./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/aws-c-common/memset_override_0_harness.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 5f08f0f0 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/aws-c-common/memset_override_0_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 5db0d3c47797ff0a215821e8d5fa38ab9190be93d125d3ffd24136b371560f6c --- Real Ultimate output --- This is Ultimate 0.2.1-wip.dd.seqcomp-5f08f0f [2021-11-05 13:47:59,299 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-05 13:47:59,302 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-05 13:47:59,335 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-05 13:47:59,336 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-05 13:47:59,339 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-05 13:47:59,341 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-05 13:47:59,345 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-05 13:47:59,347 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-05 13:47:59,351 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-05 13:47:59,352 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-05 13:47:59,353 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-05 13:47:59,353 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-05 13:47:59,355 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-05 13:47:59,357 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-05 13:47:59,363 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-05 13:47:59,366 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-05 13:47:59,367 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-05 13:47:59,369 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-05 13:47:59,373 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-05 13:47:59,375 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-05 13:47:59,376 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-05 13:47:59,377 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-05 13:47:59,378 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-05 13:47:59,383 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-05 13:47:59,385 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-05 13:47:59,385 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-05 13:47:59,386 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-05 13:47:59,387 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-05 13:47:59,388 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-05 13:47:59,388 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-05 13:47:59,388 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-05 13:47:59,389 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-05 13:47:59,390 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-05 13:47:59,391 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-05 13:47:59,391 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-05 13:47:59,392 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-05 13:47:59,392 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-05 13:47:59,392 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-05 13:47:59,393 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-05 13:47:59,394 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-05 13:47:59,397 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-11-05 13:47:59,419 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-05 13:47:59,419 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-05 13:47:59,420 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-05 13:47:59,420 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-05 13:47:59,422 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-05 13:47:59,422 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-05 13:47:59,422 INFO L138 SettingsManager]: * Use SBE=true [2021-11-05 13:47:59,422 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-05 13:47:59,422 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-05 13:47:59,422 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-05 13:47:59,423 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-05 13:47:59,423 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-05 13:47:59,424 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-05 13:47:59,424 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-05 13:47:59,424 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-05 13:47:59,424 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-05 13:47:59,424 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-05 13:47:59,424 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-05 13:47:59,425 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-05 13:47:59,425 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-05 13:47:59,425 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-05 13:47:59,425 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-05 13:47:59,425 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-05 13:47:59,425 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-05 13:47:59,425 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-05 13:47:59,426 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-05 13:47:59,426 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-05 13:47:59,426 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-05 13:47:59,426 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-05 13:47:59,426 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5db0d3c47797ff0a215821e8d5fa38ab9190be93d125d3ffd24136b371560f6c [2021-11-05 13:47:59,702 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-05 13:47:59,720 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-05 13:47:59,722 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-05 13:47:59,722 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-05 13:47:59,723 INFO L275 PluginConnector]: CDTParser initialized [2021-11-05 13:47:59,724 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/aws-c-common/memset_override_0_harness.i [2021-11-05 13:47:59,766 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bf211dc8e/f564c7d588ec4657a6129556cc2137c3/FLAG69d094a35 [2021-11-05 13:48:00,364 INFO L306 CDTParser]: Found 1 translation units. [2021-11-05 13:48:00,365 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/memset_override_0_harness.i [2021-11-05 13:48:00,379 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bf211dc8e/f564c7d588ec4657a6129556cc2137c3/FLAG69d094a35 [2021-11-05 13:48:00,814 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bf211dc8e/f564c7d588ec4657a6129556cc2137c3 [2021-11-05 13:48:00,816 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-05 13:48:00,818 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-05 13:48:00,820 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-05 13:48:00,820 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-05 13:48:00,822 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-05 13:48:00,823 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.11 01:48:00" (1/1) ... [2021-11-05 13:48:00,823 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3037d8b1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 01:48:00, skipping insertion in model container [2021-11-05 13:48:00,824 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.11 01:48:00" (1/1) ... [2021-11-05 13:48:00,828 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-05 13:48:00,870 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-05 13:48:01,013 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/memset_override_0_harness.i[4491,4504] [2021-11-05 13:48:01,016 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/memset_override_0_harness.i[4551,4564] [2021-11-05 13:48:01,028 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-05 13:48:01,030 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-05 13:48:01,417 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-05 13:48:01,418 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-05 13:48:01,418 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-05 13:48:01,418 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-05 13:48:01,419 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-05 13:48:01,427 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-05 13:48:01,427 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-05 13:48:01,430 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-05 13:48:01,431 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-05 13:48:01,432 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-05 13:48:01,433 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-05 13:48:01,433 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-05 13:48:01,433 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-05 13:48:01,512 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-05 13:48:01,512 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-05 13:48:01,513 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-05 13:48:01,514 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-05 13:48:01,515 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-05 13:48:01,515 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-05 13:48:01,516 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-05 13:48:01,516 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-05 13:48:01,517 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-05 13:48:01,517 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-05 13:48:01,558 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-05 13:48:01,564 INFO L203 MainTranslator]: Completed pre-run [2021-11-05 13:48:01,572 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/memset_override_0_harness.i[4491,4504] [2021-11-05 13:48:01,572 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/memset_override_0_harness.i[4551,4564] [2021-11-05 13:48:01,573 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-05 13:48:01,574 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-05 13:48:01,597 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-05 13:48:01,598 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-05 13:48:01,598 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-05 13:48:01,598 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-05 13:48:01,599 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-05 13:48:01,604 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-05 13:48:01,604 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-05 13:48:01,605 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-05 13:48:01,605 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-05 13:48:01,606 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-05 13:48:01,607 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-05 13:48:01,607 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-05 13:48:01,607 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-05 13:48:01,618 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-05 13:48:01,633 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-05 13:48:01,634 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-05 13:48:01,634 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-05 13:48:01,635 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-05 13:48:01,635 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-05 13:48:01,636 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-05 13:48:01,636 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-05 13:48:01,636 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-05 13:48:01,637 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-05 13:48:01,655 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-05 13:48:01,796 INFO L208 MainTranslator]: Completed translation [2021-11-05 13:48:01,796 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 01:48:01 WrapperNode [2021-11-05 13:48:01,796 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-05 13:48:01,797 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-05 13:48:01,797 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-05 13:48:01,797 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-05 13:48:01,801 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 01:48:01" (1/1) ... [2021-11-05 13:48:01,853 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 01:48:01" (1/1) ... [2021-11-05 13:48:01,882 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-05 13:48:01,882 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-05 13:48:01,883 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-05 13:48:01,883 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-05 13:48:01,892 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 01:48:01" (1/1) ... [2021-11-05 13:48:01,892 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 01:48:01" (1/1) ... [2021-11-05 13:48:01,902 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 01:48:01" (1/1) ... [2021-11-05 13:48:01,903 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 01:48:01" (1/1) ... [2021-11-05 13:48:01,916 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 01:48:01" (1/1) ... [2021-11-05 13:48:01,926 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 01:48:01" (1/1) ... [2021-11-05 13:48:01,927 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 01:48:01" (1/1) ... [2021-11-05 13:48:01,929 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-05 13:48:01,930 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-05 13:48:01,935 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-05 13:48:01,935 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-05 13:48:01,936 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 01:48:01" (1/1) ... [2021-11-05 13:48:01,940 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-05 13:48:01,947 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-05 13:48:01,957 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-05 13:48:01,984 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-05 13:48:01,988 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-05 13:48:01,989 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-05 13:48:01,989 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-05 13:48:01,993 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-05 13:48:01,994 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-05 13:48:01,994 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-05 13:48:01,994 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-05 13:48:02,294 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-05 13:48:02,297 INFO L299 CfgBuilder]: Removed 44 assume(true) statements. [2021-11-05 13:48:02,298 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.11 01:48:02 BoogieIcfgContainer [2021-11-05 13:48:02,299 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-05 13:48:02,300 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-05 13:48:02,300 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-05 13:48:02,305 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-05 13:48:02,305 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 05.11 01:48:00" (1/3) ... [2021-11-05 13:48:02,306 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@9a7f51 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.11 01:48:02, skipping insertion in model container [2021-11-05 13:48:02,306 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 01:48:01" (2/3) ... [2021-11-05 13:48:02,306 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@9a7f51 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.11 01:48:02, skipping insertion in model container [2021-11-05 13:48:02,307 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.11 01:48:02" (3/3) ... [2021-11-05 13:48:02,307 INFO L111 eAbstractionObserver]: Analyzing ICFG memset_override_0_harness.i [2021-11-05 13:48:02,310 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-05 13:48:02,311 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 5 error locations. [2021-11-05 13:48:02,346 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-05 13:48:02,350 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-11-05 13:48:02,351 INFO L340 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2021-11-05 13:48:02,359 INFO L276 IsEmpty]: Start isEmpty. Operand has 53 states, 47 states have (on average 1.5106382978723405) internal successors, (71), 52 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 13:48:02,362 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2021-11-05 13:48:02,363 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 13:48:02,363 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-05 13:48:02,364 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2021-11-05 13:48:02,369 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 13:48:02,370 INFO L85 PathProgramCache]: Analyzing trace with hash -2009978325, now seen corresponding path program 1 times [2021-11-05 13:48:02,375 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 13:48:02,376 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [810379213] [2021-11-05 13:48:02,377 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 13:48:02,377 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 13:48:02,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 13:48:02,566 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-05 13:48:02,566 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 13:48:02,567 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [810379213] [2021-11-05 13:48:02,567 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [810379213] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 13:48:02,567 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 13:48:02,568 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-05 13:48:02,569 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1906722155] [2021-11-05 13:48:02,569 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 13:48:02,572 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-05 13:48:02,573 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 13:48:02,597 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-05 13:48:02,598 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-05 13:48:02,600 INFO L87 Difference]: Start difference. First operand has 53 states, 47 states have (on average 1.5106382978723405) internal successors, (71), 52 states have internal predecessors, (71), 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 8.0) internal successors, (16), 2 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 13:48:02,616 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 13:48:02,616 INFO L93 Difference]: Finished difference Result 103 states and 138 transitions. [2021-11-05 13:48:02,617 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-05 13:48:02,618 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 8.0) internal successors, (16), 2 states have internal predecessors, (16), 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 16 [2021-11-05 13:48:02,618 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 13:48:02,630 INFO L225 Difference]: With dead ends: 103 [2021-11-05 13:48:02,631 INFO L226 Difference]: Without dead ends: 47 [2021-11-05 13:48:02,633 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.04ms TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-05 13:48:02,635 INFO L933 BasicCegarLoop]: 57 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.00ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 57 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 1.16ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.00ms IncrementalHoareTripleChecker+Time [2021-11-05 13:48:02,636 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 57 Invalid, 0 Unknown, 0 Unchecked, 1.16ms Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.00ms Time] [2021-11-05 13:48:02,654 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47 states. [2021-11-05 13:48:02,662 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47 to 47. [2021-11-05 13:48:02,663 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 47 states, 42 states have (on average 1.1904761904761905) internal successors, (50), 46 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 13:48:02,664 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 47 states and 50 transitions. [2021-11-05 13:48:02,665 INFO L78 Accepts]: Start accepts. Automaton has 47 states and 50 transitions. Word has length 16 [2021-11-05 13:48:02,665 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 13:48:02,665 INFO L470 AbstractCegarLoop]: Abstraction has 47 states and 50 transitions. [2021-11-05 13:48:02,665 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 8.0) internal successors, (16), 2 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 13:48:02,665 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 50 transitions. [2021-11-05 13:48:02,666 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2021-11-05 13:48:02,666 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 13:48:02,666 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-05 13:48:02,666 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-05 13:48:02,666 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2021-11-05 13:48:02,667 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 13:48:02,667 INFO L85 PathProgramCache]: Analyzing trace with hash 329723105, now seen corresponding path program 1 times [2021-11-05 13:48:02,667 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 13:48:02,667 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1896954104] [2021-11-05 13:48:02,667 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 13:48:02,668 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 13:48:02,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 13:48:02,817 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-05 13:48:02,818 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 13:48:02,818 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1896954104] [2021-11-05 13:48:02,818 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1896954104] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 13:48:02,818 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 13:48:02,819 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-05 13:48:02,819 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1015432195] [2021-11-05 13:48:02,819 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 13:48:02,820 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-05 13:48:02,820 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 13:48:02,821 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-05 13:48:02,821 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-11-05 13:48:02,821 INFO L87 Difference]: Start difference. First operand 47 states and 50 transitions. Second operand has 6 states, 6 states have (on average 2.6666666666666665) internal successors, (16), 6 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 13:48:02,911 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 13:48:02,911 INFO L93 Difference]: Finished difference Result 47 states and 50 transitions. [2021-11-05 13:48:02,912 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-05 13:48:02,912 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 2.6666666666666665) internal successors, (16), 6 states have internal predecessors, (16), 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 16 [2021-11-05 13:48:02,912 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 13:48:02,913 INFO L225 Difference]: With dead ends: 47 [2021-11-05 13:48:02,913 INFO L226 Difference]: Without dead ends: 45 [2021-11-05 13:48:02,916 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 42.48ms TimeCoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2021-11-05 13:48:02,917 INFO L933 BasicCegarLoop]: 42 mSDtfsCounter, 70 mSDsluCounter, 76 mSDsCounter, 0 mSdLazyCounter, 39 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 30.25ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 70 SdHoareTripleChecker+Valid, 118 SdHoareTripleChecker+Invalid, 39 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 3.13ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 39 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 40.19ms IncrementalHoareTripleChecker+Time [2021-11-05 13:48:02,918 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [70 Valid, 118 Invalid, 39 Unknown, 0 Unchecked, 3.13ms Time], IncrementalHoareTripleChecker [0 Valid, 39 Invalid, 0 Unknown, 0 Unchecked, 40.19ms Time] [2021-11-05 13:48:02,921 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45 states. [2021-11-05 13:48:02,927 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45 to 45. [2021-11-05 13:48:02,928 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 45 states, 41 states have (on average 1.170731707317073) internal successors, (48), 44 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 13:48:02,931 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 48 transitions. [2021-11-05 13:48:02,931 INFO L78 Accepts]: Start accepts. Automaton has 45 states and 48 transitions. Word has length 16 [2021-11-05 13:48:02,932 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 13:48:02,932 INFO L470 AbstractCegarLoop]: Abstraction has 45 states and 48 transitions. [2021-11-05 13:48:02,932 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 2.6666666666666665) internal successors, (16), 6 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 13:48:02,933 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 48 transitions. [2021-11-05 13:48:02,934 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2021-11-05 13:48:02,934 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 13:48:02,934 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-05 13:48:02,934 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-05 13:48:02,934 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2021-11-05 13:48:02,935 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 13:48:02,935 INFO L85 PathProgramCache]: Analyzing trace with hash -963549789, now seen corresponding path program 1 times [2021-11-05 13:48:02,935 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 13:48:02,936 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1903386653] [2021-11-05 13:48:02,936 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 13:48:02,936 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 13:48:03,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-05 13:48:03,035 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-05 13:48:03,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-05 13:48:03,111 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-05 13:48:03,111 INFO L628 BasicCegarLoop]: Counterexample is feasible [2021-11-05 13:48:03,112 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (4 of 5 remaining) [2021-11-05 13:48:03,113 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (3 of 5 remaining) [2021-11-05 13:48:03,113 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (2 of 5 remaining) [2021-11-05 13:48:03,114 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION (1 of 5 remaining) [2021-11-05 13:48:03,114 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (0 of 5 remaining) [2021-11-05 13:48:03,114 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-05 13:48:03,118 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2021-11-05 13:48:03,121 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-11-05 13:48:03,159 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 05.11 01:48:03 BoogieIcfgContainer [2021-11-05 13:48:03,159 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-11-05 13:48:03,160 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-05 13:48:03,160 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-05 13:48:03,160 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-05 13:48:03,161 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.11 01:48:02" (3/4) ... [2021-11-05 13:48:03,164 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-11-05 13:48:03,165 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-05 13:48:03,165 INFO L158 Benchmark]: Toolchain (without parser) took 2347.30ms. Allocated memory was 50.3MB in the beginning and 88.1MB in the end (delta: 37.7MB). Free memory was 31.6MB in the beginning and 38.7MB in the end (delta: -7.1MB). Peak memory consumption was 30.4MB. Max. memory is 16.1GB. [2021-11-05 13:48:03,166 INFO L158 Benchmark]: CDTParser took 0.17ms. Allocated memory is still 50.3MB. Free memory was 31.8MB in the beginning and 31.8MB in the end (delta: 47.6kB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-05 13:48:03,168 INFO L158 Benchmark]: CACSL2BoogieTranslator took 976.69ms. Allocated memory was 50.3MB in the beginning and 73.4MB in the end (delta: 23.1MB). Free memory was 31.5MB in the beginning and 39.0MB in the end (delta: -7.5MB). Peak memory consumption was 29.4MB. Max. memory is 16.1GB. [2021-11-05 13:48:03,171 INFO L158 Benchmark]: Boogie Procedure Inliner took 85.08ms. Allocated memory is still 73.4MB. Free memory was 39.0MB in the beginning and 33.8MB in the end (delta: 5.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2021-11-05 13:48:03,172 INFO L158 Benchmark]: Boogie Preprocessor took 47.07ms. Allocated memory is still 73.4MB. Free memory was 33.8MB in the beginning and 31.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-05 13:48:03,172 INFO L158 Benchmark]: RCFGBuilder took 368.64ms. Allocated memory is still 73.4MB. Free memory was 31.7MB in the beginning and 29.3MB in the end (delta: 2.4MB). Peak memory consumption was 8.3MB. Max. memory is 16.1GB. [2021-11-05 13:48:03,172 INFO L158 Benchmark]: TraceAbstraction took 859.65ms. Allocated memory was 73.4MB in the beginning and 88.1MB in the end (delta: 14.7MB). Free memory was 28.7MB in the beginning and 38.7MB in the end (delta: -10.1MB). Peak memory consumption was 5.7MB. Max. memory is 16.1GB. [2021-11-05 13:48:03,172 INFO L158 Benchmark]: Witness Printer took 5.04ms. Allocated memory is still 88.1MB. Free memory is still 38.7MB. There was no memory consumed. Max. memory is 16.1GB. [2021-11-05 13:48:03,173 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17ms. Allocated memory is still 50.3MB. Free memory was 31.8MB in the beginning and 31.8MB in the end (delta: 47.6kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 976.69ms. Allocated memory was 50.3MB in the beginning and 73.4MB in the end (delta: 23.1MB). Free memory was 31.5MB in the beginning and 39.0MB in the end (delta: -7.5MB). Peak memory consumption was 29.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 85.08ms. Allocated memory is still 73.4MB. Free memory was 39.0MB in the beginning and 33.8MB in the end (delta: 5.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 47.07ms. Allocated memory is still 73.4MB. Free memory was 33.8MB in the beginning and 31.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 368.64ms. Allocated memory is still 73.4MB. Free memory was 31.7MB in the beginning and 29.3MB in the end (delta: 2.4MB). Peak memory consumption was 8.3MB. Max. memory is 16.1GB. * TraceAbstraction took 859.65ms. Allocated memory was 73.4MB in the beginning and 88.1MB in the end (delta: 14.7MB). Free memory was 28.7MB in the beginning and 38.7MB in the end (delta: -10.1MB). Peak memory consumption was 5.7MB. Max. memory is 16.1GB. * Witness Printer took 5.04ms. Allocated memory is still 88.1MB. Free memory is still 38.7MB. There was no memory consumed. Max. memory is 16.1GB. * 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 - UnprovableResult [Line: 223]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: overapproximation of bitwiseAnd at line 5885. Possible FailurePath: [L5906] short d1[160]; [L5907] short d2[160]; [L5908] int c = __VERIFIER_nondet_int(); [L211] COND FALSE !(!cond) [L5911] unsigned size = __VERIFIER_nondet_uint(); [L211] COND FALSE !(!cond) [L211] COND FALSE !(!cond) [L211] COND FALSE !(!cond) [L5871] COND FALSE !(n > 0) [L5876] return s; [L211] COND FALSE !(!cond) [L223] COND FALSE !(!cond) [L5884] size_t num_uint64s = n >> 3; [L5885] size_t rem = n & 0x7; [L223] COND TRUE !cond [L223] reach_error() - UnprovableResult [Line: 223]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 223]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 223]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 223]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 53 locations, 5 error locations. Started 1 CEGAR loops. OverallTime: 774.65ms, OverallIterations: 3, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 7.35ms, AutomataDifference: 164.58ms, DeadEndRemovalTime: 0.00ms, HoareAnnotationTime: 0.00ms, InitialAbstractionConstructionTime: 6.06ms, PartialOrderReductionTime: 0.00ms, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 70 SdHoareTripleChecker+Valid, 40.19ms IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 70 mSDsluCounter, 175 SdHoareTripleChecker+Invalid, 30.25ms Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 76 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 39 IncrementalHoareTripleChecker+Invalid, 39 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 99 mSDtfsCounter, 39 mSolverCounterSat, 4.29ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 11 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 42.52ms Time, 0.00ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=53occurred in iteration=0, InterpolantAutomatonStates: 9, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.00ms DumpTime, AutomataMinimizationStatistics: 28.43ms AutomataMinimizationTime, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 9.85ms SsaConstructionTime, 143.66ms SatisfiabilityAnalysisTime, 169.54ms InterpolantComputationTime, 50 NumberOfCodeBlocks, 50 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 30 ConstructedInterpolants, 0 QuantifiedInterpolants, 75 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 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 RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2021-11-05 13:48:03,221 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### 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/memset_override_0_harness.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Bitvector.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 5db0d3c47797ff0a215821e8d5fa38ab9190be93d125d3ffd24136b371560f6c --- Real Ultimate output --- This is Ultimate 0.2.1-wip.dd.seqcomp-5f08f0f [2021-11-05 13:48:04,803 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-05 13:48:04,805 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-05 13:48:04,828 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-05 13:48:04,829 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-05 13:48:04,830 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-05 13:48:04,832 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-05 13:48:04,835 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-05 13:48:04,836 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-05 13:48:04,837 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-05 13:48:04,838 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-05 13:48:04,839 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-05 13:48:04,845 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-05 13:48:04,846 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-05 13:48:04,847 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-05 13:48:04,848 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-05 13:48:04,848 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-05 13:48:04,849 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-05 13:48:04,850 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-05 13:48:04,851 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-05 13:48:04,852 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-05 13:48:04,853 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-05 13:48:04,854 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-05 13:48:04,855 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-05 13:48:04,856 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-05 13:48:04,857 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-05 13:48:04,857 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-05 13:48:04,858 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-05 13:48:04,858 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-05 13:48:04,859 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-05 13:48:04,859 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-05 13:48:04,859 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-05 13:48:04,860 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-05 13:48:04,861 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-05 13:48:04,861 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-05 13:48:04,861 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-05 13:48:04,862 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-05 13:48:04,862 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-05 13:48:04,863 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-05 13:48:04,863 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-05 13:48:04,864 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-05 13:48:04,864 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Bitvector.epf [2021-11-05 13:48:04,879 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-05 13:48:04,895 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-05 13:48:04,895 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-05 13:48:04,895 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-05 13:48:04,896 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-05 13:48:04,896 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-05 13:48:04,897 INFO L138 SettingsManager]: * Use SBE=true [2021-11-05 13:48:04,897 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-05 13:48:04,897 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-05 13:48:04,897 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-05 13:48:04,897 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-05 13:48:04,897 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-05 13:48:04,898 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-05 13:48:04,898 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-05 13:48:04,898 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-05 13:48:04,898 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-05 13:48:04,898 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-05 13:48:04,898 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-05 13:48:04,898 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-05 13:48:04,899 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-05 13:48:04,899 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-05 13:48:04,899 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-05 13:48:04,899 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-05 13:48:04,899 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-05 13:48:04,899 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2021-11-05 13:48:04,900 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-05 13:48:04,900 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-05 13:48:04,900 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-05 13:48:04,900 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-05 13:48:04,900 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-05 13:48:04,900 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-05 13:48:04,900 INFO L138 SettingsManager]: * Logic for external solver=AUFBV 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5db0d3c47797ff0a215821e8d5fa38ab9190be93d125d3ffd24136b371560f6c [2021-11-05 13:48:05,163 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-05 13:48:05,184 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-05 13:48:05,186 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-05 13:48:05,187 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-05 13:48:05,187 INFO L275 PluginConnector]: CDTParser initialized [2021-11-05 13:48:05,188 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/aws-c-common/memset_override_0_harness.i [2021-11-05 13:48:05,242 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/38d463802/8a8f6ec578da4d269a026e62395fc0ac/FLAGdf76bd3ad [2021-11-05 13:48:05,730 INFO L306 CDTParser]: Found 1 translation units. [2021-11-05 13:48:05,730 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/memset_override_0_harness.i [2021-11-05 13:48:05,767 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/38d463802/8a8f6ec578da4d269a026e62395fc0ac/FLAGdf76bd3ad [2021-11-05 13:48:06,012 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/38d463802/8a8f6ec578da4d269a026e62395fc0ac [2021-11-05 13:48:06,016 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-05 13:48:06,020 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-05 13:48:06,023 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-05 13:48:06,024 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-05 13:48:06,027 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-05 13:48:06,028 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.11 01:48:06" (1/1) ... [2021-11-05 13:48:06,031 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2b2c96fb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 01:48:06, skipping insertion in model container [2021-11-05 13:48:06,031 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.11 01:48:06" (1/1) ... [2021-11-05 13:48:06,037 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-05 13:48:06,117 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-05 13:48:06,321 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/memset_override_0_harness.i[4491,4504] [2021-11-05 13:48:06,327 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/memset_override_0_harness.i[4551,4564] [2021-11-05 13:48:06,342 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-05 13:48:06,347 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-05 13:48:06,893 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-05 13:48:06,894 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-05 13:48:06,894 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-05 13:48:06,894 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-05 13:48:06,895 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-05 13:48:06,902 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-05 13:48:06,902 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-05 13:48:06,910 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-05 13:48:06,912 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-05 13:48:06,915 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-05 13:48:06,918 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-05 13:48:06,919 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-05 13:48:06,920 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-05 13:48:07,043 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-05 13:48:07,044 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-05 13:48:07,045 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-05 13:48:07,047 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-05 13:48:07,048 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-05 13:48:07,049 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-05 13:48:07,051 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-05 13:48:07,051 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-05 13:48:07,052 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-05 13:48:07,054 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-05 13:48:07,120 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-05 13:48:07,137 INFO L203 MainTranslator]: Completed pre-run [2021-11-05 13:48:07,146 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/memset_override_0_harness.i[4491,4504] [2021-11-05 13:48:07,147 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/memset_override_0_harness.i[4551,4564] [2021-11-05 13:48:07,149 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-05 13:48:07,149 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-05 13:48:07,174 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-05 13:48:07,174 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-05 13:48:07,175 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-05 13:48:07,175 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-05 13:48:07,176 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-05 13:48:07,182 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-05 13:48:07,182 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-05 13:48:07,183 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-05 13:48:07,184 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-05 13:48:07,184 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-05 13:48:07,185 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-05 13:48:07,185 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-05 13:48:07,199 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-05 13:48:07,236 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-05 13:48:07,237 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-05 13:48:07,237 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-05 13:48:07,242 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-05 13:48:07,242 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-05 13:48:07,243 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-05 13:48:07,243 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-05 13:48:07,243 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-05 13:48:07,243 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-05 13:48:07,244 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-05 13:48:07,255 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-05 13:48:07,378 INFO L208 MainTranslator]: Completed translation [2021-11-05 13:48:07,379 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 01:48:07 WrapperNode [2021-11-05 13:48:07,379 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-05 13:48:07,380 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-05 13:48:07,380 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-05 13:48:07,380 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-05 13:48:07,384 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 01:48:07" (1/1) ... [2021-11-05 13:48:07,432 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 01:48:07" (1/1) ... [2021-11-05 13:48:07,477 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-05 13:48:07,478 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-05 13:48:07,478 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-05 13:48:07,478 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-05 13:48:07,484 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 01:48:07" (1/1) ... [2021-11-05 13:48:07,485 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 01:48:07" (1/1) ... [2021-11-05 13:48:07,493 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 01:48:07" (1/1) ... [2021-11-05 13:48:07,493 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 01:48:07" (1/1) ... [2021-11-05 13:48:07,504 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 01:48:07" (1/1) ... [2021-11-05 13:48:07,521 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 01:48:07" (1/1) ... [2021-11-05 13:48:07,524 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 01:48:07" (1/1) ... [2021-11-05 13:48:07,529 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-05 13:48:07,529 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-05 13:48:07,529 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-05 13:48:07,529 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-05 13:48:07,530 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 01:48:07" (1/1) ... [2021-11-05 13:48:07,551 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-05 13:48:07,560 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-05 13:48:07,594 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-05 13:48:07,648 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-05 13:48:07,665 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-05 13:48:07,666 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-05 13:48:07,666 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-05 13:48:07,666 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-05 13:48:07,667 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2021-11-05 13:48:07,667 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-05 13:48:07,667 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8 [2021-11-05 13:48:07,668 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2021-11-05 13:48:08,071 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-05 13:48:08,072 INFO L299 CfgBuilder]: Removed 44 assume(true) statements. [2021-11-05 13:48:08,073 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.11 01:48:08 BoogieIcfgContainer [2021-11-05 13:48:08,074 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-05 13:48:08,075 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-05 13:48:08,075 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-05 13:48:08,077 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-05 13:48:08,077 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 05.11 01:48:06" (1/3) ... [2021-11-05 13:48:08,078 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@402dd9ff and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.11 01:48:08, skipping insertion in model container [2021-11-05 13:48:08,078 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 01:48:07" (2/3) ... [2021-11-05 13:48:08,078 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@402dd9ff and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.11 01:48:08, skipping insertion in model container [2021-11-05 13:48:08,078 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.11 01:48:08" (3/3) ... [2021-11-05 13:48:08,079 INFO L111 eAbstractionObserver]: Analyzing ICFG memset_override_0_harness.i [2021-11-05 13:48:08,083 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-05 13:48:08,083 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 5 error locations. [2021-11-05 13:48:08,112 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-05 13:48:08,117 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-11-05 13:48:08,117 INFO L340 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2021-11-05 13:48:08,126 INFO L276 IsEmpty]: Start isEmpty. Operand has 53 states, 47 states have (on average 1.5106382978723405) internal successors, (71), 52 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 13:48:08,129 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2021-11-05 13:48:08,130 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 13:48:08,130 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-05 13:48:08,131 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2021-11-05 13:48:08,134 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 13:48:08,135 INFO L85 PathProgramCache]: Analyzing trace with hash -2009978325, now seen corresponding path program 1 times [2021-11-05 13:48:08,143 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-05 13:48:08,143 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1893767605] [2021-11-05 13:48:08,144 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 13:48:08,144 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-05 13:48:08,144 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-11-05 13:48:08,146 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-05 13:48:08,179 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-11-05 13:48:08,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 13:48:08,308 INFO L263 TraceCheckSpWp]: Trace formula consists of 76 conjuncts, 1 conjunts are in the unsatisfiable core [2021-11-05 13:48:08,311 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-05 13:48:08,387 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-05 13:48:08,387 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-05 13:48:08,419 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-05 13:48:08,420 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-05 13:48:08,421 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1893767605] [2021-11-05 13:48:08,421 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1893767605] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-05 13:48:08,421 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-05 13:48:08,421 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2021-11-05 13:48:08,423 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1758199678] [2021-11-05 13:48:08,423 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-05 13:48:08,426 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-05 13:48:08,427 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-05 13:48:08,452 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-05 13:48:08,453 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-05 13:48:08,454 INFO L87 Difference]: Start difference. First operand has 53 states, 47 states have (on average 1.5106382978723405) internal successors, (71), 52 states have internal predecessors, (71), 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 8.0) internal successors, (16), 2 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 13:48:08,472 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 13:48:08,472 INFO L93 Difference]: Finished difference Result 103 states and 138 transitions. [2021-11-05 13:48:08,472 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-05 13:48:08,473 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 8.0) internal successors, (16), 2 states have internal predecessors, (16), 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 16 [2021-11-05 13:48:08,473 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 13:48:08,477 INFO L225 Difference]: With dead ends: 103 [2021-11-05 13:48:08,477 INFO L226 Difference]: Without dead ends: 47 [2021-11-05 13:48:08,479 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.16ms TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-05 13:48:08,482 INFO L933 BasicCegarLoop]: 57 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.00ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 57 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 1.18ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.00ms IncrementalHoareTripleChecker+Time [2021-11-05 13:48:08,483 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 57 Invalid, 0 Unknown, 0 Unchecked, 1.18ms Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.00ms Time] [2021-11-05 13:48:08,494 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47 states. [2021-11-05 13:48:08,504 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47 to 47. [2021-11-05 13:48:08,505 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 47 states, 42 states have (on average 1.1904761904761905) internal successors, (50), 46 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 13:48:08,506 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 47 states and 50 transitions. [2021-11-05 13:48:08,507 INFO L78 Accepts]: Start accepts. Automaton has 47 states and 50 transitions. Word has length 16 [2021-11-05 13:48:08,507 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 13:48:08,508 INFO L470 AbstractCegarLoop]: Abstraction has 47 states and 50 transitions. [2021-11-05 13:48:08,508 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 8.0) internal successors, (16), 2 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 13:48:08,508 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 50 transitions. [2021-11-05 13:48:08,513 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2021-11-05 13:48:08,513 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 13:48:08,514 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-05 13:48:08,525 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Ended with exit code 0 [2021-11-05 13:48:08,722 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-11-05 13:48:08,722 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2021-11-05 13:48:08,723 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 13:48:08,724 INFO L85 PathProgramCache]: Analyzing trace with hash 329723105, now seen corresponding path program 1 times [2021-11-05 13:48:08,724 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-05 13:48:08,724 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1892829286] [2021-11-05 13:48:08,725 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 13:48:08,725 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-05 13:48:08,725 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-11-05 13:48:08,740 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-05 13:48:08,741 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-11-05 13:48:08,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 13:48:08,829 INFO L263 TraceCheckSpWp]: Trace formula consists of 76 conjuncts, 8 conjunts are in the unsatisfiable core [2021-11-05 13:48:08,830 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-05 13:48:08,996 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-05 13:48:08,997 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-05 13:48:09,076 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-05 13:48:09,077 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-05 13:48:09,077 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1892829286] [2021-11-05 13:48:09,077 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1892829286] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-05 13:48:09,077 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-05 13:48:09,077 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 8 [2021-11-05 13:48:09,077 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2080073326] [2021-11-05 13:48:09,077 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-05 13:48:09,078 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-05 13:48:09,078 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-05 13:48:09,078 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-05 13:48:09,079 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-11-05 13:48:09,079 INFO L87 Difference]: Start difference. First operand 47 states and 50 transitions. Second operand has 8 states, 8 states have (on average 2.5) internal successors, (20), 8 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 13:48:09,168 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 13:48:09,168 INFO L93 Difference]: Finished difference Result 47 states and 50 transitions. [2021-11-05 13:48:09,168 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-11-05 13:48:09,168 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 2.5) internal successors, (20), 8 states have internal predecessors, (20), 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 16 [2021-11-05 13:48:09,168 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 13:48:09,169 INFO L225 Difference]: With dead ends: 47 [2021-11-05 13:48:09,169 INFO L226 Difference]: Without dead ends: 45 [2021-11-05 13:48:09,169 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 86.22ms TimeCoverageRelationStatistics Valid=42, Invalid=90, Unknown=0, NotChecked=0, Total=132 [2021-11-05 13:48:09,170 INFO L933 BasicCegarLoop]: 42 mSDtfsCounter, 128 mSDsluCounter, 94 mSDsCounter, 0 mSdLazyCounter, 50 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 40.93ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 128 SdHoareTripleChecker+Valid, 136 SdHoareTripleChecker+Invalid, 54 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 2.04ms SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 50 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 48.89ms IncrementalHoareTripleChecker+Time [2021-11-05 13:48:09,170 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [128 Valid, 136 Invalid, 54 Unknown, 0 Unchecked, 2.04ms Time], IncrementalHoareTripleChecker [4 Valid, 50 Invalid, 0 Unknown, 0 Unchecked, 48.89ms Time] [2021-11-05 13:48:09,171 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45 states. [2021-11-05 13:48:09,173 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45 to 45. [2021-11-05 13:48:09,173 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 45 states, 41 states have (on average 1.170731707317073) internal successors, (48), 44 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 13:48:09,174 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 48 transitions. [2021-11-05 13:48:09,174 INFO L78 Accepts]: Start accepts. Automaton has 45 states and 48 transitions. Word has length 16 [2021-11-05 13:48:09,174 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 13:48:09,174 INFO L470 AbstractCegarLoop]: Abstraction has 45 states and 48 transitions. [2021-11-05 13:48:09,174 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 2.5) internal successors, (20), 8 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 13:48:09,174 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 48 transitions. [2021-11-05 13:48:09,174 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2021-11-05 13:48:09,174 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 13:48:09,175 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-05 13:48:09,183 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Ended with exit code 0 [2021-11-05 13:48:09,383 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-11-05 13:48:09,384 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2021-11-05 13:48:09,384 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 13:48:09,384 INFO L85 PathProgramCache]: Analyzing trace with hash -963549789, now seen corresponding path program 1 times [2021-11-05 13:48:09,384 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-05 13:48:09,385 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [641233836] [2021-11-05 13:48:09,385 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 13:48:09,385 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-05 13:48:09,385 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-11-05 13:48:09,386 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-05 13:48:09,387 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-11-05 13:48:09,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 13:48:09,465 INFO L263 TraceCheckSpWp]: Trace formula consists of 81 conjuncts, 9 conjunts are in the unsatisfiable core [2021-11-05 13:48:09,466 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-05 13:48:09,662 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-05 13:48:09,663 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-05 13:48:09,770 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-05 13:48:09,771 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-05 13:48:09,771 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [641233836] [2021-11-05 13:48:09,771 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [641233836] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-05 13:48:09,771 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-05 13:48:09,771 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 9 [2021-11-05 13:48:09,771 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [754958102] [2021-11-05 13:48:09,771 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-05 13:48:09,771 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-11-05 13:48:09,772 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-05 13:48:09,772 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-11-05 13:48:09,772 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2021-11-05 13:48:09,772 INFO L87 Difference]: Start difference. First operand 45 states and 48 transitions. Second operand has 9 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 13:48:09,853 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 13:48:09,853 INFO L93 Difference]: Finished difference Result 45 states and 48 transitions. [2021-11-05 13:48:09,853 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-11-05 13:48:09,853 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 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 18 [2021-11-05 13:48:09,854 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 13:48:09,854 INFO L225 Difference]: With dead ends: 45 [2021-11-05 13:48:09,854 INFO L226 Difference]: Without dead ends: 43 [2021-11-05 13:48:09,854 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 26 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 146.25ms TimeCoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2021-11-05 13:48:09,855 INFO L933 BasicCegarLoop]: 40 mSDtfsCounter, 38 mSDsluCounter, 143 mSDsCounter, 0 mSdLazyCounter, 42 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 37.41ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 38 SdHoareTripleChecker+Valid, 183 SdHoareTripleChecker+Invalid, 53 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.85ms SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 42 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 8 IncrementalHoareTripleChecker+Unchecked, 46.38ms IncrementalHoareTripleChecker+Time [2021-11-05 13:48:09,855 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [38 Valid, 183 Invalid, 53 Unknown, 0 Unchecked, 0.85ms Time], IncrementalHoareTripleChecker [3 Valid, 42 Invalid, 0 Unknown, 8 Unchecked, 46.38ms Time] [2021-11-05 13:48:09,856 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43 states. [2021-11-05 13:48:09,858 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43 to 43. [2021-11-05 13:48:09,858 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 43 states, 40 states have (on average 1.15) internal successors, (46), 42 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 13:48:09,858 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 43 states and 46 transitions. [2021-11-05 13:48:09,858 INFO L78 Accepts]: Start accepts. Automaton has 43 states and 46 transitions. Word has length 18 [2021-11-05 13:48:09,858 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 13:48:09,858 INFO L470 AbstractCegarLoop]: Abstraction has 43 states and 46 transitions. [2021-11-05 13:48:09,859 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 13:48:09,859 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 46 transitions. [2021-11-05 13:48:09,859 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2021-11-05 13:48:09,859 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 13:48:09,859 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] [2021-11-05 13:48:09,873 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (4)] Ended with exit code 0 [2021-11-05 13:48:10,059 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-11-05 13:48:10,060 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2021-11-05 13:48:10,060 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 13:48:10,060 INFO L85 PathProgramCache]: Analyzing trace with hash -59070895, now seen corresponding path program 1 times [2021-11-05 13:48:10,061 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-05 13:48:10,061 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1305832910] [2021-11-05 13:48:10,061 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 13:48:10,061 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-05 13:48:10,061 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-11-05 13:48:10,062 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-05 13:48:10,066 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-11-05 13:48:10,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 13:48:10,140 INFO L263 TraceCheckSpWp]: Trace formula consists of 100 conjuncts, 9 conjunts are in the unsatisfiable core [2021-11-05 13:48:10,141 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-05 13:48:10,281 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-05 13:48:10,281 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-05 13:48:10,377 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-05 13:48:10,377 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-05 13:48:10,378 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1305832910] [2021-11-05 13:48:10,378 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1305832910] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-05 13:48:10,378 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-05 13:48:10,378 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 5 [2021-11-05 13:48:10,378 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1860647315] [2021-11-05 13:48:10,378 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-05 13:48:10,378 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-05 13:48:10,378 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-05 13:48:10,378 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-05 13:48:10,379 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-05 13:48:10,379 INFO L87 Difference]: Start difference. First operand 43 states and 46 transitions. Second operand has 5 states, 5 states have (on average 5.0) internal successors, (25), 5 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) [2021-11-05 13:48:10,424 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 13:48:10,424 INFO L93 Difference]: Finished difference Result 48 states and 51 transitions. [2021-11-05 13:48:10,424 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-05 13:48:10,424 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.0) internal successors, (25), 5 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 23 [2021-11-05 13:48:10,424 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 13:48:10,424 INFO L225 Difference]: With dead ends: 48 [2021-11-05 13:48:10,424 INFO L226 Difference]: Without dead ends: 46 [2021-11-05 13:48:10,425 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 22.83ms TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2021-11-05 13:48:10,425 INFO L933 BasicCegarLoop]: 39 mSDtfsCounter, 47 mSDsluCounter, 44 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 24.42ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 47 SdHoareTripleChecker+Valid, 83 SdHoareTripleChecker+Invalid, 29 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.37ms SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 28.59ms IncrementalHoareTripleChecker+Time [2021-11-05 13:48:10,425 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [47 Valid, 83 Invalid, 29 Unknown, 0 Unchecked, 0.37ms Time], IncrementalHoareTripleChecker [4 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 28.59ms Time] [2021-11-05 13:48:10,426 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46 states. [2021-11-05 13:48:10,432 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46 to 41. [2021-11-05 13:48:10,433 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41 states, 39 states have (on average 1.1282051282051282) internal successors, (44), 40 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 13:48:10,433 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 44 transitions. [2021-11-05 13:48:10,433 INFO L78 Accepts]: Start accepts. Automaton has 41 states and 44 transitions. Word has length 23 [2021-11-05 13:48:10,433 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 13:48:10,433 INFO L470 AbstractCegarLoop]: Abstraction has 41 states and 44 transitions. [2021-11-05 13:48:10,433 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.0) internal successors, (25), 5 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) [2021-11-05 13:48:10,433 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 44 transitions. [2021-11-05 13:48:10,434 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-11-05 13:48:10,434 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 13:48:10,434 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-05 13:48:10,445 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (5)] Ended with exit code 0 [2021-11-05 13:48:10,643 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-11-05 13:48:10,643 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2021-11-05 13:48:10,644 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 13:48:10,644 INFO L85 PathProgramCache]: Analyzing trace with hash 1945883960, now seen corresponding path program 1 times [2021-11-05 13:48:10,644 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-05 13:48:10,644 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2129717799] [2021-11-05 13:48:10,644 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 13:48:10,644 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-05 13:48:10,645 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-11-05 13:48:10,660 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-05 13:48:10,661 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-11-05 13:48:10,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 13:48:10,740 INFO L263 TraceCheckSpWp]: Trace formula consists of 112 conjuncts, 12 conjunts are in the unsatisfiable core [2021-11-05 13:48:10,741 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-05 13:48:10,919 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-05 13:48:10,919 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-05 13:48:10,990 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-05 13:48:10,990 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-05 13:48:10,990 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2129717799] [2021-11-05 13:48:10,990 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2129717799] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-05 13:48:10,990 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-05 13:48:10,991 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9, 5] imperfect sequences [] total 11 [2021-11-05 13:48:10,991 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [879611478] [2021-11-05 13:48:10,991 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-05 13:48:10,991 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-11-05 13:48:10,991 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-05 13:48:10,991 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-11-05 13:48:10,991 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2021-11-05 13:48:10,992 INFO L87 Difference]: Start difference. First operand 41 states and 44 transitions. Second operand has 11 states, 11 states have (on average 3.4545454545454546) internal successors, (38), 11 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 13:48:11,187 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 13:48:11,188 INFO L93 Difference]: Finished difference Result 78 states and 81 transitions. [2021-11-05 13:48:11,188 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-11-05 13:48:11,188 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 3.4545454545454546) internal successors, (38), 11 states have internal predecessors, (38), 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 28 [2021-11-05 13:48:11,188 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 13:48:11,189 INFO L225 Difference]: With dead ends: 78 [2021-11-05 13:48:11,189 INFO L226 Difference]: Without dead ends: 63 [2021-11-05 13:48:11,189 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 1 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 205.53ms TimeCoverageRelationStatistics Valid=74, Invalid=166, Unknown=0, NotChecked=0, Total=240 [2021-11-05 13:48:11,189 INFO L933 BasicCegarLoop]: 38 mSDtfsCounter, 172 mSDsluCounter, 137 mSDsCounter, 0 mSdLazyCounter, 82 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 62.67ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 172 SdHoareTripleChecker+Valid, 175 SdHoareTripleChecker+Invalid, 88 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.84ms SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 82 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 1 IncrementalHoareTripleChecker+Unchecked, 77.05ms IncrementalHoareTripleChecker+Time [2021-11-05 13:48:11,190 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [172 Valid, 175 Invalid, 88 Unknown, 0 Unchecked, 0.84ms Time], IncrementalHoareTripleChecker [5 Valid, 82 Invalid, 0 Unknown, 1 Unchecked, 77.05ms Time] [2021-11-05 13:48:11,190 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63 states. [2021-11-05 13:48:11,193 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63 to 55. [2021-11-05 13:48:11,193 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 55 states, 53 states have (on average 1.1132075471698113) internal successors, (59), 54 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 13:48:11,194 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55 states to 55 states and 59 transitions. [2021-11-05 13:48:11,194 INFO L78 Accepts]: Start accepts. Automaton has 55 states and 59 transitions. Word has length 28 [2021-11-05 13:48:11,194 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 13:48:11,194 INFO L470 AbstractCegarLoop]: Abstraction has 55 states and 59 transitions. [2021-11-05 13:48:11,194 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 3.4545454545454546) internal successors, (38), 11 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 13:48:11,194 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states and 59 transitions. [2021-11-05 13:48:11,195 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-11-05 13:48:11,195 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 13:48:11,195 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] [2021-11-05 13:48:11,213 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2021-11-05 13:48:11,404 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-11-05 13:48:11,404 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2021-11-05 13:48:11,404 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 13:48:11,404 INFO L85 PathProgramCache]: Analyzing trace with hash -20878187, now seen corresponding path program 1 times [2021-11-05 13:48:11,405 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-05 13:48:11,405 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [974024111] [2021-11-05 13:48:11,405 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 13:48:11,405 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-05 13:48:11,405 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-11-05 13:48:11,417 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-05 13:48:11,419 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2021-11-05 13:48:11,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 13:48:11,534 INFO L263 TraceCheckSpWp]: Trace formula consists of 116 conjuncts, 11 conjunts are in the unsatisfiable core [2021-11-05 13:48:11,535 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-05 13:48:11,710 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-05 13:48:11,710 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-05 13:48:11,768 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-05 13:48:11,768 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-05 13:48:11,768 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [974024111] [2021-11-05 13:48:11,768 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [974024111] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-05 13:48:11,768 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-05 13:48:11,768 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8, 3] imperfect sequences [] total 9 [2021-11-05 13:48:11,768 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1947052826] [2021-11-05 13:48:11,769 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-05 13:48:11,769 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-11-05 13:48:11,769 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-05 13:48:11,769 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-11-05 13:48:11,769 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2021-11-05 13:48:11,769 INFO L87 Difference]: Start difference. First operand 55 states and 59 transitions. Second operand has 9 states, 9 states have (on average 4.111111111111111) internal successors, (37), 9 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) [2021-11-05 13:48:11,858 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 13:48:11,859 INFO L93 Difference]: Finished difference Result 85 states and 91 transitions. [2021-11-05 13:48:11,859 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-11-05 13:48:11,859 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 4.111111111111111) internal successors, (37), 9 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 29 [2021-11-05 13:48:11,859 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 13:48:11,859 INFO L225 Difference]: With dead ends: 85 [2021-11-05 13:48:11,859 INFO L226 Difference]: Without dead ends: 56 [2021-11-05 13:48:11,860 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 49 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 140.94ms TimeCoverageRelationStatistics Valid=35, Invalid=97, Unknown=0, NotChecked=0, Total=132 [2021-11-05 13:48:11,860 INFO L933 BasicCegarLoop]: 37 mSDtfsCounter, 5 mSDsluCounter, 161 mSDsCounter, 0 mSdLazyCounter, 31 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 28.01ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 198 SdHoareTripleChecker+Invalid, 50 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.37ms SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 31 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 15 IncrementalHoareTripleChecker+Unchecked, 33.88ms IncrementalHoareTripleChecker+Time [2021-11-05 13:48:11,860 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5 Valid, 198 Invalid, 50 Unknown, 0 Unchecked, 0.37ms Time], IncrementalHoareTripleChecker [4 Valid, 31 Invalid, 0 Unknown, 15 Unchecked, 33.88ms Time] [2021-11-05 13:48:11,861 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56 states. [2021-11-05 13:48:11,863 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56 to 56. [2021-11-05 13:48:11,863 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 56 states, 54 states have (on average 1.1111111111111112) internal successors, (60), 55 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 13:48:11,864 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 56 states and 60 transitions. [2021-11-05 13:48:11,864 INFO L78 Accepts]: Start accepts. Automaton has 56 states and 60 transitions. Word has length 29 [2021-11-05 13:48:11,864 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 13:48:11,864 INFO L470 AbstractCegarLoop]: Abstraction has 56 states and 60 transitions. [2021-11-05 13:48:11,864 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 4.111111111111111) internal successors, (37), 9 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) [2021-11-05 13:48:11,864 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states and 60 transitions. [2021-11-05 13:48:11,865 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2021-11-05 13:48:11,865 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 13:48:11,865 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] [2021-11-05 13:48:11,887 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2021-11-05 13:48:12,074 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-11-05 13:48:12,074 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2021-11-05 13:48:12,074 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 13:48:12,074 INFO L85 PathProgramCache]: Analyzing trace with hash -1012014150, now seen corresponding path program 1 times [2021-11-05 13:48:12,079 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-05 13:48:12,079 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2019172641] [2021-11-05 13:48:12,079 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 13:48:12,079 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-05 13:48:12,079 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-11-05 13:48:12,080 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-05 13:48:12,082 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2021-11-05 13:48:12,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 13:48:12,173 INFO L263 TraceCheckSpWp]: Trace formula consists of 119 conjuncts, 12 conjunts are in the unsatisfiable core [2021-11-05 13:48:12,174 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-05 13:48:12,347 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-05 13:48:12,347 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-05 13:48:12,420 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-05 13:48:12,420 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-05 13:48:12,421 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2019172641] [2021-11-05 13:48:12,421 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2019172641] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-05 13:48:12,421 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-05 13:48:12,421 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9, 5] imperfect sequences [] total 11 [2021-11-05 13:48:12,421 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1983847396] [2021-11-05 13:48:12,421 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-05 13:48:12,421 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-11-05 13:48:12,421 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-05 13:48:12,421 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-11-05 13:48:12,421 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2021-11-05 13:48:12,422 INFO L87 Difference]: Start difference. First operand 56 states and 60 transitions. Second operand has 11 states, 11 states have (on average 3.5454545454545454) internal successors, (39), 11 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 13:48:12,593 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 13:48:12,593 INFO L93 Difference]: Finished difference Result 64 states and 67 transitions. [2021-11-05 13:48:12,593 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-11-05 13:48:12,594 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 3.5454545454545454) internal successors, (39), 11 states have internal predecessors, (39), 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 30 [2021-11-05 13:48:12,594 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 13:48:12,594 INFO L225 Difference]: With dead ends: 64 [2021-11-05 13:48:12,594 INFO L226 Difference]: Without dead ends: 42 [2021-11-05 13:48:12,594 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 49 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 1 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 192.51ms TimeCoverageRelationStatistics Valid=74, Invalid=166, Unknown=0, NotChecked=0, Total=240 [2021-11-05 13:48:12,595 INFO L933 BasicCegarLoop]: 32 mSDtfsCounter, 87 mSDsluCounter, 114 mSDsCounter, 0 mSdLazyCounter, 71 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 55.55ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 87 SdHoareTripleChecker+Valid, 146 SdHoareTripleChecker+Invalid, 92 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.59ms SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 71 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 15 IncrementalHoareTripleChecker+Unchecked, 64.91ms IncrementalHoareTripleChecker+Time [2021-11-05 13:48:12,595 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [87 Valid, 146 Invalid, 92 Unknown, 0 Unchecked, 0.59ms Time], IncrementalHoareTripleChecker [6 Valid, 71 Invalid, 0 Unknown, 15 Unchecked, 64.91ms Time] [2021-11-05 13:48:12,595 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42 states. [2021-11-05 13:48:12,597 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 42. [2021-11-05 13:48:12,597 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 42 states, 40 states have (on average 1.1) internal successors, (44), 41 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 13:48:12,597 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 44 transitions. [2021-11-05 13:48:12,597 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 44 transitions. Word has length 30 [2021-11-05 13:48:12,598 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 13:48:12,598 INFO L470 AbstractCegarLoop]: Abstraction has 42 states and 44 transitions. [2021-11-05 13:48:12,598 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 3.5454545454545454) internal successors, (39), 11 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 13:48:12,598 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 44 transitions. [2021-11-05 13:48:12,598 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-11-05 13:48:12,598 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 13:48:12,598 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] [2021-11-05 13:48:12,607 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (8)] Ended with exit code 0 [2021-11-05 13:48:12,798 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-11-05 13:48:12,799 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2021-11-05 13:48:12,799 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 13:48:12,799 INFO L85 PathProgramCache]: Analyzing trace with hash -1013503085, now seen corresponding path program 1 times [2021-11-05 13:48:12,800 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-05 13:48:12,800 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2068521467] [2021-11-05 13:48:12,800 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 13:48:12,800 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-05 13:48:12,800 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-11-05 13:48:12,801 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-05 13:48:12,802 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2021-11-05 13:48:12,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 13:48:12,887 INFO L263 TraceCheckSpWp]: Trace formula consists of 121 conjuncts, 12 conjunts are in the unsatisfiable core [2021-11-05 13:48:12,889 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-05 13:48:13,121 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-05 13:48:13,121 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-05 13:48:13,295 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-05 13:48:13,295 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-05 13:48:13,295 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2068521467] [2021-11-05 13:48:13,295 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2068521467] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-05 13:48:13,295 INFO L186 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2021-11-05 13:48:13,296 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 7] total 14 [2021-11-05 13:48:13,296 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [680865891] [2021-11-05 13:48:13,296 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2021-11-05 13:48:13,296 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2021-11-05 13:48:13,296 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-05 13:48:13,296 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-11-05 13:48:13,296 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=138, Unknown=0, NotChecked=0, Total=182 [2021-11-05 13:48:13,297 INFO L87 Difference]: Start difference. First operand 42 states and 44 transitions. Second operand has 14 states, 14 states have (on average 2.9285714285714284) internal successors, (41), 14 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 13:48:13,396 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 13:48:13,396 INFO L93 Difference]: Finished difference Result 75 states and 80 transitions. [2021-11-05 13:48:13,396 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-11-05 13:48:13,396 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 2.9285714285714284) internal successors, (41), 14 states have internal predecessors, (41), 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 31 [2021-11-05 13:48:13,396 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 13:48:13,397 INFO L225 Difference]: With dead ends: 75 [2021-11-05 13:48:13,397 INFO L226 Difference]: Without dead ends: 46 [2021-11-05 13:48:13,397 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 48 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 44 ImplicationChecksByTransitivity, 254.16ms TimeCoverageRelationStatistics Valid=67, Invalid=205, Unknown=0, NotChecked=0, Total=272 [2021-11-05 13:48:13,397 INFO L933 BasicCegarLoop]: 36 mSDtfsCounter, 6 mSDsluCounter, 188 mSDsCounter, 0 mSdLazyCounter, 44 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 33.67ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 224 SdHoareTripleChecker+Invalid, 54 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.46ms SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 44 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 6 IncrementalHoareTripleChecker+Unchecked, 39.46ms IncrementalHoareTripleChecker+Time [2021-11-05 13:48:13,398 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6 Valid, 224 Invalid, 54 Unknown, 0 Unchecked, 0.46ms Time], IncrementalHoareTripleChecker [4 Valid, 44 Invalid, 0 Unknown, 6 Unchecked, 39.46ms Time] [2021-11-05 13:48:13,398 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46 states. [2021-11-05 13:48:13,400 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46 to 46. [2021-11-05 13:48:13,400 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 46 states, 44 states have (on average 1.0909090909090908) internal successors, (48), 45 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 13:48:13,400 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 48 transitions. [2021-11-05 13:48:13,400 INFO L78 Accepts]: Start accepts. Automaton has 46 states and 48 transitions. Word has length 31 [2021-11-05 13:48:13,400 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 13:48:13,400 INFO L470 AbstractCegarLoop]: Abstraction has 46 states and 48 transitions. [2021-11-05 13:48:13,401 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 2.9285714285714284) internal successors, (41), 14 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 13:48:13,401 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 48 transitions. [2021-11-05 13:48:13,401 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2021-11-05 13:48:13,401 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 13:48:13,401 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-05 13:48:13,413 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (9)] Ended with exit code 0 [2021-11-05 13:48:13,608 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-11-05 13:48:13,609 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2021-11-05 13:48:13,609 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 13:48:13,609 INFO L85 PathProgramCache]: Analyzing trace with hash 2142974735, now seen corresponding path program 2 times [2021-11-05 13:48:13,609 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-05 13:48:13,609 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [460926180] [2021-11-05 13:48:13,609 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-11-05 13:48:13,610 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-05 13:48:13,610 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-11-05 13:48:13,610 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-05 13:48:13,612 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2021-11-05 13:48:13,720 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2021-11-05 13:48:13,720 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-05 13:48:13,725 INFO L263 TraceCheckSpWp]: Trace formula consists of 116 conjuncts, 14 conjunts are in the unsatisfiable core [2021-11-05 13:48:13,727 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-05 13:48:14,182 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2021-11-05 13:48:14,182 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-05 13:48:14,452 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2021-11-05 13:48:14,453 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-05 13:48:14,453 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [460926180] [2021-11-05 13:48:14,453 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [460926180] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-05 13:48:14,453 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-05 13:48:14,453 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11, 9] imperfect sequences [] total 18 [2021-11-05 13:48:14,453 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1197717226] [2021-11-05 13:48:14,453 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-05 13:48:14,454 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2021-11-05 13:48:14,454 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-05 13:48:14,454 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-11-05 13:48:14,454 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=63, Invalid=243, Unknown=0, NotChecked=0, Total=306 [2021-11-05 13:48:14,455 INFO L87 Difference]: Start difference. First operand 46 states and 48 transitions. Second operand has 18 states, 18 states have (on average 2.7777777777777777) internal successors, (50), 18 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 13:48:14,663 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 13:48:14,664 INFO L93 Difference]: Finished difference Result 66 states and 69 transitions. [2021-11-05 13:48:14,664 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-11-05 13:48:14,664 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 2.7777777777777777) internal successors, (50), 18 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 35 [2021-11-05 13:48:14,664 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 13:48:14,665 INFO L225 Difference]: With dead ends: 66 [2021-11-05 13:48:14,665 INFO L226 Difference]: Without dead ends: 47 [2021-11-05 13:48:14,665 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 72 GetRequests, 52 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 80 ImplicationChecksByTransitivity, 452.03ms TimeCoverageRelationStatistics Valid=101, Invalid=361, Unknown=0, NotChecked=0, Total=462 [2021-11-05 13:48:14,666 INFO L933 BasicCegarLoop]: 33 mSDtfsCounter, 51 mSDsluCounter, 242 mSDsCounter, 0 mSdLazyCounter, 53 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 75.91ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 51 SdHoareTripleChecker+Valid, 275 SdHoareTripleChecker+Invalid, 79 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 1.05ms SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 53 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 20 IncrementalHoareTripleChecker+Unchecked, 105.39ms IncrementalHoareTripleChecker+Time [2021-11-05 13:48:14,666 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [51 Valid, 275 Invalid, 79 Unknown, 0 Unchecked, 1.05ms Time], IncrementalHoareTripleChecker [6 Valid, 53 Invalid, 0 Unknown, 20 Unchecked, 105.39ms Time] [2021-11-05 13:48:14,666 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47 states. [2021-11-05 13:48:14,669 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47 to 47. [2021-11-05 13:48:14,669 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 47 states, 45 states have (on average 1.0888888888888888) internal successors, (49), 46 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) [2021-11-05 13:48:14,670 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 47 states and 49 transitions. [2021-11-05 13:48:14,670 INFO L78 Accepts]: Start accepts. Automaton has 47 states and 49 transitions. Word has length 35 [2021-11-05 13:48:14,670 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 13:48:14,670 INFO L470 AbstractCegarLoop]: Abstraction has 47 states and 49 transitions. [2021-11-05 13:48:14,671 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 2.7777777777777777) internal successors, (50), 18 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 13:48:14,671 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 49 transitions. [2021-11-05 13:48:14,671 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2021-11-05 13:48:14,671 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 13:48:14,671 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-05 13:48:14,697 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (10)] Forceful destruction successful, exit code 0 [2021-11-05 13:48:14,882 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-11-05 13:48:14,883 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2021-11-05 13:48:14,883 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 13:48:14,883 INFO L85 PathProgramCache]: Analyzing trace with hash -1210339247, now seen corresponding path program 1 times [2021-11-05 13:48:14,884 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-05 13:48:14,885 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2062597591] [2021-11-05 13:48:14,885 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 13:48:14,885 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-05 13:48:14,886 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-11-05 13:48:14,886 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-05 13:48:14,888 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2021-11-05 13:48:14,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 13:48:15,006 INFO L263 TraceCheckSpWp]: Trace formula consists of 136 conjuncts, 14 conjunts are in the unsatisfiable core [2021-11-05 13:48:15,007 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-05 13:48:15,389 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-05 13:48:15,389 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-05 13:48:15,765 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-05 13:48:15,765 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-05 13:48:15,765 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2062597591] [2021-11-05 13:48:15,765 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2062597591] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-05 13:48:15,765 INFO L186 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2021-11-05 13:48:15,765 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 9] total 18 [2021-11-05 13:48:15,765 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1150162766] [2021-11-05 13:48:15,765 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2021-11-05 13:48:15,765 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2021-11-05 13:48:15,766 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-05 13:48:15,766 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-11-05 13:48:15,766 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=238, Unknown=0, NotChecked=0, Total=306 [2021-11-05 13:48:15,766 INFO L87 Difference]: Start difference. First operand 47 states and 49 transitions. Second operand has 18 states, 18 states have (on average 2.8333333333333335) internal successors, (51), 18 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) [2021-11-05 13:48:16,324 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 13:48:16,325 INFO L93 Difference]: Finished difference Result 85 states and 92 transitions. [2021-11-05 13:48:16,325 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-11-05 13:48:16,325 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 2.8333333333333335) internal successors, (51), 18 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 37 [2021-11-05 13:48:16,325 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 13:48:16,325 INFO L225 Difference]: With dead ends: 85 [2021-11-05 13:48:16,325 INFO L226 Difference]: Without dead ends: 55 [2021-11-05 13:48:16,326 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 79 GetRequests, 56 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 122 ImplicationChecksByTransitivity, 990.73ms TimeCoverageRelationStatistics Valid=128, Invalid=472, Unknown=0, NotChecked=0, Total=600 [2021-11-05 13:48:16,326 INFO L933 BasicCegarLoop]: 36 mSDtfsCounter, 7 mSDsluCounter, 302 mSDsCounter, 0 mSdLazyCounter, 47 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 38.90ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 338 SdHoareTripleChecker+Invalid, 75 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.66ms SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 47 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 24 IncrementalHoareTripleChecker+Unchecked, 45.70ms IncrementalHoareTripleChecker+Time [2021-11-05 13:48:16,326 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [7 Valid, 338 Invalid, 75 Unknown, 0 Unchecked, 0.66ms Time], IncrementalHoareTripleChecker [4 Valid, 47 Invalid, 0 Unknown, 24 Unchecked, 45.70ms Time] [2021-11-05 13:48:16,327 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55 states. [2021-11-05 13:48:16,329 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55 to 55. [2021-11-05 13:48:16,329 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 55 states, 53 states have (on average 1.0754716981132075) internal successors, (57), 54 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 13:48:16,329 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55 states to 55 states and 57 transitions. [2021-11-05 13:48:16,329 INFO L78 Accepts]: Start accepts. Automaton has 55 states and 57 transitions. Word has length 37 [2021-11-05 13:48:16,330 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 13:48:16,330 INFO L470 AbstractCegarLoop]: Abstraction has 55 states and 57 transitions. [2021-11-05 13:48:16,330 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 2.8333333333333335) internal successors, (51), 18 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) [2021-11-05 13:48:16,330 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states and 57 transitions. [2021-11-05 13:48:16,330 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2021-11-05 13:48:16,330 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 13:48:16,330 INFO L514 BasicCegarLoop]: trace histogram [7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-05 13:48:16,358 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (11)] Forceful destruction successful, exit code 0 [2021-11-05 13:48:16,531 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-11-05 13:48:16,531 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2021-11-05 13:48:16,531 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 13:48:16,531 INFO L85 PathProgramCache]: Analyzing trace with hash -219084983, now seen corresponding path program 2 times [2021-11-05 13:48:16,532 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-05 13:48:16,532 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1678080104] [2021-11-05 13:48:16,532 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-11-05 13:48:16,532 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-05 13:48:16,532 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-11-05 13:48:16,540 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-05 13:48:16,542 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (12)] Waiting until timeout for monitored process [2021-11-05 13:48:16,749 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-11-05 13:48:16,749 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-05 13:48:16,760 INFO L263 TraceCheckSpWp]: Trace formula consists of 156 conjuncts, 18 conjunts are in the unsatisfiable core [2021-11-05 13:48:16,761 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-05 13:48:17,502 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 0 proven. 49 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-05 13:48:17,503 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-05 13:48:18,394 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 0 proven. 49 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-05 13:48:18,394 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-05 13:48:18,394 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1678080104] [2021-11-05 13:48:18,395 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1678080104] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-05 13:48:18,395 INFO L186 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2021-11-05 13:48:18,395 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 13] total 26 [2021-11-05 13:48:18,395 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1606473700] [2021-11-05 13:48:18,395 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2021-11-05 13:48:18,395 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2021-11-05 13:48:18,395 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-05 13:48:18,396 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2021-11-05 13:48:18,397 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=112, Invalid=538, Unknown=0, NotChecked=0, Total=650 [2021-11-05 13:48:18,398 INFO L87 Difference]: Start difference. First operand 55 states and 57 transitions. Second operand has 26 states, 26 states have (on average 2.576923076923077) internal successors, (67), 26 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 13:48:18,581 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 13:48:18,581 INFO L93 Difference]: Finished difference Result 87 states and 91 transitions. [2021-11-05 13:48:18,582 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-11-05 13:48:18,582 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 2.576923076923077) internal successors, (67), 26 states have internal predecessors, (67), 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 [2021-11-05 13:48:18,582 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 13:48:18,584 INFO L225 Difference]: With dead ends: 87 [2021-11-05 13:48:18,584 INFO L226 Difference]: Without dead ends: 57 [2021-11-05 13:48:18,584 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 91 GetRequests, 64 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 204 ImplicationChecksByTransitivity, 1216.50ms TimeCoverageRelationStatistics Valid=135, Invalid=677, Unknown=0, NotChecked=0, Total=812 [2021-11-05 13:48:18,587 INFO L933 BasicCegarLoop]: 36 mSDtfsCounter, 6 mSDsluCounter, 472 mSDsCounter, 0 mSdLazyCounter, 60 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 72.00ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 508 SdHoareTripleChecker+Invalid, 97 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 1.50ms SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 60 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 32 IncrementalHoareTripleChecker+Unchecked, 87.52ms IncrementalHoareTripleChecker+Time [2021-11-05 13:48:18,587 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6 Valid, 508 Invalid, 97 Unknown, 0 Unchecked, 1.50ms Time], IncrementalHoareTripleChecker [5 Valid, 60 Invalid, 0 Unknown, 32 Unchecked, 87.52ms Time] [2021-11-05 13:48:18,587 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57 states. [2021-11-05 13:48:18,596 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57 to 57. [2021-11-05 13:48:18,596 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 57 states, 55 states have (on average 1.0727272727272728) internal successors, (59), 56 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 13:48:18,596 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57 states to 57 states and 59 transitions. [2021-11-05 13:48:18,596 INFO L78 Accepts]: Start accepts. Automaton has 57 states and 59 transitions. Word has length 45 [2021-11-05 13:48:18,596 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 13:48:18,596 INFO L470 AbstractCegarLoop]: Abstraction has 57 states and 59 transitions. [2021-11-05 13:48:18,596 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 2.576923076923077) internal successors, (67), 26 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 13:48:18,597 INFO L276 IsEmpty]: Start isEmpty. Operand 57 states and 59 transitions. [2021-11-05 13:48:18,597 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2021-11-05 13:48:18,597 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 13:48:18,597 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-05 13:48:18,612 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (12)] Forceful destruction successful, exit code 0 [2021-11-05 13:48:18,812 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-11-05 13:48:18,812 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2021-11-05 13:48:18,813 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 13:48:18,813 INFO L85 PathProgramCache]: Analyzing trace with hash -1995109817, now seen corresponding path program 3 times [2021-11-05 13:48:18,813 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-05 13:48:18,813 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [162610430] [2021-11-05 13:48:18,813 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-11-05 13:48:18,814 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-05 13:48:18,814 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-11-05 13:48:18,815 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-05 13:48:18,816 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (13)] Waiting until timeout for monitored process [2021-11-05 13:48:19,348 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 9 check-sat command(s) [2021-11-05 13:48:19,348 INFO L229 tOrderPrioritization]: Conjunction of SSA is sat [2021-11-05 13:48:19,348 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-05 13:48:19,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-05 13:48:19,824 INFO L133 FreeRefinementEngine]: Strategy WOLF found a feasible trace [2021-11-05 13:48:19,825 INFO L628 BasicCegarLoop]: Counterexample is feasible [2021-11-05 13:48:19,825 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION (4 of 5 remaining) [2021-11-05 13:48:19,826 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (3 of 5 remaining) [2021-11-05 13:48:19,826 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (2 of 5 remaining) [2021-11-05 13:48:19,827 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (1 of 5 remaining) [2021-11-05 13:48:19,827 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (0 of 5 remaining) [2021-11-05 13:48:19,842 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (13)] Forceful destruction successful, exit code 0 [2021-11-05 13:48:20,041 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-11-05 13:48:20,044 INFO L732 BasicCegarLoop]: Path program histogram: [3, 2, 1, 1, 1, 1, 1, 1, 1] [2021-11-05 13:48:20,046 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-11-05 13:48:20,082 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 05.11 01:48:20 BoogieIcfgContainer [2021-11-05 13:48:20,082 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-11-05 13:48:20,083 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-05 13:48:20,083 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-05 13:48:20,083 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-05 13:48:20,083 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.11 01:48:08" (3/4) ... [2021-11-05 13:48:20,084 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2021-11-05 13:48:20,126 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2021-11-05 13:48:20,126 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-05 13:48:20,127 INFO L158 Benchmark]: Toolchain (without parser) took 14109.20ms. Allocated memory was 50.3MB in the beginning and 113.2MB in the end (delta: 62.9MB). Free memory was 22.8MB in the beginning and 31.3MB in the end (delta: -8.6MB). Peak memory consumption was 53.6MB. Max. memory is 16.1GB. [2021-11-05 13:48:20,127 INFO L158 Benchmark]: CDTParser took 0.16ms. Allocated memory is still 50.3MB. Free memory was 32.9MB in the beginning and 32.8MB in the end (delta: 37.9kB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-05 13:48:20,128 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1355.86ms. Allocated memory was 50.3MB in the beginning and 75.5MB in the end (delta: 25.2MB). Free memory was 22.5MB in the beginning and 43.6MB in the end (delta: -21.0MB). Peak memory consumption was 23.3MB. Max. memory is 16.1GB. [2021-11-05 13:48:20,128 INFO L158 Benchmark]: Boogie Procedure Inliner took 97.51ms. Allocated memory is still 75.5MB. Free memory was 43.6MB in the beginning and 38.6MB in the end (delta: 5.0MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2021-11-05 13:48:20,129 INFO L158 Benchmark]: Boogie Preprocessor took 50.94ms. Allocated memory is still 75.5MB. Free memory was 38.6MB in the beginning and 35.6MB in the end (delta: 3.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-05 13:48:20,129 INFO L158 Benchmark]: RCFGBuilder took 544.38ms. Allocated memory is still 75.5MB. Free memory was 35.6MB in the beginning and 38.1MB in the end (delta: -2.5MB). Peak memory consumption was 15.2MB. Max. memory is 16.1GB. [2021-11-05 13:48:20,129 INFO L158 Benchmark]: TraceAbstraction took 12007.82ms. Allocated memory was 75.5MB in the beginning and 113.2MB in the end (delta: 37.7MB). Free memory was 37.3MB in the beginning and 37.6MB in the end (delta: -316.4kB). Peak memory consumption was 36.5MB. Max. memory is 16.1GB. [2021-11-05 13:48:20,130 INFO L158 Benchmark]: Witness Printer took 43.80ms. Allocated memory is still 113.2MB. Free memory was 37.6MB in the beginning and 31.3MB in the end (delta: 6.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2021-11-05 13:48:20,131 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16ms. Allocated memory is still 50.3MB. Free memory was 32.9MB in the beginning and 32.8MB in the end (delta: 37.9kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1355.86ms. Allocated memory was 50.3MB in the beginning and 75.5MB in the end (delta: 25.2MB). Free memory was 22.5MB in the beginning and 43.6MB in the end (delta: -21.0MB). Peak memory consumption was 23.3MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 97.51ms. Allocated memory is still 75.5MB. Free memory was 43.6MB in the beginning and 38.6MB in the end (delta: 5.0MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Boogie Preprocessor took 50.94ms. Allocated memory is still 75.5MB. Free memory was 38.6MB in the beginning and 35.6MB in the end (delta: 3.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 544.38ms. Allocated memory is still 75.5MB. Free memory was 35.6MB in the beginning and 38.1MB in the end (delta: -2.5MB). Peak memory consumption was 15.2MB. Max. memory is 16.1GB. * TraceAbstraction took 12007.82ms. Allocated memory was 75.5MB in the beginning and 113.2MB in the end (delta: 37.7MB). Free memory was 37.3MB in the beginning and 37.6MB in the end (delta: -316.4kB). Peak memory consumption was 36.5MB. Max. memory is 16.1GB. * Witness Printer took 43.80ms. Allocated memory is still 113.2MB. Free memory was 37.6MB in the beginning and 31.3MB in the end (delta: 6.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * 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 - CounterExampleResult [Line: 223]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L5906] short d1[160]; [L5907] short d2[160]; [L5908] int c = __VERIFIER_nondet_int(); [L211] COND FALSE !(!cond) [L5911] unsigned size = __VERIFIER_nondet_uint(); [L211] COND FALSE !(!cond) [L211] COND FALSE !(!cond) [L211] COND FALSE !(!cond) [L5871] COND TRUE n > 0 [L5872] char *sp = (char *)s; [L5873] unsigned long i = 0; [L5873] COND TRUE i < n [L5874] sp[i] = c [L5873] i++ [L5873] COND TRUE i < n [L5874] sp[i] = c [L5873] i++ [L5873] COND TRUE i < n [L5874] sp[i] = c [L5873] i++ [L5873] COND TRUE i < n [L5874] sp[i] = c [L5873] i++ [L5873] COND TRUE i < n [L5874] sp[i] = c [L5873] i++ [L5873] COND TRUE i < n [L5874] sp[i] = c [L5873] i++ [L5873] COND TRUE i < n [L5874] sp[i] = c [L5873] i++ [L5873] COND TRUE i < n [L5874] sp[i] = c [L5873] i++ [L5873] COND FALSE !(i < n) [L5876] return s; [L211] COND FALSE !(!cond) [L223] COND FALSE !(!cond) [L5884] size_t num_uint64s = n >> 3; [L5885] size_t rem = n & 0x7; [L223] COND FALSE !(!cond) [L5888] uint64_t *d = (uint64_t *)dst; [L5890] size_t i = 0; [L5890] COND TRUE i < num_uint64s [L5891] d[i] = 0 [L5890] ++i [L5890] COND FALSE !(i < num_uint64s) [L5894] return dst; [L223] COND FALSE !(!cond) [L5655-L5658] COND TRUE len > 0 && a != ((void *)0) && b != ((void *)0) [L266] return __VERIFIER_nondet_ulong(); [L5660] size_t i = nondet_uint64_t(); [L211] COND FALSE !(!cond) [L5664] a[i] [L5664] b[i] [L223] COND TRUE !cond [L223] reach_error() - UnprovableResult [Line: 223]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 223]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 223]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 223]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 53 locations, 5 error locations. Started 1 CEGAR loops. OverallTime: 11934.40ms, OverallIterations: 12, TraceHistogramMax: 8, PathProgramHistogramMax: 3, EmptinessCheckTime: 15.27ms, AutomataDifference: 1814.21ms, DeadEndRemovalTime: 0.00ms, HoareAnnotationTime: 0.00ms, InitialAbstractionConstructionTime: 6.44ms, PartialOrderReductionTime: 0.00ms, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 547 SdHoareTripleChecker+Valid, 577.75ms IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 547 mSDsluCounter, 2323 SdHoareTripleChecker+Invalid, 469.47ms Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 121 IncrementalHoareTripleChecker+Unchecked, 1897 mSDsCounter, 45 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 505 IncrementalHoareTripleChecker+Invalid, 671 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 45 mSolverCounterUnsat, 426 mSDtfsCounter, 505 mSolverCounterSat, 9.91ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 632 GetRequests, 484 SyntacticMatches, 1 SemanticMatches, 147 ConstructedPredicates, 0 IntricatePredicates, 2 DeprecatedPredicates, 514 ImplicationChecksByTransitivity, 3707.86ms Time, 0.00ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=57occurred in iteration=11, InterpolantAutomatonStates: 105, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.00ms DumpTime, AutomataMinimizationStatistics: 53.83ms AutomataMinimizationTime, 11 MinimizatonAttempts, 13 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 122.05ms SsaConstructionTime, 1078.49ms SatisfiabilityAnalysisTime, 5215.45ms InterpolantComputationTime, 355 NumberOfCodeBlocks, 349 NumberOfCodeBlocksAsserted, 21 NumberOfCheckSat, 594 ConstructedInterpolants, 48 QuantifiedInterpolants, 3086 SizeOfPredicates, 83 NumberOfNonLiveVariables, 1209 ConjunctsInSsa, 120 ConjunctsInUnsatCore, 22 InterpolantComputations, 16 PerfectInterpolantSequences, 22/140 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 RESULT: Ultimate proved your program to be incorrect! [2021-11-05 13:48:20,166 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... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE