./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/aws-c-common/aws_priority_queue_init_static_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_static_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 23ef598a219073b4e1ea2c3302ab5b9fcd0bd41db1d8d7141c8967f07530c02d --- Real Ultimate output --- This is Ultimate 0.2.1-wip.dd.seqcomp-5b36d44 [2021-11-07 10:02:44,184 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-07 10:02:44,185 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-07 10:02:44,216 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-07 10:02:44,217 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-07 10:02:44,218 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-07 10:02:44,219 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-07 10:02:44,220 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-07 10:02:44,222 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-07 10:02:44,222 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-07 10:02:44,223 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-07 10:02:44,224 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-07 10:02:44,224 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-07 10:02:44,225 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-07 10:02:44,226 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-07 10:02:44,227 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-07 10:02:44,228 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-07 10:02:44,228 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-07 10:02:44,230 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-07 10:02:44,231 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-07 10:02:44,238 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-07 10:02:44,240 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-07 10:02:44,241 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-07 10:02:44,242 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-07 10:02:44,245 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-07 10:02:44,246 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-07 10:02:44,246 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-07 10:02:44,247 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-07 10:02:44,247 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-07 10:02:44,248 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-07 10:02:44,249 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-07 10:02:44,249 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-07 10:02:44,250 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-07 10:02:44,251 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-07 10:02:44,259 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-07 10:02:44,259 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-07 10:02:44,260 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-07 10:02:44,260 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-07 10:02:44,260 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-07 10:02:44,261 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-07 10:02:44,262 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-07 10:02:44,271 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-11-07 10:02:44,306 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-07 10:02:44,306 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-07 10:02:44,306 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-07 10:02:44,306 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-07 10:02:44,307 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-07 10:02:44,316 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-07 10:02:44,316 INFO L138 SettingsManager]: * Use SBE=true [2021-11-07 10:02:44,316 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-07 10:02:44,317 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-07 10:02:44,317 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-07 10:02:44,317 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-07 10:02:44,317 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-07 10:02:44,317 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-07 10:02:44,317 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-07 10:02:44,317 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-07 10:02:44,318 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-07 10:02:44,318 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-07 10:02:44,318 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-07 10:02:44,318 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-07 10:02:44,318 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-07 10:02:44,319 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-07 10:02:44,319 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-07 10:02:44,319 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-07 10:02:44,319 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-07 10:02:44,319 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-07 10:02:44,319 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-07 10:02:44,319 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-07 10:02:44,320 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-07 10:02:44,320 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-07 10:02:44,320 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 23ef598a219073b4e1ea2c3302ab5b9fcd0bd41db1d8d7141c8967f07530c02d [2021-11-07 10:02:44,562 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-07 10:02:44,590 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-07 10:02:44,593 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-07 10:02:44,594 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-07 10:02:44,595 INFO L275 PluginConnector]: CDTParser initialized [2021-11-07 10:02:44,597 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/aws-c-common/aws_priority_queue_init_static_harness.i [2021-11-07 10:02:44,680 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2181c0337/1e86469ff71347b5b576533fe08baa15/FLAG378c9b87b [2021-11-07 10:02:45,330 INFO L306 CDTParser]: Found 1 translation units. [2021-11-07 10:02:45,331 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_priority_queue_init_static_harness.i [2021-11-07 10:02:45,367 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2181c0337/1e86469ff71347b5b576533fe08baa15/FLAG378c9b87b [2021-11-07 10:02:45,691 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2181c0337/1e86469ff71347b5b576533fe08baa15 [2021-11-07 10:02:45,693 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-07 10:02:45,694 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-07 10:02:45,696 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-07 10:02:45,696 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-07 10:02:45,699 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-07 10:02:45,700 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 10:02:45" (1/1) ... [2021-11-07 10:02:45,701 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@358ffa6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 10:02:45, skipping insertion in model container [2021-11-07 10:02:45,701 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 10:02:45" (1/1) ... [2021-11-07 10:02:45,707 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-07 10:02:45,775 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-07 10:02:46,064 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_static_harness.i[4504,4517] [2021-11-07 10:02:46,075 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_static_harness.i[4564,4577] [2021-11-07 10:02:46,099 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-07 10:02:46,106 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-07 10:02:46,722 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-07 10:02:46,784 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 10:02:46,785 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 10:02:46,785 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 10:02:46,786 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 10:02:46,787 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 10:02:46,805 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 10:02:46,805 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 10:02:46,807 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 10:02:46,819 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 10:02:47,082 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-07 10:02:47,083 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-07 10:02:47,084 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-07 10:02:47,085 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-07 10:02:47,086 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-07 10:02:47,087 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-07 10:02:47,087 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-07 10:02:47,088 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-07 10:02:47,088 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-07 10:02:47,089 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-07 10:02:47,188 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 10:02:47,189 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 10:02:47,241 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 10:02:47,276 INFO L203 MainTranslator]: Completed pre-run [2021-11-07 10:02:47,287 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_static_harness.i[4504,4517] [2021-11-07 10:02:47,287 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_static_harness.i[4564,4577] [2021-11-07 10:02:47,289 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-07 10:02:47,290 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-07 10:02:47,312 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-07 10:02:47,322 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 10:02:47,323 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 10:02:47,323 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 10:02:47,323 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 10:02:47,324 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 10:02:47,328 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 10:02:47,329 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 10:02:47,330 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 10:02:47,330 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 10:02:47,354 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-07 10:02:47,355 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-07 10:02:47,356 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-07 10:02:47,356 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-07 10:02:47,357 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-07 10:02:47,357 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-07 10:02:47,358 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-07 10:02:47,358 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-07 10:02:47,358 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-07 10:02:47,359 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-07 10:02:47,380 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 10:02:47,381 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 10:02:47,396 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 10:02:47,615 INFO L208 MainTranslator]: Completed translation [2021-11-07 10:02:47,616 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 10:02:47 WrapperNode [2021-11-07 10:02:47,616 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-07 10:02:47,617 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-07 10:02:47,617 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-07 10:02:47,617 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-07 10:02:47,624 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 10:02:47" (1/1) ... [2021-11-07 10:02:47,725 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 10:02:47" (1/1) ... [2021-11-07 10:02:47,832 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-07 10:02:47,833 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-07 10:02:47,834 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-07 10:02:47,834 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-07 10:02:47,841 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 10:02:47" (1/1) ... [2021-11-07 10:02:47,842 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 10:02:47" (1/1) ... [2021-11-07 10:02:47,850 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 10:02:47" (1/1) ... [2021-11-07 10:02:47,851 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 10:02:47" (1/1) ... [2021-11-07 10:02:47,905 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 10:02:47" (1/1) ... [2021-11-07 10:02:47,914 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 10:02:47" (1/1) ... [2021-11-07 10:02:47,923 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 10:02:47" (1/1) ... [2021-11-07 10:02:47,936 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-07 10:02:47,937 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-07 10:02:47,937 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-07 10:02:47,937 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-07 10:02:47,938 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 10:02:47" (1/1) ... [2021-11-07 10:02:47,945 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-07 10:02:48,003 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-07 10:02:48,035 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 10:02:48,074 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 10:02:48,103 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-07 10:02:48,104 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-07 10:02:48,104 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-07 10:02:48,105 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-07 10:02:48,105 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-07 10:02:48,105 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-07 10:02:48,105 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-07 10:02:48,106 INFO L130 BoogieDeclarations]: Found specification of procedure __builtin_umull_overflow [2021-11-07 10:02:48,106 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-07 10:02:48,106 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-07 10:02:48,107 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-07 10:02:48,107 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-07 10:02:57,075 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-07 10:02:57,075 INFO L299 CfgBuilder]: Removed 165 assume(true) statements. [2021-11-07 10:02:57,077 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 10:02:57 BoogieIcfgContainer [2021-11-07 10:02:57,077 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-07 10:02:57,079 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-07 10:02:57,079 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-07 10:02:57,082 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-07 10:02:57,083 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 10:02:45" (1/3) ... [2021-11-07 10:02:57,083 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@738b68e4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 10:02:57, skipping insertion in model container [2021-11-07 10:02:57,084 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 10:02:47" (2/3) ... [2021-11-07 10:02:57,084 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@738b68e4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 10:02:57, skipping insertion in model container [2021-11-07 10:02:57,084 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 10:02:57" (3/3) ... [2021-11-07 10:02:57,085 INFO L111 eAbstractionObserver]: Analyzing ICFG aws_priority_queue_init_static_harness.i [2021-11-07 10:02:57,090 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-07 10:02:57,090 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 9 error locations. [2021-11-07 10:02:57,141 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-07 10:02:57,151 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 10:02:57,151 INFO L340 AbstractCegarLoop]: Starting to check reachability of 9 error locations. [2021-11-07 10:02:57,178 INFO L276 IsEmpty]: Start isEmpty. Operand has 205 states, 195 states have (on average 1.441025641025641) internal successors, (281), 204 states have internal predecessors, (281), 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 10:02:57,184 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2021-11-07 10:02:57,184 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 10:02:57,185 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] [2021-11-07 10:02:57,186 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 6 more)] === [2021-11-07 10:02:57,190 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 10:02:57,190 INFO L85 PathProgramCache]: Analyzing trace with hash -1473699063, now seen corresponding path program 1 times [2021-11-07 10:02:57,198 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 10:02:57,199 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2015214514] [2021-11-07 10:02:57,199 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 10:02:57,200 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 10:02:57,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 10:02:57,724 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 10:02:57,725 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 10:02:57,725 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2015214514] [2021-11-07 10:02:57,726 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2015214514] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 10:02:57,726 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 10:02:57,726 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-07 10:02:57,728 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1541787654] [2021-11-07 10:02:57,729 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 10:02:57,733 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-07 10:02:57,733 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 10:02:57,757 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-07 10:02:57,758 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-07 10:02:57,762 INFO L87 Difference]: Start difference. First operand has 205 states, 195 states have (on average 1.441025641025641) internal successors, (281), 204 states have internal predecessors, (281), 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 21.5) internal successors, (43), 2 states have internal predecessors, (43), 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 10:02:57,799 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 10:02:57,800 INFO L93 Difference]: Finished difference Result 407 states and 558 transitions. [2021-11-07 10:02:57,801 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-07 10:02:57,803 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 21.5) internal successors, (43), 2 states have internal predecessors, (43), 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 43 [2021-11-07 10:02:57,803 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 10:02:57,812 INFO L225 Difference]: With dead ends: 407 [2021-11-07 10:02:57,812 INFO L226 Difference]: Without dead ends: 199 [2021-11-07 10:02:57,818 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.05ms TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-07 10:02:57,825 INFO L933 BasicCegarLoop]: 252 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, 252 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 2.45ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.00ms IncrementalHoareTripleChecker+Time [2021-11-07 10:02:57,828 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 252 Invalid, 0 Unknown, 0 Unchecked, 2.45ms Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.00ms Time] [2021-11-07 10:02:57,847 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 199 states. [2021-11-07 10:02:57,888 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 199 to 199. [2021-11-07 10:02:57,891 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 199 states, 190 states have (on average 1.2894736842105263) internal successors, (245), 198 states have internal predecessors, (245), 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 10:02:57,899 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 199 states to 199 states and 245 transitions. [2021-11-07 10:02:57,901 INFO L78 Accepts]: Start accepts. Automaton has 199 states and 245 transitions. Word has length 43 [2021-11-07 10:02:57,902 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 10:02:57,903 INFO L470 AbstractCegarLoop]: Abstraction has 199 states and 245 transitions. [2021-11-07 10:02:57,907 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 21.5) internal successors, (43), 2 states have internal predecessors, (43), 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 10:02:57,908 INFO L276 IsEmpty]: Start isEmpty. Operand 199 states and 245 transitions. [2021-11-07 10:02:57,910 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2021-11-07 10:02:57,910 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 10:02:57,910 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] [2021-11-07 10:02:57,911 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-07 10:02:57,911 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 6 more)] === [2021-11-07 10:02:57,912 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 10:02:57,913 INFO L85 PathProgramCache]: Analyzing trace with hash 1036054349, now seen corresponding path program 1 times [2021-11-07 10:02:57,914 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 10:02:57,914 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [542159395] [2021-11-07 10:02:57,914 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 10:02:57,915 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 10:02:58,050 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-07 10:02:58,050 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [80947876] [2021-11-07 10:02:58,050 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 10:02:58,051 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-07 10:02:58,052 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-07 10:02:58,076 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 10:02:58,080 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 10:02:58,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 10:02:58,956 INFO L263 TraceCheckSpWp]: Trace formula consists of 2463 conjuncts, 9 conjunts are in the unsatisfiable core [2021-11-07 10:02:58,964 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 10:02:59,556 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 10:02:59,556 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-07 10:02:59,556 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 10:02:59,556 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [542159395] [2021-11-07 10:02:59,556 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-07 10:02:59,556 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [80947876] [2021-11-07 10:02:59,557 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [80947876] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 10:02:59,557 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 10:02:59,557 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-07 10:02:59,558 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1597881025] [2021-11-07 10:02:59,558 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 10:02:59,558 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-07 10:02:59,558 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 10:02:59,559 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-07 10:02:59,559 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-11-07 10:02:59,559 INFO L87 Difference]: Start difference. First operand 199 states and 245 transitions. Second operand has 7 states, 7 states have (on average 7.0) internal successors, (49), 6 states have internal predecessors, (49), 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 10:03:00,214 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 10:03:00,214 INFO L93 Difference]: Finished difference Result 372 states and 455 transitions. [2021-11-07 10:03:00,215 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-07 10:03:00,215 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.0) internal successors, (49), 6 states have internal predecessors, (49), 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 49 [2021-11-07 10:03:00,216 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 10:03:00,217 INFO L225 Difference]: With dead ends: 372 [2021-11-07 10:03:00,217 INFO L226 Difference]: Without dead ends: 237 [2021-11-07 10:03:00,218 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 43 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 345.53ms TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2021-11-07 10:03:00,219 INFO L933 BasicCegarLoop]: 218 mSDtfsCounter, 1090 mSDsluCounter, 219 mSDsCounter, 0 mSdLazyCounter, 81 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 334.18ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 1090 SdHoareTripleChecker+Valid, 437 SdHoareTripleChecker+Invalid, 81 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 9.63ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 81 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 400.95ms IncrementalHoareTripleChecker+Time [2021-11-07 10:03:00,219 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1090 Valid, 437 Invalid, 81 Unknown, 0 Unchecked, 9.63ms Time], IncrementalHoareTripleChecker [0 Valid, 81 Invalid, 0 Unknown, 0 Unchecked, 400.95ms Time] [2021-11-07 10:03:00,220 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 237 states. [2021-11-07 10:03:00,231 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 237 to 199. [2021-11-07 10:03:00,231 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 199 states, 190 states have (on average 1.2842105263157895) internal successors, (244), 198 states have internal predecessors, (244), 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 10:03:00,232 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 199 states to 199 states and 244 transitions. [2021-11-07 10:03:00,233 INFO L78 Accepts]: Start accepts. Automaton has 199 states and 244 transitions. Word has length 49 [2021-11-07 10:03:00,233 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 10:03:00,233 INFO L470 AbstractCegarLoop]: Abstraction has 199 states and 244 transitions. [2021-11-07 10:03:00,233 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 7.0) internal successors, (49), 6 states have internal predecessors, (49), 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 10:03:00,234 INFO L276 IsEmpty]: Start isEmpty. Operand 199 states and 244 transitions. [2021-11-07 10:03:00,235 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2021-11-07 10:03:00,235 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 10:03:00,235 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] [2021-11-07 10:03:00,267 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-11-07 10:03:00,445 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 10:03:00,446 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 6 more)] === [2021-11-07 10:03:00,447 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 10:03:00,447 INFO L85 PathProgramCache]: Analyzing trace with hash 802072627, now seen corresponding path program 1 times [2021-11-07 10:03:00,447 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 10:03:00,447 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1298359138] [2021-11-07 10:03:00,448 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 10:03:00,448 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 10:03:00,595 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-07 10:03:00,595 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [862605143] [2021-11-07 10:03:00,595 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 10:03:00,596 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-07 10:03:00,597 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-07 10:03:00,611 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 10:03:00,613 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 10:03:01,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 10:03:01,416 INFO L263 TraceCheckSpWp]: Trace formula consists of 2553 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-07 10:03:01,421 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 10:03:01,567 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 10:03:01,567 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-07 10:03:01,567 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 10:03:01,567 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1298359138] [2021-11-07 10:03:01,567 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-07 10:03:01,567 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [862605143] [2021-11-07 10:03:01,567 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [862605143] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 10:03:01,567 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 10:03:01,567 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-07 10:03:01,568 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1191141876] [2021-11-07 10:03:01,568 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 10:03:01,568 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-07 10:03:01,568 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 10:03:01,568 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-07 10:03:01,569 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-07 10:03:01,569 INFO L87 Difference]: Start difference. First operand 199 states and 244 transitions. Second operand has 4 states, 4 states have (on average 14.25) internal successors, (57), 4 states have internal predecessors, (57), 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 10:03:01,915 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 10:03:01,915 INFO L93 Difference]: Finished difference Result 360 states and 452 transitions. [2021-11-07 10:03:01,916 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-07 10:03:01,916 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 14.25) internal successors, (57), 4 states have internal predecessors, (57), 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 57 [2021-11-07 10:03:01,916 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 10:03:01,917 INFO L225 Difference]: With dead ends: 360 [2021-11-07 10:03:01,917 INFO L226 Difference]: Without dead ends: 224 [2021-11-07 10:03:01,918 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 54 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 56.43ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-07 10:03:01,918 INFO L933 BasicCegarLoop]: 259 mSDtfsCounter, 38 mSDsluCounter, 418 mSDsCounter, 0 mSdLazyCounter, 74 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 272.06ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 38 SdHoareTripleChecker+Valid, 677 SdHoareTripleChecker+Invalid, 91 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 3.57ms SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 74 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 299.91ms IncrementalHoareTripleChecker+Time [2021-11-07 10:03:01,919 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [38 Valid, 677 Invalid, 91 Unknown, 0 Unchecked, 3.57ms Time], IncrementalHoareTripleChecker [17 Valid, 74 Invalid, 0 Unknown, 0 Unchecked, 299.91ms Time] [2021-11-07 10:03:01,919 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 224 states. [2021-11-07 10:03:01,927 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 224 to 209. [2021-11-07 10:03:01,928 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 209 states, 200 states have (on average 1.27) internal successors, (254), 208 states have internal predecessors, (254), 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 10:03:01,929 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 209 states to 209 states and 254 transitions. [2021-11-07 10:03:01,929 INFO L78 Accepts]: Start accepts. Automaton has 209 states and 254 transitions. Word has length 57 [2021-11-07 10:03:01,929 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 10:03:01,929 INFO L470 AbstractCegarLoop]: Abstraction has 209 states and 254 transitions. [2021-11-07 10:03:01,929 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 14.25) internal successors, (57), 4 states have internal predecessors, (57), 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 10:03:01,930 INFO L276 IsEmpty]: Start isEmpty. Operand 209 states and 254 transitions. [2021-11-07 10:03:01,931 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2021-11-07 10:03:01,931 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 10:03:01,931 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] [2021-11-07 10:03:01,959 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2021-11-07 10:03:02,147 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 10:03:02,148 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 6 more)] === [2021-11-07 10:03:02,148 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 10:03:02,148 INFO L85 PathProgramCache]: Analyzing trace with hash -972934735, now seen corresponding path program 1 times [2021-11-07 10:03:02,148 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 10:03:02,148 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2023818744] [2021-11-07 10:03:02,149 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 10:03:02,149 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 10:03:02,220 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-07 10:03:02,221 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [903183173] [2021-11-07 10:03:02,221 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 10:03:02,221 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-07 10:03:02,222 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-07 10:03:02,224 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 10:03:02,225 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 10:03:02,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 10:03:02,907 INFO L263 TraceCheckSpWp]: Trace formula consists of 2558 conjuncts, 46 conjunts are in the unsatisfiable core [2021-11-07 10:03:02,915 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 10:03:03,641 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12 [2021-11-07 10:03:03,876 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 12 [2021-11-07 10:03:04,183 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 10:03:04,184 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-07 10:03:04,184 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 10:03:04,184 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2023818744] [2021-11-07 10:03:04,184 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-07 10:03:04,184 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [903183173] [2021-11-07 10:03:04,184 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [903183173] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 10:03:04,184 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 10:03:04,184 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-11-07 10:03:04,185 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1446419175] [2021-11-07 10:03:04,185 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 10:03:04,185 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-11-07 10:03:04,185 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 10:03:04,186 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-11-07 10:03:04,186 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2021-11-07 10:03:04,186 INFO L87 Difference]: Start difference. First operand 209 states and 254 transitions. Second operand has 10 states, 10 states have (on average 5.7) internal successors, (57), 10 states have internal predecessors, (57), 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 10:03:06,240 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-07 10:03:08,359 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.12s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-07 10:03:10,274 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 10:03:10,274 INFO L93 Difference]: Finished difference Result 403 states and 489 transitions. [2021-11-07 10:03:10,275 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-11-07 10:03:10,275 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 5.7) internal successors, (57), 10 states have internal predecessors, (57), 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 57 [2021-11-07 10:03:10,275 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 10:03:10,276 INFO L225 Difference]: With dead ends: 403 [2021-11-07 10:03:10,276 INFO L226 Difference]: Without dead ends: 259 [2021-11-07 10:03:10,277 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 48 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 1032.30ms TimeCoverageRelationStatistics Valid=113, Invalid=229, Unknown=0, NotChecked=0, Total=342 [2021-11-07 10:03:10,278 INFO L933 BasicCegarLoop]: 234 mSDtfsCounter, 828 mSDsluCounter, 783 mSDsCounter, 0 mSdLazyCounter, 277 mSolverCounterSat, 27 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5046.90ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 828 SdHoareTripleChecker+Valid, 1017 SdHoareTripleChecker+Invalid, 306 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 11.34ms SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 277 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5353.25ms IncrementalHoareTripleChecker+Time [2021-11-07 10:03:10,278 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [828 Valid, 1017 Invalid, 306 Unknown, 0 Unchecked, 11.34ms Time], IncrementalHoareTripleChecker [27 Valid, 277 Invalid, 2 Unknown, 0 Unchecked, 5353.25ms Time] [2021-11-07 10:03:10,279 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 259 states. [2021-11-07 10:03:10,294 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 259 to 207. [2021-11-07 10:03:10,298 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 207 states, 198 states have (on average 1.2676767676767677) internal successors, (251), 206 states have internal predecessors, (251), 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 10:03:10,299 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 207 states to 207 states and 251 transitions. [2021-11-07 10:03:10,299 INFO L78 Accepts]: Start accepts. Automaton has 207 states and 251 transitions. Word has length 57 [2021-11-07 10:03:10,300 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 10:03:10,300 INFO L470 AbstractCegarLoop]: Abstraction has 207 states and 251 transitions. [2021-11-07 10:03:10,300 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 5.7) internal successors, (57), 10 states have internal predecessors, (57), 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 10:03:10,301 INFO L276 IsEmpty]: Start isEmpty. Operand 207 states and 251 transitions. [2021-11-07 10:03:10,304 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2021-11-07 10:03:10,305 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 10:03:10,305 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] [2021-11-07 10:03:10,342 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 10:03:10,519 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 10:03:10,520 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 6 more)] === [2021-11-07 10:03:10,520 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 10:03:10,520 INFO L85 PathProgramCache]: Analyzing trace with hash -702926311, now seen corresponding path program 1 times [2021-11-07 10:03:10,521 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 10:03:10,521 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [985773241] [2021-11-07 10:03:10,521 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 10:03:10,521 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 10:03:10,602 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-07 10:03:10,603 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1057489822] [2021-11-07 10:03:10,603 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 10:03:10,603 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-07 10:03:10,604 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-07 10:03:10,611 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 10:03:10,616 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 10:03:11,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 10:03:11,345 INFO L263 TraceCheckSpWp]: Trace formula consists of 2558 conjuncts, 8 conjunts are in the unsatisfiable core [2021-11-07 10:03:11,350 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 10:03:11,710 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 10:03:11,710 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-07 10:03:11,710 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 10:03:11,711 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [985773241] [2021-11-07 10:03:11,711 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-07 10:03:11,711 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1057489822] [2021-11-07 10:03:11,711 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1057489822] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 10:03:11,711 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 10:03:11,711 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-07 10:03:11,711 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1017027185] [2021-11-07 10:03:11,711 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 10:03:11,712 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-07 10:03:11,712 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 10:03:11,713 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-07 10:03:11,713 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-07 10:03:11,713 INFO L87 Difference]: Start difference. First operand 207 states and 251 transitions. Second operand has 5 states, 5 states have (on average 11.8) internal successors, (59), 5 states have internal predecessors, (59), 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 10:03:13,767 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-07 10:03:15,902 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.13s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-07 10:03:17,413 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 10:03:17,413 INFO L93 Difference]: Finished difference Result 452 states and 555 transitions. [2021-11-07 10:03:17,414 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-07 10:03:17,414 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.8) internal successors, (59), 5 states have internal predecessors, (59), 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 59 [2021-11-07 10:03:17,414 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 10:03:17,416 INFO L225 Difference]: With dead ends: 452 [2021-11-07 10:03:17,416 INFO L226 Difference]: Without dead ends: 307 [2021-11-07 10:03:17,416 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 55 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 356.81ms TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-11-07 10:03:17,417 INFO L933 BasicCegarLoop]: 274 mSDtfsCounter, 130 mSDsluCounter, 628 mSDsCounter, 0 mSdLazyCounter, 257 mSolverCounterSat, 31 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5068.78ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 130 SdHoareTripleChecker+Valid, 902 SdHoareTripleChecker+Invalid, 290 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 7.47ms SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 257 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5434.30ms IncrementalHoareTripleChecker+Time [2021-11-07 10:03:17,417 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [130 Valid, 902 Invalid, 290 Unknown, 0 Unchecked, 7.47ms Time], IncrementalHoareTripleChecker [31 Valid, 257 Invalid, 2 Unknown, 0 Unchecked, 5434.30ms Time] [2021-11-07 10:03:17,418 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 307 states. [2021-11-07 10:03:17,426 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 307 to 214. [2021-11-07 10:03:17,427 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 214 states, 205 states have (on average 1.2585365853658537) internal successors, (258), 213 states have internal predecessors, (258), 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 10:03:17,427 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 214 states to 214 states and 258 transitions. [2021-11-07 10:03:17,428 INFO L78 Accepts]: Start accepts. Automaton has 214 states and 258 transitions. Word has length 59 [2021-11-07 10:03:17,428 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 10:03:17,428 INFO L470 AbstractCegarLoop]: Abstraction has 214 states and 258 transitions. [2021-11-07 10:03:17,428 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.8) internal successors, (59), 5 states have internal predecessors, (59), 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 10:03:17,429 INFO L276 IsEmpty]: Start isEmpty. Operand 214 states and 258 transitions. [2021-11-07 10:03:17,433 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2021-11-07 10:03:17,433 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 10:03:17,434 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] [2021-11-07 10:03:17,460 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 10:03:17,648 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 10:03:17,648 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 6 more)] === [2021-11-07 10:03:17,649 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 10:03:17,649 INFO L85 PathProgramCache]: Analyzing trace with hash -645668009, now seen corresponding path program 1 times [2021-11-07 10:03:17,649 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 10:03:17,649 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1629198633] [2021-11-07 10:03:17,649 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 10:03:17,649 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 10:03:17,705 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-07 10:03:17,705 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1824898672] [2021-11-07 10:03:17,706 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 10:03:17,706 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-07 10:03:17,706 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-07 10:03:17,715 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 10:03:17,742 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 10:10:21,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 10:10:21,605 INFO L263 TraceCheckSpWp]: Trace formula consists of 2563 conjuncts, 9 conjunts are in the unsatisfiable core [2021-11-07 10:10:21,608 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 10:10:21,852 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 10:10:21,852 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-07 10:10:21,853 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 10:10:21,853 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1629198633] [2021-11-07 10:10:21,853 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-07 10:10:21,853 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1824898672] [2021-11-07 10:10:21,853 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1824898672] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 10:10:21,853 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 10:10:21,854 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-07 10:10:21,854 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [796495722] [2021-11-07 10:10:21,854 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 10:10:21,854 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-07 10:10:21,855 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 10:10:21,855 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-07 10:10:21,855 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 10:10:21,855 INFO L87 Difference]: Start difference. First operand 214 states and 258 transitions. Second operand has 3 states, 3 states have (on average 19.666666666666668) internal successors, (59), 3 states have internal predecessors, (59), 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 10:10:21,882 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 10:10:21,882 INFO L93 Difference]: Finished difference Result 398 states and 483 transitions. [2021-11-07 10:10:21,883 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-07 10:10:21,883 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 19.666666666666668) internal successors, (59), 3 states have internal predecessors, (59), 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 59 [2021-11-07 10:10:21,884 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 10:10:21,885 INFO L225 Difference]: With dead ends: 398 [2021-11-07 10:10:21,885 INFO L226 Difference]: Without dead ends: 214 [2021-11-07 10:10:21,886 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 57 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 14.08ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 10:10:21,886 INFO L933 BasicCegarLoop]: 239 mSDtfsCounter, 214 mSDsluCounter, 26 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 15.06ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 214 SdHoareTripleChecker+Valid, 265 SdHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.97ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 16.09ms IncrementalHoareTripleChecker+Time [2021-11-07 10:10:21,887 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [214 Valid, 265 Invalid, 3 Unknown, 0 Unchecked, 0.97ms Time], IncrementalHoareTripleChecker [0 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 16.09ms Time] [2021-11-07 10:10:21,888 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 214 states. [2021-11-07 10:10:21,895 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 214 to 214. [2021-11-07 10:10:21,896 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 214 states, 205 states have (on average 1.2536585365853659) internal successors, (257), 213 states have internal predecessors, (257), 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 10:10:21,897 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 214 states to 214 states and 257 transitions. [2021-11-07 10:10:21,897 INFO L78 Accepts]: Start accepts. Automaton has 214 states and 257 transitions. Word has length 59 [2021-11-07 10:10:21,897 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 10:10:21,897 INFO L470 AbstractCegarLoop]: Abstraction has 214 states and 257 transitions. [2021-11-07 10:10:21,897 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.666666666666668) internal successors, (59), 3 states have internal predecessors, (59), 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 10:10:21,898 INFO L276 IsEmpty]: Start isEmpty. Operand 214 states and 257 transitions. [2021-11-07 10:10:21,898 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2021-11-07 10:10:21,898 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 10:10:21,898 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 10:10:22,115 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 10:10:22,207 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 137 [2021-11-07 10:10:22,207 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 10:10:22,207 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 6 more)] === [2021-11-07 10:10:22,208 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 10:10:22,208 INFO L85 PathProgramCache]: Analyzing trace with hash -1838986612, now seen corresponding path program 1 times [2021-11-07 10:10:22,208 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 10:10:22,208 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1483138133] [2021-11-07 10:10:22,208 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 10:10:22,208 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 10:10:22,292 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-07 10:10:22,292 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [325457627] [2021-11-07 10:10:22,292 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 10:10:22,293 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-07 10:10:22,293 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-07 10:10:22,294 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 10:10:22,295 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