./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/aws-c-common/aws_priority_queue_init_dynamic_harness.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 5b36d44f 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_init_dynamic_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 fd704c0997d5526a33ae946f9f6b6d8e05b412ad44e87cb653981b428eeb987a --- Real Ultimate output --- This is Ultimate 0.2.1-wip.dd.seqcomp-5b36d44 [2021-11-07 10:00:31,311 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-07 10:00:31,313 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-07 10:00:31,347 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-07 10:00:31,349 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-07 10:00:31,353 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-07 10:00:31,354 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-07 10:00:31,356 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-07 10:00:31,358 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-07 10:00:31,363 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-07 10:00:31,363 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-07 10:00:31,364 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-07 10:00:31,365 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-07 10:00:31,367 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-07 10:00:31,368 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-07 10:00:31,373 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-07 10:00:31,374 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-07 10:00:31,375 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-07 10:00:31,376 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-07 10:00:31,385 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-07 10:00:31,386 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-07 10:00:31,387 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-07 10:00:31,387 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-07 10:00:31,388 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-07 10:00:31,390 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-07 10:00:31,391 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-07 10:00:31,391 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-07 10:00:31,391 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-07 10:00:31,392 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-07 10:00:31,393 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-07 10:00:31,393 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-07 10:00:31,393 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-07 10:00:31,394 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-07 10:00:31,395 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-07 10:00:31,395 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-07 10:00:31,396 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-07 10:00:31,397 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-07 10:00:31,397 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-07 10:00:31,397 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-07 10:00:31,398 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-07 10:00:31,398 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-07 10:00:31,399 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-11-07 10:00:31,417 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-07 10:00:31,419 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-07 10:00:31,419 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-07 10:00:31,419 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-07 10:00:31,420 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-07 10:00:31,420 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-07 10:00:31,420 INFO L138 SettingsManager]: * Use SBE=true [2021-11-07 10:00:31,420 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-07 10:00:31,421 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-07 10:00:31,421 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-07 10:00:31,421 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-07 10:00:31,422 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-07 10:00:31,422 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-07 10:00:31,422 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-07 10:00:31,422 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-07 10:00:31,422 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-07 10:00:31,422 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-07 10:00:31,422 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-07 10:00:31,423 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-07 10:00:31,423 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-07 10:00:31,423 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-07 10:00:31,423 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-07 10:00:31,423 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-07 10:00:31,423 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-07 10:00:31,423 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-07 10:00:31,424 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-07 10:00:31,424 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-07 10:00:31,425 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-07 10:00:31,425 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-07 10:00:31,425 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> fd704c0997d5526a33ae946f9f6b6d8e05b412ad44e87cb653981b428eeb987a [2021-11-07 10:00:31,605 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-07 10:00:31,619 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-07 10:00:31,621 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-07 10:00:31,622 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-07 10:00:31,622 INFO L275 PluginConnector]: CDTParser initialized [2021-11-07 10:00:31,623 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/aws-c-common/aws_priority_queue_init_dynamic_harness.i [2021-11-07 10:00:31,674 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c2cf1035b/98a34b93a7ae431d953ccc0cdd1f921f/FLAG0398966a6 [2021-11-07 10:00:32,218 INFO L306 CDTParser]: Found 1 translation units. [2021-11-07 10:00:32,219 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_priority_queue_init_dynamic_harness.i [2021-11-07 10:00:32,248 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c2cf1035b/98a34b93a7ae431d953ccc0cdd1f921f/FLAG0398966a6 [2021-11-07 10:00:32,413 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c2cf1035b/98a34b93a7ae431d953ccc0cdd1f921f [2021-11-07 10:00:32,416 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-07 10:00:32,418 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-07 10:00:32,420 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-07 10:00:32,420 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-07 10:00:32,423 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-07 10:00:32,423 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 10:00:32" (1/1) ... [2021-11-07 10:00:32,425 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1ee3344f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 10:00:32, skipping insertion in model container [2021-11-07 10:00:32,425 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 10:00:32" (1/1) ... [2021-11-07 10:00:32,430 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-07 10:00:32,497 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-07 10:00:32,725 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_priority_queue_init_dynamic_harness.i[4505,4518] [2021-11-07 10:00:32,731 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_priority_queue_init_dynamic_harness.i[4565,4578] [2021-11-07 10:00:32,741 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-07 10:00:32,746 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-07 10:00:33,168 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-07 10:00:33,211 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 10:00:33,212 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 10:00:33,212 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 10:00:33,212 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 10:00:33,213 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 10:00:33,222 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 10:00:33,222 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 10:00:33,223 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 10:00:33,224 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 10:00:33,463 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-07 10:00:33,464 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-07 10:00:33,464 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-07 10:00:33,465 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-07 10:00:33,466 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-07 10:00:33,466 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-07 10:00:33,467 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-07 10:00:33,467 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-07 10:00:33,467 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-07 10:00:33,468 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-07 10:00:33,586 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 10:00:33,586 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 10:00:33,634 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 10:00:33,650 INFO L203 MainTranslator]: Completed pre-run [2021-11-07 10:00:33,658 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_priority_queue_init_dynamic_harness.i[4505,4518] [2021-11-07 10:00:33,659 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_priority_queue_init_dynamic_harness.i[4565,4578] [2021-11-07 10:00:33,660 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-07 10:00:33,660 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-07 10:00:33,687 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-07 10:00:33,695 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 10:00:33,695 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 10:00:33,696 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 10:00:33,696 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 10:00:33,696 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 10:00:33,701 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 10:00:33,701 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 10:00:33,702 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 10:00:33,702 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 10:00:33,721 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-07 10:00:33,726 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-07 10:00:33,727 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-07 10:00:33,727 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-07 10:00:33,728 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-07 10:00:33,728 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-07 10:00:33,728 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-07 10:00:33,729 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-07 10:00:33,730 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-07 10:00:33,730 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-07 10:00:33,763 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 10:00:33,763 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 10:00:33,785 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 10:00:33,933 INFO L208 MainTranslator]: Completed translation [2021-11-07 10:00:33,934 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 10:00:33 WrapperNode [2021-11-07 10:00:33,934 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-07 10:00:33,935 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-07 10:00:33,935 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-07 10:00:33,935 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-07 10:00:33,940 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 10:00:33" (1/1) ... [2021-11-07 10:00:34,026 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 10:00:33" (1/1) ... [2021-11-07 10:00:34,080 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-07 10:00:34,081 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-07 10:00:34,081 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-07 10:00:34,081 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-07 10:00:34,088 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 10:00:33" (1/1) ... [2021-11-07 10:00:34,088 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 10:00:33" (1/1) ... [2021-11-07 10:00:34,096 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 10:00:33" (1/1) ... [2021-11-07 10:00:34,096 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 10:00:33" (1/1) ... [2021-11-07 10:00:34,124 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 10:00:33" (1/1) ... [2021-11-07 10:00:34,143 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 10:00:33" (1/1) ... [2021-11-07 10:00:34,148 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 10:00:33" (1/1) ... [2021-11-07 10:00:34,165 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-07 10:00:34,166 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-07 10:00:34,166 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-07 10:00:34,166 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-07 10:00:34,167 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 10:00:33" (1/1) ... [2021-11-07 10:00:34,172 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-07 10:00:34,191 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-07 10:00:34,201 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-07 10:00:34,232 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-07 10:00:34,257 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-07 10:00:34,258 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-07 10:00:34,258 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-07 10:00:34,258 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-07 10:00:34,258 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-07 10:00:34,258 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-07 10:00:34,258 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-07 10:00:34,259 INFO L130 BoogieDeclarations]: Found specification of procedure __builtin_umull_overflow [2021-11-07 10:00:34,259 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-07 10:00:34,259 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-07 10:00:34,260 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-07 10:00:34,260 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-07 10:00:42,041 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-07 10:00:42,041 INFO L299 CfgBuilder]: Removed 209 assume(true) statements. [2021-11-07 10:00:42,043 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 10:00:42 BoogieIcfgContainer [2021-11-07 10:00:42,043 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-07 10:00:42,044 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-07 10:00:42,044 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-07 10:00:42,046 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-07 10:00:42,047 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 10:00:32" (1/3) ... [2021-11-07 10:00:42,047 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@69d4a1e8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 10:00:42, skipping insertion in model container [2021-11-07 10:00:42,047 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 10:00:33" (2/3) ... [2021-11-07 10:00:42,047 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@69d4a1e8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 10:00:42, skipping insertion in model container [2021-11-07 10:00:42,048 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 10:00:42" (3/3) ... [2021-11-07 10:00:42,048 INFO L111 eAbstractionObserver]: Analyzing ICFG aws_priority_queue_init_dynamic_harness.i [2021-11-07 10:00:42,052 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-07 10:00:42,052 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 13 error locations. [2021-11-07 10:00:42,081 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-07 10:00:42,085 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-11-07 10:00:42,086 INFO L340 AbstractCegarLoop]: Starting to check reachability of 13 error locations. [2021-11-07 10:00:42,098 INFO L276 IsEmpty]: Start isEmpty. Operand has 281 states, 267 states have (on average 1.4644194756554307) internal successors, (391), 280 states have internal predecessors, (391), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 10:00:42,103 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2021-11-07 10:00:42,103 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 10:00:42,104 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 10:00:42,104 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 10 more)] === [2021-11-07 10:00:42,111 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 10:00:42,112 INFO L85 PathProgramCache]: Analyzing trace with hash -1877814829, now seen corresponding path program 1 times [2021-11-07 10:00:42,118 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 10:00:42,118 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [760404655] [2021-11-07 10:00:42,119 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 10:00:42,119 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 10:00:42,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 10:00:42,653 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 10:00:42,653 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 10:00:42,654 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [760404655] [2021-11-07 10:00:42,654 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [760404655] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 10:00:42,654 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 10:00:42,654 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-07 10:00:42,655 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [258664534] [2021-11-07 10:00:42,656 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 10:00:42,659 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-07 10:00:42,659 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 10:00:42,678 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-07 10:00:42,678 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-07 10:00:42,680 INFO L87 Difference]: Start difference. First operand has 281 states, 267 states have (on average 1.4644194756554307) internal successors, (391), 280 states have internal predecessors, (391), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 21.0) internal successors, (42), 2 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 10:00:42,709 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 10:00:42,709 INFO L93 Difference]: Finished difference Result 558 states and 777 transitions. [2021-11-07 10:00:42,710 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-07 10:00:42,711 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 21.0) internal successors, (42), 2 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 42 [2021-11-07 10:00:42,711 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 10:00:42,717 INFO L225 Difference]: With dead ends: 558 [2021-11-07 10:00:42,717 INFO L226 Difference]: Without dead ends: 274 [2021-11-07 10:00:42,720 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.04ms TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-07 10:00:42,722 INFO L933 BasicCegarLoop]: 350 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.00ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 350 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 2.15ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.00ms IncrementalHoareTripleChecker+Time [2021-11-07 10:00:42,723 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 350 Invalid, 0 Unknown, 0 Unchecked, 2.15ms Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.00ms Time] [2021-11-07 10:00:42,734 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 274 states. [2021-11-07 10:00:42,751 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 274 to 274. [2021-11-07 10:00:42,753 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 274 states, 261 states have (on average 1.3103448275862069) internal successors, (342), 273 states have internal predecessors, (342), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 10:00:42,754 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 274 states to 274 states and 342 transitions. [2021-11-07 10:00:42,755 INFO L78 Accepts]: Start accepts. Automaton has 274 states and 342 transitions. Word has length 42 [2021-11-07 10:00:42,755 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 10:00:42,755 INFO L470 AbstractCegarLoop]: Abstraction has 274 states and 342 transitions. [2021-11-07 10:00:42,755 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 21.0) internal successors, (42), 2 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 10:00:42,756 INFO L276 IsEmpty]: Start isEmpty. Operand 274 states and 342 transitions. [2021-11-07 10:00:42,757 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2021-11-07 10:00:42,757 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 10:00:42,757 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 10:00:42,757 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-07 10:00:42,757 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 10 more)] === [2021-11-07 10:00:42,758 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 10:00:42,758 INFO L85 PathProgramCache]: Analyzing trace with hash 726142253, now seen corresponding path program 1 times [2021-11-07 10:00:42,758 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 10:00:42,758 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [333808639] [2021-11-07 10:00:42,758 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 10:00:42,759 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 10:00:42,826 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-07 10:00:42,827 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [61374252] [2021-11-07 10:00:42,827 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 10:00:42,827 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-07 10:00:42,827 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-07 10:00:42,839 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-07 10:00:42,903 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-11-07 10:00:43,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 10:00:43,587 INFO L263 TraceCheckSpWp]: Trace formula consists of 2509 conjuncts, 7 conjunts are in the unsatisfiable core [2021-11-07 10:00:43,594 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 10:00:43,797 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 10:00:43,798 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-07 10:00:43,798 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 10:00:43,798 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [333808639] [2021-11-07 10:00:43,798 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-07 10:00:43,798 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [61374252] [2021-11-07 10:00:43,798 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [61374252] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 10:00:43,798 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 10:00:43,799 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-07 10:00:43,799 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [252902647] [2021-11-07 10:00:43,799 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 10:00:43,800 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-07 10:00:43,800 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 10:00:43,800 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-07 10:00:43,800 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-07 10:00:43,800 INFO L87 Difference]: Start difference. First operand 274 states and 342 transitions. Second operand has 5 states, 5 states have (on average 10.8) internal successors, (54), 5 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 10:00:44,304 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 10:00:44,304 INFO L93 Difference]: Finished difference Result 686 states and 866 transitions. [2021-11-07 10:00:44,305 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-07 10:00:44,305 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.8) internal successors, (54), 5 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 54 [2021-11-07 10:00:44,306 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 10:00:44,308 INFO L225 Difference]: With dead ends: 686 [2021-11-07 10:00:44,308 INFO L226 Difference]: Without dead ends: 513 [2021-11-07 10:00:44,309 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 51 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 108.02ms TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-11-07 10:00:44,310 INFO L933 BasicCegarLoop]: 487 mSDtfsCounter, 577 mSDsluCounter, 1120 mSDsCounter, 0 mSdLazyCounter, 82 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 323.07ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 577 SdHoareTripleChecker+Valid, 1607 SdHoareTripleChecker+Invalid, 96 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 7.10ms SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 82 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 410.47ms IncrementalHoareTripleChecker+Time [2021-11-07 10:00:44,311 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [577 Valid, 1607 Invalid, 96 Unknown, 0 Unchecked, 7.10ms Time], IncrementalHoareTripleChecker [14 Valid, 82 Invalid, 0 Unknown, 0 Unchecked, 410.47ms Time] [2021-11-07 10:00:44,312 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 513 states. [2021-11-07 10:00:44,323 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 513 to 277. [2021-11-07 10:00:44,324 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 277 states, 264 states have (on average 1.3068181818181819) internal successors, (345), 276 states have internal predecessors, (345), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 10:00:44,324 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 277 states to 277 states and 345 transitions. [2021-11-07 10:00:44,325 INFO L78 Accepts]: Start accepts. Automaton has 277 states and 345 transitions. Word has length 54 [2021-11-07 10:00:44,325 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 10:00:44,325 INFO L470 AbstractCegarLoop]: Abstraction has 277 states and 345 transitions. [2021-11-07 10:00:44,325 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.8) internal successors, (54), 5 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 10:00:44,326 INFO L276 IsEmpty]: Start isEmpty. Operand 277 states and 345 transitions. [2021-11-07 10:00:44,326 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2021-11-07 10:00:44,327 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 10:00:44,327 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 10:00:44,351 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2021-11-07 10:00:44,543 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-07 10:00:44,544 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 10 more)] === [2021-11-07 10:00:44,544 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 10:00:44,545 INFO L85 PathProgramCache]: Analyzing trace with hash 365408995, now seen corresponding path program 1 times [2021-11-07 10:00:44,545 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 10:00:44,545 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1952009290] [2021-11-07 10:00:44,545 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 10:00:44,545 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 10:00:44,625 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-07 10:00:44,627 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1471595136] [2021-11-07 10:00:44,627 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 10:00:44,627 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-07 10:00:44,627 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-07 10:00:44,628 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-07 10:00:44,630 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-11-07 10:00:45,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 10:00:45,304 INFO L263 TraceCheckSpWp]: Trace formula consists of 2498 conjuncts, 17 conjunts are in the unsatisfiable core [2021-11-07 10:00:45,308 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 10:00:45,545 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 10:00:45,545 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-07 10:00:45,546 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 10:00:45,546 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1952009290] [2021-11-07 10:00:45,546 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-07 10:00:45,546 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1471595136] [2021-11-07 10:00:45,546 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1471595136] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 10:00:45,546 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 10:00:45,546 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-11-07 10:00:45,546 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1918584026] [2021-11-07 10:00:45,546 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 10:00:45,547 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-07 10:00:45,547 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 10:00:45,547 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-07 10:00:45,547 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-11-07 10:00:45,547 INFO L87 Difference]: Start difference. First operand 277 states and 345 transitions. Second operand has 7 states, 7 states have (on average 7.714285714285714) internal successors, (54), 7 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 10:00:46,582 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 10:00:46,582 INFO L93 Difference]: Finished difference Result 545 states and 683 transitions. [2021-11-07 10:00:46,583 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-11-07 10:00:46,583 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.714285714285714) internal successors, (54), 7 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 54 [2021-11-07 10:00:46,583 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 10:00:46,585 INFO L225 Difference]: With dead ends: 545 [2021-11-07 10:00:46,585 INFO L226 Difference]: Without dead ends: 543 [2021-11-07 10:00:46,585 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 50 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 360.80ms TimeCoverageRelationStatistics Valid=53, Invalid=129, Unknown=0, NotChecked=0, Total=182 [2021-11-07 10:00:46,586 INFO L933 BasicCegarLoop]: 485 mSDtfsCounter, 650 mSDsluCounter, 1988 mSDsCounter, 0 mSdLazyCounter, 219 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 677.43ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 650 SdHoareTripleChecker+Valid, 2473 SdHoareTripleChecker+Invalid, 233 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 8.77ms SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 219 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 744.24ms IncrementalHoareTripleChecker+Time [2021-11-07 10:00:46,587 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [650 Valid, 2473 Invalid, 233 Unknown, 0 Unchecked, 8.77ms Time], IncrementalHoareTripleChecker [14 Valid, 219 Invalid, 0 Unknown, 0 Unchecked, 744.24ms Time] [2021-11-07 10:00:46,598 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 543 states. [2021-11-07 10:00:46,614 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 543 to 279. [2021-11-07 10:00:46,615 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 279 states, 266 states have (on average 1.3045112781954886) internal successors, (347), 278 states have internal predecessors, (347), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 10:00:46,616 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 279 states to 279 states and 347 transitions. [2021-11-07 10:00:46,616 INFO L78 Accepts]: Start accepts. Automaton has 279 states and 347 transitions. Word has length 54 [2021-11-07 10:00:46,622 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 10:00:46,623 INFO L470 AbstractCegarLoop]: Abstraction has 279 states and 347 transitions. [2021-11-07 10:00:46,623 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 7.714285714285714) internal successors, (54), 7 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 10:00:46,623 INFO L276 IsEmpty]: Start isEmpty. Operand 279 states and 347 transitions. [2021-11-07 10:00:46,624 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2021-11-07 10:00:46,624 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 10:00:46,625 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 10:00:46,652 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2021-11-07 10:00:46,834 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable2 [2021-11-07 10:00:46,835 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 10 more)] === [2021-11-07 10:00:46,835 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 10:00:46,835 INFO L85 PathProgramCache]: Analyzing trace with hash 365468577, now seen corresponding path program 1 times [2021-11-07 10:00:46,835 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 10:00:46,835 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1770734406] [2021-11-07 10:00:46,835 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 10:00:46,836 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 10:00:46,890 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-07 10:00:46,891 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1841351412] [2021-11-07 10:00:46,891 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 10:00:46,891 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-07 10:00:46,892 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-07 10:00:46,892 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-07 10:00:46,894 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-11-07 10:03:13,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 10:03:13,297 INFO L263 TraceCheckSpWp]: Trace formula consists of 2503 conjuncts, 9 conjunts are in the unsatisfiable core [2021-11-07 10:03:13,301 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 10:03:13,471 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 10:03:13,471 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-07 10:03:13,472 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 10:03:13,472 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1770734406] [2021-11-07 10:03:13,472 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-07 10:03:13,472 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1841351412] [2021-11-07 10:03:13,472 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1841351412] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 10:03:13,472 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 10:03:13,472 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-07 10:03:13,472 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [74934196] [2021-11-07 10:03:13,472 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 10:03:13,473 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-07 10:03:13,473 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 10:03:13,473 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-07 10:03:13,473 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 10:03:13,473 INFO L87 Difference]: Start difference. First operand 279 states and 347 transitions. Second operand has 3 states, 3 states have (on average 18.0) internal successors, (54), 3 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 10:03:13,518 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 10:03:13,519 INFO L93 Difference]: Finished difference Result 529 states and 662 transitions. [2021-11-07 10:03:13,520 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-07 10:03:13,521 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 18.0) internal successors, (54), 3 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 54 [2021-11-07 10:03:13,521 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 10:03:13,522 INFO L225 Difference]: With dead ends: 529 [2021-11-07 10:03:13,522 INFO L226 Difference]: Without dead ends: 279 [2021-11-07 10:03:13,535 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 52 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 9.75ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 10:03:13,536 INFO L933 BasicCegarLoop]: 334 mSDtfsCounter, 312 mSDsluCounter, 25 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 24.20ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 312 SdHoareTripleChecker+Valid, 359 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 1.08ms SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 26.22ms IncrementalHoareTripleChecker+Time [2021-11-07 10:03:13,536 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [312 Valid, 359 Invalid, 8 Unknown, 0 Unchecked, 1.08ms Time], IncrementalHoareTripleChecker [2 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 26.22ms Time] [2021-11-07 10:03:13,537 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 279 states. [2021-11-07 10:03:13,541 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 279 to 279. [2021-11-07 10:03:13,542 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 279 states, 266 states have (on average 1.2969924812030076) internal successors, (345), 278 states have internal predecessors, (345), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 10:03:13,542 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 279 states to 279 states and 345 transitions. [2021-11-07 10:03:13,542 INFO L78 Accepts]: Start accepts. Automaton has 279 states and 345 transitions. Word has length 54 [2021-11-07 10:03:13,543 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 10:03:13,543 INFO L470 AbstractCegarLoop]: Abstraction has 279 states and 345 transitions. [2021-11-07 10:03:13,543 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 18.0) internal successors, (54), 3 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 10:03:13,543 INFO L276 IsEmpty]: Start isEmpty. Operand 279 states and 345 transitions. [2021-11-07 10:03:13,544 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2021-11-07 10:03:13,544 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 10:03:13,544 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 10:03:13,744 WARN L435 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forcibly destroying the process [2021-11-07 10:03:13,759 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2021-11-07 10:03:13,759 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-07 10:03:13,759 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 10 more)] === [2021-11-07 10:03:13,760 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 10:03:13,760 INFO L85 PathProgramCache]: Analyzing trace with hash -1018023934, now seen corresponding path program 1 times [2021-11-07 10:03:13,760 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 10:03:13,760 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [753422989] [2021-11-07 10:03:13,760 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 10:03:13,760 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 10:03:13,824 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-07 10:03:13,825 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [370514250] [2021-11-07 10:03:13,825 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 10:03:13,825 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-07 10:03:13,825 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-07 10:03:13,826 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-07 10:03:13,856 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2021-11-07 10:07:22,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 10:07:22,883 INFO L263 TraceCheckSpWp]: Trace formula consists of 2517 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-07 10:07:22,886 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 10:07:23,123 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 10:07:23,123 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-07 10:07:23,123 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 10:07:23,124 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [753422989] [2021-11-07 10:07:23,124 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-07 10:07:23,124 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [370514250] [2021-11-07 10:07:23,124 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [370514250] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 10:07:23,124 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 10:07:23,124 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-07 10:07:23,124 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1367482357] [2021-11-07 10:07:23,124 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 10:07:23,124 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-07 10:07:23,125 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 10:07:23,125 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-07 10:07:23,125 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 10:07:23,125 INFO L87 Difference]: Start difference. First operand 279 states and 345 transitions. Second operand has 3 states, 3 states have (on average 18.666666666666668) internal successors, (56), 3 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 10:07:23,188 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 10:07:23,188 INFO L93 Difference]: Finished difference Result 533 states and 665 transitions. [2021-11-07 10:07:23,189 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-07 10:07:23,189 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 18.666666666666668) internal successors, (56), 3 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 56 [2021-11-07 10:07:23,190 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 10:07:23,190 INFO L225 Difference]: With dead ends: 533 [2021-11-07 10:07:23,191 INFO L226 Difference]: Without dead ends: 283 [2021-11-07 10:07:23,191 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 54 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 31.09ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 10:07:23,192 INFO L933 BasicCegarLoop]: 336 mSDtfsCounter, 2 mSDsluCounter, 330 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 49.78ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 666 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 1.01ms SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 54.57ms IncrementalHoareTripleChecker+Time [2021-11-07 10:07:23,192 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2 Valid, 666 Invalid, 14 Unknown, 0 Unchecked, 1.01ms Time], IncrementalHoareTripleChecker [2 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 54.57ms Time] [2021-11-07 10:07:23,193 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 283 states. [2021-11-07 10:07:23,197 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 283 to 281. [2021-11-07 10:07:23,198 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 281 states, 268 states have (on average 1.294776119402985) internal successors, (347), 280 states have internal predecessors, (347), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 10:07:23,199 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 281 states to 281 states and 347 transitions. [2021-11-07 10:07:23,199 INFO L78 Accepts]: Start accepts. Automaton has 281 states and 347 transitions. Word has length 56 [2021-11-07 10:07:23,199 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 10:07:23,199 INFO L470 AbstractCegarLoop]: Abstraction has 281 states and 347 transitions. [2021-11-07 10:07:23,199 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 18.666666666666668) internal successors, (56), 3 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 10:07:23,200 INFO L276 IsEmpty]: Start isEmpty. Operand 281 states and 347 transitions. [2021-11-07 10:07:23,200 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2021-11-07 10:07:23,200 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 10:07:23,200 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 10:07:23,424 WARN L435 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forcibly destroying the process [2021-11-07 10:07:23,459 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2021-11-07 10:07:23,460 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-07 10:07:23,460 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 10 more)] === [2021-11-07 10:07:23,460 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 10:07:23,460 INFO L85 PathProgramCache]: Analyzing trace with hash -1604623586, now seen corresponding path program 1 times [2021-11-07 10:07:23,460 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 10:07:23,460 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1873199635] [2021-11-07 10:07:23,460 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 10:07:23,461 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 10:07:23,539 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-07 10:07:23,540 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [190140912] [2021-11-07 10:07:23,540 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 10:07:23,540 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-07 10:07:23,540 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-07 10:07:23,541 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-07 10:07:23,542 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2021-11-07 10:11:17,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 10:11:18,155 INFO L263 TraceCheckSpWp]: Trace formula consists of 2531 conjuncts, 26 conjunts are in the unsatisfiable core [2021-11-07 10:11:18,158 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 10:11:18,436 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-07 10:11:18,436 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 10:11:18,733 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-07 10:11:18,733 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 10:11:18,733 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1873199635] [2021-11-07 10:11:18,734 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-07 10:11:18,734 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [190140912] [2021-11-07 10:11:18,734 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [190140912] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-07 10:11:18,734 INFO L186 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2021-11-07 10:11:18,734 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 8 [2021-11-07 10:11:18,734 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [579295298] [2021-11-07 10:11:18,734 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2021-11-07 10:11:18,734 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-07 10:11:18,734 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 10:11:18,735 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-07 10:11:18,735 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-11-07 10:11:18,735 INFO L87 Difference]: Start difference. First operand 281 states and 347 transitions. Second operand has 8 states, 8 states have (on average 8.25) internal successors, (66), 8 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 10:11:19,034 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 10:11:19,039 INFO L93 Difference]: Finished difference Result 544 states and 680 transitions. [2021-11-07 10:11:19,039 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-07 10:11:19,040 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 8.25) internal successors, (66), 8 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 60 [2021-11-07 10:11:19,040 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 10:11:19,041 INFO L225 Difference]: With dead ends: 544 [2021-11-07 10:11:19,041 INFO L226 Difference]: Without dead ends: 293 [2021-11-07 10:11:19,042 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 120 GetRequests, 112 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 218.52ms TimeCoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-11-07 10:11:19,045 INFO L933 BasicCegarLoop]: 332 mSDtfsCounter, 325 mSDsluCounter, 1345 mSDsCounter, 0 mSdLazyCounter, 46 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 187.74ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 325 SdHoareTripleChecker+Valid, 1677 SdHoareTripleChecker+Invalid, 67 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 2.80ms SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 46 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 204.45ms IncrementalHoareTripleChecker+Time [2021-11-07 10:11:19,045 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [325 Valid, 1677 Invalid, 67 Unknown, 0 Unchecked, 2.80ms Time], IncrementalHoareTripleChecker [21 Valid, 46 Invalid, 0 Unknown, 0 Unchecked, 204.45ms Time] [2021-11-07 10:11:19,046 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 293 states. [2021-11-07 10:11:19,050 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 293 to 293. [2021-11-07 10:11:19,051 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 293 states, 280 states have (on average 1.2821428571428573) internal successors, (359), 292 states have internal predecessors, (359), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 10:11:19,052 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 293 states to 293 states and 359 transitions. [2021-11-07 10:11:19,052 INFO L78 Accepts]: Start accepts. Automaton has 293 states and 359 transitions. Word has length 60 [2021-11-07 10:11:19,052 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 10:11:19,052 INFO L470 AbstractCegarLoop]: Abstraction has 293 states and 359 transitions. [2021-11-07 10:11:19,053 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 8.25) internal successors, (66), 8 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 10:11:19,053 INFO L276 IsEmpty]: Start isEmpty. Operand 293 states and 359 transitions. [2021-11-07 10:11:19,057 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2021-11-07 10:11:19,057 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 10:11:19,058 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 10:11:19,278 WARN L435 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forcibly destroying the process [2021-11-07 10:11:19,281 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2021-11-07 10:11:19,281 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-07 10:11:19,281 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 10 more)] === [2021-11-07 10:11:19,281 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 10:11:19,282 INFO L85 PathProgramCache]: Analyzing trace with hash -786237326, now seen corresponding path program 2 times [2021-11-07 10:11:19,282 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 10:11:19,282 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [115941105] [2021-11-07 10:11:19,282 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 10:11:19,282 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 10:11:19,337 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-07 10:11:19,337 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [39924313] [2021-11-07 10:11:19,337 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-11-07 10:11:19,338 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-07 10:11:19,338 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-07 10:11:19,339 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-07 10:11:19,389 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process Killed by 15