849 states and 1316 transitions. [2022-07-22 22:35:13,528 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 39 states, 33 states have (on average 5.303030303030303) internal successors, (175), 36 states have internal predecessors, (175), 16 states have call successors, (33), 5 states have call predecessors, (33), 12 states have return successors, (31), 14 states have call predecessors, (31), 16 states have call successors, (31) [2022-07-22 22:35:13,528 INFO L276 IsEmpty]: Start isEmpty. Operand 849 states and 1316 transitions. [2022-07-22 22:35:13,531 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 294 [2022-07-22 22:35:13,531 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 22:35:13,531 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2022-07-22 22:35:13,565 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Forceful destruction successful, exit code 0 [2022-07-22 22:35:13,747 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23,24 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-22 22:35:13,747 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-22 22:35:13,747 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 22:35:13,748 INFO L85 PathProgramCache]: Analyzing trace with hash -1387708210, now seen corresponding path program 1 times [2022-07-22 22:35:13,748 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 22:35:13,748 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1308477359] [2022-07-22 22:35:13,748 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 22:35:13,748 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 22:35:13,800 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-07-22 22:35:13,801 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [405142580] [2022-07-22 22:35:13,801 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 22:35:13,801 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-22 22:35:13,801 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 22:35:13,816 INFO L229 MonitoredProcess]: Starting monitored process 25 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-22 22:35:13,866 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Waiting until timeout for monitored process [2022-07-22 22:35:14,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:35:14,655 INFO L263 TraceCheckSpWp]: Trace formula consists of 3464 conjuncts, 95 conjunts are in the unsatisfiable core [2022-07-22 22:35:14,661 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-22 22:35:14,664 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 [2022-07-22 22:35:14,929 INFO L356 Elim1Store]: treesize reduction 23, result has 28.1 percent of original size [2022-07-22 22:35:14,930 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 23 treesize of output 22 [2022-07-22 22:35:16,758 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 [2022-07-22 22:35:16,761 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 13 treesize of output 9 [2022-07-22 22:35:17,479 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 13 treesize of output 9 [2022-07-22 22:35:17,481 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 [2022-07-22 22:35:22,436 INFO L356 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2022-07-22 22:35:22,436 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 12 treesize of output 14 [2022-07-22 22:35:22,442 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-22 22:35:22,443 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-22 22:35:22,444 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-22 22:35:22,444 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 31 [2022-07-22 22:35:22,511 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-22 22:35:22,511 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 23 treesize of output 22 [2022-07-22 22:35:22,732 WARN L855 $PredicateComparison]: unable to prove that (exists ((v_ArrVal_4627 (Array Int Int))) (= (store |c_old(#memory_int)| |c_aws_mul_size_checked_#in~r#1.base| v_ArrVal_4627) |c_#memory_int|)) is different from true [2022-07-22 22:35:23,233 INFO L134 CoverageAnalysis]: Checked inductivity of 470 backedges. 257 proven. 34 refuted. 3 times theorem prover too weak. 176 trivial. 0 not checked. [2022-07-22 22:35:23,233 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-22 22:35:23,694 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 22:35:23,694 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1308477359] [2022-07-22 22:35:23,694 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-07-22 22:35:23,694 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [405142580] [2022-07-22 22:35:23,694 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [405142580] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-22 22:35:23,694 INFO L184 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2022-07-22 22:35:23,694 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [29] total 29 [2022-07-22 22:35:23,694 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1497602691] [2022-07-22 22:35:23,694 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2022-07-22 22:35:23,695 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2022-07-22 22:35:23,695 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 22:35:23,695 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2022-07-22 22:35:23,695 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=98, Invalid=702, Unknown=16, NotChecked=54, Total=870 [2022-07-22 22:35:23,695 INFO L87 Difference]: Start difference. First operand 849 states and 1316 transitions. Second operand has 29 states, 27 states have (on average 5.222222222222222) internal successors, (141), 25 states have internal predecessors, (141), 15 states have call successors, (30), 7 states have call predecessors, (30), 10 states have return successors, (28), 12 states have call predecessors, (28), 15 states have call successors, (28) [2022-07-22 22:35:28,640 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 22:35:28,640 INFO L93 Difference]: Finished difference Result 1738 states and 2778 transitions. [2022-07-22 22:35:28,640 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2022-07-22 22:35:28,640 INFO L78 Accepts]: Start accepts. Automaton has has 29 states, 27 states have (on average 5.222222222222222) internal successors, (141), 25 states have internal predecessors, (141), 15 states have call successors, (30), 7 states have call predecessors, (30), 10 states have return successors, (28), 12 states have call predecessors, (28), 15 states have call successors, (28) Word has length 293 [2022-07-22 22:35:28,641 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 22:35:28,647 INFO L225 Difference]: With dead ends: 1738 [2022-07-22 22:35:28,647 INFO L226 Difference]: Without dead ends: 1031 [2022-07-22 22:35:28,652 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 469 GetRequests, 420 SyntacticMatches, 13 SemanticMatches, 36 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 441 ImplicationChecksByTransitivity, 10.3s TimeCoverageRelationStatistics Valid=150, Invalid=1153, Unknown=33, NotChecked=70, Total=1406 [2022-07-22 22:35:28,652 INFO L413 NwaCegarLoop]: 477 mSDtfsCounter, 406 mSDsluCounter, 3180 mSDsCounter, 0 mSdLazyCounter, 2977 mSolverCounterSat, 424 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 481 SdHoareTripleChecker+Valid, 3657 SdHoareTripleChecker+Invalid, 7829 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 424 IncrementalHoareTripleChecker+Valid, 2977 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 4428 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2022-07-22 22:35:28,653 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [481 Valid, 3657 Invalid, 7829 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [424 Valid, 2977 Invalid, 0 Unknown, 4428 Unchecked, 2.6s Time] [2022-07-22 22:35:28,654 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1031 states. [2022-07-22 22:35:28,728 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1031 to 846. [2022-07-22 22:35:28,731 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 846 states, 609 states have (on average 1.1756978653530377) internal successors, (716), 609 states have internal predecessors, (716), 178 states have call successors, (178), 34 states have call predecessors, (178), 57 states have return successors, (417), 202 states have call predecessors, (417), 176 states have call successors, (417) [2022-07-22 22:35:28,739 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 846 states to 846 states and 1311 transitions. [2022-07-22 22:35:28,740 INFO L78 Accepts]: Start accepts. Automaton has 846 states and 1311 transitions. Word has length 293 [2022-07-22 22:35:28,740 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 22:35:28,740 INFO L495 AbstractCegarLoop]: Abstraction has 846 states and 1311 transitions. [2022-07-22 22:35:28,741 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 27 states have (on average 5.222222222222222) internal successors, (141), 25 states have internal predecessors, (141), 15 states have call successors, (30), 7 states have call predecessors, (30), 10 states have return successors, (28), 12 states have call predecessors, (28), 15 states have call successors, (28) [2022-07-22 22:35:28,741 INFO L276 IsEmpty]: Start isEmpty. Operand 846 states and 1311 transitions. [2022-07-22 22:35:28,745 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 291 [2022-07-22 22:35:28,745 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 22:35:28,745 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2022-07-22 22:35:28,779 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Forceful destruction successful, exit code 0 [2022-07-22 22:35:28,969 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 25 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable24 [2022-07-22 22:35:28,969 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-22 22:35:28,970 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 22:35:28,970 INFO L85 PathProgramCache]: Analyzing trace with hash -2140330028, now seen corresponding path program 2 times [2022-07-22 22:35:28,970 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 22:35:28,970 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1324812092] [2022-07-22 22:35:28,970 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 22:35:28,970 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 22:35:29,033 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-07-22 22:35:29,033 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [128784631] [2022-07-22 22:35:29,034 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-07-22 22:35:29,034 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-22 22:35:29,035 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 22:35:29,036 INFO L229 MonitoredProcess]: Starting monitored process 26 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-22 22:35:29,054 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Waiting until timeout for monitored process [2022-07-22 22:35:31,295 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-07-22 22:35:31,295 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-07-22 22:35:31,312 INFO L263 TraceCheckSpWp]: Trace formula consists of 3410 conjuncts, 41 conjunts are in the unsatisfiable core [2022-07-22 22:35:31,316 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-22 22:35:31,439 INFO L134 CoverageAnalysis]: Checked inductivity of 462 backedges. 280 proven. 10 refuted. 0 times theorem prover too weak. 172 trivial. 0 not checked. [2022-07-22 22:35:31,439 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-22 22:35:32,258 INFO L134 CoverageAnalysis]: Checked inductivity of 462 backedges. 52 proven. 53 refuted. 0 times theorem prover too weak. 357 trivial. 0 not checked. [2022-07-22 22:35:32,258 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 22:35:32,259 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1324812092] [2022-07-22 22:35:32,259 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-07-22 22:35:32,259 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [128784631] [2022-07-22 22:35:32,259 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [128784631] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-22 22:35:32,259 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-07-22 22:35:32,259 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 18] total 26 [2022-07-22 22:35:32,259 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1931465758] [2022-07-22 22:35:32,259 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-07-22 22:35:32,260 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-07-22 22:35:32,260 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 22:35:32,260 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-07-22 22:35:32,260 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=592, Unknown=0, NotChecked=0, Total=650 [2022-07-22 22:35:32,261 INFO L87 Difference]: Start difference. First operand 846 states and 1311 transitions. Second operand has 26 states, 23 states have (on average 7.565217391304348) internal successors, (174), 17 states have internal predecessors, (174), 7 states have call successors, (32), 3 states have call predecessors, (32), 9 states have return successors, (35), 12 states have call predecessors, (35), 6 states have call successors, (35) [2022-07-22 22:35:32,903 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 22:35:32,903 INFO L93 Difference]: Finished difference Result 1555 states and 2417 transitions. [2022-07-22 22:35:32,904 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-07-22 22:35:32,904 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 23 states have (on average 7.565217391304348) internal successors, (174), 17 states have internal predecessors, (174), 7 states have call successors, (32), 3 states have call predecessors, (32), 9 states have return successors, (35), 12 states have call predecessors, (35), 6 states have call successors, (35) Word has length 290 [2022-07-22 22:35:32,904 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 22:35:32,908 INFO L225 Difference]: With dead ends: 1555 [2022-07-22 22:35:32,909 INFO L226 Difference]: Without dead ends: 829 [2022-07-22 22:35:32,912 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 582 GetRequests, 553 SyntacticMatches, 1 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=79, Invalid=791, Unknown=0, NotChecked=0, Total=870 [2022-07-22 22:35:32,914 INFO L413 NwaCegarLoop]: 435 mSDtfsCounter, 37 mSDsluCounter, 8054 mSDsCounter, 0 mSdLazyCounter, 793 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 38 SdHoareTripleChecker+Valid, 8489 SdHoareTripleChecker+Invalid, 799 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 793 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-07-22 22:35:32,915 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [38 Valid, 8489 Invalid, 799 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 793 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-07-22 22:35:32,917 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 829 states. [2022-07-22 22:35:32,987 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 829 to 811. [2022-07-22 22:35:32,989 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 811 states, 583 states have (on average 1.169811320754717) internal successors, (682), 583 states have internal predecessors, (682), 170 states have call successors, (170), 34 states have call predecessors, (170), 56 states have return successors, (390), 193 states have call predecessors, (390), 168 states have call successors, (390) [2022-07-22 22:35:32,993 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 811 states to 811 states and 1242 transitions. [2022-07-22 22:35:32,993 INFO L78 Accepts]: Start accepts. Automaton has 811 states and 1242 transitions. Word has length 290 [2022-07-22 22:35:32,993 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 22:35:32,994 INFO L495 AbstractCegarLoop]: Abstraction has 811 states and 1242 transitions. [2022-07-22 22:35:32,994 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 23 states have (on average 7.565217391304348) internal successors, (174), 17 states have internal predecessors, (174), 7 states have call successors, (32), 3 states have call predecessors, (32), 9 states have return successors, (35), 12 states have call predecessors, (35), 6 states have call successors, (35) [2022-07-22 22:35:32,994 INFO L276 IsEmpty]: Start isEmpty. Operand 811 states and 1242 transitions. [2022-07-22 22:35:32,997 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 285 [2022-07-22 22:35:32,997 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 22:35:32,997 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2022-07-22 22:35:33,037 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Forceful destruction successful, exit code 0 [2022-07-22 22:35:33,216 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 26 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable25 [2022-07-22 22:35:33,216 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-22 22:35:33,216 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 22:35:33,216 INFO L85 PathProgramCache]: Analyzing trace with hash -1221274755, now seen corresponding path program 1 times [2022-07-22 22:35:33,216 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 22:35:33,216 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1594973498] [2022-07-22 22:35:33,216 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 22:35:33,216 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 22:35:33,272 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-07-22 22:35:33,272 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [810086877] [2022-07-22 22:35:33,272 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 22:35:33,272 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-22 22:35:33,273 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 22:35:33,281 INFO L229 MonitoredProcess]: Starting monitored process 27 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-22 22:35:33,283 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Waiting until timeout for monitored process [2022-07-22 22:35:34,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:35:34,027 INFO L263 TraceCheckSpWp]: Trace formula consists of 3441 conjuncts, 120 conjunts are in the unsatisfiable core [2022-07-22 22:35:34,031 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-22 22:35:36,254 WARN L855 $PredicateComparison]: unable to prove that (exists ((v_ArrVal_5064 Int) (v_ArrVal_5063 Int) (|aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| Int)) (and (= |c_#memory_$Pointer$.offset| (store |c_old(#memory_$Pointer$.offset)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| (store (select |c_old(#memory_$Pointer$.offset)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base|) |c_aws_mul_size_checked_#in~r#1.offset| v_ArrVal_5063))) (= |c_#memory_$Pointer$.base| (store |c_old(#memory_$Pointer$.base)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| (store (select |c_old(#memory_$Pointer$.base)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base|) |c_aws_mul_size_checked_#in~r#1.offset| v_ArrVal_5064))))) is different from true [2022-07-22 22:35:38,267 WARN L855 $PredicateComparison]: unable to prove that (exists ((v_ArrVal_5064 Int) (v_ArrVal_5063 Int) (|aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| Int)) (and (= |c_#memory_$Pointer$.base| (store |c_old(#memory_$Pointer$.base)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| (store (select |c_old(#memory_$Pointer$.base)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base|) 0 v_ArrVal_5064))) (= (store |c_old(#memory_$Pointer$.offset)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| (store (select |c_old(#memory_$Pointer$.offset)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base|) 0 v_ArrVal_5063)) |c_#memory_$Pointer$.offset|))) is different from true [2022-07-22 22:35:38,320 INFO L356 Elim1Store]: treesize reduction 21, result has 47.5 percent of original size [2022-07-22 22:35:38,320 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 33 treesize of output 42 [2022-07-22 22:35:38,334 INFO L356 Elim1Store]: treesize reduction 21, result has 47.5 percent of original size [2022-07-22 22:35:38,335 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 27 treesize of output 36 [2022-07-22 22:35:40,738 WARN L855 $PredicateComparison]: unable to prove that (exists ((|aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| Int) (v_ArrVal_5068 Int) (v_ArrVal_5066 Int)) (and (= |c_#memory_$Pointer$.offset| (store |c_old(#memory_$Pointer$.offset)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| (store (select |c_old(#memory_$Pointer$.offset)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base|) |c_aws_mul_size_checked_#in~r#1.offset| v_ArrVal_5066))) (= |c_#memory_$Pointer$.base| (store |c_old(#memory_$Pointer$.base)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| (store (select |c_old(#memory_$Pointer$.base)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base|) |c_aws_mul_size_checked_#in~r#1.offset| v_ArrVal_5068))))) is different from true