./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/aws-c-common/aws_array_list_ensure_capacity_harness.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 5f08f0f0 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_array_list_ensure_capacity_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 c12ad62b7b197015493bfb3c1dd9a5de2922d9b16e39f249961c276d8b82591b --- Real Ultimate output --- This is Ultimate 0.2.1-wip.dd.seqcomp-5f08f0f [2021-11-05 11:47:04,766 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-05 11:47:04,769 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-05 11:47:04,801 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-05 11:47:04,801 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-05 11:47:04,804 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-05 11:47:04,805 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-05 11:47:04,809 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-05 11:47:04,810 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-05 11:47:04,814 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-05 11:47:04,814 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-05 11:47:04,817 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-05 11:47:04,818 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-05 11:47:04,819 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-05 11:47:04,821 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-05 11:47:04,823 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-05 11:47:04,824 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-05 11:47:04,824 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-05 11:47:04,826 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-05 11:47:04,830 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-05 11:47:04,832 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-05 11:47:04,832 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-05 11:47:04,833 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-05 11:47:04,834 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-05 11:47:04,839 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-05 11:47:04,839 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-05 11:47:04,840 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-05 11:47:04,841 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-05 11:47:04,841 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-05 11:47:04,842 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-05 11:47:04,842 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-05 11:47:04,843 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-05 11:47:04,843 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-05 11:47:04,844 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-05 11:47:04,845 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-05 11:47:04,845 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-05 11:47:04,846 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-05 11:47:04,846 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-05 11:47:04,846 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-05 11:47:04,847 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-05 11:47:04,848 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-05 11:47:04,849 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-11-05 11:47:04,877 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-05 11:47:04,878 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-05 11:47:04,878 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-05 11:47:04,879 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-05 11:47:04,880 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-05 11:47:04,880 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-05 11:47:04,880 INFO L138 SettingsManager]: * Use SBE=true [2021-11-05 11:47:04,881 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-05 11:47:04,881 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-05 11:47:04,881 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-05 11:47:04,882 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-05 11:47:04,882 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-05 11:47:04,882 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-05 11:47:04,882 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-05 11:47:04,882 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-05 11:47:04,883 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-05 11:47:04,883 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-05 11:47:04,883 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-05 11:47:04,883 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-05 11:47:04,883 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-05 11:47:04,883 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-05 11:47:04,884 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-05 11:47:04,884 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-05 11:47:04,884 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-05 11:47:04,884 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-05 11:47:04,884 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-05 11:47:04,892 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-05 11:47:04,892 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-05 11:47:04,892 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-05 11:47:04,892 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c12ad62b7b197015493bfb3c1dd9a5de2922d9b16e39f249961c276d8b82591b [2021-11-05 11:47:05,161 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-05 11:47:05,177 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-05 11:47:05,179 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-05 11:47:05,180 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-05 11:47:05,181 INFO L275 PluginConnector]: CDTParser initialized [2021-11-05 11:47:05,182 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/aws-c-common/aws_array_list_ensure_capacity_harness.i [2021-11-05 11:47:05,248 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/75fbec6da/6c5b513303654cd18a2b9dbc6b60fbe2/FLAG281b87c3f [2021-11-05 11:47:05,816 INFO L306 CDTParser]: Found 1 translation units. [2021-11-05 11:47:05,816 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_array_list_ensure_capacity_harness.i [2021-11-05 11:47:05,845 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/75fbec6da/6c5b513303654cd18a2b9dbc6b60fbe2/FLAG281b87c3f [2021-11-05 11:47:06,237 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/75fbec6da/6c5b513303654cd18a2b9dbc6b60fbe2 [2021-11-05 11:47:06,240 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-05 11:47:06,241 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-05 11:47:06,242 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-05 11:47:06,243 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-05 11:47:06,245 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-05 11:47:06,246 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.11 11:47:06" (1/1) ... [2021-11-05 11:47:06,246 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@236ff40d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 11:47:06, skipping insertion in model container [2021-11-05 11:47:06,246 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.11 11:47:06" (1/1) ... [2021-11-05 11:47:06,251 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-05 11:47:06,318 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-05 11:47:06,529 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_array_list_ensure_capacity_harness.i[4504,4517] [2021-11-05 11:47:06,536 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_array_list_ensure_capacity_harness.i[4564,4577] [2021-11-05 11:47:06,553 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-05 11:47:06,559 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-05 11:47:06,975 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-05 11:47:07,020 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-05 11:47:07,021 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-05 11:47:07,021 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-05 11:47:07,021 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-05 11:47:07,022 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-05 11:47:07,030 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-05 11:47:07,031 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-05 11:47:07,032 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-05 11:47:07,033 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-05 11:47:07,034 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-05 11:47:07,034 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-05 11:47:07,035 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-05 11:47:07,035 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-05 11:47:07,257 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-05 11:47:07,259 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-05 11:47:07,260 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-05 11:47:07,263 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-05 11:47:07,267 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-05 11:47:07,268 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-05 11:47:07,269 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-05 11:47:07,271 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-05 11:47:07,272 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-05 11:47:07,273 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-05 11:47:07,389 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-05 11:47:07,397 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-05 11:47:07,401 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-05 11:47:07,409 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-05 11:47:07,435 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-05 11:47:07,439 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-05 11:47:07,466 INFO L203 MainTranslator]: Completed pre-run [2021-11-05 11:47:07,484 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_array_list_ensure_capacity_harness.i[4504,4517] [2021-11-05 11:47:07,485 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_array_list_ensure_capacity_harness.i[4564,4577] [2021-11-05 11:47:07,488 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-05 11:47:07,489 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-05 11:47:07,528 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-05 11:47:07,537 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-05 11:47:07,542 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-05 11:47:07,542 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-05 11:47:07,542 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-05 11:47:07,543 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-05 11:47:07,548 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-05 11:47:07,548 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-05 11:47:07,549 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-05 11:47:07,549 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-05 11:47:07,550 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-05 11:47:07,551 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-05 11:47:07,551 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-05 11:47:07,551 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-05 11:47:07,592 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-05 11:47:07,592 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-05 11:47:07,594 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-05 11:47:07,594 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-05 11:47:07,594 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-05 11:47:07,595 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-05 11:47:07,595 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-05 11:47:07,595 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-05 11:47:07,596 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-05 11:47:07,596 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-05 11:47:07,628 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-05 11:47:07,628 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-05 11:47:07,629 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-05 11:47:07,631 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-05 11:47:07,656 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-05 11:47:07,657 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-05 11:47:07,785 INFO L208 MainTranslator]: Completed translation [2021-11-05 11:47:07,786 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 11:47:07 WrapperNode [2021-11-05 11:47:07,786 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-05 11:47:07,787 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-05 11:47:07,787 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-05 11:47:07,787 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-05 11:47:07,792 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 11:47:07" (1/1) ... [2021-11-05 11:47:07,874 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 11:47:07" (1/1) ... [2021-11-05 11:47:07,971 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-05 11:47:07,972 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-05 11:47:07,973 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-05 11:47:07,973 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-05 11:47:07,979 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 11:47:07" (1/1) ... [2021-11-05 11:47:07,979 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 11:47:07" (1/1) ... [2021-11-05 11:47:08,004 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 11:47:07" (1/1) ... [2021-11-05 11:47:08,005 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 11:47:07" (1/1) ... [2021-11-05 11:47:08,061 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 11:47:07" (1/1) ... [2021-11-05 11:47:08,075 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 11:47:07" (1/1) ... [2021-11-05 11:47:08,085 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 11:47:07" (1/1) ... [2021-11-05 11:47:08,101 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-05 11:47:08,105 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-05 11:47:08,105 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-05 11:47:08,105 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-05 11:47:08,106 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 11:47:07" (1/1) ... [2021-11-05 11:47:08,111 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-05 11:47:08,119 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-05 11:47:08,141 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) [2021-11-05 11:47:08,176 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 [2021-11-05 11:47:08,198 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-05 11:47:08,198 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-05 11:47:08,199 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-05 11:47:08,199 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-05 11:47:08,199 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-05 11:47:08,199 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-05 11:47:08,199 INFO L130 BoogieDeclarations]: Found specification of procedure __builtin_uaddl_overflow [2021-11-05 11:47:08,199 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-05 11:47:08,200 INFO L130 BoogieDeclarations]: Found specification of procedure __builtin_umull_overflow [2021-11-05 11:47:08,200 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-05 11:47:08,200 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-05 11:47:08,200 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-05 11:47:08,200 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-05 11:47:16,099 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-05 11:47:16,099 INFO L299 CfgBuilder]: Removed 296 assume(true) statements. [2021-11-05 11:47:16,101 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.11 11:47:16 BoogieIcfgContainer [2021-11-05 11:47:16,101 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-05 11:47:16,102 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-05 11:47:16,103 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-05 11:47:16,105 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-05 11:47:16,105 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 05.11 11:47:06" (1/3) ... [2021-11-05 11:47:16,105 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4cb01aad and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.11 11:47:16, skipping insertion in model container [2021-11-05 11:47:16,106 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 11:47:07" (2/3) ... [2021-11-05 11:47:16,106 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4cb01aad and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.11 11:47:16, skipping insertion in model container [2021-11-05 11:47:16,106 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.11 11:47:16" (3/3) ... [2021-11-05 11:47:16,107 INFO L111 eAbstractionObserver]: Analyzing ICFG aws_array_list_ensure_capacity_harness.i [2021-11-05 11:47:16,110 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-05 11:47:16,110 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 19 error locations. [2021-11-05 11:47:16,142 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-05 11:47:16,146 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 [2021-11-05 11:47:16,147 INFO L340 AbstractCegarLoop]: Starting to check reachability of 19 error locations. [2021-11-05 11:47:16,161 INFO L276 IsEmpty]: Start isEmpty. Operand has 349 states, 329 states have (on average 1.4164133738601823) internal successors, (466), 348 states have internal predecessors, (466), 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) [2021-11-05 11:47:16,166 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2021-11-05 11:47:16,167 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 11:47:16,167 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] [2021-11-05 11:47:16,168 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 16 more)] === [2021-11-05 11:47:16,171 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 11:47:16,184 INFO L85 PathProgramCache]: Analyzing trace with hash -649269600, now seen corresponding path program 1 times [2021-11-05 11:47:16,190 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 11:47:16,191 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2102050509] [2021-11-05 11:47:16,191 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 11:47:16,192 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 11:47:16,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 11:47:16,643 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-05 11:47:16,652 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 11:47:16,652 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2102050509] [2021-11-05 11:47:16,652 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2102050509] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 11:47:16,653 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 11:47:16,653 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-05 11:47:16,654 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [249848151] [2021-11-05 11:47:16,655 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 11:47:16,658 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-05 11:47:16,658 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 11:47:16,673 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-05 11:47:16,674 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-05 11:47:16,677 INFO L87 Difference]: Start difference. First operand has 349 states, 329 states have (on average 1.4164133738601823) internal successors, (466), 348 states have internal predecessors, (466), 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 17.0) internal successors, (34), 2 states have internal predecessors, (34), 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) [2021-11-05 11:47:16,720 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 11:47:16,720 INFO L93 Difference]: Finished difference Result 694 states and 927 transitions. [2021-11-05 11:47:16,721 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-05 11:47:16,722 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 17.0) internal successors, (34), 2 states have internal predecessors, (34), 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 34 [2021-11-05 11:47:16,722 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 11:47:16,731 INFO L225 Difference]: With dead ends: 694 [2021-11-05 11:47:16,731 INFO L226 Difference]: Without dead ends: 341 [2021-11-05 11:47:16,734 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 [2021-11-05 11:47:16,736 INFO L933 BasicCegarLoop]: 431 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, 431 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 3.65ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.00ms IncrementalHoareTripleChecker+Time [2021-11-05 11:47:16,737 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 431 Invalid, 0 Unknown, 0 Unchecked, 3.65ms Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.00ms Time] [2021-11-05 11:47:16,749 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 341 states. [2021-11-05 11:47:16,772 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 341 to 341. [2021-11-05 11:47:16,773 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 341 states, 322 states have (on average 1.3012422360248448) internal successors, (419), 340 states have internal predecessors, (419), 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) [2021-11-05 11:47:16,777 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 341 states to 341 states and 419 transitions. [2021-11-05 11:47:16,778 INFO L78 Accepts]: Start accepts. Automaton has 341 states and 419 transitions. Word has length 34 [2021-11-05 11:47:16,778 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 11:47:16,779 INFO L470 AbstractCegarLoop]: Abstraction has 341 states and 419 transitions. [2021-11-05 11:47:16,779 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 17.0) internal successors, (34), 2 states have internal predecessors, (34), 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) [2021-11-05 11:47:16,779 INFO L276 IsEmpty]: Start isEmpty. Operand 341 states and 419 transitions. [2021-11-05 11:47:16,780 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2021-11-05 11:47:16,780 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 11:47:16,780 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] [2021-11-05 11:47:16,781 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-05 11:47:16,781 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 16 more)] === [2021-11-05 11:47:16,781 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 11:47:16,782 INFO L85 PathProgramCache]: Analyzing trace with hash 1819461034, now seen corresponding path program 1 times [2021-11-05 11:47:16,782 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 11:47:16,782 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1317768764] [2021-11-05 11:47:16,782 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 11:47:16,782 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 11:47:16,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 11:47:17,061 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-05 11:47:17,061 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 11:47:17,062 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1317768764] [2021-11-05 11:47:17,062 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1317768764] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 11:47:17,062 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 11:47:17,063 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-05 11:47:17,063 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [115067268] [2021-11-05 11:47:17,063 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 11:47:17,064 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-05 11:47:17,064 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 11:47:17,066 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-05 11:47:17,066 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-05 11:47:17,067 INFO L87 Difference]: Start difference. First operand 341 states and 419 transitions. Second operand has 3 states, 3 states have (on average 11.333333333333334) internal successors, (34), 3 states have internal predecessors, (34), 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) [2021-11-05 11:47:17,134 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 11:47:17,134 INFO L93 Difference]: Finished difference Result 669 states and 823 transitions. [2021-11-05 11:47:17,134 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-05 11:47:17,135 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 11.333333333333334) internal successors, (34), 3 states have internal predecessors, (34), 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 34 [2021-11-05 11:47:17,135 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 11:47:17,138 INFO L225 Difference]: With dead ends: 669 [2021-11-05 11:47:17,138 INFO L226 Difference]: Without dead ends: 342 [2021-11-05 11:47:17,142 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 13.72ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-05 11:47:17,143 INFO L933 BasicCegarLoop]: 418 mSDtfsCounter, 0 mSDsluCounter, 414 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 22.01ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 832 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 6.66ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 24.10ms IncrementalHoareTripleChecker+Time [2021-11-05 11:47:17,143 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 832 Invalid, 5 Unknown, 0 Unchecked, 6.66ms Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 24.10ms Time] [2021-11-05 11:47:17,146 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 342 states. [2021-11-05 11:47:17,164 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 342 to 342. [2021-11-05 11:47:17,165 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 342 states, 323 states have (on average 1.3003095975232197) internal successors, (420), 341 states have internal predecessors, (420), 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) [2021-11-05 11:47:17,166 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 342 states to 342 states and 420 transitions. [2021-11-05 11:47:17,166 INFO L78 Accepts]: Start accepts. Automaton has 342 states and 420 transitions. Word has length 34 [2021-11-05 11:47:17,166 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 11:47:17,166 INFO L470 AbstractCegarLoop]: Abstraction has 342 states and 420 transitions. [2021-11-05 11:47:17,167 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 11.333333333333334) internal successors, (34), 3 states have internal predecessors, (34), 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) [2021-11-05 11:47:17,167 INFO L276 IsEmpty]: Start isEmpty. Operand 342 states and 420 transitions. [2021-11-05 11:47:17,168 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2021-11-05 11:47:17,168 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 11:47:17,168 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] [2021-11-05 11:47:17,168 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-05 11:47:17,168 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 16 more)] === [2021-11-05 11:47:17,169 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 11:47:17,169 INFO L85 PathProgramCache]: Analyzing trace with hash 433257640, now seen corresponding path program 1 times [2021-11-05 11:47:17,170 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 11:47:17,170 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [946577430] [2021-11-05 11:47:17,170 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 11:47:17,170 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 11:47:17,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 11:47:17,393 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-05 11:47:17,394 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 11:47:17,394 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [946577430] [2021-11-05 11:47:17,394 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [946577430] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 11:47:17,394 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 11:47:17,394 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-05 11:47:17,394 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [68353566] [2021-11-05 11:47:17,394 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 11:47:17,394 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-05 11:47:17,395 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 11:47:17,395 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-05 11:47:17,395 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-05 11:47:17,396 INFO L87 Difference]: Start difference. First operand 342 states and 420 transitions. Second operand has 4 states, 4 states have (on average 8.5) internal successors, (34), 4 states have internal predecessors, (34), 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) [2021-11-05 11:47:17,960 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 11:47:17,960 INFO L93 Difference]: Finished difference Result 652 states and 800 transitions. [2021-11-05 11:47:17,961 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-05 11:47:17,961 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 8.5) internal successors, (34), 4 states have internal predecessors, (34), 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 34 [2021-11-05 11:47:17,961 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 11:47:17,963 INFO L225 Difference]: With dead ends: 652 [2021-11-05 11:47:17,963 INFO L226 Difference]: Without dead ends: 342 [2021-11-05 11:47:17,963 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 60.01ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-05 11:47:17,964 INFO L933 BasicCegarLoop]: 388 mSDtfsCounter, 485 mSDsluCounter, 260 mSDsCounter, 0 mSdLazyCounter, 102 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 430.67ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 485 SdHoareTripleChecker+Valid, 648 SdHoareTripleChecker+Invalid, 107 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 5.99ms SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 102 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 500.41ms IncrementalHoareTripleChecker+Time [2021-11-05 11:47:17,964 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [485 Valid, 648 Invalid, 107 Unknown, 0 Unchecked, 5.99ms Time], IncrementalHoareTripleChecker [5 Valid, 102 Invalid, 0 Unknown, 0 Unchecked, 500.41ms Time] [2021-11-05 11:47:17,965 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 342 states. [2021-11-05 11:47:17,972 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 342 to 342. [2021-11-05 11:47:17,972 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 342 states, 323 states have (on average 1.2910216718266254) internal successors, (417), 341 states have internal predecessors, (417), 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) [2021-11-05 11:47:17,974 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 342 states to 342 states and 417 transitions. [2021-11-05 11:47:17,974 INFO L78 Accepts]: Start accepts. Automaton has 342 states and 417 transitions. Word has length 34 [2021-11-05 11:47:17,974 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 11:47:17,974 INFO L470 AbstractCegarLoop]: Abstraction has 342 states and 417 transitions. [2021-11-05 11:47:17,975 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 8.5) internal successors, (34), 4 states have internal predecessors, (34), 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) [2021-11-05 11:47:17,975 INFO L276 IsEmpty]: Start isEmpty. Operand 342 states and 417 transitions. [2021-11-05 11:47:17,976 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2021-11-05 11:47:17,976 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 11:47:17,976 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] [2021-11-05 11:47:17,976 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-05 11:47:17,976 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 16 more)] === [2021-11-05 11:47:17,977 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 11:47:17,977 INFO L85 PathProgramCache]: Analyzing trace with hash -1339226978, now seen corresponding path program 1 times [2021-11-05 11:47:17,977 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 11:47:17,977 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [207887946] [2021-11-05 11:47:17,978 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 11:47:17,978 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 11:47:18,053 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-05 11:47:18,054 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1350636197] [2021-11-05 11:47:18,054 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 11:47:18,054 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-05 11:47:18,054 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-05 11:47:18,056 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) [2021-11-05 11:47:18,058 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-11-05 11:47:18,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 11:47:18,813 INFO L263 TraceCheckSpWp]: Trace formula consists of 2610 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-05 11:47:18,821 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-05 11:47:18,998 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-05 11:47:18,999 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-05 11:47:18,999 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 11:47:18,999 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [207887946] [2021-11-05 11:47:18,999 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-05 11:47:18,999 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1350636197] [2021-11-05 11:47:18,999 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1350636197] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 11:47:19,000 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 11:47:19,000 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-05 11:47:19,000 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [886091938] [2021-11-05 11:47:19,000 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 11:47:19,000 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-05 11:47:19,000 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 11:47:19,001 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-05 11:47:19,001 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-05 11:47:19,001 INFO L87 Difference]: Start difference. First operand 342 states and 417 transitions. Second operand has 4 states, 4 states have (on average 12.5) internal successors, (50), 4 states have internal predecessors, (50), 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) [2021-11-05 11:47:19,629 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 11:47:19,629 INFO L93 Difference]: Finished difference Result 713 states and 880 transitions. [2021-11-05 11:47:19,630 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-05 11:47:19,630 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 12.5) internal successors, (50), 4 states have internal predecessors, (50), 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 50 [2021-11-05 11:47:19,630 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 11:47:19,631 INFO L225 Difference]: With dead ends: 713 [2021-11-05 11:47:19,631 INFO L226 Difference]: Without dead ends: 402 [2021-11-05 11:47:19,632 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 48 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 44.75ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-05 11:47:19,633 INFO L933 BasicCegarLoop]: 459 mSDtfsCounter, 87 mSDsluCounter, 664 mSDsCounter, 0 mSdLazyCounter, 179 mSolverCounterSat, 45 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 526.92ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 87 SdHoareTripleChecker+Valid, 1123 SdHoareTripleChecker+Invalid, 224 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 5.88ms SdHoareTripleChecker+Time, 45 IncrementalHoareTripleChecker+Valid, 179 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 577.16ms IncrementalHoareTripleChecker+Time [2021-11-05 11:47:19,633 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [87 Valid, 1123 Invalid, 224 Unknown, 0 Unchecked, 5.88ms Time], IncrementalHoareTripleChecker [45 Valid, 179 Invalid, 0 Unknown, 0 Unchecked, 577.16ms Time] [2021-11-05 11:47:19,634 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 402 states. [2021-11-05 11:47:19,638 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 402 to 366. [2021-11-05 11:47:19,638 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 366 states, 347 states have (on average 1.2708933717579252) internal successors, (441), 365 states have internal predecessors, (441), 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) [2021-11-05 11:47:19,639 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 366 states to 366 states and 441 transitions. [2021-11-05 11:47:19,639 INFO L78 Accepts]: Start accepts. Automaton has 366 states and 441 transitions. Word has length 50 [2021-11-05 11:47:19,640 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 11:47:19,640 INFO L470 AbstractCegarLoop]: Abstraction has 366 states and 441 transitions. [2021-11-05 11:47:19,640 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.5) internal successors, (50), 4 states have internal predecessors, (50), 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) [2021-11-05 11:47:19,640 INFO L276 IsEmpty]: Start isEmpty. Operand 366 states and 441 transitions. [2021-11-05 11:47:19,641 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2021-11-05 11:47:19,641 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 11:47:19,641 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] [2021-11-05 11:47:19,665 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2021-11-05 11:47:19,859 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-05 11:47:19,859 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 16 more)] === [2021-11-05 11:47:19,860 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 11:47:19,860 INFO L85 PathProgramCache]: Analyzing trace with hash -521578528, now seen corresponding path program 1 times [2021-11-05 11:47:19,860 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 11:47:19,860 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [736032453] [2021-11-05 11:47:19,860 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 11:47:19,860 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 11:47:19,926 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-05 11:47:19,927 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1998973267] [2021-11-05 11:47:19,927 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 11:47:19,928 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-05 11:47:19,928 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-05 11:47:19,944 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) [2021-11-05 11:47:19,945 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-11-05 11:47:20,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 11:47:20,628 INFO L263 TraceCheckSpWp]: Trace formula consists of 2615 conjuncts, 9 conjunts are in the unsatisfiable core [2021-11-05 11:47:20,632 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-05 11:47:21,022 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-05 11:47:21,022 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-05 11:47:21,023 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 11:47:21,023 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [736032453] [2021-11-05 11:47:21,023 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-05 11:47:21,023 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1998973267] [2021-11-05 11:47:21,023 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1998973267] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 11:47:21,023 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 11:47:21,023 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-05 11:47:21,023 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1486111575] [2021-11-05 11:47:21,023 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 11:47:21,023 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-05 11:47:21,024 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 11:47:21,024 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-05 11:47:21,024 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-11-05 11:47:21,024 INFO L87 Difference]: Start difference. First operand 366 states and 441 transitions. Second operand has 6 states, 6 states have (on average 8.333333333333334) internal successors, (50), 5 states have internal predecessors, (50), 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) [2021-11-05 11:47:21,642 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 11:47:21,642 INFO L93 Difference]: Finished difference Result 657 states and 790 transitions. [2021-11-05 11:47:21,643 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-05 11:47:21,643 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.333333333333334) internal successors, (50), 5 states have internal predecessors, (50), 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 50 [2021-11-05 11:47:21,643 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 11:47:21,644 INFO L225 Difference]: With dead ends: 657 [2021-11-05 11:47:21,644 INFO L226 Difference]: Without dead ends: 366 [2021-11-05 11:47:21,645 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 185.71ms TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2021-11-05 11:47:21,646 INFO L933 BasicCegarLoop]: 323 mSDtfsCounter, 1395 mSDsluCounter, 144 mSDsCounter, 0 mSdLazyCounter, 135 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 429.17ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 1395 SdHoareTripleChecker+Valid, 467 SdHoareTripleChecker+Invalid, 156 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 6.27ms SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 135 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 470.08ms IncrementalHoareTripleChecker+Time [2021-11-05 11:47:21,646 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1395 Valid, 467 Invalid, 156 Unknown, 0 Unchecked, 6.27ms Time], IncrementalHoareTripleChecker [21 Valid, 135 Invalid, 0 Unknown, 0 Unchecked, 470.08ms Time] [2021-11-05 11:47:21,647 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 366 states. [2021-11-05 11:47:21,654 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 366 to 366. [2021-11-05 11:47:21,655 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 366 states, 347 states have (on average 1.2536023054755043) internal successors, (435), 365 states have internal predecessors, (435), 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) [2021-11-05 11:47:21,656 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 366 states to 366 states and 435 transitions. [2021-11-05 11:47:21,656 INFO L78 Accepts]: Start accepts. Automaton has 366 states and 435 transitions. Word has length 50 [2021-11-05 11:47:21,656 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 11:47:21,656 INFO L470 AbstractCegarLoop]: Abstraction has 366 states and 435 transitions. [2021-11-05 11:47:21,657 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.333333333333334) internal successors, (50), 5 states have internal predecessors, (50), 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) [2021-11-05 11:47:21,657 INFO L276 IsEmpty]: Start isEmpty. Operand 366 states and 435 transitions. [2021-11-05 11:47:21,658 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2021-11-05 11:47:21,658 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 11:47:21,658 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] [2021-11-05 11:47:21,681 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2021-11-05 11:47:21,875 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-05 11:47:21,878 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 16 more)] === [2021-11-05 11:47:21,878 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 11:47:21,878 INFO L85 PathProgramCache]: Analyzing trace with hash -1101114756, now seen corresponding path program 1 times [2021-11-05 11:47:21,879 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 11:47:21,879 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [694675319] [2021-11-05 11:47:21,879 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 11:47:21,879 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 11:47:22,016 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-05 11:47:22,016 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1295393493] [2021-11-05 11:47:22,016 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 11:47:22,017 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-05 11:47:22,017 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-05 11:47:22,018 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) [2021-11-05 11:47:22,019 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-11-05 11:47:22,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 11:47:22,672 INFO L263 TraceCheckSpWp]: Trace formula consists of 2710 conjuncts, 9 conjunts are in the unsatisfiable core [2021-11-05 11:47:22,676 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-05 11:47:23,212 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-05 11:47:23,212 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-05 11:47:23,212 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 11:47:23,212 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [694675319] [2021-11-05 11:47:23,212 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-05 11:47:23,212 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1295393493] [2021-11-05 11:47:23,212 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1295393493] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 11:47:23,212 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 11:47:23,212 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-05 11:47:23,213 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2081830631] [2021-11-05 11:47:23,213 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 11:47:23,213 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-05 11:47:23,213 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 11:47:23,213 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-05 11:47:23,213 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-11-05 11:47:23,214 INFO L87 Difference]: Start difference. First operand 366 states and 435 transitions. Second operand has 7 states, 7 states have (on average 8.285714285714286) internal successors, (58), 6 states have internal predecessors, (58), 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) [2021-11-05 11:47:23,878 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 11:47:23,878 INFO L93 Difference]: Finished difference Result 595 states and 698 transitions. [2021-11-05 11:47:23,879 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-05 11:47:23,879 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.285714285714286) internal successors, (58), 6 states have internal predecessors, (58), 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 58 [2021-11-05 11:47:23,879 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 11:47:23,880 INFO L225 Difference]: With dead ends: 595 [2021-11-05 11:47:23,880 INFO L226 Difference]: Without dead ends: 366 [2021-11-05 11:47:23,881 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 52 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 262.79ms TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2021-11-05 11:47:23,882 INFO L933 BasicCegarLoop]: 302 mSDtfsCounter, 1796 mSDsluCounter, 101 mSDsCounter, 0 mSdLazyCounter, 137 mSolverCounterSat, 54 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 446.53ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 1796 SdHoareTripleChecker+Valid, 403 SdHoareTripleChecker+Invalid, 191 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 4.67ms SdHoareTripleChecker+Time, 54 IncrementalHoareTripleChecker+Valid, 137 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 488.24ms IncrementalHoareTripleChecker+Time [2021-11-05 11:47:23,882 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1796 Valid, 403 Invalid, 191 Unknown, 0 Unchecked, 4.67ms Time], IncrementalHoareTripleChecker [54 Valid, 137 Invalid, 0 Unknown, 0 Unchecked, 488.24ms Time] [2021-11-05 11:47:23,883 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 366 states. [2021-11-05 11:47:23,889 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 366 to 366. [2021-11-05 11:47:23,889 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 366 states, 347 states have (on average 1.244956772334294) internal successors, (432), 365 states have internal predecessors, (432), 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) [2021-11-05 11:47:23,890 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 366 states to 366 states and 432 transitions. [2021-11-05 11:47:23,890 INFO L78 Accepts]: Start accepts. Automaton has 366 states and 432 transitions. Word has length 58 [2021-11-05 11:47:23,890 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 11:47:23,890 INFO L470 AbstractCegarLoop]: Abstraction has 366 states and 432 transitions. [2021-11-05 11:47:23,890 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 8.285714285714286) internal successors, (58), 6 states have internal predecessors, (58), 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) [2021-11-05 11:47:23,890 INFO L276 IsEmpty]: Start isEmpty. Operand 366 states and 432 transitions. [2021-11-05 11:47:23,891 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2021-11-05 11:47:23,900 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 11:47:23,902 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, 1, 1, 1, 1, 1, 1] [2021-11-05 11:47:23,926 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2021-11-05 11:47:24,103 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-05 11:47:24,104 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 16 more)] === [2021-11-05 11:47:24,104 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 11:47:24,104 INFO L85 PathProgramCache]: Analyzing trace with hash -997775264, now seen corresponding path program 1 times [2021-11-05 11:47:24,104 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 11:47:24,104 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1278251667] [2021-11-05 11:47:24,104 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 11:47:24,104 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 11:47:24,216 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-05 11:47:24,217 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [58881351] [2021-11-05 11:47:24,217 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 11:47:24,217 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-05 11:47:24,217 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-05 11:47:24,218 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) [2021-11-05 11:47:24,219 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2021-11-05 11:47:24,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 11:47:24,938 INFO L263 TraceCheckSpWp]: Trace formula consists of 2805 conjuncts, 7 conjunts are in the unsatisfiable core [2021-11-05 11:47:24,942 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-05 11:47:25,130 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-05 11:47:25,131 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-05 11:47:25,131 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 11:47:25,131 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1278251667] [2021-11-05 11:47:25,131 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-05 11:47:25,131 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [58881351] [2021-11-05 11:47:25,131 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [58881351] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 11:47:25,131 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 11:47:25,131 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-05 11:47:25,131 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [139874190] [2021-11-05 11:47:25,131 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 11:47:25,132 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-05 11:47:25,132 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 11:47:25,132 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-05 11:47:25,132 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-05 11:47:25,132 INFO L87 Difference]: Start difference. First operand 366 states and 432 transitions. Second operand has 5 states, 5 states have (on average 13.2) internal successors, (66), 5 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 11:47:25,244 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 11:47:25,245 INFO L93 Difference]: Finished difference Result 864 states and 1013 transitions. [2021-11-05 11:47:25,245 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-05 11:47:25,246 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.2) internal successors, (66), 5 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 66 [2021-11-05 11:47:25,246 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 11:47:25,248 INFO L225 Difference]: With dead ends: 864 [2021-11-05 11:47:25,248 INFO L226 Difference]: Without dead ends: 630 [2021-11-05 11:47:25,248 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 62 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 95.09ms TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-11-05 11:47:25,249 INFO L933 BasicCegarLoop]: 640 mSDtfsCounter, 581 mSDsluCounter, 1445 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 41.04ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 581 SdHoareTripleChecker+Valid, 2085 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 2.48ms SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 43.62ms IncrementalHoareTripleChecker+Time [2021-11-05 11:47:25,249 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [581 Valid, 2085 Invalid, 16 Unknown, 0 Unchecked, 2.48ms Time], IncrementalHoareTripleChecker [2 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 43.62ms Time] [2021-11-05 11:47:25,252 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 630 states. [2021-11-05 11:47:25,261 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 630 to 369. [2021-11-05 11:47:25,262 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 369 states, 350 states have (on average 1.2428571428571429) internal successors, (435), 368 states have internal predecessors, (435), 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) [2021-11-05 11:47:25,263 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 369 states to 369 states and 435 transitions. [2021-11-05 11:47:25,263 INFO L78 Accepts]: Start accepts. Automaton has 369 states and 435 transitions. Word has length 66 [2021-11-05 11:47:25,263 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 11:47:25,264 INFO L470 AbstractCegarLoop]: Abstraction has 369 states and 435 transitions. [2021-11-05 11:47:25,264 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.2) internal successors, (66), 5 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 11:47:25,264 INFO L276 IsEmpty]: Start isEmpty. Operand 369 states and 435 transitions. [2021-11-05 11:47:25,265 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2021-11-05 11:47:25,265 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 11:47:25,265 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, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-05 11:47:25,305 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2021-11-05 11:47:25,487 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-05 11:47:25,488 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 16 more)] === [2021-11-05 11:47:25,488 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 11:47:25,488 INFO L85 PathProgramCache]: Analyzing trace with hash -843218652, now seen corresponding path program 1 times [2021-11-05 11:47:25,488 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 11:47:25,488 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1282477676] [2021-11-05 11:47:25,488 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 11:47:25,488 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 11:47:25,567 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-05 11:47:25,568 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2040847659] [2021-11-05 11:47:25,568 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 11:47:25,568 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-05 11:47:25,569 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-05 11:47:25,587 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) [2021-11-05 11:47:25,588 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2021-11-05 11:53:08,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 11:53:08,770 INFO L263 TraceCheckSpWp]: Trace formula consists of 2814 conjuncts, 299 conjunts are in the unsatisfiable core [2021-11-05 11:53:08,775 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-05 11:53:08,846 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-11-05 11:53:09,145 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-05 11:53:09,147 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 67 treesize of output 49 [2021-11-05 11:53:09,155 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-05 11:53:09,156 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 38 treesize of output 20 [2021-11-05 11:53:09,335 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 15 treesize of output 1 [2021-11-05 11:53:09,619 INFO L354 Elim1Store]: treesize reduction 64, result has 19.0 percent of original size [2021-11-05 11:53:09,620 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 6 case distinctions, treesize of input 29 treesize of output 33 [2021-11-05 11:53:09,900 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 11:53:09,901 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 28 [2021-11-05 11:53:10,793 INFO L354 Elim1Store]: treesize reduction 48, result has 23.8 percent of original size [2021-11-05 11:53:10,794 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 5 case distinctions, treesize of input 47 treesize of output 54 [2021-11-05 11:53:11,478 INFO L354 Elim1Store]: treesize reduction 162, result has 21.0 percent of original size [2021-11-05 11:53:11,478 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 15 case distinctions, treesize of input 64 treesize of output 92 [2021-11-05 11:53:14,853 INFO L354 Elim1Store]: treesize reduction 238, result has 15.0 percent of original size [2021-11-05 11:53:14,853 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 6 select indices, 6 select index equivalence classes, 1 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 21 case distinctions, treesize of input 84 treesize of output 109 [2021-11-05 11:53:18,540 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 11:53:18,544 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 11:53:18,548 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 11:53:18,556 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 11:53:18,559 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 11:53:18,562 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 11:53:18,648 INFO L354 Elim1Store]: treesize reduction 14, result has 58.8 percent of original size [2021-11-05 11:53:18,648 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 7 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 5 case distinctions, treesize of input 98 treesize of output 114 [2021-11-05 11:53:31,258 INFO L354 Elim1Store]: treesize reduction 150, result has 30.6 percent of original size [2021-11-05 11:53:31,259 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 20 case distinctions, treesize of input 138 treesize of output 190 Killed by 15