./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 5b36d44f Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/aws-c-common/aws_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-5b36d44 [2021-11-07 08:16:50,559 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-07 08:16:50,561 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-07 08:16:50,595 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-07 08:16:50,599 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-07 08:16:50,601 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-07 08:16:50,603 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-07 08:16:50,605 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-07 08:16:50,610 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-07 08:16:50,611 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-07 08:16:50,612 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-07 08:16:50,612 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-07 08:16:50,613 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-07 08:16:50,615 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-07 08:16:50,616 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-07 08:16:50,618 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-07 08:16:50,620 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-07 08:16:50,623 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-07 08:16:50,624 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-07 08:16:50,629 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-07 08:16:50,630 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-07 08:16:50,634 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-07 08:16:50,635 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-07 08:16:50,635 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-07 08:16:50,637 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-07 08:16:50,641 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-07 08:16:50,642 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-07 08:16:50,642 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-07 08:16:50,643 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-07 08:16:50,643 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-07 08:16:50,644 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-07 08:16:50,646 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-07 08:16:50,646 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-07 08:16:50,647 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-07 08:16:50,648 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-07 08:16:50,649 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-07 08:16:50,649 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-07 08:16:50,650 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-07 08:16:50,650 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-07 08:16:50,651 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-07 08:16:50,651 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-07 08:16:50,652 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-11-07 08:16:50,666 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-07 08:16:50,675 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-07 08:16:50,675 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-07 08:16:50,676 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-07 08:16:50,677 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-07 08:16:50,677 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-07 08:16:50,677 INFO L138 SettingsManager]: * Use SBE=true [2021-11-07 08:16:50,677 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-07 08:16:50,677 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-07 08:16:50,677 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-07 08:16:50,678 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-07 08:16:50,678 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-07 08:16:50,678 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-07 08:16:50,679 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-07 08:16:50,679 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-07 08:16:50,679 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-07 08:16:50,679 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-07 08:16:50,679 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-07 08:16:50,679 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-07 08:16:50,680 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-07 08:16:50,680 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-07 08:16:50,680 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-07 08:16:50,680 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-07 08:16:50,680 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-07 08:16:50,680 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-07 08:16:50,680 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-07 08:16:50,681 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-07 08:16:50,681 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-07 08:16:50,681 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-07 08:16:50,681 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c12ad62b7b197015493bfb3c1dd9a5de2922d9b16e39f249961c276d8b82591b [2021-11-07 08:16:50,894 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-07 08:16:50,912 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-07 08:16:50,914 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-07 08:16:50,915 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-07 08:16:50,916 INFO L275 PluginConnector]: CDTParser initialized [2021-11-07 08:16:50,917 INFO L432 ainManager$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 [2021-11-07 08:16:50,980 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/abbf43452/8d03b4d021904bf0b8164d3eaf342187/FLAG258dcabaf [2021-11-07 08:16:51,507 INFO L306 CDTParser]: Found 1 translation units. [2021-11-07 08:16:51,508 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_array_list_ensure_capacity_harness.i [2021-11-07 08:16:51,535 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/abbf43452/8d03b4d021904bf0b8164d3eaf342187/FLAG258dcabaf [2021-11-07 08:16:51,753 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/abbf43452/8d03b4d021904bf0b8164d3eaf342187 [2021-11-07 08:16:51,755 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-07 08:16:51,758 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-07 08:16:51,761 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-07 08:16:51,761 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-07 08:16:51,763 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-07 08:16:51,764 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 08:16:51" (1/1) ... [2021-11-07 08:16:51,765 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@16faab55 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:16:51, skipping insertion in model container [2021-11-07 08:16:51,765 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 08:16:51" (1/1) ... [2021-11-07 08:16:51,770 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-07 08:16:51,844 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-07 08:16:52,093 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] [2021-11-07 08:16:52,099 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] [2021-11-07 08:16:52,117 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-07 08:16:52,122 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-07 08:16:52,631 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-07 08:16:52,678 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 08:16:52,679 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 08:16:52,681 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 08:16:52,682 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 08:16:52,682 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 08:16:52,690 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 08:16:52,691 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 08:16:52,692 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 08:16:52,692 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 08:16:52,693 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 08:16:52,694 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 08:16:52,694 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 08:16:52,694 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 08:16:52,902 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-07 08:16:52,903 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-07 08:16:52,904 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-07 08:16:52,907 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-07 08:16:52,909 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-07 08:16:52,909 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-07 08:16:52,911 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-07 08:16:52,912 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-07 08:16:52,913 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-07 08:16:52,914 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-07 08:16:53,032 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 08:16:53,032 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 08:16:53,035 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 08:16:53,051 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 08:16:53,103 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 08:16:53,105 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 08:16:53,133 INFO L203 MainTranslator]: Completed pre-run [2021-11-07 08:16:53,153 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] [2021-11-07 08:16:53,154 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] [2021-11-07 08:16:53,157 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-07 08:16:53,158 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-07 08:16:53,195 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-07 08:16:53,212 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 08:16:53,214 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 08:16:53,215 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 08:16:53,215 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 08:16:53,215 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 08:16:53,220 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 08:16:53,220 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 08:16:53,221 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 08:16:53,222 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 08:16:53,222 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 08:16:53,224 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 08:16:53,224 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 08:16:53,224 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 08:16:53,251 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-07 08:16:53,252 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-07 08:16:53,253 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-07 08:16:53,253 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-07 08:16:53,254 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-07 08:16:53,254 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-07 08:16:53,255 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-07 08:16:53,255 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-07 08:16:53,256 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-07 08:16:53,256 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-07 08:16:53,297 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 08:16:53,299 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 08:16:53,301 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 08:16:53,303 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 08:16:53,321 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 08:16:53,322 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 08:16:53,446 INFO L208 MainTranslator]: Completed translation [2021-11-07 08:16:53,446 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:16:53 WrapperNode [2021-11-07 08:16:53,447 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-07 08:16:53,447 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-07 08:16:53,448 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-07 08:16:53,448 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-07 08:16:53,455 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:16:53" (1/1) ... [2021-11-07 08:16:53,524 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:16:53" (1/1) ... [2021-11-07 08:16:53,610 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-07 08:16:53,611 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-07 08:16:53,612 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-07 08:16:53,612 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-07 08:16:53,619 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:16:53" (1/1) ... [2021-11-07 08:16:53,619 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:16:53" (1/1) ... [2021-11-07 08:16:53,635 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:16:53" (1/1) ... [2021-11-07 08:16:53,636 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:16:53" (1/1) ... [2021-11-07 08:16:53,688 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:16:53" (1/1) ... [2021-11-07 08:16:53,701 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:16:53" (1/1) ... [2021-11-07 08:16:53,712 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:16:53" (1/1) ... [2021-11-07 08:16:53,744 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-07 08:16:53,746 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-07 08:16:53,746 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-07 08:16:53,746 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-07 08:16:53,747 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:16:53" (1/1) ... [2021-11-07 08:16:53,752 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-07 08:16:53,759 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-07 08:16:53,802 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-07 08:16:53,833 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-07 08:16:53,850 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-07 08:16:53,851 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-07 08:16:53,851 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-07 08:16:53,851 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-07 08:16:53,851 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-07 08:16:53,852 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-07 08:16:53,852 INFO L130 BoogieDeclarations]: Found specification of procedure __builtin_uaddl_overflow [2021-11-07 08:16:53,852 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-07 08:16:53,852 INFO L130 BoogieDeclarations]: Found specification of procedure __builtin_umull_overflow [2021-11-07 08:16:53,852 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-07 08:16:53,852 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-07 08:16:53,852 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-07 08:16:53,852 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-07 08:17:01,782 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-07 08:17:01,785 INFO L299 CfgBuilder]: Removed 296 assume(true) statements. [2021-11-07 08:17:01,787 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 08:17:01 BoogieIcfgContainer [2021-11-07 08:17:01,788 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-07 08:17:01,789 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-07 08:17:01,789 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-07 08:17:01,791 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-07 08:17:01,792 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 08:16:51" (1/3) ... [2021-11-07 08:17:01,792 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6e2850a9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 08:17:01, skipping insertion in model container [2021-11-07 08:17:01,792 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:16:53" (2/3) ... [2021-11-07 08:17:01,793 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6e2850a9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 08:17:01, skipping insertion in model container [2021-11-07 08:17:01,793 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 08:17:01" (3/3) ... [2021-11-07 08:17:01,794 INFO L111 eAbstractionObserver]: Analyzing ICFG aws_array_list_ensure_capacity_harness.i [2021-11-07 08:17:01,798 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-07 08:17:01,798 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 19 error locations. [2021-11-07 08:17:01,839 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-07 08:17:01,846 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-11-07 08:17:01,847 INFO L340 AbstractCegarLoop]: Starting to check reachability of 19 error locations. [2021-11-07 08:17:01,871 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) [2021-11-07 08:17:01,877 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2021-11-07 08:17:01,877 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 08:17:01,877 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] [2021-11-07 08:17:01,878 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)] === [2021-11-07 08:17:01,881 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 08:17:01,882 INFO L85 PathProgramCache]: Analyzing trace with hash -649269600, now seen corresponding path program 1 times [2021-11-07 08:17:01,888 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 08:17:01,888 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [487665799] [2021-11-07 08:17:01,888 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 08:17:01,889 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 08:17:02,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 08:17:02,433 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 08:17:02,434 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 08:17:02,434 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [487665799] [2021-11-07 08:17:02,435 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [487665799] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 08:17:02,435 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 08:17:02,435 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-07 08:17:02,436 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1535700761] [2021-11-07 08:17:02,437 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 08:17:02,440 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-07 08:17:02,441 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 08:17:02,462 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-07 08:17:02,463 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-07 08:17:02,466 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) [2021-11-07 08:17:02,514 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 08:17:02,519 INFO L93 Difference]: Finished difference Result 694 states and 927 transitions. [2021-11-07 08:17:02,522 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-07 08:17:02,523 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 [2021-11-07 08:17:02,523 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 08:17:02,537 INFO L225 Difference]: With dead ends: 694 [2021-11-07 08:17:02,537 INFO L226 Difference]: Without dead ends: 341 [2021-11-07 08:17:02,543 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.05ms TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-07 08:17:02,545 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, 4.79ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.00ms IncrementalHoareTripleChecker+Time [2021-11-07 08:17:02,547 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 431 Invalid, 0 Unknown, 0 Unchecked, 4.79ms Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.00ms Time] [2021-11-07 08:17:02,560 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 341 states. [2021-11-07 08:17:02,594 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 341 to 341. [2021-11-07 08:17:02,595 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) [2021-11-07 08:17:02,596 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 341 states to 341 states and 419 transitions. [2021-11-07 08:17:02,597 INFO L78 Accepts]: Start accepts. Automaton has 341 states and 419 transitions. Word has length 34 [2021-11-07 08:17:02,597 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 08:17:02,598 INFO L470 AbstractCegarLoop]: Abstraction has 341 states and 419 transitions. [2021-11-07 08:17:02,598 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) [2021-11-07 08:17:02,598 INFO L276 IsEmpty]: Start isEmpty. Operand 341 states and 419 transitions. [2021-11-07 08:17:02,599 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2021-11-07 08:17:02,599 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 08:17:02,599 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] [2021-11-07 08:17:02,599 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-07 08:17:02,600 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)] === [2021-11-07 08:17:02,602 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 08:17:02,603 INFO L85 PathProgramCache]: Analyzing trace with hash 1819461034, now seen corresponding path program 1 times [2021-11-07 08:17:02,603 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 08:17:02,603 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1423324245] [2021-11-07 08:17:02,603 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 08:17:02,603 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 08:17:02,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 08:17:02,810 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 08:17:02,811 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 08:17:02,811 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1423324245] [2021-11-07 08:17:02,811 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1423324245] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 08:17:02,811 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 08:17:02,811 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-07 08:17:02,811 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1364434473] [2021-11-07 08:17:02,812 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 08:17:02,813 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-07 08:17:02,813 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 08:17:02,813 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-07 08:17:02,813 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 08:17:02,814 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) [2021-11-07 08:17:02,855 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 08:17:02,856 INFO L93 Difference]: Finished difference Result 669 states and 823 transitions. [2021-11-07 08:17:02,856 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-07 08:17:02,856 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 [2021-11-07 08:17:02,857 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 08:17:02,858 INFO L225 Difference]: With dead ends: 669 [2021-11-07 08:17:02,858 INFO L226 Difference]: Without dead ends: 342 [2021-11-07 08:17:02,859 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 18.58ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 08:17:02,859 INFO L933 BasicCegarLoop]: 418 mSDtfsCounter, 0 mSDsluCounter, 414 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 18.82ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 832 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 4.13ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 20.51ms IncrementalHoareTripleChecker+Time [2021-11-07 08:17:02,859 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 832 Invalid, 5 Unknown, 0 Unchecked, 4.13ms Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 20.51ms Time] [2021-11-07 08:17:02,860 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 342 states. [2021-11-07 08:17:02,876 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 342 to 342. [2021-11-07 08:17:02,884 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) [2021-11-07 08:17:02,885 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 342 states to 342 states and 420 transitions. [2021-11-07 08:17:02,885 INFO L78 Accepts]: Start accepts. Automaton has 342 states and 420 transitions. Word has length 34 [2021-11-07 08:17:02,885 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 08:17:02,886 INFO L470 AbstractCegarLoop]: Abstraction has 342 states and 420 transitions. [2021-11-07 08:17:02,886 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) [2021-11-07 08:17:02,886 INFO L276 IsEmpty]: Start isEmpty. Operand 342 states and 420 transitions. [2021-11-07 08:17:02,887 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2021-11-07 08:17:02,887 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 08:17:02,887 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] [2021-11-07 08:17:02,896 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-07 08:17:02,897 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)] === [2021-11-07 08:17:02,897 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 08:17:02,897 INFO L85 PathProgramCache]: Analyzing trace with hash 433257640, now seen corresponding path program 1 times [2021-11-07 08:17:02,897 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 08:17:02,898 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [544674705] [2021-11-07 08:17:02,898 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 08:17:02,898 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 08:17:02,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 08:17:03,088 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 08:17:03,088 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 08:17:03,088 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [544674705] [2021-11-07 08:17:03,088 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [544674705] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 08:17:03,088 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 08:17:03,088 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-07 08:17:03,088 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1113383883] [2021-11-07 08:17:03,089 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 08:17:03,089 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-07 08:17:03,089 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 08:17:03,089 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-07 08:17:03,090 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-07 08:17:03,090 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) [2021-11-07 08:17:03,521 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 08:17:03,521 INFO L93 Difference]: Finished difference Result 652 states and 800 transitions. [2021-11-07 08:17:03,522 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-07 08:17:03,522 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 [2021-11-07 08:17:03,522 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 08:17:03,523 INFO L225 Difference]: With dead ends: 652 [2021-11-07 08:17:03,523 INFO L226 Difference]: Without dead ends: 342 [2021-11-07 08:17:03,524 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 49.08ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-07 08:17:03,525 INFO L933 BasicCegarLoop]: 388 mSDtfsCounter, 485 mSDsluCounter, 260 mSDsCounter, 0 mSdLazyCounter, 102 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 337.85ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 485 SdHoareTripleChecker+Valid, 648 SdHoareTripleChecker+Invalid, 107 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 5.88ms SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 102 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 375.69ms IncrementalHoareTripleChecker+Time [2021-11-07 08:17:03,525 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [485 Valid, 648 Invalid, 107 Unknown, 0 Unchecked, 5.88ms Time], IncrementalHoareTripleChecker [5 Valid, 102 Invalid, 0 Unknown, 0 Unchecked, 375.69ms Time] [2021-11-07 08:17:03,526 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 342 states. [2021-11-07 08:17:03,537 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 342 to 342. [2021-11-07 08:17:03,537 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) [2021-11-07 08:17:03,538 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 342 states to 342 states and 417 transitions. [2021-11-07 08:17:03,538 INFO L78 Accepts]: Start accepts. Automaton has 342 states and 417 transitions. Word has length 34 [2021-11-07 08:17:03,539 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 08:17:03,539 INFO L470 AbstractCegarLoop]: Abstraction has 342 states and 417 transitions. [2021-11-07 08:17:03,539 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) [2021-11-07 08:17:03,539 INFO L276 IsEmpty]: Start isEmpty. Operand 342 states and 417 transitions. [2021-11-07 08:17:03,540 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2021-11-07 08:17:03,540 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 08:17:03,540 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] [2021-11-07 08:17:03,540 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-07 08:17:03,541 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)] === [2021-11-07 08:17:03,541 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 08:17:03,541 INFO L85 PathProgramCache]: Analyzing trace with hash -1339226978, now seen corresponding path program 1 times [2021-11-07 08:17:03,541 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 08:17:03,541 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [964356183] [2021-11-07 08:17:03,542 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 08:17:03,542 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 08:17:03,596 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-07 08:17:03,596 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1765384774] [2021-11-07 08:17:03,596 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 08:17:03,597 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-07 08:17:03,597 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-07 08:17:03,598 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-07 08:17:03,603 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-11-07 08:17:04,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 08:17:04,336 INFO L263 TraceCheckSpWp]: Trace formula consists of 2610 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-07 08:17:04,342 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 08:17:04,522 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 08:17:04,522 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-07 08:17:04,522 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 08:17:04,522 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [964356183] [2021-11-07 08:17:04,522 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-07 08:17:04,522 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1765384774] [2021-11-07 08:17:04,522 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1765384774] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 08:17:04,522 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 08:17:04,523 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-07 08:17:04,523 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1809975629] [2021-11-07 08:17:04,523 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 08:17:04,523 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-07 08:17:04,523 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 08:17:04,523 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-07 08:17:04,524 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-07 08:17:04,524 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) [2021-11-07 08:17:05,175 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 08:17:05,175 INFO L93 Difference]: Finished difference Result 713 states and 880 transitions. [2021-11-07 08:17:05,175 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-07 08:17:05,176 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 [2021-11-07 08:17:05,176 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 08:17:05,177 INFO L225 Difference]: With dead ends: 713 [2021-11-07 08:17:05,177 INFO L226 Difference]: Without dead ends: 402 [2021-11-07 08:17:05,178 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 48 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 52.19ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-07 08:17:05,178 INFO L933 BasicCegarLoop]: 459 mSDtfsCounter, 87 mSDsluCounter, 664 mSDsCounter, 0 mSdLazyCounter, 179 mSolverCounterSat, 45 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 545.95ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 87 SdHoareTripleChecker+Valid, 1123 SdHoareTripleChecker+Invalid, 224 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 5.29ms SdHoareTripleChecker+Time, 45 IncrementalHoareTripleChecker+Valid, 179 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 597.92ms IncrementalHoareTripleChecker+Time [2021-11-07 08:17:05,178 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [87 Valid, 1123 Invalid, 224 Unknown, 0 Unchecked, 5.29ms Time], IncrementalHoareTripleChecker [45 Valid, 179 Invalid, 0 Unknown, 0 Unchecked, 597.92ms Time] [2021-11-07 08:17:05,179 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 402 states. [2021-11-07 08:17:05,185 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 402 to 366. [2021-11-07 08:17:05,186 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) [2021-11-07 08:17:05,187 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 366 states to 366 states and 441 transitions. [2021-11-07 08:17:05,187 INFO L78 Accepts]: Start accepts. Automaton has 366 states and 441 transitions. Word has length 50 [2021-11-07 08:17:05,187 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 08:17:05,187 INFO L470 AbstractCegarLoop]: Abstraction has 366 states and 441 transitions. [2021-11-07 08:17:05,187 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) [2021-11-07 08:17:05,188 INFO L276 IsEmpty]: Start isEmpty. Operand 366 states and 441 transitions. [2021-11-07 08:17:05,188 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2021-11-07 08:17:05,188 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 08:17:05,189 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] [2021-11-07 08:17:05,214 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-11-07 08:17:05,407 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 [2021-11-07 08:17:05,408 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)] === [2021-11-07 08:17:05,408 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 08:17:05,408 INFO L85 PathProgramCache]: Analyzing trace with hash -521578528, now seen corresponding path program 1 times [2021-11-07 08:17:05,409 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 08:17:05,409 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2007643346] [2021-11-07 08:17:05,409 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 08:17:05,409 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 08:17:05,465 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-07 08:17:05,465 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [859908451] [2021-11-07 08:17:05,465 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 08:17:05,467 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-07 08:17:05,467 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-07 08:17:05,468 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-07 08:17:05,469 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-11-07 08:17:06,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 08:17:06,092 INFO L263 TraceCheckSpWp]: Trace formula consists of 2615 conjuncts, 9 conjunts are in the unsatisfiable core [2021-11-07 08:17:06,096 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 08:17:06,484 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 08:17:06,484 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-07 08:17:06,484 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 08:17:06,484 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2007643346] [2021-11-07 08:17:06,484 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-07 08:17:06,484 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [859908451] [2021-11-07 08:17:06,485 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [859908451] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 08:17:06,485 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 08:17:06,485 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-07 08:17:06,485 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1097404388] [2021-11-07 08:17:06,485 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 08:17:06,485 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-07 08:17:06,485 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 08:17:06,486 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-07 08:17:06,486 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-11-07 08:17:06,486 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) [2021-11-07 08:17:07,146 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 08:17:07,146 INFO L93 Difference]: Finished difference Result 657 states and 790 transitions. [2021-11-07 08:17:07,147 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-07 08:17:07,147 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 [2021-11-07 08:17:07,147 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 08:17:07,148 INFO L225 Difference]: With dead ends: 657 [2021-11-07 08:17:07,148 INFO L226 Difference]: Without dead ends: 366 [2021-11-07 08:17:07,149 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 192.02ms TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2021-11-07 08:17:07,149 INFO L933 BasicCegarLoop]: 323 mSDtfsCounter, 1395 mSDsluCounter, 144 mSDsCounter, 0 mSdLazyCounter, 135 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 463.61ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 1395 SdHoareTripleChecker+Valid, 467 SdHoareTripleChecker+Invalid, 156 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 6.51ms SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 135 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 505.84ms IncrementalHoareTripleChecker+Time [2021-11-07 08:17:07,150 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1395 Valid, 467 Invalid, 156 Unknown, 0 Unchecked, 6.51ms Time], IncrementalHoareTripleChecker [21 Valid, 135 Invalid, 0 Unknown, 0 Unchecked, 505.84ms Time] [2021-11-07 08:17:07,150 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 366 states. [2021-11-07 08:17:07,156 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 366 to 366. [2021-11-07 08:17:07,157 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) [2021-11-07 08:17:07,158 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 366 states to 366 states and 435 transitions. [2021-11-07 08:17:07,158 INFO L78 Accepts]: Start accepts. Automaton has 366 states and 435 transitions. Word has length 50 [2021-11-07 08:17:07,158 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 08:17:07,158 INFO L470 AbstractCegarLoop]: Abstraction has 366 states and 435 transitions. [2021-11-07 08:17:07,158 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) [2021-11-07 08:17:07,158 INFO L276 IsEmpty]: Start isEmpty. Operand 366 states and 435 transitions. [2021-11-07 08:17:07,159 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2021-11-07 08:17:07,159 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 08:17:07,160 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] [2021-11-07 08:17:07,190 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2021-11-07 08:17:07,379 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 [2021-11-07 08:17:07,380 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)] === [2021-11-07 08:17:07,380 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 08:17:07,380 INFO L85 PathProgramCache]: Analyzing trace with hash -1101114756, now seen corresponding path program 1 times [2021-11-07 08:17:07,380 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 08:17:07,380 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [551969466] [2021-11-07 08:17:07,380 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 08:17:07,380 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 08:17:07,439 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-07 08:17:07,440 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1967126001] [2021-11-07 08:17:07,440 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 08:17:07,440 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-07 08:17:07,440 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-07 08:17:07,452 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-07 08:17:07,453 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-11-07 08:17:08,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 08:17:08,135 INFO L263 TraceCheckSpWp]: Trace formula consists of 2710 conjuncts, 9 conjunts are in the unsatisfiable core [2021-11-07 08:17:08,142 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 08:17:08,673 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 08:17:08,673 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-07 08:17:08,673 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 08:17:08,674 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [551969466] [2021-11-07 08:17:08,674 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-07 08:17:08,674 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1967126001] [2021-11-07 08:17:08,674 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1967126001] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 08:17:08,674 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 08:17:08,674 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-07 08:17:08,674 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1649086624] [2021-11-07 08:17:08,674 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 08:17:08,675 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-07 08:17:08,675 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 08:17:08,675 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-07 08:17:08,675 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-11-07 08:17:08,675 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) [2021-11-07 08:17:09,337 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 08:17:09,337 INFO L93 Difference]: Finished difference Result 595 states and 698 transitions. [2021-11-07 08:17:09,338 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-07 08:17:09,338 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 [2021-11-07 08:17:09,338 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 08:17:09,339 INFO L225 Difference]: With dead ends: 595 [2021-11-07 08:17:09,339 INFO L226 Difference]: Without dead ends: 366 [2021-11-07 08:17:09,340 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 52 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 265.38ms TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2021-11-07 08:17:09,340 INFO L933 BasicCegarLoop]: 302 mSDtfsCounter, 1796 mSDsluCounter, 101 mSDsCounter, 0 mSdLazyCounter, 137 mSolverCounterSat, 54 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 444.55ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 1796 SdHoareTripleChecker+Valid, 403 SdHoareTripleChecker+Invalid, 191 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 5.16ms SdHoareTripleChecker+Time, 54 IncrementalHoareTripleChecker+Valid, 137 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 483.20ms IncrementalHoareTripleChecker+Time [2021-11-07 08:17:09,340 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1796 Valid, 403 Invalid, 191 Unknown, 0 Unchecked, 5.16ms Time], IncrementalHoareTripleChecker [54 Valid, 137 Invalid, 0 Unknown, 0 Unchecked, 483.20ms Time] [2021-11-07 08:17:09,341 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 366 states. [2021-11-07 08:17:09,347 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 366 to 366. [2021-11-07 08:17:09,347 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) [2021-11-07 08:17:09,348 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 366 states to 366 states and 432 transitions. [2021-11-07 08:17:09,348 INFO L78 Accepts]: Start accepts. Automaton has 366 states and 432 transitions. Word has length 58 [2021-11-07 08:17:09,348 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 08:17:09,349 INFO L470 AbstractCegarLoop]: Abstraction has 366 states and 432 transitions. [2021-11-07 08:17:09,349 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) [2021-11-07 08:17:09,349 INFO L276 IsEmpty]: Start isEmpty. Operand 366 states and 432 transitions. [2021-11-07 08:17:09,350 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2021-11-07 08:17:09,350 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 08:17:09,350 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] [2021-11-07 08:17:09,389 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2021-11-07 08:17:09,550 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 [2021-11-07 08:17:09,551 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)] === [2021-11-07 08:17:09,551 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 08:17:09,551 INFO L85 PathProgramCache]: Analyzing trace with hash -997775264, now seen corresponding path program 1 times [2021-11-07 08:17:09,551 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 08:17:09,551 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [978722603] [2021-11-07 08:17:09,551 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 08:17:09,552 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 08:17:09,627 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-07 08:17:09,627 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1452139137] [2021-11-07 08:17:09,627 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 08:17:09,627 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-07 08:17:09,628 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-07 08:17:09,628 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-07 08:17:09,630 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2021-11-07 08:17:10,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 08:17:10,321 INFO L263 TraceCheckSpWp]: Trace formula consists of 2805 conjuncts, 7 conjunts are in the unsatisfiable core [2021-11-07 08:17:10,325 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 08:17:10,544 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 08:17:10,544 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-07 08:17:10,544 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 08:17:10,544 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [978722603] [2021-11-07 08:17:10,544 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-07 08:17:10,544 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1452139137] [2021-11-07 08:17:10,544 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1452139137] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 08:17:10,544 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 08:17:10,544 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-07 08:17:10,544 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [728399733] [2021-11-07 08:17:10,545 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 08:17:10,545 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-07 08:17:10,545 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 08:17:10,545 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-07 08:17:10,546 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-07 08:17:10,546 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) [2021-11-07 08:17:10,691 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 08:17:10,691 INFO L93 Difference]: Finished difference Result 864 states and 1013 transitions. [2021-11-07 08:17:10,692 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-07 08:17:10,692 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 [2021-11-07 08:17:10,692 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 08:17:10,694 INFO L225 Difference]: With dead ends: 864 [2021-11-07 08:17:10,694 INFO L226 Difference]: Without dead ends: 630 [2021-11-07 08:17:10,695 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 62 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 117.62ms TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-11-07 08:17:10,695 INFO L933 BasicCegarLoop]: 640 mSDtfsCounter, 581 mSDsluCounter, 1445 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 57.22ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 581 SdHoareTripleChecker+Valid, 2085 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 2.63ms SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 60.03ms IncrementalHoareTripleChecker+Time [2021-11-07 08:17:10,696 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [581 Valid, 2085 Invalid, 16 Unknown, 0 Unchecked, 2.63ms Time], IncrementalHoareTripleChecker [2 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 60.03ms Time] [2021-11-07 08:17:10,697 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 630 states. [2021-11-07 08:17:10,706 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 630 to 369. [2021-11-07 08:17:10,706 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) [2021-11-07 08:17:10,708 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 369 states to 369 states and 435 transitions. [2021-11-07 08:17:10,708 INFO L78 Accepts]: Start accepts. Automaton has 369 states and 435 transitions. Word has length 66 [2021-11-07 08:17:10,708 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 08:17:10,708 INFO L470 AbstractCegarLoop]: Abstraction has 369 states and 435 transitions. [2021-11-07 08:17:10,708 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) [2021-11-07 08:17:10,709 INFO L276 IsEmpty]: Start isEmpty. Operand 369 states and 435 transitions. [2021-11-07 08:17:10,709 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2021-11-07 08:17:10,709 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 08:17:10,709 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] [2021-11-07 08:17:10,733 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2021-11-07 08:17:10,923 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 [2021-11-07 08:17:10,923 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)] === [2021-11-07 08:17:10,924 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 08:17:10,924 INFO L85 PathProgramCache]: Analyzing trace with hash -843218652, now seen corresponding path program 1 times [2021-11-07 08:17:10,924 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 08:17:10,924 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [701378970] [2021-11-07 08:17:10,924 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 08:17:10,924 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 08:17:10,984 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-07 08:17:10,984 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [729157262] [2021-11-07 08:17:10,984 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 08:17:10,985 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-07 08:17:10,985 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-07 08:17:10,986 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-07 08:17:10,987 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2021-11-07 08:23:05,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 08:23:05,876 INFO L263 TraceCheckSpWp]: Trace formula consists of 2814 conjuncts, 299 conjunts are in the unsatisfiable core [2021-11-07 08:23:05,882 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 08:23:05,940 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 [2021-11-07 08:23:06,217 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-07 08:23:06,218 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 [2021-11-07 08:23:06,227 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-07 08:23:06,228 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 [2021-11-07 08:23:06,443 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 [2021-11-07 08:23:06,724 INFO L354 Elim1Store]: treesize reduction 64, result has 19.0 percent of original size [2021-11-07 08:23:06,724 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 [2021-11-07 08:23:07,050 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 08:23:07,051 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 [2021-11-07 08:23:07,975 INFO L354 Elim1Store]: treesize reduction 48, result has 23.8 percent of original size [2021-11-07 08:23:07,976 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 [2021-11-07 08:23:08,750 INFO L354 Elim1Store]: treesize reduction 162, result has 21.0 percent of original size [2021-11-07 08:23:08,750 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 [2021-11-07 08:23:12,316 INFO L354 Elim1Store]: treesize reduction 238, result has 15.0 percent of original size [2021-11-07 08:23:12,316 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 [2021-11-07 08:23:16,189 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 08:23:16,193 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 08:23:16,197 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 08:23:16,203 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 08:23:16,206 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 08:23:16,209 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 08:23:16,311 INFO L354 Elim1Store]: treesize reduction 14, result has 58.8 percent of original size [2021-11-07 08:23:16,311 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 [2021-11-07 08:23:29,698 INFO L354 Elim1Store]: treesize reduction 150, result has 30.6 percent of original size [2021-11-07 08:23:29,699 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