./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/aws-c-common/aws_array_list_swap_contents_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_swap_contents_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 877e83a63a602219ce02028b5212cf6c29aa8f33a031ee39d52c3c671213dc91 --- Real Ultimate output --- This is Ultimate 0.2.1-wip.dd.seqcomp-5b36d44 [2021-11-07 08:30:55,710 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-07 08:30:55,712 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-07 08:30:55,758 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-07 08:30:55,759 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-07 08:30:55,768 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-07 08:30:55,772 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-07 08:30:55,774 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-07 08:30:55,776 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-07 08:30:55,779 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-07 08:30:55,780 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-07 08:30:55,781 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-07 08:30:55,781 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-07 08:30:55,783 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-07 08:30:55,784 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-07 08:30:55,787 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-07 08:30:55,788 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-07 08:30:55,788 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-07 08:30:55,791 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-07 08:30:55,795 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-07 08:30:55,796 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-07 08:30:55,797 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-07 08:30:55,798 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-07 08:30:55,799 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-07 08:30:55,803 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-07 08:30:55,804 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-07 08:30:55,804 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-07 08:30:55,805 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-07 08:30:55,805 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-07 08:30:55,806 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-07 08:30:55,806 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-07 08:30:55,806 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-07 08:30:55,808 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-07 08:30:55,808 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-07 08:30:55,809 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-07 08:30:55,809 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-07 08:30:55,810 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-07 08:30:55,810 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-07 08:30:55,810 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-07 08:30:55,810 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-07 08:30:55,811 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-07 08:30:55,812 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-11-07 08:30:55,834 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-07 08:30:55,835 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-07 08:30:55,835 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-07 08:30:55,835 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-07 08:30:55,836 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-07 08:30:55,836 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-07 08:30:55,837 INFO L138 SettingsManager]: * Use SBE=true [2021-11-07 08:30:55,837 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-07 08:30:55,837 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-07 08:30:55,837 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-07 08:30:55,838 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-07 08:30:55,838 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-07 08:30:55,838 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-07 08:30:55,838 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-07 08:30:55,838 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-07 08:30:55,838 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-07 08:30:55,838 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-07 08:30:55,839 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-07 08:30:55,839 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-07 08:30:55,839 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-07 08:30:55,839 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-07 08:30:55,839 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-07 08:30:55,839 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-07 08:30:55,839 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-07 08:30:55,840 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-07 08:30:55,840 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-07 08:30:55,840 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-07 08:30:55,840 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-07 08:30:55,840 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-07 08:30:55,840 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 877e83a63a602219ce02028b5212cf6c29aa8f33a031ee39d52c3c671213dc91 [2021-11-07 08:30:56,006 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-07 08:30:56,025 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-07 08:30:56,027 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-07 08:30:56,028 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-07 08:30:56,028 INFO L275 PluginConnector]: CDTParser initialized [2021-11-07 08:30:56,029 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/aws-c-common/aws_array_list_swap_contents_harness.i [2021-11-07 08:30:56,087 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b067fd785/48cf0e50390846fd9fcd12ddd073a526/FLAGe0ea187a5 [2021-11-07 08:30:56,687 INFO L306 CDTParser]: Found 1 translation units. [2021-11-07 08:30:56,688 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_array_list_swap_contents_harness.i [2021-11-07 08:30:56,712 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b067fd785/48cf0e50390846fd9fcd12ddd073a526/FLAGe0ea187a5 [2021-11-07 08:30:57,125 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b067fd785/48cf0e50390846fd9fcd12ddd073a526 [2021-11-07 08:30:57,127 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-07 08:30:57,128 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-07 08:30:57,129 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-07 08:30:57,129 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-07 08:30:57,131 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-07 08:30:57,132 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 08:30:57" (1/1) ... [2021-11-07 08:30:57,132 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5588cee3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:30:57, skipping insertion in model container [2021-11-07 08:30:57,133 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 08:30:57" (1/1) ... [2021-11-07 08:30:57,137 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-07 08:30:57,208 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-07 08:30:57,432 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_swap_contents_harness.i[4502,4515] [2021-11-07 08:30:57,437 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_swap_contents_harness.i[4562,4575] [2021-11-07 08:30:57,451 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-07 08:30:57,454 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-07 08:30:57,878 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-07 08:30:57,919 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 08:30:57,919 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 08:30:57,920 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 08:30:57,920 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 08:30:57,921 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 08:30:57,927 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 08:30:57,928 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 08:30:57,929 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 08:30:57,929 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 08:30:57,930 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 08:30:57,930 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 08:30:57,931 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 08:30:57,931 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 08:30:58,091 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-07 08:30:58,092 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-07 08:30:58,092 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-07 08:30:58,093 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-07 08:30:58,094 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-07 08:30:58,094 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-07 08:30:58,095 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-07 08:30:58,095 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-07 08:30:58,096 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-07 08:30:58,096 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-07 08:30:58,199 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 08:30:58,203 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 08:30:58,240 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 08:30:58,265 INFO L203 MainTranslator]: Completed pre-run [2021-11-07 08:30:58,280 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_swap_contents_harness.i[4502,4515] [2021-11-07 08:30:58,281 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_swap_contents_harness.i[4562,4575] [2021-11-07 08:30:58,282 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-07 08:30:58,282 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-07 08:30:58,312 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-07 08:30:58,332 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 08:30:58,335 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 08:30:58,335 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 08:30:58,336 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 08:30:58,336 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 08:30:58,341 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 08:30:58,341 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 08:30:58,342 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 08:30:58,342 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 08:30:58,342 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 08:30:58,343 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 08:30:58,345 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 08:30:58,345 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 08:30:58,366 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-07 08:30:58,367 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-07 08:30:58,367 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-07 08:30:58,368 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-07 08:30:58,368 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-07 08:30:58,368 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-07 08:30:58,369 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-07 08:30:58,369 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-07 08:30:58,369 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-07 08:30:58,369 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-07 08:30:58,382 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 08:30:58,388 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 08:30:58,410 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 08:30:58,541 INFO L208 MainTranslator]: Completed translation [2021-11-07 08:30:58,541 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:30:58 WrapperNode [2021-11-07 08:30:58,541 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-07 08:30:58,542 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-07 08:30:58,542 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-07 08:30:58,542 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-07 08:30:58,547 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:30:58" (1/1) ... [2021-11-07 08:30:58,615 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:30:58" (1/1) ... [2021-11-07 08:30:58,705 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-07 08:30:58,706 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-07 08:30:58,706 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-07 08:30:58,706 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-07 08:30:58,711 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:30:58" (1/1) ... [2021-11-07 08:30:58,712 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:30:58" (1/1) ... [2021-11-07 08:30:58,724 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:30:58" (1/1) ... [2021-11-07 08:30:58,725 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:30:58" (1/1) ... [2021-11-07 08:30:58,769 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:30:58" (1/1) ... [2021-11-07 08:30:58,783 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:30:58" (1/1) ... [2021-11-07 08:30:58,791 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:30:58" (1/1) ... [2021-11-07 08:30:58,804 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-07 08:30:58,807 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-07 08:30:58,807 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-07 08:30:58,807 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-07 08:30:58,808 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:30:58" (1/1) ... [2021-11-07 08:30:58,812 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-07 08:30:58,819 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-07 08:30:58,829 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 08:30:58,838 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 08:30:58,857 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-07 08:30:58,858 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-07 08:30:58,858 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-07 08:30:58,858 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-07 08:30:58,859 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-07 08:30:58,859 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-07 08:30:58,859 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-07 08:30:58,859 INFO L130 BoogieDeclarations]: Found specification of procedure __builtin_umull_overflow [2021-11-07 08:30:58,859 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-07 08:30:58,859 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-07 08:30:58,859 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-07 08:30:58,860 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-07 08:31:05,898 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-07 08:31:05,898 INFO L299 CfgBuilder]: Removed 218 assume(true) statements. [2021-11-07 08:31:05,900 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 08:31:05 BoogieIcfgContainer [2021-11-07 08:31:05,900 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-07 08:31:05,901 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-07 08:31:05,901 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-07 08:31:05,903 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-07 08:31:05,904 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 08:30:57" (1/3) ... [2021-11-07 08:31:05,904 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2f656418 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 08:31:05, skipping insertion in model container [2021-11-07 08:31:05,904 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:30:58" (2/3) ... [2021-11-07 08:31:05,904 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2f656418 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 08:31:05, skipping insertion in model container [2021-11-07 08:31:05,905 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 08:31:05" (3/3) ... [2021-11-07 08:31:05,906 INFO L111 eAbstractionObserver]: Analyzing ICFG aws_array_list_swap_contents_harness.i [2021-11-07 08:31:05,909 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-07 08:31:05,909 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 16 error locations. [2021-11-07 08:31:05,939 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-07 08:31:05,943 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 08:31:05,943 INFO L340 AbstractCegarLoop]: Starting to check reachability of 16 error locations. [2021-11-07 08:31:05,955 INFO L276 IsEmpty]: Start isEmpty. Operand has 261 states, 244 states have (on average 1.4385245901639345) internal successors, (351), 260 states have internal predecessors, (351), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 08:31:05,961 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2021-11-07 08:31:05,961 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 08:31:05,961 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] [2021-11-07 08:31:05,962 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2021-11-07 08:31:05,965 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 08:31:05,966 INFO L85 PathProgramCache]: Analyzing trace with hash -1330632047, now seen corresponding path program 1 times [2021-11-07 08:31:05,974 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 08:31:05,974 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1400360114] [2021-11-07 08:31:05,974 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 08:31:05,975 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 08:31:06,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 08:31:06,498 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 08:31:06,499 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 08:31:06,499 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1400360114] [2021-11-07 08:31:06,499 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1400360114] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 08:31:06,500 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 08:31:06,500 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-07 08:31:06,501 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [258549375] [2021-11-07 08:31:06,502 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 08:31:06,505 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-07 08:31:06,506 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 08:31:06,526 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-07 08:31:06,526 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-07 08:31:06,530 INFO L87 Difference]: Start difference. First operand has 261 states, 244 states have (on average 1.4385245901639345) internal successors, (351), 260 states have internal predecessors, (351), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 31.0) internal successors, (62), 2 states have internal predecessors, (62), 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 08:31:06,570 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 08:31:06,570 INFO L93 Difference]: Finished difference Result 518 states and 697 transitions. [2021-11-07 08:31:06,571 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-07 08:31:06,572 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 31.0) internal successors, (62), 2 states have internal predecessors, (62), 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 62 [2021-11-07 08:31:06,572 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 08:31:06,581 INFO L225 Difference]: With dead ends: 518 [2021-11-07 08:31:06,581 INFO L226 Difference]: Without dead ends: 254 [2021-11-07 08:31:06,587 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.04ms TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-07 08:31:06,590 INFO L933 BasicCegarLoop]: 314 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, 314 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 3.66ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.00ms IncrementalHoareTripleChecker+Time [2021-11-07 08:31:06,595 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 314 Invalid, 0 Unknown, 0 Unchecked, 3.66ms Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.00ms Time] [2021-11-07 08:31:06,608 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 254 states. [2021-11-07 08:31:06,637 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 254 to 254. [2021-11-07 08:31:06,638 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 254 states, 238 states have (on average 1.2773109243697478) internal successors, (304), 253 states have internal predecessors, (304), 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 08:31:06,639 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 254 states to 254 states and 304 transitions. [2021-11-07 08:31:06,640 INFO L78 Accepts]: Start accepts. Automaton has 254 states and 304 transitions. Word has length 62 [2021-11-07 08:31:06,640 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 08:31:06,640 INFO L470 AbstractCegarLoop]: Abstraction has 254 states and 304 transitions. [2021-11-07 08:31:06,640 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 31.0) internal successors, (62), 2 states have internal predecessors, (62), 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 08:31:06,640 INFO L276 IsEmpty]: Start isEmpty. Operand 254 states and 304 transitions. [2021-11-07 08:31:06,642 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2021-11-07 08:31:06,642 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 08:31:06,642 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] [2021-11-07 08:31:06,642 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-07 08:31:06,642 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2021-11-07 08:31:06,643 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 08:31:06,643 INFO L85 PathProgramCache]: Analyzing trace with hash 1348565053, now seen corresponding path program 1 times [2021-11-07 08:31:06,643 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 08:31:06,643 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1754879990] [2021-11-07 08:31:06,644 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 08:31:06,644 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 08:31:06,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 08:31:06,832 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 08:31:06,832 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 08:31:06,832 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1754879990] [2021-11-07 08:31:06,832 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1754879990] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 08:31:06,832 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 08:31:06,832 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-07 08:31:06,833 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1986963221] [2021-11-07 08:31:06,833 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 08:31:06,834 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-07 08:31:06,834 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 08:31:06,835 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-07 08:31:06,835 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 08:31:06,835 INFO L87 Difference]: Start difference. First operand 254 states and 304 transitions. Second operand has 3 states, 3 states have (on average 20.666666666666668) internal successors, (62), 3 states have internal predecessors, (62), 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 08:31:06,894 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 08:31:06,895 INFO L93 Difference]: Finished difference Result 496 states and 595 transitions. [2021-11-07 08:31:06,898 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-07 08:31:06,898 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 20.666666666666668) internal successors, (62), 3 states have internal predecessors, (62), 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 62 [2021-11-07 08:31:06,899 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 08:31:06,900 INFO L225 Difference]: With dead ends: 496 [2021-11-07 08:31:06,901 INFO L226 Difference]: Without dead ends: 256 [2021-11-07 08:31:06,902 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 11.37ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 08:31:06,902 INFO L933 BasicCegarLoop]: 303 mSDtfsCounter, 0 mSDsluCounter, 294 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 38.68ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 597 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 3.04ms SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 42.81ms IncrementalHoareTripleChecker+Time [2021-11-07 08:31:06,903 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 597 Invalid, 13 Unknown, 0 Unchecked, 3.04ms Time], IncrementalHoareTripleChecker [2 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 42.81ms Time] [2021-11-07 08:31:06,903 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 256 states. [2021-11-07 08:31:06,910 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 256 to 256. [2021-11-07 08:31:06,910 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 256 states, 240 states have (on average 1.275) internal successors, (306), 255 states have internal predecessors, (306), 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 08:31:06,911 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 256 states to 256 states and 306 transitions. [2021-11-07 08:31:06,911 INFO L78 Accepts]: Start accepts. Automaton has 256 states and 306 transitions. Word has length 62 [2021-11-07 08:31:06,911 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 08:31:06,911 INFO L470 AbstractCegarLoop]: Abstraction has 256 states and 306 transitions. [2021-11-07 08:31:06,912 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 20.666666666666668) internal successors, (62), 3 states have internal predecessors, (62), 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 08:31:06,912 INFO L276 IsEmpty]: Start isEmpty. Operand 256 states and 306 transitions. [2021-11-07 08:31:06,913 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2021-11-07 08:31:06,913 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 08:31:06,913 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] [2021-11-07 08:31:06,913 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-07 08:31:06,914 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2021-11-07 08:31:06,914 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 08:31:06,914 INFO L85 PathProgramCache]: Analyzing trace with hash 87647803, now seen corresponding path program 1 times [2021-11-07 08:31:06,914 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 08:31:06,914 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1950164522] [2021-11-07 08:31:06,914 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 08:31:06,915 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 08:31:06,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 08:31:07,129 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 08:31:07,129 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 08:31:07,129 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1950164522] [2021-11-07 08:31:07,129 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1950164522] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 08:31:07,129 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 08:31:07,129 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-07 08:31:07,130 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [749521840] [2021-11-07 08:31:07,130 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 08:31:07,130 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-07 08:31:07,130 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 08:31:07,130 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-07 08:31:07,130 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-07 08:31:07,131 INFO L87 Difference]: Start difference. First operand 256 states and 306 transitions. Second operand has 4 states, 4 states have (on average 15.5) internal successors, (62), 4 states have internal predecessors, (62), 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 08:31:07,579 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 08:31:07,579 INFO L93 Difference]: Finished difference Result 480 states and 572 transitions. [2021-11-07 08:31:07,580 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-07 08:31:07,580 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 15.5) internal successors, (62), 4 states have internal predecessors, (62), 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 62 [2021-11-07 08:31:07,580 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 08:31:07,581 INFO L225 Difference]: With dead ends: 480 [2021-11-07 08:31:07,595 INFO L226 Difference]: Without dead ends: 256 [2021-11-07 08:31:07,596 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 30.36ms TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-07 08:31:07,597 INFO L933 BasicCegarLoop]: 281 mSDtfsCounter, 351 mSDsluCounter, 185 mSDsCounter, 0 mSdLazyCounter, 77 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 383.91ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 351 SdHoareTripleChecker+Valid, 466 SdHoareTripleChecker+Invalid, 79 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 4.15ms SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 77 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 426.01ms IncrementalHoareTripleChecker+Time [2021-11-07 08:31:07,597 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [351 Valid, 466 Invalid, 79 Unknown, 0 Unchecked, 4.15ms Time], IncrementalHoareTripleChecker [2 Valid, 77 Invalid, 0 Unknown, 0 Unchecked, 426.01ms Time] [2021-11-07 08:31:07,598 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 256 states. [2021-11-07 08:31:07,604 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 256 to 256. [2021-11-07 08:31:07,605 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 256 states, 240 states have (on average 1.2666666666666666) internal successors, (304), 255 states have internal predecessors, (304), 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 08:31:07,605 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 256 states to 256 states and 304 transitions. [2021-11-07 08:31:07,606 INFO L78 Accepts]: Start accepts. Automaton has 256 states and 304 transitions. Word has length 62 [2021-11-07 08:31:07,606 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 08:31:07,606 INFO L470 AbstractCegarLoop]: Abstraction has 256 states and 304 transitions. [2021-11-07 08:31:07,606 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 15.5) internal successors, (62), 4 states have internal predecessors, (62), 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 08:31:07,606 INFO L276 IsEmpty]: Start isEmpty. Operand 256 states and 304 transitions. [2021-11-07 08:31:07,607 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2021-11-07 08:31:07,608 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 08:31:07,608 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, 1, 1] [2021-11-07 08:31:07,608 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-07 08:31:07,608 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2021-11-07 08:31:07,608 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 08:31:07,609 INFO L85 PathProgramCache]: Analyzing trace with hash -1267963945, now seen corresponding path program 1 times [2021-11-07 08:31:07,609 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 08:31:07,609 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [94282927] [2021-11-07 08:31:07,609 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 08:31:07,609 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 08:31:07,681 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-07 08:31:07,681 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1719960957] [2021-11-07 08:31:07,681 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 08:31:07,681 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-07 08:31:07,682 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-07 08:31:07,683 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 08:31:07,684 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 08:31:08,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 08:31:08,347 INFO L263 TraceCheckSpWp]: Trace formula consists of 2678 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-07 08:31:08,354 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 08:31:08,833 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 08:31:08,833 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-07 08:31:08,833 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 08:31:08,833 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [94282927] [2021-11-07 08:31:08,833 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-07 08:31:08,834 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1719960957] [2021-11-07 08:31:08,834 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1719960957] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 08:31:08,834 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 08:31:08,834 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-07 08:31:08,834 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1265709067] [2021-11-07 08:31:08,834 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 08:31:08,834 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-07 08:31:08,834 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 08:31:08,835 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-07 08:31:08,835 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-07 08:31:08,835 INFO L87 Difference]: Start difference. First operand 256 states and 304 transitions. Second operand has 5 states, 5 states have (on average 14.0) internal successors, (70), 4 states have internal predecessors, (70), 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 08:31:09,690 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 08:31:09,691 INFO L93 Difference]: Finished difference Result 447 states and 528 transitions. [2021-11-07 08:31:09,691 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-07 08:31:09,692 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.0) internal successors, (70), 4 states have internal predecessors, (70), 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 70 [2021-11-07 08:31:09,692 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 08:31:09,693 INFO L225 Difference]: With dead ends: 447 [2021-11-07 08:31:09,693 INFO L226 Difference]: Without dead ends: 256 [2021-11-07 08:31:09,693 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 71 GetRequests, 66 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 89.68ms TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-11-07 08:31:09,694 INFO L933 BasicCegarLoop]: 267 mSDtfsCounter, 696 mSDsluCounter, 120 mSDsCounter, 0 mSdLazyCounter, 84 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 737.13ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 696 SdHoareTripleChecker+Valid, 387 SdHoareTripleChecker+Invalid, 86 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 3.52ms SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 84 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 793.38ms IncrementalHoareTripleChecker+Time [2021-11-07 08:31:09,694 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [696 Valid, 387 Invalid, 86 Unknown, 0 Unchecked, 3.52ms Time], IncrementalHoareTripleChecker [2 Valid, 84 Invalid, 0 Unknown, 0 Unchecked, 793.38ms Time] [2021-11-07 08:31:09,695 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 256 states. [2021-11-07 08:31:09,705 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 256 to 256. [2021-11-07 08:31:09,705 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 256 states, 240 states have (on average 1.2583333333333333) internal successors, (302), 255 states have internal predecessors, (302), 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 08:31:09,706 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 256 states to 256 states and 302 transitions. [2021-11-07 08:31:09,706 INFO L78 Accepts]: Start accepts. Automaton has 256 states and 302 transitions. Word has length 70 [2021-11-07 08:31:09,706 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 08:31:09,706 INFO L470 AbstractCegarLoop]: Abstraction has 256 states and 302 transitions. [2021-11-07 08:31:09,707 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.0) internal successors, (70), 4 states have internal predecessors, (70), 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 08:31:09,707 INFO L276 IsEmpty]: Start isEmpty. Operand 256 states and 302 transitions. [2021-11-07 08:31:09,707 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2021-11-07 08:31:09,708 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 08:31:09,708 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 08:31:09,733 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 08:31:09,919 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 08:31:09,920 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2021-11-07 08:31:09,920 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 08:31:09,920 INFO L85 PathProgramCache]: Analyzing trace with hash -187050949, now seen corresponding path program 1 times [2021-11-07 08:31:09,920 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 08:31:09,920 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1342111686] [2021-11-07 08:31:09,920 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 08:31:09,921 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 08:31:09,979 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-07 08:31:09,980 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2004599325] [2021-11-07 08:31:09,980 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 08:31:09,980 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-07 08:31:09,980 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-07 08:31:09,981 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 08:31:09,982 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 08:31:10,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 08:31:10,639 INFO L263 TraceCheckSpWp]: Trace formula consists of 2773 conjuncts, 7 conjunts are in the unsatisfiable core [2021-11-07 08:31:10,643 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 08:31:11,127 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 08:31:11,127 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-07 08:31:11,127 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 08:31:11,128 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1342111686] [2021-11-07 08:31:11,128 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-07 08:31:11,128 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2004599325] [2021-11-07 08:31:11,128 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2004599325] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 08:31:11,128 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 08:31:11,128 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-07 08:31:11,128 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1647623978] [2021-11-07 08:31:11,129 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 08:31:11,139 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-07 08:31:11,139 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 08:31:11,139 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-07 08:31:11,139 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-11-07 08:31:11,140 INFO L87 Difference]: Start difference. First operand 256 states and 302 transitions. Second operand has 6 states, 6 states have (on average 13.0) internal successors, (78), 5 states have internal predecessors, (78), 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 08:31:11,752 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 08:31:11,753 INFO L93 Difference]: Finished difference Result 403 states and 474 transitions. [2021-11-07 08:31:11,753 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-07 08:31:11,753 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 13.0) internal successors, (78), 5 states have internal predecessors, (78), 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 78 [2021-11-07 08:31:11,754 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 08:31:11,754 INFO L225 Difference]: With dead ends: 403 [2021-11-07 08:31:11,754 INFO L226 Difference]: Without dead ends: 256 [2021-11-07 08:31:11,755 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 81 GetRequests, 73 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 149.38ms TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2021-11-07 08:31:11,755 INFO L933 BasicCegarLoop]: 252 mSDtfsCounter, 826 mSDsluCounter, 237 mSDsCounter, 0 mSdLazyCounter, 106 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 440.62ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 826 SdHoareTripleChecker+Valid, 489 SdHoareTripleChecker+Invalid, 110 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 4.22ms SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 106 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 488.94ms IncrementalHoareTripleChecker+Time [2021-11-07 08:31:11,756 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [826 Valid, 489 Invalid, 110 Unknown, 0 Unchecked, 4.22ms Time], IncrementalHoareTripleChecker [4 Valid, 106 Invalid, 0 Unknown, 0 Unchecked, 488.94ms Time] [2021-11-07 08:31:11,756 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 256 states. [2021-11-07 08:31:11,760 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 256 to 256. [2021-11-07 08:31:11,760 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 256 states, 240 states have (on average 1.25) internal successors, (300), 255 states have internal predecessors, (300), 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 08:31:11,761 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 256 states to 256 states and 300 transitions. [2021-11-07 08:31:11,761 INFO L78 Accepts]: Start accepts. Automaton has 256 states and 300 transitions. Word has length 78 [2021-11-07 08:31:11,761 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 08:31:11,761 INFO L470 AbstractCegarLoop]: Abstraction has 256 states and 300 transitions. [2021-11-07 08:31:11,761 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 13.0) internal successors, (78), 5 states have internal predecessors, (78), 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 08:31:11,761 INFO L276 IsEmpty]: Start isEmpty. Operand 256 states and 300 transitions. [2021-11-07 08:31:11,762 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2021-11-07 08:31:11,762 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 08:31:11,762 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, 1, 1, 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 08:31:11,786 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2021-11-07 08:31:11,975 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 08:31:11,975 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2021-11-07 08:31:11,976 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 08:31:11,976 INFO L85 PathProgramCache]: Analyzing trace with hash 1777573379, now seen corresponding path program 1 times [2021-11-07 08:31:11,976 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 08:31:11,976 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1335824946] [2021-11-07 08:31:11,976 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 08:31:11,976 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 08:31:12,028 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-07 08:31:12,029 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1294561961] [2021-11-07 08:31:12,029 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 08:31:12,029 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-07 08:31:12,029 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-07 08:31:12,030 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 08:31:12,031 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 08:31:12,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 08:31:12,710 INFO L263 TraceCheckSpWp]: Trace formula consists of 2963 conjuncts, 7 conjunts are in the unsatisfiable core [2021-11-07 08:31:12,719 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 08:31:13,284 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 08:31:13,284 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-07 08:31:13,284 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 08:31:13,284 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1335824946] [2021-11-07 08:31:13,285 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-07 08:31:13,285 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1294561961] [2021-11-07 08:31:13,285 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1294561961] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 08:31:13,285 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 08:31:13,285 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-07 08:31:13,285 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1342476203] [2021-11-07 08:31:13,285 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 08:31:13,285 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-07 08:31:13,285 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 08:31:13,286 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-07 08:31:13,286 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-11-07 08:31:13,286 INFO L87 Difference]: Start difference. First operand 256 states and 300 transitions. Second operand has 6 states, 6 states have (on average 15.666666666666666) internal successors, (94), 5 states have internal predecessors, (94), 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 08:31:14,335 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 08:31:14,335 INFO L93 Difference]: Finished difference Result 387 states and 450 transitions. [2021-11-07 08:31:14,335 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-07 08:31:14,335 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 15.666666666666666) internal successors, (94), 5 states have internal predecessors, (94), 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 94 [2021-11-07 08:31:14,336 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 08:31:14,336 INFO L225 Difference]: With dead ends: 387 [2021-11-07 08:31:14,336 INFO L226 Difference]: Without dead ends: 256 [2021-11-07 08:31:14,337 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 97 GetRequests, 89 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 151.94ms TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2021-11-07 08:31:14,337 INFO L933 BasicCegarLoop]: 248 mSDtfsCounter, 875 mSDsluCounter, 174 mSDsCounter, 0 mSdLazyCounter, 99 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 899.63ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 875 SdHoareTripleChecker+Valid, 422 SdHoareTripleChecker+Invalid, 106 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 3.43ms SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 99 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 937.04ms IncrementalHoareTripleChecker+Time [2021-11-07 08:31:14,337 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [875 Valid, 422 Invalid, 106 Unknown, 0 Unchecked, 3.43ms Time], IncrementalHoareTripleChecker [7 Valid, 99 Invalid, 0 Unknown, 0 Unchecked, 937.04ms Time] [2021-11-07 08:31:14,338 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 256 states. [2021-11-07 08:31:14,345 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 256 to 256. [2021-11-07 08:31:14,347 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 256 states, 240 states have (on average 1.2416666666666667) internal successors, (298), 255 states have internal predecessors, (298), 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 08:31:14,347 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 256 states to 256 states and 298 transitions. [2021-11-07 08:31:14,347 INFO L78 Accepts]: Start accepts. Automaton has 256 states and 298 transitions. Word has length 94 [2021-11-07 08:31:14,348 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 08:31:14,349 INFO L470 AbstractCegarLoop]: Abstraction has 256 states and 298 transitions. [2021-11-07 08:31:14,349 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 15.666666666666666) internal successors, (94), 5 states have internal predecessors, (94), 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 08:31:14,350 INFO L276 IsEmpty]: Start isEmpty. Operand 256 states and 298 transitions. [2021-11-07 08:31:14,350 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2021-11-07 08:31:14,352 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 08:31:14,352 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:31:14,376 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 08:31:14,553 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 08:31:14,553 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2021-11-07 08:31:14,554 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 08:31:14,554 INFO L85 PathProgramCache]: Analyzing trace with hash 377228519, now seen corresponding path program 1 times [2021-11-07 08:31:14,554 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 08:31:14,554 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1229958878] [2021-11-07 08:31:14,554 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 08:31:14,554 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 08:31:14,605 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-07 08:31:14,606 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1923987119] [2021-11-07 08:31:14,606 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 08:31:14,606 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-07 08:31:14,606 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-07 08:31:14,607 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 08:31:14,608 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 08:40:30,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 08:40:30,875 INFO L263 TraceCheckSpWp]: Trace formula consists of 3058 conjuncts, 294 conjunts are in the unsatisfiable core [2021-11-07 08:40:30,883 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 08:40:30,963 INFO L354 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2021-11-07 08:40:30,964 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 1 case distinctions, treesize of input 9 treesize of output 11 [2021-11-07 08:40:31,425 INFO L354 Elim1Store]: treesize reduction 64, result has 19.0 percent of original size [2021-11-07 08:40:31,425 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 08:40:32,037 INFO L354 Elim1Store]: treesize reduction 48, result has 23.8 percent of original size [2021-11-07 08:40:32,037 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 26 treesize of output 33 [2021-11-07 08:40:33,534 INFO L354 Elim1Store]: treesize reduction 172, result has 16.1 percent of original size [2021-11-07 08:40:33,534 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 1 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 15 case distinctions, treesize of input 43 treesize of output 61 [2021-11-07 08:40:34,034 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 13 [2021-11-07 08:40:34,827 INFO L354 Elim1Store]: treesize reduction 48, result has 23.8 percent of original size [2021-11-07 08:40:34,827 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 26 treesize of output 33 [2021-11-07 08:40:36,858 INFO L354 Elim1Store]: treesize reduction 162, result has 21.0 percent of original size [2021-11-07 08:40:36,859 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 43 treesize of output 71 [2021-11-07 08:40:37,695 INFO L354 Elim1Store]: treesize reduction 160, result has 22.0 percent of original size [2021-11-07 08:40:37,695 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 51 treesize of output 81 [2021-11-07 08:40:39,374 INFO L354 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2021-11-07 08:40:39,374 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 2 new quantified variables, introduced 1 case distinctions, treesize of input 12 treesize of output 9 [2021-11-07 08:40:39,425 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 12 treesize of output 1 [2021-11-07 08:40:39,465 INFO L354 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2021-11-07 08:40:39,465 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 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 3 [2021-11-07 08:40:39,487 INFO L354 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2021-11-07 08:40:39,488 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 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 3 [2021-11-07 08:40:43,077 INFO L354 Elim1Store]: treesize reduction 312, result has 14.0 percent of original size [2021-11-07 08:40:43,078 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 7 select indices, 7 select index equivalence classes, 2 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 28 case distinctions, treesize of input 89 treesize of output 121 [2021-11-07 08:40:44,218 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 23 [2021-11-07 08:40:48,029 INFO L354 Elim1Store]: treesize reduction 248, result has 12.4 percent of original size [2021-11-07 08:40:48,030 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 7 select indices, 7 select index equivalence classes, 1 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 27 case distinctions, treesize of input 120 treesize of output 139 [2021-11-07 08:40:51,825 INFO L354 Elim1Store]: treesize reduction 164, result has 27.1 percent of original size [2021-11-07 08:40:51,826 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 8 select indices, 8 select index equivalence classes, 1 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 28 case distinctions, treesize of input 103 treesize of output 147 [2021-11-07 08:40:52,404 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 08:40:52,407 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 08:40:52,408 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-07 08:40:52,412 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 08:40:52,415 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 08:40:52,463 INFO L354 Elim1Store]: treesize reduction 15, result has 42.3 percent of original size [2021-11-07 08:40:52,464 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 5 disjoint index pairs (out of 6 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 48 treesize of output 53 Killed by 15