./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/aws-c-common/aws_byte_buf_clean_up_harness.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version bfd0d9ac 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_byte_buf_clean_up_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 c2c8100e1f648cee1922c84a2421989bafb670d4445ddc160c17e3cd878eaa49 ......................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.1-wip.dd.seqcomp-bfd0d9a [2021-11-01 09:31:12,528 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-01 09:31:12,536 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-01 09:31:12,590 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-01 09:31:12,591 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-01 09:31:12,594 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-01 09:31:12,596 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-01 09:31:12,600 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-01 09:31:12,602 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-01 09:31:12,607 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-01 09:31:12,608 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-01 09:31:12,609 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-01 09:31:12,609 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-01 09:31:12,612 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-01 09:31:12,614 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-01 09:31:12,618 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-01 09:31:12,619 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-01 09:31:12,619 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-01 09:31:12,622 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-01 09:31:12,627 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-01 09:31:12,629 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-01 09:31:12,630 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-01 09:31:12,631 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-01 09:31:12,632 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-01 09:31:12,639 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-01 09:31:12,639 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-01 09:31:12,639 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-01 09:31:12,641 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-01 09:31:12,641 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-01 09:31:12,642 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-01 09:31:12,642 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-01 09:31:12,643 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-01 09:31:12,645 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-01 09:31:12,645 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-01 09:31:12,646 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-01 09:31:12,647 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-01 09:31:12,647 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-01 09:31:12,647 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-01 09:31:12,648 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-01 09:31:12,649 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-01 09:31:12,650 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-01 09:31:12,652 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-11-01 09:31:12,684 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-01 09:31:12,685 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-01 09:31:12,685 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-01 09:31:12,685 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-01 09:31:12,687 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-01 09:31:12,687 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-01 09:31:12,688 INFO L138 SettingsManager]: * Use SBE=true [2021-11-01 09:31:12,688 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-01 09:31:12,688 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-01 09:31:12,688 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-01 09:31:12,689 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-01 09:31:12,689 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-01 09:31:12,690 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-01 09:31:12,690 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-01 09:31:12,690 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-01 09:31:12,690 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-01 09:31:12,690 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-01 09:31:12,691 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-01 09:31:12,691 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-01 09:31:12,691 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-01 09:31:12,691 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-01 09:31:12,692 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-01 09:31:12,692 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-01 09:31:12,692 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-01 09:31:12,692 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-01 09:31:12,692 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-01 09:31:12,693 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-01 09:31:12,694 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-01 09:31:12,694 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-01 09:31:12,695 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c2c8100e1f648cee1922c84a2421989bafb670d4445ddc160c17e3cd878eaa49 [2021-11-01 09:31:12,950 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-01 09:31:12,987 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-01 09:31:12,989 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-01 09:31:12,990 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-01 09:31:12,995 INFO L275 PluginConnector]: CDTParser initialized [2021-11-01 09:31:12,997 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/aws-c-common/aws_byte_buf_clean_up_harness.i [2021-11-01 09:31:13,054 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/07411929c/e38b37141f1240dda454642677c12e90/FLAG510f8a049 [2021-11-01 09:31:13,706 INFO L306 CDTParser]: Found 1 translation units. [2021-11-01 09:31:13,706 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_byte_buf_clean_up_harness.i [2021-11-01 09:31:13,752 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/07411929c/e38b37141f1240dda454642677c12e90/FLAG510f8a049 [2021-11-01 09:31:13,846 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/07411929c/e38b37141f1240dda454642677c12e90 [2021-11-01 09:31:13,849 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-01 09:31:13,850 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-01 09:31:13,853 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-01 09:31:13,853 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-01 09:31:13,856 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-01 09:31:13,857 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.11 09:31:13" (1/1) ... [2021-11-01 09:31:13,858 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@11516555 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.11 09:31:13, skipping insertion in model container [2021-11-01 09:31:13,858 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.11 09:31:13" (1/1) ... [2021-11-01 09:31:13,864 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-01 09:31:13,956 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-01 09:31:14,203 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_byte_buf_clean_up_harness.i[4495,4508] [2021-11-01 09:31:14,211 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_byte_buf_clean_up_harness.i[4555,4568] [2021-11-01 09:31:14,234 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-01 09:31:14,240 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-01 09:31:14,867 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-01 09:31:14,871 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-01 09:31:14,872 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-01 09:31:14,872 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-01 09:31:14,873 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-01 09:31:14,882 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-01 09:31:14,883 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-01 09:31:14,886 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-01 09:31:14,886 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-01 09:31:15,196 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-01 09:31:15,197 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-01 09:31:15,198 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-01 09:31:15,198 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-01 09:31:15,200 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-01 09:31:15,200 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-01 09:31:15,201 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-01 09:31:15,201 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-01 09:31:15,201 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-01 09:31:15,202 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-01 09:31:15,330 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-01 09:31:15,388 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-01 09:31:15,394 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-01 09:31:15,460 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-01 09:31:15,503 INFO L203 MainTranslator]: Completed pre-run [2021-11-01 09:31:15,525 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_byte_buf_clean_up_harness.i[4495,4508] [2021-11-01 09:31:15,527 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_byte_buf_clean_up_harness.i[4555,4568] [2021-11-01 09:31:15,528 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-01 09:31:15,529 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-01 09:31:15,567 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-01 09:31:15,567 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-01 09:31:15,569 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-01 09:31:15,570 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-01 09:31:15,571 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-01 09:31:15,577 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-01 09:31:15,578 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-01 09:31:15,579 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-01 09:31:15,579 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-01 09:31:15,643 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-01 09:31:15,644 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-01 09:31:15,645 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-01 09:31:15,645 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-01 09:31:15,646 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-01 09:31:15,647 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-01 09:31:15,647 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-01 09:31:15,647 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-01 09:31:15,648 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-01 09:31:15,648 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-01 09:31:15,671 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-01 09:31:15,708 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-01 09:31:15,709 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-01 09:31:15,730 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-01 09:31:15,985 INFO L208 MainTranslator]: Completed translation [2021-11-01 09:31:15,986 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.11 09:31:15 WrapperNode [2021-11-01 09:31:15,986 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-01 09:31:15,987 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-01 09:31:15,987 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-01 09:31:15,987 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-01 09:31:15,997 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.11 09:31:15" (1/1) ... [2021-11-01 09:31:16,130 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.11 09:31:15" (1/1) ... [2021-11-01 09:31:16,223 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-01 09:31:16,226 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-01 09:31:16,226 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-01 09:31:16,226 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-01 09:31:16,234 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.11 09:31:15" (1/1) ... [2021-11-01 09:31:16,235 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.11 09:31:15" (1/1) ... [2021-11-01 09:31:16,250 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.11 09:31:15" (1/1) ... [2021-11-01 09:31:16,251 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.11 09:31:15" (1/1) ... [2021-11-01 09:31:16,309 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.11 09:31:15" (1/1) ... [2021-11-01 09:31:16,313 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.11 09:31:15" (1/1) ... [2021-11-01 09:31:16,331 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.11 09:31:15" (1/1) ... [2021-11-01 09:31:16,348 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-01 09:31:16,355 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-01 09:31:16,356 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-01 09:31:16,356 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-01 09:31:16,357 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.11 09:31:15" (1/1) ... [2021-11-01 09:31:16,363 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-01 09:31:16,372 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-01 09:31:16,389 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) [2021-11-01 09:31:16,429 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 [2021-11-01 09:31:16,454 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-01 09:31:16,454 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-01 09:31:16,454 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-01 09:31:16,455 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-01 09:31:16,455 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-01 09:31:16,455 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-01 09:31:16,455 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-01 09:31:16,456 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-01 09:31:16,456 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-01 09:31:16,456 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-01 09:31:16,457 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-01 09:31:21,753 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-01 09:31:21,753 INFO L299 CfgBuilder]: Removed 40 assume(true) statements. [2021-11-01 09:31:21,755 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.11 09:31:21 BoogieIcfgContainer [2021-11-01 09:31:21,761 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-01 09:31:21,763 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-01 09:31:21,763 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-01 09:31:21,766 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-01 09:31:21,766 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 01.11 09:31:13" (1/3) ... [2021-11-01 09:31:21,767 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@44532d5a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.11 09:31:21, skipping insertion in model container [2021-11-01 09:31:21,768 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.11 09:31:15" (2/3) ... [2021-11-01 09:31:21,768 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@44532d5a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.11 09:31:21, skipping insertion in model container [2021-11-01 09:31:21,768 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.11 09:31:21" (3/3) ... [2021-11-01 09:31:21,770 INFO L111 eAbstractionObserver]: Analyzing ICFG aws_byte_buf_clean_up_harness.i [2021-11-01 09:31:21,774 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-01 09:31:21,774 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2021-11-01 09:31:21,827 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-01 09:31:21,833 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 [2021-11-01 09:31:21,834 INFO L340 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2021-11-01 09:31:21,857 INFO L276 IsEmpty]: Start isEmpty. Operand has 74 states, 69 states have (on average 1.4492753623188406) internal successors, (100), 73 states have internal predecessors, (100), 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) [2021-11-01 09:31:21,865 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2021-11-01 09:31:21,865 INFO L506 BasicCegarLoop]: Found error trace [2021-11-01 09:31:21,866 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] [2021-11-01 09:31:21,866 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-01 09:31:21,871 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-01 09:31:21,871 INFO L85 PathProgramCache]: Analyzing trace with hash -34818233, now seen corresponding path program 1 times [2021-11-01 09:31:21,879 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-01 09:31:21,880 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [43187623] [2021-11-01 09:31:21,880 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-01 09:31:21,881 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-01 09:31:22,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-01 09:31:22,540 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-01 09:31:22,541 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-01 09:31:22,541 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [43187623] [2021-11-01 09:31:22,542 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [43187623] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-01 09:31:22,542 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-01 09:31:22,542 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-01 09:31:22,544 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [736057888] [2021-11-01 09:31:22,547 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-01 09:31:22,548 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-01 09:31:22,569 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-01 09:31:22,570 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-01 09:31:22,572 INFO L87 Difference]: Start difference. First operand has 74 states, 69 states have (on average 1.4492753623188406) internal successors, (100), 73 states have internal predecessors, (100), 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 12.5) internal successors, (25), 2 states have internal predecessors, (25), 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) [2021-11-01 09:31:24,679 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.09s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-01 09:31:25,376 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-01 09:31:25,377 INFO L93 Difference]: Finished difference Result 141 states and 191 transitions. [2021-11-01 09:31:25,378 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-01 09:31:25,379 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 12.5) internal successors, (25), 2 states have internal predecessors, (25), 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 25 [2021-11-01 09:31:25,380 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-01 09:31:25,386 INFO L225 Difference]: With dead ends: 141 [2021-11-01 09:31:25,386 INFO L226 Difference]: Without dead ends: 69 [2021-11-01 09:31:25,388 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.03ms TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-01 09:31:25,391 INFO L933 BasicCegarLoop]: 0 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 90 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2488.17ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 91 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 2.22ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 90 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2757.25ms IncrementalHoareTripleChecker+Time [2021-11-01 09:31:25,392 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 0 Invalid, 91 Unknown, 0 Unchecked, 2.22ms Time], IncrementalHoareTripleChecker [0 Valid, 90 Invalid, 1 Unknown, 0 Unchecked, 2757.25ms Time] [2021-11-01 09:31:25,406 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 69 states. [2021-11-01 09:31:25,419 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 69 to 69. [2021-11-01 09:31:25,420 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 69 states, 65 states have (on average 1.323076923076923) internal successors, (86), 68 states have internal predecessors, (86), 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) [2021-11-01 09:31:25,422 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69 states to 69 states and 86 transitions. [2021-11-01 09:31:25,423 INFO L78 Accepts]: Start accepts. Automaton has 69 states and 86 transitions. Word has length 25 [2021-11-01 09:31:25,423 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-01 09:31:25,423 INFO L470 AbstractCegarLoop]: Abstraction has 69 states and 86 transitions. [2021-11-01 09:31:25,424 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 12.5) internal successors, (25), 2 states have internal predecessors, (25), 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) [2021-11-01 09:31:25,424 INFO L276 IsEmpty]: Start isEmpty. Operand 69 states and 86 transitions. [2021-11-01 09:31:25,425 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2021-11-01 09:31:25,425 INFO L506 BasicCegarLoop]: Found error trace [2021-11-01 09:31:25,425 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] [2021-11-01 09:31:25,426 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-01 09:31:25,426 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-01 09:31:25,427 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-01 09:31:25,427 INFO L85 PathProgramCache]: Analyzing trace with hash -1661813309, now seen corresponding path program 1 times [2021-11-01 09:31:25,427 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-01 09:31:25,427 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1135148315] [2021-11-01 09:31:25,427 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-01 09:31:25,428 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-01 09:31:25,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-01 09:31:25,744 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-01 09:31:25,744 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-01 09:31:25,745 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1135148315] [2021-11-01 09:31:25,745 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1135148315] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-01 09:31:25,745 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-01 09:31:25,745 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-01 09:31:25,745 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [985591892] [2021-11-01 09:31:25,746 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-01 09:31:25,746 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-01 09:31:25,747 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-01 09:31:25,747 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-01 09:31:25,747 INFO L87 Difference]: Start difference. First operand 69 states and 86 transitions. Second operand has 4 states, 4 states have (on average 6.25) internal successors, (25), 4 states have internal predecessors, (25), 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) [2021-11-01 09:31:27,825 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.08s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-01 09:31:28,645 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-01 09:31:28,646 INFO L93 Difference]: Finished difference Result 115 states and 141 transitions. [2021-11-01 09:31:28,646 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-01 09:31:28,647 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 6.25) internal successors, (25), 4 states have internal predecessors, (25), 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 25 [2021-11-01 09:31:28,647 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-01 09:31:28,648 INFO L225 Difference]: With dead ends: 115 [2021-11-01 09:31:28,648 INFO L226 Difference]: Without dead ends: 69 [2021-11-01 09:31:28,648 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 51.05ms TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-01 09:31:28,650 INFO L933 BasicCegarLoop]: 0 mSDtfsCounter, 112 mSDsluCounter, 36 mSDsCounter, 0 mSdLazyCounter, 128 mSolverCounterSat, 2 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2621.22ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 112 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 131 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 5.79ms SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 128 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2860.75ms IncrementalHoareTripleChecker+Time [2021-11-01 09:31:28,651 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [112 Valid, 0 Invalid, 131 Unknown, 0 Unchecked, 5.79ms Time], IncrementalHoareTripleChecker [2 Valid, 128 Invalid, 1 Unknown, 0 Unchecked, 2860.75ms Time] [2021-11-01 09:31:28,652 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 69 states. [2021-11-01 09:31:28,657 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 69 to 69. [2021-11-01 09:31:28,658 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 69 states, 65 states have (on average 1.2923076923076924) internal successors, (84), 68 states have internal predecessors, (84), 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) [2021-11-01 09:31:28,659 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69 states to 69 states and 84 transitions. [2021-11-01 09:31:28,659 INFO L78 Accepts]: Start accepts. Automaton has 69 states and 84 transitions. Word has length 25 [2021-11-01 09:31:28,659 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-01 09:31:28,659 INFO L470 AbstractCegarLoop]: Abstraction has 69 states and 84 transitions. [2021-11-01 09:31:28,660 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 6.25) internal successors, (25), 4 states have internal predecessors, (25), 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) [2021-11-01 09:31:28,660 INFO L276 IsEmpty]: Start isEmpty. Operand 69 states and 84 transitions. [2021-11-01 09:31:28,661 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2021-11-01 09:31:28,661 INFO L506 BasicCegarLoop]: Found error trace [2021-11-01 09:31:28,661 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] [2021-11-01 09:31:28,662 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-01 09:31:28,662 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-01 09:31:28,662 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-01 09:31:28,663 INFO L85 PathProgramCache]: Analyzing trace with hash 1724098915, now seen corresponding path program 1 times [2021-11-01 09:31:28,663 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-01 09:31:28,663 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [724138226] [2021-11-01 09:31:28,663 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-01 09:31:28,663 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-01 09:31:28,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-01 09:31:28,996 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-01 09:31:28,996 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-01 09:31:28,996 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [724138226] [2021-11-01 09:31:28,997 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [724138226] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-01 09:31:28,997 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-01 09:31:28,997 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-01 09:31:28,997 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1969430959] [2021-11-01 09:31:28,997 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-01 09:31:28,997 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-01 09:31:28,998 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-01 09:31:28,998 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-01 09:31:28,998 INFO L87 Difference]: Start difference. First operand 69 states and 84 transitions. Second operand has 4 states, 4 states have (on average 9.25) internal successors, (37), 4 states have internal predecessors, (37), 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) [2021-11-01 09:31:31,068 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.07s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-01 09:31:32,440 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-01 09:31:32,440 INFO L93 Difference]: Finished difference Result 168 states and 213 transitions. [2021-11-01 09:31:32,440 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-01 09:31:32,441 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 9.25) internal successors, (37), 4 states have internal predecessors, (37), 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 37 [2021-11-01 09:31:32,441 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-01 09:31:32,442 INFO L225 Difference]: With dead ends: 168 [2021-11-01 09:31:32,443 INFO L226 Difference]: Without dead ends: 113 [2021-11-01 09:31:32,443 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 70.05ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-01 09:31:32,444 INFO L933 BasicCegarLoop]: 0 mSDtfsCounter, 70 mSDsluCounter, 153 mSDsCounter, 0 mSdLazyCounter, 276 mSolverCounterSat, 5 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3086.21ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 70 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 282 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 8.20ms SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 276 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3370.34ms IncrementalHoareTripleChecker+Time [2021-11-01 09:31:32,445 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [70 Valid, 0 Invalid, 282 Unknown, 0 Unchecked, 8.20ms Time], IncrementalHoareTripleChecker [5 Valid, 276 Invalid, 1 Unknown, 0 Unchecked, 3370.34ms Time] [2021-11-01 09:31:32,446 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 113 states. [2021-11-01 09:31:32,453 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 113 to 73. [2021-11-01 09:31:32,453 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 73 states, 69 states have (on average 1.2753623188405796) internal successors, (88), 72 states have internal predecessors, (88), 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) [2021-11-01 09:31:32,454 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73 states to 73 states and 88 transitions. [2021-11-01 09:31:32,454 INFO L78 Accepts]: Start accepts. Automaton has 73 states and 88 transitions. Word has length 37 [2021-11-01 09:31:32,454 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-01 09:31:32,455 INFO L470 AbstractCegarLoop]: Abstraction has 73 states and 88 transitions. [2021-11-01 09:31:32,455 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.25) internal successors, (37), 4 states have internal predecessors, (37), 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) [2021-11-01 09:31:32,455 INFO L276 IsEmpty]: Start isEmpty. Operand 73 states and 88 transitions. [2021-11-01 09:31:32,456 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2021-11-01 09:31:32,456 INFO L506 BasicCegarLoop]: Found error trace [2021-11-01 09:31:32,456 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] [2021-11-01 09:31:32,456 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-01 09:31:32,457 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-01 09:31:32,457 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-01 09:31:32,457 INFO L85 PathProgramCache]: Analyzing trace with hash 1864647525, now seen corresponding path program 1 times [2021-11-01 09:31:32,458 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-01 09:31:32,458 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [791378649] [2021-11-01 09:31:32,458 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-01 09:31:32,458 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-01 09:31:32,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-01 09:31:32,778 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-01 09:31:32,779 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-01 09:31:32,779 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [791378649] [2021-11-01 09:31:32,779 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [791378649] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-01 09:31:32,779 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-01 09:31:32,779 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-01 09:31:32,779 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1182377848] [2021-11-01 09:31:32,780 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-01 09:31:32,780 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-01 09:31:32,780 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-01 09:31:32,780 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-01 09:31:32,781 INFO L87 Difference]: Start difference. First operand 73 states and 88 transitions. Second operand has 4 states, 4 states have (on average 9.25) internal successors, (37), 4 states have internal predecessors, (37), 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) [2021-11-01 09:31:34,849 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.07s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-01 09:31:35,865 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-01 09:31:35,865 INFO L93 Difference]: Finished difference Result 142 states and 173 transitions. [2021-11-01 09:31:35,865 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-01 09:31:35,865 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 9.25) internal successors, (37), 4 states have internal predecessors, (37), 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 37 [2021-11-01 09:31:35,866 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-01 09:31:35,866 INFO L225 Difference]: With dead ends: 142 [2021-11-01 09:31:35,866 INFO L226 Difference]: Without dead ends: 93 [2021-11-01 09:31:35,867 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 59.61ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-01 09:31:35,868 INFO L933 BasicCegarLoop]: 0 mSDtfsCounter, 58 mSDsluCounter, 124 mSDsCounter, 0 mSdLazyCounter, 239 mSolverCounterSat, 5 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2793.51ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 58 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 245 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 3.95ms SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 239 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3041.95ms IncrementalHoareTripleChecker+Time [2021-11-01 09:31:35,868 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [58 Valid, 0 Invalid, 245 Unknown, 0 Unchecked, 3.95ms Time], IncrementalHoareTripleChecker [5 Valid, 239 Invalid, 1 Unknown, 0 Unchecked, 3041.95ms Time] [2021-11-01 09:31:35,870 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 93 states. [2021-11-01 09:31:35,874 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 93 to 77. [2021-11-01 09:31:35,874 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 77 states, 73 states have (on average 1.2602739726027397) internal successors, (92), 76 states have internal predecessors, (92), 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) [2021-11-01 09:31:35,875 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 77 states to 77 states and 92 transitions. [2021-11-01 09:31:35,875 INFO L78 Accepts]: Start accepts. Automaton has 77 states and 92 transitions. Word has length 37 [2021-11-01 09:31:35,875 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-01 09:31:35,875 INFO L470 AbstractCegarLoop]: Abstraction has 77 states and 92 transitions. [2021-11-01 09:31:35,875 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.25) internal successors, (37), 4 states have internal predecessors, (37), 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) [2021-11-01 09:31:35,876 INFO L276 IsEmpty]: Start isEmpty. Operand 77 states and 92 transitions. [2021-11-01 09:31:35,876 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2021-11-01 09:31:35,876 INFO L506 BasicCegarLoop]: Found error trace [2021-11-01 09:31:35,877 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-01 09:31:35,877 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-01 09:31:35,877 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-01 09:31:35,878 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-01 09:31:35,878 INFO L85 PathProgramCache]: Analyzing trace with hash 811988131, now seen corresponding path program 1 times [2021-11-01 09:31:35,878 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-01 09:31:35,878 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2129675403] [2021-11-01 09:31:35,878 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-01 09:31:35,878 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-01 09:31:38,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-01 09:31:38,918 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-01 09:31:38,918 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-01 09:31:38,918 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2129675403] [2021-11-01 09:31:38,919 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2129675403] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-01 09:31:38,919 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-01 09:31:38,919 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-11-01 09:31:38,919 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1672253992] [2021-11-01 09:31:38,919 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-01 09:31:38,919 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-01 09:31:38,920 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-01 09:31:38,920 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2021-11-01 09:31:38,920 INFO L87 Difference]: Start difference. First operand 77 states and 92 transitions. Second operand has 8 states, 8 states have (on average 4.625) internal successors, (37), 8 states have internal predecessors, (37), 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) [2021-11-01 09:31:40,993 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.07s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-01 09:31:42,199 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-01 09:31:42,199 INFO L93 Difference]: Finished difference Result 128 states and 151 transitions. [2021-11-01 09:31:42,199 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-11-01 09:31:42,200 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 4.625) internal successors, (37), 8 states have internal predecessors, (37), 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 37 [2021-11-01 09:31:42,200 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-01 09:31:42,200 INFO L225 Difference]: With dead ends: 128 [2021-11-01 09:31:42,200 INFO L226 Difference]: Without dead ends: 77 [2021-11-01 09:31:42,201 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 535.59ms TimeCoverageRelationStatistics Valid=46, Invalid=86, Unknown=0, NotChecked=0, Total=132 [2021-11-01 09:31:42,202 INFO L933 BasicCegarLoop]: 0 mSDtfsCounter, 222 mSDsluCounter, 108 mSDsCounter, 0 mSdLazyCounter, 251 mSolverCounterSat, 9 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2852.12ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 222 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 261 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 5.80ms SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 251 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3004.02ms IncrementalHoareTripleChecker+Time [2021-11-01 09:31:42,202 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [222 Valid, 0 Invalid, 261 Unknown, 0 Unchecked, 5.80ms Time], IncrementalHoareTripleChecker [9 Valid, 251 Invalid, 1 Unknown, 0 Unchecked, 3004.02ms Time] [2021-11-01 09:31:42,203 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 77 states. [2021-11-01 09:31:42,206 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 77 to 73. [2021-11-01 09:31:42,206 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 73 states, 69 states have (on average 1.2463768115942029) internal successors, (86), 72 states have internal predecessors, (86), 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) [2021-11-01 09:31:42,207 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73 states to 73 states and 86 transitions. [2021-11-01 09:31:42,207 INFO L78 Accepts]: Start accepts. Automaton has 73 states and 86 transitions. Word has length 37 [2021-11-01 09:31:42,207 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-01 09:31:42,210 INFO L470 AbstractCegarLoop]: Abstraction has 73 states and 86 transitions. [2021-11-01 09:31:42,211 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 4.625) internal successors, (37), 8 states have internal predecessors, (37), 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) [2021-11-01 09:31:42,211 INFO L276 IsEmpty]: Start isEmpty. Operand 73 states and 86 transitions. [2021-11-01 09:31:42,213 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2021-11-01 09:31:42,213 INFO L506 BasicCegarLoop]: Found error trace [2021-11-01 09:31:42,213 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] [2021-11-01 09:31:42,215 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-11-01 09:31:42,215 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-01 09:31:42,216 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-01 09:31:42,216 INFO L85 PathProgramCache]: Analyzing trace with hash 70791141, now seen corresponding path program 1 times [2021-11-01 09:31:42,216 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-01 09:31:42,216 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [652468485] [2021-11-01 09:31:42,216 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-01 09:31:42,217 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-01 09:31:42,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-01 09:31:42,559 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-01 09:31:42,559 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-01 09:31:42,559 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [652468485] [2021-11-01 09:31:42,559 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [652468485] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-01 09:31:42,559 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-01 09:31:42,559 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-01 09:31:42,560 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1454138782] [2021-11-01 09:31:42,560 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-01 09:31:42,560 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-01 09:31:42,560 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-01 09:31:42,560 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-01 09:31:42,561 INFO L87 Difference]: Start difference. First operand 73 states and 86 transitions. Second operand has 5 states, 5 states have (on average 9.0) internal successors, (45), 5 states have internal predecessors, (45), 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) [2021-11-01 09:31:44,914 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.35s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-01 09:31:46,285 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-01 09:31:46,285 INFO L93 Difference]: Finished difference Result 176 states and 211 transitions. [2021-11-01 09:31:46,285 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-01 09:31:46,285 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.0) internal successors, (45), 5 states have internal predecessors, (45), 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 45 [2021-11-01 09:31:46,286 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-01 09:31:46,286 INFO L225 Difference]: With dead ends: 176 [2021-11-01 09:31:46,286 INFO L226 Difference]: Without dead ends: 122 [2021-11-01 09:31:46,287 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 138.32ms TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2021-11-01 09:31:46,288 INFO L933 BasicCegarLoop]: 0 mSDtfsCounter, 101 mSDsluCounter, 166 mSDsCounter, 0 mSdLazyCounter, 338 mSolverCounterSat, 7 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3376.01ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 101 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 346 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 5.32ms SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 338 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3636.96ms IncrementalHoareTripleChecker+Time [2021-11-01 09:31:46,288 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [101 Valid, 0 Invalid, 346 Unknown, 0 Unchecked, 5.32ms Time], IncrementalHoareTripleChecker [7 Valid, 338 Invalid, 1 Unknown, 0 Unchecked, 3636.96ms Time] [2021-11-01 09:31:46,289 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 122 states. [2021-11-01 09:31:46,293 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 122 to 79. [2021-11-01 09:31:46,293 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 79 states, 75 states have (on average 1.2266666666666666) internal successors, (92), 78 states have internal predecessors, (92), 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) [2021-11-01 09:31:46,294 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 79 states to 79 states and 92 transitions. [2021-11-01 09:31:46,294 INFO L78 Accepts]: Start accepts. Automaton has 79 states and 92 transitions. Word has length 45 [2021-11-01 09:31:46,294 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-01 09:31:46,294 INFO L470 AbstractCegarLoop]: Abstraction has 79 states and 92 transitions. [2021-11-01 09:31:46,295 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.0) internal successors, (45), 5 states have internal predecessors, (45), 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) [2021-11-01 09:31:46,295 INFO L276 IsEmpty]: Start isEmpty. Operand 79 states and 92 transitions. [2021-11-01 09:31:46,295 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2021-11-01 09:31:46,296 INFO L506 BasicCegarLoop]: Found error trace [2021-11-01 09:31:46,296 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] [2021-11-01 09:31:46,296 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-11-01 09:31:46,296 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-01 09:31:46,297 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-01 09:31:46,297 INFO L85 PathProgramCache]: Analyzing trace with hash -1209072537, now seen corresponding path program 1 times [2021-11-01 09:31:46,297 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-01 09:31:46,297 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [359735044] [2021-11-01 09:31:46,297 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-01 09:31:46,298 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-01 09:31:46,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-01 09:31:47,000 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-01 09:31:47,001 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-01 09:31:47,001 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [359735044] [2021-11-01 09:31:47,001 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [359735044] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-01 09:31:47,001 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-01 09:31:47,001 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-11-01 09:31:47,001 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2063556334] [2021-11-01 09:31:47,001 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-01 09:31:47,002 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-01 09:31:47,002 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-01 09:31:47,002 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-11-01 09:31:47,002 INFO L87 Difference]: Start difference. First operand 79 states and 92 transitions. Second operand has 7 states, 7 states have (on average 6.428571428571429) internal successors, (45), 7 states have internal predecessors, (45), 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) [2021-11-01 09:31:49,282 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.28s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-01 09:31:50,997 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-01 09:31:50,997 INFO L93 Difference]: Finished difference Result 137 states and 157 transitions. [2021-11-01 09:31:50,998 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-01 09:31:50,998 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 6.428571428571429) internal successors, (45), 7 states have internal predecessors, (45), 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 45 [2021-11-01 09:31:50,998 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-01 09:31:50,999 INFO L225 Difference]: With dead ends: 137 [2021-11-01 09:31:50,999 INFO L226 Difference]: Without dead ends: 79 [2021-11-01 09:31:51,000 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 295.24ms TimeCoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2021-11-01 09:31:51,001 INFO L933 BasicCegarLoop]: 0 mSDtfsCounter, 22 mSDsluCounter, 321 mSDsCounter, 0 mSdLazyCounter, 466 mSolverCounterSat, 10 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3610.80ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 477 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 5.19ms SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 466 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3866.38ms IncrementalHoareTripleChecker+Time [2021-11-01 09:31:51,001 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [22 Valid, 0 Invalid, 477 Unknown, 0 Unchecked, 5.19ms Time], IncrementalHoareTripleChecker [10 Valid, 466 Invalid, 1 Unknown, 0 Unchecked, 3866.38ms Time] [2021-11-01 09:31:51,002 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 79 states. [2021-11-01 09:31:51,008 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 79 to 79. [2021-11-01 09:31:51,009 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 79 states, 75 states have (on average 1.2) internal successors, (90), 78 states have internal predecessors, (90), 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) [2021-11-01 09:31:51,010 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 79 states to 79 states and 90 transitions. [2021-11-01 09:31:51,010 INFO L78 Accepts]: Start accepts. Automaton has 79 states and 90 transitions. Word has length 45 [2021-11-01 09:31:51,010 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-01 09:31:51,010 INFO L470 AbstractCegarLoop]: Abstraction has 79 states and 90 transitions. [2021-11-01 09:31:51,010 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 6.428571428571429) internal successors, (45), 7 states have internal predecessors, (45), 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) [2021-11-01 09:31:51,010 INFO L276 IsEmpty]: Start isEmpty. Operand 79 states and 90 transitions. [2021-11-01 09:31:51,011 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2021-11-01 09:31:51,011 INFO L506 BasicCegarLoop]: Found error trace [2021-11-01 09:31:51,012 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-01 09:31:51,012 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-11-01 09:31:51,012 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-01 09:31:51,012 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-01 09:31:51,013 INFO L85 PathProgramCache]: Analyzing trace with hash 1565232391, now seen corresponding path program 1 times [2021-11-01 09:31:51,013 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-01 09:31:51,013 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [467673457] [2021-11-01 09:31:51,013 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-01 09:31:51,013 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-01 09:31:51,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-01 09:31:51,520 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-01 09:31:51,521 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-01 09:31:51,521 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [467673457] [2021-11-01 09:31:51,521 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [467673457] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-01 09:31:51,521 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-01 09:31:51,521 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-11-01 09:31:51,521 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [30752454] [2021-11-01 09:31:51,522 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-01 09:31:51,522 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-01 09:31:51,522 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-01 09:31:51,522 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2021-11-01 09:31:51,522 INFO L87 Difference]: Start difference. First operand 79 states and 90 transitions. Second operand has 8 states, 8 states have (on average 6.125) internal successors, (49), 8 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-01 09:31:53,587 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-01 09:31:55,358 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-01 09:31:55,358 INFO L93 Difference]: Finished difference Result 162 states and 184 transitions. [2021-11-01 09:31:55,359 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-01 09:31:55,359 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 6.125) internal successors, (49), 8 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 49 [2021-11-01 09:31:55,359 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-01 09:31:55,360 INFO L225 Difference]: With dead ends: 162 [2021-11-01 09:31:55,360 INFO L226 Difference]: Without dead ends: 124 [2021-11-01 09:31:55,360 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 510.08ms TimeCoverageRelationStatistics Valid=45, Invalid=87, Unknown=0, NotChecked=0, Total=132 [2021-11-01 09:31:55,361 INFO L933 BasicCegarLoop]: 0 mSDtfsCounter, 259 mSDsluCounter, 211 mSDsCounter, 0 mSdLazyCounter, 400 mSolverCounterSat, 17 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3283.20ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 259 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 418 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 6.89ms SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 400 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3508.42ms IncrementalHoareTripleChecker+Time [2021-11-01 09:31:55,361 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [259 Valid, 0 Invalid, 418 Unknown, 0 Unchecked, 6.89ms Time], IncrementalHoareTripleChecker [17 Valid, 400 Invalid, 1 Unknown, 0 Unchecked, 3508.42ms Time] [2021-11-01 09:31:55,362 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 124 states. [2021-11-01 09:31:55,364 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 124 to 90. [2021-11-01 09:31:55,365 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 90 states, 86 states have (on average 1.186046511627907) internal successors, (102), 89 states have internal predecessors, (102), 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) [2021-11-01 09:31:55,365 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 90 states to 90 states and 102 transitions. [2021-11-01 09:31:55,365 INFO L78 Accepts]: Start accepts. Automaton has 90 states and 102 transitions. Word has length 49 [2021-11-01 09:31:55,366 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-01 09:31:55,366 INFO L470 AbstractCegarLoop]: Abstraction has 90 states and 102 transitions. [2021-11-01 09:31:55,366 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 6.125) internal successors, (49), 8 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-01 09:31:55,366 INFO L276 IsEmpty]: Start isEmpty. Operand 90 states and 102 transitions. [2021-11-01 09:31:55,367 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2021-11-01 09:31:55,367 INFO L506 BasicCegarLoop]: Found error trace [2021-11-01 09:31:55,367 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-01 09:31:55,367 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-11-01 09:31:55,368 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-01 09:31:55,368 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-01 09:31:55,368 INFO L85 PathProgramCache]: Analyzing trace with hash -1912086455, now seen corresponding path program 1 times [2021-11-01 09:31:55,368 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-01 09:31:55,369 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1308874305] [2021-11-01 09:31:55,369 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-01 09:31:55,369 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-01 09:31:55,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-01 09:31:55,589 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-01 09:31:55,589 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-01 09:31:55,589 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1308874305] [2021-11-01 09:31:55,589 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1308874305] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-01 09:31:55,589 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-01 09:31:55,589 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-01 09:31:55,589 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1791496130] [2021-11-01 09:31:55,590 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-01 09:31:55,590 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-01 09:31:55,590 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-01 09:31:55,590 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-01 09:31:55,590 INFO L87 Difference]: Start difference. First operand 90 states and 102 transitions. Second operand has 4 states, 4 states have (on average 12.25) internal successors, (49), 4 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-01 09:31:57,650 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-01 09:31:58,796 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-01 09:31:58,796 INFO L93 Difference]: Finished difference Result 160 states and 180 transitions. [2021-11-01 09:31:58,796 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-01 09:31:58,796 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 12.25) internal successors, (49), 4 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 49 [2021-11-01 09:31:58,797 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-01 09:31:58,797 INFO L225 Difference]: With dead ends: 160 [2021-11-01 09:31:58,797 INFO L226 Difference]: Without dead ends: 78 [2021-11-01 09:31:58,798 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 66.20ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-01 09:31:58,798 INFO L933 BasicCegarLoop]: 0 mSDtfsCounter, 2 mSDsluCounter, 134 mSDsCounter, 0 mSdLazyCounter, 236 mSolverCounterSat, 3 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2938.71ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 240 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 3.14ms SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 236 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3154.91ms IncrementalHoareTripleChecker+Time [2021-11-01 09:31:58,798 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2 Valid, 0 Invalid, 240 Unknown, 0 Unchecked, 3.14ms Time], IncrementalHoareTripleChecker [3 Valid, 236 Invalid, 1 Unknown, 0 Unchecked, 3154.91ms Time] [2021-11-01 09:31:58,799 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 78 states. [2021-11-01 09:31:58,801 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 78 to 69. [2021-11-01 09:31:58,802 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 69 states, 65 states have (on average 1.1384615384615384) internal successors, (74), 68 states have internal predecessors, (74), 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) [2021-11-01 09:31:58,802 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69 states to 69 states and 74 transitions. [2021-11-01 09:31:58,802 INFO L78 Accepts]: Start accepts. Automaton has 69 states and 74 transitions. Word has length 49 [2021-11-01 09:31:58,802 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-01 09:31:58,802 INFO L470 AbstractCegarLoop]: Abstraction has 69 states and 74 transitions. [2021-11-01 09:31:58,803 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.25) internal successors, (49), 4 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-01 09:31:58,803 INFO L276 IsEmpty]: Start isEmpty. Operand 69 states and 74 transitions. [2021-11-01 09:31:58,803 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2021-11-01 09:31:58,803 INFO L506 BasicCegarLoop]: Found error trace [2021-11-01 09:31:58,804 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-01 09:31:58,804 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-11-01 09:31:58,804 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-01 09:31:58,804 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-01 09:31:58,805 INFO L85 PathProgramCache]: Analyzing trace with hash -922532285, now seen corresponding path program 1 times [2021-11-01 09:31:58,805 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-01 09:31:58,805 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [80319865] [2021-11-01 09:31:58,805 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-01 09:31:58,805 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-01 09:32:00,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-01 09:32:01,261 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-01 09:32:01,261 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-01 09:32:01,261 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [80319865] [2021-11-01 09:32:01,261 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [80319865] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-01 09:32:01,261 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-01 09:32:01,261 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-01 09:32:01,261 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1041145414] [2021-11-01 09:32:01,262 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-01 09:32:01,262 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-01 09:32:01,262 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-01 09:32:01,262 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-11-01 09:32:01,262 INFO L87 Difference]: Start difference. First operand 69 states and 74 transitions. Second operand has 6 states, 6 states have (on average 8.166666666666666) internal successors, (49), 6 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-01 09:32:03,325 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-01 09:32:04,213 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-01 09:32:04,214 INFO L93 Difference]: Finished difference Result 69 states and 74 transitions. [2021-11-01 09:32:04,214 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-01 09:32:04,214 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.166666666666666) internal successors, (49), 6 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 49 [2021-11-01 09:32:04,215 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-01 09:32:04,215 INFO L225 Difference]: With dead ends: 69 [2021-11-01 09:32:04,215 INFO L226 Difference]: Without dead ends: 67 [2021-11-01 09:32:04,215 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 271.38ms TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2021-11-01 09:32:04,216 INFO L933 BasicCegarLoop]: 0 mSDtfsCounter, 70 mSDsluCounter, 126 mSDsCounter, 0 mSdLazyCounter, 224 mSolverCounterSat, 2 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2693.36ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 70 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 227 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 2.84ms SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 224 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2828.12ms IncrementalHoareTripleChecker+Time [2021-11-01 09:32:04,216 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [70 Valid, 0 Invalid, 227 Unknown, 0 Unchecked, 2.84ms Time], IncrementalHoareTripleChecker [2 Valid, 224 Invalid, 1 Unknown, 0 Unchecked, 2828.12ms Time] [2021-11-01 09:32:04,217 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 67 states. [2021-11-01 09:32:04,220 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 67 to 67. [2021-11-01 09:32:04,220 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 67 states, 64 states have (on average 1.125) internal successors, (72), 66 states have internal predecessors, (72), 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) [2021-11-01 09:32:04,220 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 67 states to 67 states and 72 transitions. [2021-11-01 09:32:04,220 INFO L78 Accepts]: Start accepts. Automaton has 67 states and 72 transitions. Word has length 49 [2021-11-01 09:32:04,221 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-01 09:32:04,221 INFO L470 AbstractCegarLoop]: Abstraction has 67 states and 72 transitions. [2021-11-01 09:32:04,221 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.166666666666666) internal successors, (49), 6 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-01 09:32:04,221 INFO L276 IsEmpty]: Start isEmpty. Operand 67 states and 72 transitions. [2021-11-01 09:32:04,222 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2021-11-01 09:32:04,222 INFO L506 BasicCegarLoop]: Found error trace [2021-11-01 09:32:04,222 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] [2021-11-01 09:32:04,222 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-11-01 09:32:04,222 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-01 09:32:04,223 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-01 09:32:04,223 INFO L85 PathProgramCache]: Analyzing trace with hash -1790132923, now seen corresponding path program 1 times [2021-11-01 09:32:04,223 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-01 09:32:04,223 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1502901614] [2021-11-01 09:32:04,223 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-01 09:32:04,224 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-01 09:32:06,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-01 09:32:06,597 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-01 09:32:06,598 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-01 09:32:06,598 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1502901614] [2021-11-01 09:32:06,598 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1502901614] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-01 09:32:06,598 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-01 09:32:06,598 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-01 09:32:06,598 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1605772159] [2021-11-01 09:32:06,599 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-01 09:32:06,599 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-01 09:32:06,599 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-01 09:32:06,599 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-11-01 09:32:06,599 INFO L87 Difference]: Start difference. First operand 67 states and 72 transitions. Second operand has 6 states, 6 states have (on average 8.5) internal successors, (51), 6 states have internal predecessors, (51), 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) [2021-11-01 09:32:09,080 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.48s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-01 09:32:10,191 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-01 09:32:10,191 INFO L93 Difference]: Finished difference Result 67 states and 72 transitions. [2021-11-01 09:32:10,192 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-01 09:32:10,192 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.5) internal successors, (51), 6 states have internal predecessors, (51), 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 51 [2021-11-01 09:32:10,193 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-01 09:32:10,194 INFO L225 Difference]: With dead ends: 67 [2021-11-01 09:32:10,194 INFO L226 Difference]: Without dead ends: 65 [2021-11-01 09:32:10,194 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 251.64ms TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2021-11-01 09:32:10,195 INFO L933 BasicCegarLoop]: 0 mSDtfsCounter, 53 mSDsluCounter, 125 mSDsCounter, 0 mSdLazyCounter, 220 mSolverCounterSat, 2 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3227.58ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 53 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 223 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 2.93ms SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 220 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3464.33ms IncrementalHoareTripleChecker+Time [2021-11-01 09:32:10,195 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [53 Valid, 0 Invalid, 223 Unknown, 0 Unchecked, 2.93ms Time], IncrementalHoareTripleChecker [2 Valid, 220 Invalid, 1 Unknown, 0 Unchecked, 3464.33ms Time] [2021-11-01 09:32:10,196 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 65 states. [2021-11-01 09:32:10,200 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 65 to 65. [2021-11-01 09:32:10,200 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 65 states, 63 states have (on average 1.1111111111111112) internal successors, (70), 64 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) [2021-11-01 09:32:10,201 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65 states to 65 states and 70 transitions. [2021-11-01 09:32:10,201 INFO L78 Accepts]: Start accepts. Automaton has 65 states and 70 transitions. Word has length 51 [2021-11-01 09:32:10,202 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-01 09:32:10,202 INFO L470 AbstractCegarLoop]: Abstraction has 65 states and 70 transitions. [2021-11-01 09:32:10,202 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.5) internal successors, (51), 6 states have internal predecessors, (51), 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) [2021-11-01 09:32:10,202 INFO L276 IsEmpty]: Start isEmpty. Operand 65 states and 70 transitions. [2021-11-01 09:32:10,203 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2021-11-01 09:32:10,203 INFO L506 BasicCegarLoop]: Found error trace [2021-11-01 09:32:10,204 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] [2021-11-01 09:32:10,204 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-11-01 09:32:10,204 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-01 09:32:10,205 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-01 09:32:10,205 INFO L85 PathProgramCache]: Analyzing trace with hash 1964276967, now seen corresponding path program 1 times [2021-11-01 09:32:10,205 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-01 09:32:10,205 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [680658151] [2021-11-01 09:32:10,205 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-01 09:32:10,205 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-01 09:32:10,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-01 09:32:10,628 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-01 09:32:10,628 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-01 09:32:10,628 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [680658151] [2021-11-01 09:32:10,628 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [680658151] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-01 09:32:10,628 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-01 09:32:10,629 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-01 09:32:10,629 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1465774441] [2021-11-01 09:32:10,629 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-01 09:32:10,629 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-01 09:32:10,629 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-01 09:32:10,629 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-01 09:32:10,630 INFO L87 Difference]: Start difference. First operand 65 states and 70 transitions. Second operand has 5 states, 5 states have (on average 10.6) internal successors, (53), 5 states have internal predecessors, (53), 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) [2021-11-01 09:32:13,425 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.79s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-01 09:32:14,327 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-01 09:32:14,328 INFO L93 Difference]: Finished difference Result 65 states and 70 transitions. [2021-11-01 09:32:14,328 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-01 09:32:14,329 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.6) internal successors, (53), 5 states have internal predecessors, (53), 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 53 [2021-11-01 09:32:14,329 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-01 09:32:14,329 INFO L225 Difference]: With dead ends: 65 [2021-11-01 09:32:14,329 INFO L226 Difference]: Without dead ends: 63 [2021-11-01 09:32:14,329 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 160.77ms TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-11-01 09:32:14,330 INFO L933 BasicCegarLoop]: 0 mSDtfsCounter, 24 mSDsluCounter, 121 mSDsCounter, 0 mSdLazyCounter, 216 mSolverCounterSat, 2 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3390.39ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 24 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 219 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 1.82ms SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 216 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3616.50ms IncrementalHoareTripleChecker+Time [2021-11-01 09:32:14,330 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [24 Valid, 0 Invalid, 219 Unknown, 0 Unchecked, 1.82ms Time], IncrementalHoareTripleChecker [2 Valid, 216 Invalid, 1 Unknown, 0 Unchecked, 3616.50ms Time] [2021-11-01 09:32:14,331 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63 states. [2021-11-01 09:32:14,332 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63 to 63. [2021-11-01 09:32:14,332 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 63 states, 62 states have (on average 1.096774193548387) internal successors, (68), 62 states have internal predecessors, (68), 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) [2021-11-01 09:32:14,333 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63 states to 63 states and 68 transitions. [2021-11-01 09:32:14,333 INFO L78 Accepts]: Start accepts. Automaton has 63 states and 68 transitions. Word has length 53 [2021-11-01 09:32:14,333 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-01 09:32:14,333 INFO L470 AbstractCegarLoop]: Abstraction has 63 states and 68 transitions. [2021-11-01 09:32:14,333 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.6) internal successors, (53), 5 states have internal predecessors, (53), 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) [2021-11-01 09:32:14,334 INFO L276 IsEmpty]: Start isEmpty. Operand 63 states and 68 transitions. [2021-11-01 09:32:14,334 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2021-11-01 09:32:14,334 INFO L506 BasicCegarLoop]: Found error trace [2021-11-01 09:32:14,334 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] [2021-11-01 09:32:14,335 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-11-01 09:32:14,335 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-01 09:32:14,335 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-01 09:32:14,335 INFO L85 PathProgramCache]: Analyzing trace with hash -2115314391, now seen corresponding path program 1 times [2021-11-01 09:32:14,336 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-01 09:32:14,336 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [639319846] [2021-11-01 09:32:14,336 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-01 09:32:14,336 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-01 09:32:16,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-01 09:32:16,559 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-01 09:32:16,560 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-01 09:32:16,560 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [639319846] [2021-11-01 09:32:16,560 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [639319846] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-01 09:32:16,560 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-01 09:32:16,560 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-01 09:32:16,560 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [541546421] [2021-11-01 09:32:16,561 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-01 09:32:16,561 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-01 09:32:16,561 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-01 09:32:16,561 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-11-01 09:32:16,561 INFO L87 Difference]: Start difference. First operand 63 states and 68 transitions. Second operand has 6 states, 6 states have (on average 9.166666666666666) internal successors, (55), 6 states have internal predecessors, (55), 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) [2021-11-01 09:32:18,620 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-01 09:32:19,508 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-01 09:32:19,508 INFO L93 Difference]: Finished difference Result 63 states and 68 transitions. [2021-11-01 09:32:19,508 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-01 09:32:19,508 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.166666666666666) internal successors, (55), 6 states have internal predecessors, (55), 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 55 [2021-11-01 09:32:19,509 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-01 09:32:19,509 INFO L225 Difference]: With dead ends: 63 [2021-11-01 09:32:19,509 INFO L226 Difference]: Without dead ends: 0 [2021-11-01 09:32:19,509 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 218.20ms TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2021-11-01 09:32:19,510 INFO L933 BasicCegarLoop]: 0 mSDtfsCounter, 42 mSDsluCounter, 118 mSDsCounter, 0 mSdLazyCounter, 213 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2675.10ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 42 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 214 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 2.25ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 213 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2845.82ms IncrementalHoareTripleChecker+Time [2021-11-01 09:32:19,510 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [42 Valid, 0 Invalid, 214 Unknown, 0 Unchecked, 2.25ms Time], IncrementalHoareTripleChecker [0 Valid, 213 Invalid, 1 Unknown, 0 Unchecked, 2845.82ms Time] [2021-11-01 09:32:19,510 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-11-01 09:32:19,511 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-11-01 09:32:19,511 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 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) [2021-11-01 09:32:19,511 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-11-01 09:32:19,511 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 55 [2021-11-01 09:32:19,511 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-01 09:32:19,511 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-11-01 09:32:19,512 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.166666666666666) internal successors, (55), 6 states have internal predecessors, (55), 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) [2021-11-01 09:32:19,512 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-11-01 09:32:19,512 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-11-01 09:32:19,514 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (3 of 4 remaining) [2021-11-01 09:32:19,515 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (2 of 4 remaining) [2021-11-01 09:32:19,515 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (1 of 4 remaining) [2021-11-01 09:32:19,516 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION (0 of 4 remaining) [2021-11-01 09:32:19,516 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-11-01 09:32:19,518 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-11-01 09:32:19,522 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-01 09:32:19,531 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-01 09:32:19,532 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-01 09:32:19,548 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-01 09:32:19,549 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-01 09:32:19,554 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-01 09:32:20,354 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION(line 223) no Hoare annotation was computed. [2021-11-01 09:32:20,354 INFO L858 garLoopResultBuilder]: For program point L7063(lines 7063 7067) no Hoare annotation was computed. [2021-11-01 09:32:20,354 INFO L858 garLoopResultBuilder]: For program point L7055(lines 7055 7068) no Hoare annotation was computed. [2021-11-01 09:32:20,355 INFO L858 garLoopResultBuilder]: For program point L6609(lines 6609 6614) no Hoare annotation was computed. [2021-11-01 09:32:20,355 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-11-01 09:32:20,355 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2021-11-01 09:32:20,355 INFO L858 garLoopResultBuilder]: For program point L6610(lines 6610 6612) no Hoare annotation was computed. [2021-11-01 09:32:20,355 INFO L858 garLoopResultBuilder]: For program point L210(lines 210 212) no Hoare annotation was computed. [2021-11-01 09:32:20,355 INFO L858 garLoopResultBuilder]: For program point L210-1(lines 210 212) no Hoare annotation was computed. [2021-11-01 09:32:20,355 INFO L858 garLoopResultBuilder]: For program point L210-2(lines 210 212) no Hoare annotation was computed. [2021-11-01 09:32:20,356 INFO L858 garLoopResultBuilder]: For program point L6610-2(lines 6610 6612) no Hoare annotation was computed. [2021-11-01 09:32:20,356 INFO L858 garLoopResultBuilder]: For program point L210-3(lines 210 212) no Hoare annotation was computed. [2021-11-01 09:32:20,356 INFO L858 garLoopResultBuilder]: For program point L210-4(lines 210 212) no Hoare annotation was computed. [2021-11-01 09:32:20,356 INFO L858 garLoopResultBuilder]: For program point L7205-2(lines 7205 7207) no Hoare annotation was computed. [2021-11-01 09:32:20,356 INFO L858 garLoopResultBuilder]: For program point L7205(line 7205) no Hoare annotation was computed. [2021-11-01 09:32:20,356 INFO L858 garLoopResultBuilder]: For program point L7205-4(lines 7205 7207) no Hoare annotation was computed. [2021-11-01 09:32:20,356 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION(line 223) no Hoare annotation was computed. [2021-11-01 09:32:20,357 INFO L858 garLoopResultBuilder]: For program point L211(line 211) no Hoare annotation was computed. [2021-11-01 09:32:20,357 INFO L858 garLoopResultBuilder]: For program point L211-2(line 211) no Hoare annotation was computed. [2021-11-01 09:32:20,357 INFO L858 garLoopResultBuilder]: For program point L211-4(line 211) no Hoare annotation was computed. [2021-11-01 09:32:20,357 INFO L858 garLoopResultBuilder]: For program point L7181-3(line 7181) no Hoare annotation was computed. [2021-11-01 09:32:20,357 INFO L858 garLoopResultBuilder]: For program point L211-6(line 211) no Hoare annotation was computed. [2021-11-01 09:32:20,357 INFO L858 garLoopResultBuilder]: For program point L7181-1(line 7181) no Hoare annotation was computed. [2021-11-01 09:32:20,357 INFO L858 garLoopResultBuilder]: For program point L211-8(line 211) no Hoare annotation was computed. [2021-11-01 09:32:20,358 INFO L858 garLoopResultBuilder]: For program point L7181(lines 7181 7184) no Hoare annotation was computed. [2021-11-01 09:32:20,358 INFO L858 garLoopResultBuilder]: For program point L7181-7(lines 7181 7184) no Hoare annotation was computed. [2021-11-01 09:32:20,358 INFO L858 garLoopResultBuilder]: For program point L7181-6(lines 7181 7182) no Hoare annotation was computed. [2021-11-01 09:32:20,358 INFO L858 garLoopResultBuilder]: For program point L7181-4(lines 7181 7182) no Hoare annotation was computed. [2021-11-01 09:32:20,358 INFO L854 garLoopResultBuilder]: At program point L261(line 261) the Hoare annotation is: (and (= ULTIMATE.start_ensure_byte_buf_has_allocated_buffer_member_~buf.offset 0) (not (= |ULTIMATE.start_aws_byte_buf_clean_up_harness_~#buf~3.base| 0)) (= |ULTIMATE.start_aws_byte_buf_clean_up_harness_~#buf~3.offset| 0) (= |ULTIMATE.start_aws_byte_buf_clean_up_harness_~#buf~3.base| ULTIMATE.start_ensure_byte_buf_has_allocated_buffer_member_~buf.base)) [2021-11-01 09:32:20,358 INFO L858 garLoopResultBuilder]: For program point L7181-11(lines 7181 7184) no Hoare annotation was computed. [2021-11-01 09:32:20,359 INFO L854 garLoopResultBuilder]: At program point L6884(lines 6883 6885) the Hoare annotation is: (and (= ULTIMATE.start_ensure_byte_buf_has_allocated_buffer_member_~buf.offset 0) (not (= |ULTIMATE.start_aws_byte_buf_clean_up_harness_~#buf~3.base| 0)) (= |ULTIMATE.start_aws_byte_buf_clean_up_harness_~#buf~3.offset| 0) (= |ULTIMATE.start_aws_byte_buf_clean_up_harness_~#buf~3.base| ULTIMATE.start_ensure_byte_buf_has_allocated_buffer_member_~buf.base)) [2021-11-01 09:32:20,359 INFO L858 garLoopResultBuilder]: For program point L7181-9(lines 7181 7184) no Hoare annotation was computed. [2021-11-01 09:32:20,359 INFO L858 garLoopResultBuilder]: For program point L7181-14(line 7181) no Hoare annotation was computed. [2021-11-01 09:32:20,359 INFO L858 garLoopResultBuilder]: For program point L7181-13(lines 7181 7184) no Hoare annotation was computed. [2021-11-01 09:32:20,359 INFO L854 garLoopResultBuilder]: At program point L7181-12(lines 7179 7185) the Hoare annotation is: (let ((.cse0 (not (= |ULTIMATE.start_bounded_malloc_#res.base| 0))) (.cse1 (= ULTIMATE.start_ensure_byte_buf_has_allocated_buffer_member_~buf.offset 0)) (.cse2 (not (= |ULTIMATE.start_aws_byte_buf_clean_up_harness_~#buf~3.base| 0))) (.cse3 (= |ULTIMATE.start_aws_byte_buf_clean_up_harness_~#buf~3.offset| 0)) (.cse4 (not (= 0 (select (select |#memory_$Pointer$.base| ULTIMATE.start_aws_byte_buf_is_valid_~buf.base) (+ ULTIMATE.start_aws_byte_buf_is_valid_~buf.offset 8))))) (.cse5 (= |ULTIMATE.start_aws_byte_buf_clean_up_harness_~#buf~3.base| ULTIMATE.start_ensure_byte_buf_has_allocated_buffer_member_~buf.base))) (or (and .cse0 .cse1 .cse2 .cse3 (= |ULTIMATE.start_aws_byte_buf_clean_up_harness_~#buf~3.offset| ULTIMATE.start_aws_byte_buf_is_valid_~buf.offset) .cse4 .cse5 (= |ULTIMATE.start_aws_byte_buf_clean_up_harness_~#buf~3.base| ULTIMATE.start_aws_byte_buf_is_valid_~buf.base)) (and (= ULTIMATE.start_aws_byte_buf_is_valid_~buf.offset 0) .cse0 (<= |ULTIMATE.start_aws_byte_buf_is_valid_#res| 0) .cse1 .cse2 (<= 0 |ULTIMATE.start_aws_byte_buf_is_valid_#res|) .cse3 (not (= (select (select |#memory_$Pointer$.base| |ULTIMATE.start_aws_byte_buf_clean_up_harness_~#buf~3.base|) 8) 0)) .cse4 .cse5))) [2021-11-01 09:32:20,359 INFO L858 garLoopResultBuilder]: For program point L7181-19(lines 7181 7182) no Hoare annotation was computed. [2021-11-01 09:32:20,360 INFO L858 garLoopResultBuilder]: For program point L7181-17(lines 7181 7182) no Hoare annotation was computed. [2021-11-01 09:32:20,360 INFO L858 garLoopResultBuilder]: For program point L7181-16(line 7181) no Hoare annotation was computed. [2021-11-01 09:32:20,360 INFO L858 garLoopResultBuilder]: For program point L7181-22(lines 7181 7184) no Hoare annotation was computed. [2021-11-01 09:32:20,360 INFO L858 garLoopResultBuilder]: For program point L7181-20(lines 7181 7184) no Hoare annotation was computed. [2021-11-01 09:32:20,360 INFO L854 garLoopResultBuilder]: At program point L7181-25(lines 7179 7185) the Hoare annotation is: (let ((.cse0 (not (= |ULTIMATE.start_bounded_malloc_#res.base| 0))) (.cse1 (= ULTIMATE.start_ensure_byte_buf_has_allocated_buffer_member_~buf.offset 0)) (.cse2 (not (= |ULTIMATE.start_aws_byte_buf_clean_up_harness_~#buf~3.base| 0))) (.cse3 (= |ULTIMATE.start_aws_byte_buf_clean_up_harness_~#buf~3.offset| 0)) (.cse4 (not (= 0 (select (select |#memory_$Pointer$.base| ULTIMATE.start_aws_byte_buf_is_valid_~buf.base) (+ ULTIMATE.start_aws_byte_buf_is_valid_~buf.offset 8))))) (.cse5 (= |ULTIMATE.start_aws_byte_buf_clean_up_harness_~#buf~3.base| ULTIMATE.start_ensure_byte_buf_has_allocated_buffer_member_~buf.base))) (or (and .cse0 .cse1 .cse2 .cse3 (= |ULTIMATE.start_aws_byte_buf_clean_up_harness_~#buf~3.offset| ULTIMATE.start_aws_byte_buf_is_valid_~buf.offset) .cse4 (= ULTIMATE.start_aws_byte_buf_clean_up_~buf.offset 0) .cse5 (= ULTIMATE.start_aws_byte_buf_clean_up_~buf.base |ULTIMATE.start_aws_byte_buf_clean_up_harness_~#buf~3.base|) (= |ULTIMATE.start_aws_byte_buf_clean_up_harness_~#buf~3.base| ULTIMATE.start_aws_byte_buf_is_valid_~buf.base)) (and (= ULTIMATE.start_aws_byte_buf_is_valid_~buf.offset 0) .cse0 (<= |ULTIMATE.start_aws_byte_buf_is_valid_#res| 0) .cse1 .cse2 (<= 0 |ULTIMATE.start_aws_byte_buf_is_valid_#res|) .cse3 (not (= (select (select |#memory_$Pointer$.base| |ULTIMATE.start_aws_byte_buf_clean_up_harness_~#buf~3.base|) 8) 0)) .cse4 .cse5))) [2021-11-01 09:32:20,361 INFO L858 garLoopResultBuilder]: For program point L7181-24(lines 7181 7184) no Hoare annotation was computed. [2021-11-01 09:32:20,361 INFO L858 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2021-11-01 09:32:20,361 INFO L858 garLoopResultBuilder]: For program point L222(lines 222 224) no Hoare annotation was computed. [2021-11-01 09:32:20,361 INFO L858 garLoopResultBuilder]: For program point L222-1(lines 222 224) no Hoare annotation was computed. [2021-11-01 09:32:20,361 INFO L858 garLoopResultBuilder]: For program point L222-2(lines 222 224) no Hoare annotation was computed. [2021-11-01 09:32:20,361 INFO L858 garLoopResultBuilder]: For program point L222-3(lines 222 224) no Hoare annotation was computed. [2021-11-01 09:32:20,361 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 223) no Hoare annotation was computed. [2021-11-01 09:32:20,362 INFO L858 garLoopResultBuilder]: For program point L7184-2(line 7184) no Hoare annotation was computed. [2021-11-01 09:32:20,362 INFO L858 garLoopResultBuilder]: For program point L7184(line 7184) no Hoare annotation was computed. [2021-11-01 09:32:20,362 INFO L858 garLoopResultBuilder]: For program point L7184-6(line 7184) no Hoare annotation was computed. [2021-11-01 09:32:20,362 INFO L858 garLoopResultBuilder]: For program point L7184-4(line 7184) no Hoare annotation was computed. [2021-11-01 09:32:20,362 INFO L858 garLoopResultBuilder]: For program point L7184-3(line 7184) no Hoare annotation was computed. [2021-11-01 09:32:20,362 INFO L858 garLoopResultBuilder]: For program point L7184-9(line 7184) no Hoare annotation was computed. [2021-11-01 09:32:20,362 INFO L858 garLoopResultBuilder]: For program point L7184-8(line 7184) no Hoare annotation was computed. [2021-11-01 09:32:20,363 INFO L858 garLoopResultBuilder]: For program point L7184-13(line 7184) no Hoare annotation was computed. [2021-11-01 09:32:20,363 INFO L858 garLoopResultBuilder]: For program point L7184-12(line 7184) no Hoare annotation was computed. [2021-11-01 09:32:20,363 INFO L858 garLoopResultBuilder]: For program point L7184-11(line 7184) no Hoare annotation was computed. [2021-11-01 09:32:20,363 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-11-01 09:32:20,363 INFO L858 garLoopResultBuilder]: For program point L7184-17(line 7184) no Hoare annotation was computed. [2021-11-01 09:32:20,363 INFO L858 garLoopResultBuilder]: For program point L223(line 223) no Hoare annotation was computed. [2021-11-01 09:32:20,363 INFO L858 garLoopResultBuilder]: For program point L7184-15(line 7184) no Hoare annotation was computed. [2021-11-01 09:32:20,364 INFO L858 garLoopResultBuilder]: For program point L223-1(line 223) no Hoare annotation was computed. [2021-11-01 09:32:20,364 INFO L858 garLoopResultBuilder]: For program point L223-3(line 223) no Hoare annotation was computed. [2021-11-01 09:32:20,364 INFO L858 garLoopResultBuilder]: For program point L223-4(line 223) no Hoare annotation was computed. [2021-11-01 09:32:20,364 INFO L858 garLoopResultBuilder]: For program point L223-6(line 223) no Hoare annotation was computed. [2021-11-01 09:32:20,364 INFO L858 garLoopResultBuilder]: For program point L223-7(line 223) no Hoare annotation was computed. [2021-11-01 09:32:20,364 INFO L858 garLoopResultBuilder]: For program point L223-9(line 223) no Hoare annotation was computed. [2021-11-01 09:32:20,364 INFO L858 garLoopResultBuilder]: For program point L223-10(line 223) no Hoare annotation was computed. [2021-11-01 09:32:20,364 INFO L861 garLoopResultBuilder]: At program point L8779(line 8779) the Hoare annotation is: true [2021-11-01 09:32:20,365 INFO L854 garLoopResultBuilder]: At program point L6880(lines 6876 6881) the Hoare annotation is: (and (not (= |ULTIMATE.start_bounded_malloc_#res.base| 0)) (= ULTIMATE.start_ensure_byte_buf_has_allocated_buffer_member_~buf.offset 0) (not (= |ULTIMATE.start_aws_byte_buf_clean_up_harness_~#buf~3.base| 0)) (= |ULTIMATE.start_aws_byte_buf_clean_up_harness_~#buf~3.offset| 0) (= |ULTIMATE.start_aws_byte_buf_clean_up_harness_~#buf~3.base| ULTIMATE.start_ensure_byte_buf_has_allocated_buffer_member_~buf.base)) [2021-11-01 09:32:20,365 INFO L858 garLoopResultBuilder]: For program point L8763(lines 8763 8778) no Hoare annotation was computed. [2021-11-01 09:32:20,365 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION(line 223) no Hoare annotation was computed. [2021-11-01 09:32:20,365 INFO L858 garLoopResultBuilder]: For program point L7203(lines 7203 7216) no Hoare annotation was computed. [2021-11-01 09:32:20,368 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-01 09:32:20,369 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-11-01 09:32:20,380 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2021-11-01 09:32:20,381 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2021-11-01 09:32:20,381 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2021-11-01 09:32:20,382 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2021-11-01 09:32:20,383 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2021-11-01 09:32:20,383 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2021-11-01 09:32:20,385 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2021-11-01 09:32:20,385 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2021-11-01 09:32:20,385 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2021-11-01 09:32:20,386 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2021-11-01 09:32:20,387 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2021-11-01 09:32:20,387 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2021-11-01 09:32:20,388 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 01.11 09:32:20 BoogieIcfgContainer [2021-11-01 09:32:20,388 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-11-01 09:32:20,389 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-01 09:32:20,389 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-01 09:32:20,389 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-01 09:32:20,389 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.11 09:31:21" (3/4) ... [2021-11-01 09:32:20,392 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-11-01 09:32:20,407 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 120 nodes and edges [2021-11-01 09:32:20,409 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 54 nodes and edges [2021-11-01 09:32:20,410 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 25 nodes and edges [2021-11-01 09:32:20,411 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 13 nodes and edges [2021-11-01 09:32:20,412 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2021-11-01 09:32:20,413 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2021-11-01 09:32:20,413 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2021-11-01 09:32:20,414 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-11-01 09:32:20,449 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((!(\result == 0) && buf == 0) && !(buf == 0)) && buf == 0) && buf == buf [2021-11-01 09:32:20,450 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((((!(\result == 0) && buf == 0) && !(buf == 0)) && buf == 0) && buf == buf) && !(0 == #memory_$Pointer$[buf][buf + 8])) && buf == buf) && buf == buf) || (((((((((buf == 0 && !(\result == 0)) && \result <= 0) && buf == 0) && !(buf == 0)) && 0 <= \result) && buf == 0) && !(#memory_$Pointer$[buf][8] == 0)) && !(0 == #memory_$Pointer$[buf][buf + 8])) && buf == buf) [2021-11-01 09:32:20,450 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((((((!(\result == 0) && buf == 0) && !(buf == 0)) && buf == 0) && buf == buf) && !(0 == #memory_$Pointer$[buf][buf + 8])) && buf == 0) && buf == buf) && buf == buf) && buf == buf) || (((((((((buf == 0 && !(\result == 0)) && \result <= 0) && buf == 0) && !(buf == 0)) && 0 <= \result) && buf == 0) && !(#memory_$Pointer$[buf][8] == 0)) && !(0 == #memory_$Pointer$[buf][buf + 8])) && buf == buf) [2021-11-01 09:32:21,030 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2021-11-01 09:32:21,031 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-01 09:32:21,031 INFO L158 Benchmark]: Toolchain (without parser) took 67180.82ms. Allocated memory was 109.1MB in the beginning and 614.5MB in the end (delta: 505.4MB). Free memory was 81.5MB in the beginning and 176.2MB in the end (delta: -94.8MB). Peak memory consumption was 424.6MB. Max. memory is 16.1GB. [2021-11-01 09:32:21,032 INFO L158 Benchmark]: CDTParser took 0.19ms. Allocated memory is still 86.0MB. Free memory was 59.5MB in the beginning and 59.5MB in the end (delta: 29.1kB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-01 09:32:21,032 INFO L158 Benchmark]: CACSL2BoogieTranslator took 2133.14ms. Allocated memory was 109.1MB in the beginning and 151.0MB in the end (delta: 41.9MB). Free memory was 81.0MB in the beginning and 81.2MB in the end (delta: -199.5kB). Peak memory consumption was 63.8MB. Max. memory is 16.1GB. [2021-11-01 09:32:21,032 INFO L158 Benchmark]: Boogie Procedure Inliner took 238.20ms. Allocated memory is still 151.0MB. Free memory was 81.2MB in the beginning and 69.9MB in the end (delta: 11.3MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2021-11-01 09:32:21,032 INFO L158 Benchmark]: Boogie Preprocessor took 128.25ms. Allocated memory is still 151.0MB. Free memory was 69.9MB in the beginning and 62.3MB in the end (delta: 7.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-11-01 09:32:21,033 INFO L158 Benchmark]: RCFGBuilder took 5406.31ms. Allocated memory was 151.0MB in the beginning and 425.7MB in the end (delta: 274.7MB). Free memory was 62.3MB in the beginning and 126.7MB in the end (delta: -64.4MB). Peak memory consumption was 224.0MB. Max. memory is 16.1GB. [2021-11-01 09:32:21,033 INFO L158 Benchmark]: TraceAbstraction took 58625.46ms. Allocated memory was 425.7MB in the beginning and 614.5MB in the end (delta: 188.7MB). Free memory was 126.7MB in the beginning and 277.3MB in the end (delta: -150.6MB). Peak memory consumption was 39.0MB. Max. memory is 16.1GB. [2021-11-01 09:32:21,033 INFO L158 Benchmark]: Witness Printer took 642.16ms. Allocated memory is still 614.5MB. Free memory was 277.3MB in the beginning and 176.2MB in the end (delta: 101.1MB). Peak memory consumption was 114.8MB. Max. memory is 16.1GB. [2021-11-01 09:32:21,035 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19ms. Allocated memory is still 86.0MB. Free memory was 59.5MB in the beginning and 59.5MB in the end (delta: 29.1kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 2133.14ms. Allocated memory was 109.1MB in the beginning and 151.0MB in the end (delta: 41.9MB). Free memory was 81.0MB in the beginning and 81.2MB in the end (delta: -199.5kB). Peak memory consumption was 63.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 238.20ms. Allocated memory is still 151.0MB. Free memory was 81.2MB in the beginning and 69.9MB in the end (delta: 11.3MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Preprocessor took 128.25ms. Allocated memory is still 151.0MB. Free memory was 69.9MB in the beginning and 62.3MB in the end (delta: 7.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * RCFGBuilder took 5406.31ms. Allocated memory was 151.0MB in the beginning and 425.7MB in the end (delta: 274.7MB). Free memory was 62.3MB in the beginning and 126.7MB in the end (delta: -64.4MB). Peak memory consumption was 224.0MB. Max. memory is 16.1GB. * TraceAbstraction took 58625.46ms. Allocated memory was 425.7MB in the beginning and 614.5MB in the end (delta: 188.7MB). Free memory was 126.7MB in the beginning and 277.3MB in the end (delta: -150.6MB). Peak memory consumption was 39.0MB. Max. memory is 16.1GB. * Witness Printer took 642.16ms. Allocated memory is still 614.5MB. Free memory was 277.3MB in the beginning and 176.2MB in the end (delta: 101.1MB). Peak memory consumption was 114.8MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.00ms ErrorAutomatonConstructionTimeTotal, 0.00ms FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.00ms ErrorAutomatonConstructionTimeAvg, 0.00ms ErrorAutomatonDifferenceTimeAvg, 0.00ms ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 223]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 223]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 223]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 223]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 74 locations, 4 error locations. Started 1 CEGAR loops. OverallTime: 58544.04ms, OverallIterations: 13, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 32.61ms, AutomataDifference: 43553.33ms, DeadEndRemovalTime: 0.00ms, HoareAnnotationTime: 837.62ms, InitialAbstractionConstructionTime: 10.42ms, PartialOrderReductionTime: 0.00ms, HoareTripleCheckerStatistics: 13 mSolverCounterUnknown, 1035 SdHoareTripleChecker+Valid, 41955.75ms IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1035 mSDsluCounter, 0 SdHoareTripleChecker+Invalid, 39036.37ms Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1743 mSDsCounter, 64 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 3297 IncrementalHoareTripleChecker+Invalid, 3374 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 64 mSolverCounterUnsat, 0 mSDtfsCounter, 3297 mSolverCounterSat, 56.33ms SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 96 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 67 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 2628.15ms Time, 0.00ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=90occurred in iteration=8, InterpolantAutomatonStates: 71, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.00ms DumpTime, AutomataMinimizationStatistics: 74.48ms AutomataMinimizationTime, 13 MinimizatonAttempts, 146 StatesRemovedByMinimization, 6 NontrivialMinimizations, HoareAnnotationStatistics: 0.00ms HoareAnnotationTime, 6 LocationsWithAnnotation, 6 PreInvPairs, 12 NumberOfFragments, 213 HoareAnnotationTreeSize, 6 FomulaSimplifications, 414 FormulaSimplificationTreeSizeReduction, 35.43ms HoareSimplificationTime, 6 FomulaSimplificationsInter, 25 FormulaSimplificationTreeSizeReductionInter, 793.92ms HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 193.20ms SsaConstructionTime, 9322.02ms SatisfiabilityAnalysisTime, 4207.59ms InterpolantComputationTime, 557 NumberOfCodeBlocks, 557 NumberOfCodeBlocksAsserted, 13 NumberOfCheckSat, 544 ConstructedInterpolants, 0 QuantifiedInterpolants, 1913 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 13 InterpolantComputations, 13 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 4 specifications checked. All of them hold - InvariantResult [Line: 6876]: Loop Invariant Derived loop invariant: (((!(\result == 0) && buf == 0) && !(buf == 0)) && buf == 0) && buf == buf - InvariantResult [Line: 7179]: Loop Invariant [2021-11-01 09:32:21,044 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2021-11-01 09:32:21,045 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2021-11-01 09:32:21,045 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2021-11-01 09:32:21,045 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2021-11-01 09:32:21,046 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2021-11-01 09:32:21,046 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base Derived loop invariant: (((((((((!(\result == 0) && buf == 0) && !(buf == 0)) && buf == 0) && buf == buf) && !(0 == #memory_$Pointer$[buf][buf + 8])) && buf == 0) && buf == buf) && buf == buf) && buf == buf) || (((((((((buf == 0 && !(\result == 0)) && \result <= 0) && buf == 0) && !(buf == 0)) && 0 <= \result) && buf == 0) && !(#memory_$Pointer$[buf][8] == 0)) && !(0 == #memory_$Pointer$[buf][buf + 8])) && buf == buf) - InvariantResult [Line: 8779]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 6883]: Loop Invariant Derived loop invariant: ((buf == 0 && !(buf == 0)) && buf == 0) && buf == buf - InvariantResult [Line: 261]: Loop Invariant Derived loop invariant: ((buf == 0 && !(buf == 0)) && buf == 0) && buf == buf - InvariantResult [Line: 7179]: Loop Invariant [2021-11-01 09:32:21,048 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2021-11-01 09:32:21,048 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2021-11-01 09:32:21,048 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2021-11-01 09:32:21,049 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2021-11-01 09:32:21,049 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2021-11-01 09:32:21,049 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base Derived loop invariant: (((((((!(\result == 0) && buf == 0) && !(buf == 0)) && buf == 0) && buf == buf) && !(0 == #memory_$Pointer$[buf][buf + 8])) && buf == buf) && buf == buf) || (((((((((buf == 0 && !(\result == 0)) && \result <= 0) && buf == 0) && !(buf == 0)) && 0 <= \result) && buf == 0) && !(#memory_$Pointer$[buf][8] == 0)) && !(0 == #memory_$Pointer$[buf][buf + 8])) && buf == buf) RESULT: Ultimate proved your program to be correct! [2021-11-01 09:32:21,139 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request...