./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 173e3943 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-dev-173e394 [2021-11-06 11:28:32,654 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-06 11:28:32,655 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-06 11:28:32,721 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-06 11:28:32,722 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-06 11:28:32,723 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-06 11:28:32,726 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-06 11:28:32,731 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-06 11:28:32,732 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-06 11:28:32,733 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-06 11:28:32,734 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-06 11:28:32,736 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-06 11:28:32,736 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-06 11:28:32,740 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-06 11:28:32,742 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-06 11:28:32,744 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-06 11:28:32,745 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-06 11:28:32,747 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-06 11:28:32,750 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-06 11:28:32,752 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-06 11:28:32,755 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-06 11:28:32,756 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-06 11:28:32,757 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-06 11:28:32,758 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-06 11:28:32,764 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-06 11:28:32,765 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-06 11:28:32,765 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-06 11:28:32,766 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-06 11:28:32,767 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-06 11:28:32,768 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-06 11:28:32,768 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-06 11:28:32,769 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-06 11:28:32,770 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-06 11:28:32,771 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-06 11:28:32,772 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-06 11:28:32,773 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-06 11:28:32,773 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-06 11:28:32,773 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-06 11:28:32,774 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-06 11:28:32,774 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-06 11:28:32,775 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-06 11:28:32,776 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-11-06 11:28:32,806 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-06 11:28:32,807 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-06 11:28:32,807 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-06 11:28:32,807 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-06 11:28:32,808 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-06 11:28:32,809 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-06 11:28:32,809 INFO L138 SettingsManager]: * Use SBE=true [2021-11-06 11:28:32,809 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-06 11:28:32,809 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-06 11:28:32,809 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-06 11:28:32,810 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-06 11:28:32,810 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-06 11:28:32,811 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-06 11:28:32,811 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-06 11:28:32,811 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-06 11:28:32,811 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-06 11:28:32,811 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-06 11:28:32,812 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-06 11:28:32,812 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-06 11:28:32,812 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-06 11:28:32,812 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-06 11:28:32,812 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-06 11:28:32,813 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-06 11:28:32,813 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-06 11:28:32,813 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-06 11:28:32,813 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-06 11:28:32,813 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-06 11:28:32,814 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-06 11:28:32,815 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-06 11:28:32,815 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> fd704c0997d5526a33ae946f9f6b6d8e05b412ad44e87cb653981b428eeb987a [2021-11-06 11:28:33,059 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-06 11:28:33,087 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-06 11:28:33,089 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-06 11:28:33,090 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-06 11:28:33,091 INFO L275 PluginConnector]: CDTParser initialized [2021-11-06 11:28:33,092 INFO L432 ainManager$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 [2021-11-06 11:28:33,141 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/91fa3d175/b4af140200ec405daf6f34f669139400/FLAGdf49dff4d [2021-11-06 11:28:33,775 INFO L306 CDTParser]: Found 1 translation units. [2021-11-06 11:28:33,775 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_priority_queue_init_dynamic_harness.i [2021-11-06 11:28:33,815 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/91fa3d175/b4af140200ec405daf6f34f669139400/FLAGdf49dff4d [2021-11-06 11:28:34,172 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/91fa3d175/b4af140200ec405daf6f34f669139400 [2021-11-06 11:28:34,175 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-06 11:28:34,176 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-06 11:28:34,177 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-06 11:28:34,177 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-06 11:28:34,179 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-06 11:28:34,180 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 11:28:34" (1/1) ... [2021-11-06 11:28:34,181 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2011f2f6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:28:34, skipping insertion in model container [2021-11-06 11:28:34,181 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 11:28:34" (1/1) ... [2021-11-06 11:28:34,186 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-06 11:28:34,274 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-06 11:28:34,476 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] [2021-11-06 11:28:34,482 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] [2021-11-06 11:28:34,496 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-06 11:28:34,506 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-06 11:28:34,980 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-06 11:28:35,037 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-06 11:28:35,037 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-06 11:28:35,038 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-06 11:28:35,038 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-06 11:28:35,039 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-06 11:28:35,048 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-06 11:28:35,048 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-06 11:28:35,049 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-06 11:28:35,050 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-06 11:28:35,264 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-06 11:28:35,265 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-06 11:28:35,266 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-06 11:28:35,266 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-06 11:28:35,267 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-06 11:28:35,268 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-06 11:28:35,268 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-06 11:28:35,269 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-06 11:28:35,270 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-06 11:28:35,270 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-06 11:28:35,392 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-06 11:28:35,393 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-06 11:28:35,446 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-06 11:28:35,480 INFO L203 MainTranslator]: Completed pre-run [2021-11-06 11:28:35,503 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] [2021-11-06 11:28:35,505 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] [2021-11-06 11:28:35,507 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-06 11:28:35,508 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-06 11:28:35,533 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-06 11:28:35,552 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-06 11:28:35,553 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-06 11:28:35,553 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-06 11:28:35,553 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-06 11:28:35,554 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-06 11:28:35,594 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-06 11:28:35,595 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-06 11:28:35,596 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-06 11:28:35,597 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-06 11:28:35,663 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-06 11:28:35,665 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-06 11:28:35,665 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-06 11:28:35,666 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-06 11:28:35,667 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-06 11:28:35,667 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-06 11:28:35,667 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-06 11:28:35,668 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-06 11:28:35,668 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-06 11:28:35,668 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-06 11:28:35,709 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-06 11:28:35,709 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-06 11:28:35,736 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-06 11:28:35,880 INFO L208 MainTranslator]: Completed translation [2021-11-06 11:28:35,881 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:28:35 WrapperNode [2021-11-06 11:28:35,881 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-06 11:28:35,882 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-06 11:28:35,882 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-06 11:28:35,882 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-06 11:28:35,888 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:28:35" (1/1) ... [2021-11-06 11:28:35,980 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:28:35" (1/1) ... [2021-11-06 11:28:36,076 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-06 11:28:36,077 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-06 11:28:36,077 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-06 11:28:36,077 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-06 11:28:36,091 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:28:35" (1/1) ... [2021-11-06 11:28:36,092 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:28:35" (1/1) ... [2021-11-06 11:28:36,108 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:28:35" (1/1) ... [2021-11-06 11:28:36,109 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:28:35" (1/1) ... [2021-11-06 11:28:36,170 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:28:35" (1/1) ... [2021-11-06 11:28:36,185 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:28:35" (1/1) ... [2021-11-06 11:28:36,203 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:28:35" (1/1) ... [2021-11-06 11:28:36,220 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-06 11:28:36,221 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-06 11:28:36,222 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-06 11:28:36,222 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-06 11:28:36,223 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:28:35" (1/1) ... [2021-11-06 11:28:36,228 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-06 11:28:36,236 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-06 11:28:36,252 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) [2021-11-06 11:28:36,276 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 [2021-11-06 11:28:36,293 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-06 11:28:36,294 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-06 11:28:36,294 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-06 11:28:36,294 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-06 11:28:36,294 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-06 11:28:36,295 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-06 11:28:36,295 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-06 11:28:36,295 INFO L130 BoogieDeclarations]: Found specification of procedure __builtin_umull_overflow [2021-11-06 11:28:36,295 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-06 11:28:36,296 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-06 11:28:36,296 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-06 11:28:36,296 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-06 11:28:44,936 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-06 11:28:44,937 INFO L299 CfgBuilder]: Removed 209 assume(true) statements. [2021-11-06 11:28:44,938 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 11:28:44 BoogieIcfgContainer [2021-11-06 11:28:44,939 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-06 11:28:44,940 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-06 11:28:44,940 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-06 11:28:44,943 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-06 11:28:44,943 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.11 11:28:34" (1/3) ... [2021-11-06 11:28:44,943 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7c2340bd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 11:28:44, skipping insertion in model container [2021-11-06 11:28:44,943 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:28:35" (2/3) ... [2021-11-06 11:28:44,944 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7c2340bd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 11:28:44, skipping insertion in model container [2021-11-06 11:28:44,944 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 11:28:44" (3/3) ... [2021-11-06 11:28:44,945 INFO L111 eAbstractionObserver]: Analyzing ICFG aws_priority_queue_init_dynamic_harness.i [2021-11-06 11:28:44,949 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-06 11:28:44,949 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 13 error locations. [2021-11-06 11:28:44,982 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-06 11:28:44,986 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 [2021-11-06 11:28:44,987 INFO L340 AbstractCegarLoop]: Starting to check reachability of 13 error locations. [2021-11-06 11:28:45,001 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) [2021-11-06 11:28:45,006 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2021-11-06 11:28:45,007 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 11:28:45,007 INFO L513 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] [2021-11-06 11:28:45,008 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)] === [2021-11-06 11:28:45,012 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 11:28:45,012 INFO L85 PathProgramCache]: Analyzing trace with hash -1877814829, now seen corresponding path program 1 times [2021-11-06 11:28:45,019 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 11:28:45,019 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2051384223] [2021-11-06 11:28:45,019 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 11:28:45,020 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 11:28:45,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 11:28:45,580 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-06 11:28:45,581 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 11:28:45,581 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2051384223] [2021-11-06 11:28:45,581 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2051384223] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 11:28:45,582 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-06 11:28:45,582 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-06 11:28:45,583 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [467235293] [2021-11-06 11:28:45,587 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-06 11:28:45,587 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 11:28:45,597 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-06 11:28:45,597 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-06 11:28:45,600 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) [2021-11-06 11:28:45,636 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 11:28:45,636 INFO L93 Difference]: Finished difference Result 558 states and 777 transitions. [2021-11-06 11:28:45,636 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-06 11:28:45,638 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 [2021-11-06 11:28:45,638 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 11:28:45,645 INFO L225 Difference]: With dead ends: 558 [2021-11-06 11:28:45,646 INFO L226 Difference]: Without dead ends: 274 [2021-11-06 11:28:45,652 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-06 11:28:45,666 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 274 states. [2021-11-06 11:28:45,703 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 274 to 274. [2021-11-06 11:28:45,711 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) [2021-11-06 11:28:45,717 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 274 states to 274 states and 342 transitions. [2021-11-06 11:28:45,722 INFO L78 Accepts]: Start accepts. Automaton has 274 states and 342 transitions. Word has length 42 [2021-11-06 11:28:45,722 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 11:28:45,723 INFO L470 AbstractCegarLoop]: Abstraction has 274 states and 342 transitions. [2021-11-06 11:28:45,723 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) [2021-11-06 11:28:45,724 INFO L276 IsEmpty]: Start isEmpty. Operand 274 states and 342 transitions. [2021-11-06 11:28:45,725 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2021-11-06 11:28:45,725 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 11:28:45,726 INFO L513 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] [2021-11-06 11:28:45,726 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-06 11:28:45,727 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)] === [2021-11-06 11:28:45,728 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 11:28:45,729 INFO L85 PathProgramCache]: Analyzing trace with hash 726142253, now seen corresponding path program 1 times [2021-11-06 11:28:45,729 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 11:28:45,729 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [164526383] [2021-11-06 11:28:45,730 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 11:28:45,730 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 11:28:45,820 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-06 11:28:45,821 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1840046838] [2021-11-06 11:28:45,821 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 11:28:45,821 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-06 11:28:45,821 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-06 11:28:45,823 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) [2021-11-06 11:28:45,825 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-11-06 11:28:46,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 11:28:46,673 INFO L263 TraceCheckSpWp]: Trace formula consists of 2509 conjuncts, 7 conjunts are in the unsatisfiable core [2021-11-06 11:28:46,682 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-06 11:28:46,963 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-06 11:28:46,963 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 11:28:46,963 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [164526383] [2021-11-06 11:28:46,963 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-06 11:28:46,963 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1840046838] [2021-11-06 11:28:46,964 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1840046838] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 11:28:46,964 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-06 11:28:46,964 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-06 11:28:46,965 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1071022876] [2021-11-06 11:28:46,965 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-06 11:28:46,965 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 11:28:46,966 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-06 11:28:46,966 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-06 11:28:46,966 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) [2021-11-06 11:28:47,370 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 11:28:47,370 INFO L93 Difference]: Finished difference Result 686 states and 866 transitions. [2021-11-06 11:28:47,371 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-06 11:28:47,371 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 [2021-11-06 11:28:47,372 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 11:28:47,377 INFO L225 Difference]: With dead ends: 686 [2021-11-06 11:28:47,377 INFO L226 Difference]: Without dead ends: 513 [2021-11-06 11:28:47,380 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 51 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-11-06 11:28:47,383 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 513 states. [2021-11-06 11:28:47,393 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 513 to 277. [2021-11-06 11:28:47,393 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) [2021-11-06 11:28:47,394 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 277 states to 277 states and 345 transitions. [2021-11-06 11:28:47,394 INFO L78 Accepts]: Start accepts. Automaton has 277 states and 345 transitions. Word has length 54 [2021-11-06 11:28:47,395 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 11:28:47,395 INFO L470 AbstractCegarLoop]: Abstraction has 277 states and 345 transitions. [2021-11-06 11:28:47,395 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) [2021-11-06 11:28:47,395 INFO L276 IsEmpty]: Start isEmpty. Operand 277 states and 345 transitions. [2021-11-06 11:28:47,396 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2021-11-06 11:28:47,396 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 11:28:47,397 INFO L513 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] [2021-11-06 11:28:47,425 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2021-11-06 11:28:47,611 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 [2021-11-06 11:28:47,612 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)] === [2021-11-06 11:28:47,612 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 11:28:47,612 INFO L85 PathProgramCache]: Analyzing trace with hash 365408995, now seen corresponding path program 1 times [2021-11-06 11:28:47,612 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 11:28:47,612 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1460357956] [2021-11-06 11:28:47,612 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 11:28:47,613 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 11:28:47,684 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-06 11:28:47,685 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1565084601] [2021-11-06 11:28:47,685 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 11:28:47,685 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-06 11:28:47,685 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-06 11:28:47,686 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) [2021-11-06 11:28:47,688 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-11-06 11:28:48,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 11:28:48,456 INFO L263 TraceCheckSpWp]: Trace formula consists of 2498 conjuncts, 17 conjunts are in the unsatisfiable core [2021-11-06 11:28:48,461 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-06 11:28:48,802 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-06 11:28:48,802 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 11:28:48,802 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1460357956] [2021-11-06 11:28:48,802 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-06 11:28:48,802 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1565084601] [2021-11-06 11:28:48,802 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1565084601] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 11:28:48,803 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-06 11:28:48,803 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-11-06 11:28:48,803 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1947904046] [2021-11-06 11:28:48,803 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-06 11:28:48,803 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 11:28:48,804 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-06 11:28:48,804 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-11-06 11:28:48,804 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) [2021-11-06 11:28:49,814 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 11:28:49,815 INFO L93 Difference]: Finished difference Result 545 states and 683 transitions. [2021-11-06 11:28:49,815 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-11-06 11:28:49,815 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 [2021-11-06 11:28:49,816 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 11:28:49,818 INFO L225 Difference]: With dead ends: 545 [2021-11-06 11:28:49,818 INFO L226 Difference]: Without dead ends: 543 [2021-11-06 11:28:49,818 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 50 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=53, Invalid=129, Unknown=0, NotChecked=0, Total=182 [2021-11-06 11:28:49,819 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 543 states. [2021-11-06 11:28:49,829 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 543 to 279. [2021-11-06 11:28:49,831 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) [2021-11-06 11:28:49,831 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 279 states to 279 states and 347 transitions. [2021-11-06 11:28:49,832 INFO L78 Accepts]: Start accepts. Automaton has 279 states and 347 transitions. Word has length 54 [2021-11-06 11:28:49,833 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 11:28:49,833 INFO L470 AbstractCegarLoop]: Abstraction has 279 states and 347 transitions. [2021-11-06 11:28:49,833 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) [2021-11-06 11:28:49,833 INFO L276 IsEmpty]: Start isEmpty. Operand 279 states and 347 transitions. [2021-11-06 11:28:49,837 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2021-11-06 11:28:49,840 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 11:28:49,840 INFO L513 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] [2021-11-06 11:28:49,872 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2021-11-06 11:28:50,059 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 [2021-11-06 11:28:50,060 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)] === [2021-11-06 11:28:50,060 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 11:28:50,060 INFO L85 PathProgramCache]: Analyzing trace with hash 365468577, now seen corresponding path program 1 times [2021-11-06 11:28:50,060 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 11:28:50,061 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [578553318] [2021-11-06 11:28:50,061 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 11:28:50,061 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 11:28:50,132 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-06 11:28:50,132 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [909171703] [2021-11-06 11:28:50,133 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 11:28:50,133 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-06 11:28:50,133 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-06 11:28:50,134 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) [2021-11-06 11:28:50,136 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-11-06 11:30:47,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 11:30:48,107 INFO L263 TraceCheckSpWp]: Trace formula consists of 2503 conjuncts, 9 conjunts are in the unsatisfiable core [2021-11-06 11:30:48,112 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-06 11:30:48,312 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-06 11:30:48,313 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 11:30:48,313 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [578553318] [2021-11-06 11:30:48,313 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-06 11:30:48,313 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [909171703] [2021-11-06 11:30:48,313 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [909171703] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 11:30:48,314 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-06 11:30:48,315 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-06 11:30:48,315 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2123613618] [2021-11-06 11:30:48,315 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-06 11:30:48,316 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 11:30:48,316 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-06 11:30:48,316 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-06 11:30:48,317 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) [2021-11-06 11:30:48,357 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 11:30:48,358 INFO L93 Difference]: Finished difference Result 529 states and 662 transitions. [2021-11-06 11:30:48,359 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-06 11:30:48,359 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 [2021-11-06 11:30:48,359 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 11:30:48,360 INFO L225 Difference]: With dead ends: 529 [2021-11-06 11:30:48,360 INFO L226 Difference]: Without dead ends: 279 [2021-11-06 11:30:48,361 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 52 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-06 11:30:48,362 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 279 states. [2021-11-06 11:30:48,366 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 279 to 279. [2021-11-06 11:30:48,366 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) [2021-11-06 11:30:48,367 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 279 states to 279 states and 345 transitions. [2021-11-06 11:30:48,367 INFO L78 Accepts]: Start accepts. Automaton has 279 states and 345 transitions. Word has length 54 [2021-11-06 11:30:48,368 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 11:30:48,368 INFO L470 AbstractCegarLoop]: Abstraction has 279 states and 345 transitions. [2021-11-06 11:30:48,368 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) [2021-11-06 11:30:48,368 INFO L276 IsEmpty]: Start isEmpty. Operand 279 states and 345 transitions. [2021-11-06 11:30:48,369 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2021-11-06 11:30:48,369 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 11:30:48,369 INFO L513 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] [2021-11-06 11:30:48,532 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2021-11-06 11:30:48,575 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 [2021-11-06 11:30:48,575 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)] === [2021-11-06 11:30:48,576 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 11:30:48,576 INFO L85 PathProgramCache]: Analyzing trace with hash -1018023934, now seen corresponding path program 1 times [2021-11-06 11:30:48,576 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 11:30:48,576 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [971468509] [2021-11-06 11:30:48,576 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 11:30:48,577 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 11:30:48,652 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-06 11:30:48,653 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [948993664] [2021-11-06 11:30:48,653 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 11:30:48,653 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-06 11:30:48,653 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-06 11:30:48,654 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) [2021-11-06 11:30:48,658 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2021-11-06 11:34:16,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 11:34:16,731 INFO L263 TraceCheckSpWp]: Trace formula consists of 2517 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-06 11:34:16,735 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-06 11:34:16,961 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-06 11:34:16,962 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 11:34:16,962 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [971468509] [2021-11-06 11:34:16,962 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-06 11:34:16,962 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [948993664] [2021-11-06 11:34:16,962 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [948993664] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 11:34:16,962 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-06 11:34:16,962 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-06 11:34:16,963 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [787825966] [2021-11-06 11:34:16,963 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-06 11:34:16,963 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 11:34:16,964 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-06 11:34:16,964 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-06 11:34:16,964 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) [2021-11-06 11:34:17,013 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 11:34:17,013 INFO L93 Difference]: Finished difference Result 533 states and 665 transitions. [2021-11-06 11:34:17,014 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-06 11:34:17,014 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 [2021-11-06 11:34:17,014 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 11:34:17,016 INFO L225 Difference]: With dead ends: 533 [2021-11-06 11:34:17,016 INFO L226 Difference]: Without dead ends: 283 [2021-11-06 11:34:17,016 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 54 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-06 11:34:17,017 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 283 states. [2021-11-06 11:34:17,022 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 283 to 281. [2021-11-06 11:34:17,022 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) [2021-11-06 11:34:17,023 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 281 states to 281 states and 347 transitions. [2021-11-06 11:34:17,023 INFO L78 Accepts]: Start accepts. Automaton has 281 states and 347 transitions. Word has length 56 [2021-11-06 11:34:17,023 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 11:34:17,024 INFO L470 AbstractCegarLoop]: Abstraction has 281 states and 347 transitions. [2021-11-06 11:34:17,024 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) [2021-11-06 11:34:17,024 INFO L276 IsEmpty]: Start isEmpty. Operand 281 states and 347 transitions. [2021-11-06 11:34:17,025 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2021-11-06 11:34:17,025 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 11:34:17,025 INFO L513 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] [2021-11-06 11:34:17,238 WARN L435 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forcibly destroying the process [2021-11-06 11:34:17,256 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2021-11-06 11:34:17,257 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 [2021-11-06 11:34:17,257 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)] === [2021-11-06 11:34:17,257 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 11:34:17,257 INFO L85 PathProgramCache]: Analyzing trace with hash -1604623586, now seen corresponding path program 1 times [2021-11-06 11:34:17,257 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 11:34:17,257 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [839886638] [2021-11-06 11:34:17,258 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 11:34:17,258 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 11:34:17,318 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-06 11:34:17,319 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [647045488] [2021-11-06 11:34:17,319 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 11:34:17,319 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-06 11:34:17,319 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-06 11:34:17,320 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) [2021-11-06 11:34:17,343 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2021-11-06 11:37:31,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 11:37:31,283 INFO L263 TraceCheckSpWp]: Trace formula consists of 2531 conjuncts, 26 conjunts are in the unsatisfiable core [2021-11-06 11:37:31,287 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-06 11:37:31,628 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-06 11:37:31,629 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 11:37:31,629 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [839886638] [2021-11-06 11:37:31,629 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-06 11:37:31,630 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [647045488] [2021-11-06 11:37:31,630 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [647045488] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-06 11:37:31,630 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2021-11-06 11:37:31,630 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2021-11-06 11:37:31,630 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [275641324] [2021-11-06 11:37:31,631 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-06 11:37:31,631 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 11:37:31,631 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-06 11:37:31,632 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-06 11:37:31,632 INFO L87 Difference]: Start difference. First operand 281 states and 347 transitions. Second operand has 5 states, 5 states have (on average 12.0) internal successors, (60), 5 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 11:37:31,752 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 11:37:31,752 INFO L93 Difference]: Finished difference Result 538 states and 670 transitions. [2021-11-06 11:37:31,753 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-06 11:37:31,753 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.0) internal successors, (60), 5 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 60 [2021-11-06 11:37:31,753 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 11:37:31,754 INFO L225 Difference]: With dead ends: 538 [2021-11-06 11:37:31,754 INFO L226 Difference]: Without dead ends: 287 [2021-11-06 11:37:31,755 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 56 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-06 11:37:31,755 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 287 states. [2021-11-06 11:37:31,760 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 287 to 285. [2021-11-06 11:37:31,761 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 285 states, 272 states have (on average 1.2904411764705883) internal successors, (351), 284 states have internal predecessors, (351), 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) [2021-11-06 11:37:31,762 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 285 states to 285 states and 351 transitions. [2021-11-06 11:37:31,762 INFO L78 Accepts]: Start accepts. Automaton has 285 states and 351 transitions. Word has length 60 [2021-11-06 11:37:31,762 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 11:37:31,762 INFO L470 AbstractCegarLoop]: Abstraction has 285 states and 351 transitions. [2021-11-06 11:37:31,762 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.0) internal successors, (60), 5 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 11:37:31,762 INFO L276 IsEmpty]: Start isEmpty. Operand 285 states and 351 transitions. [2021-11-06 11:37:31,763 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2021-11-06 11:37:31,763 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 11:37:31,763 INFO L513 BasicCegarLoop]: trace histogram [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] [2021-11-06 11:37:31,963 WARN L435 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forcibly destroying the process [2021-11-06 11:37:32,023 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 137 [2021-11-06 11:37:32,024 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 [2021-11-06 11:37:32,024 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)] === [2021-11-06 11:37:32,024 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 11:37:32,024 INFO L85 PathProgramCache]: Analyzing trace with hash 796082234, now seen corresponding path program 2 times [2021-11-06 11:37:32,024 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 11:37:32,025 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [347365574] [2021-11-06 11:37:32,025 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 11:37:32,025 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 11:37:32,104 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-06 11:37:32,105 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [4029692] [2021-11-06 11:37:32,105 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-11-06 11:37:32,105 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-06 11:37:32,105 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-06 11:37:32,106 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) [2021-11-06 11:37:32,111 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