./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/aws-c-common/aws_linked_list_push_back_harness.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 6c24879c Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/aws-c-common/aws_linked_list_push_back_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 d155cc00d5c2ba6f5ef1d5e883c6d133605de01ed97e4300960f893025d81fd1 --- Real Ultimate output --- This is Ultimate 0.2.2-?-6c24879 [2022-07-12 11:10:42,567 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-12 11:10:42,569 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-12 11:10:42,603 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-12 11:10:42,605 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-12 11:10:42,606 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-12 11:10:42,609 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-12 11:10:42,613 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-12 11:10:42,615 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-12 11:10:42,618 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-12 11:10:42,618 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-12 11:10:42,620 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-12 11:10:42,620 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-12 11:10:42,622 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-12 11:10:42,622 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-12 11:10:42,623 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-12 11:10:42,624 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-12 11:10:42,625 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-12 11:10:42,627 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-12 11:10:42,631 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-12 11:10:42,633 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-12 11:10:42,633 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-12 11:10:42,634 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-12 11:10:42,635 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-12 11:10:42,636 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-12 11:10:42,641 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-12 11:10:42,641 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-12 11:10:42,641 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-12 11:10:42,642 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-12 11:10:42,642 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-12 11:10:42,643 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-12 11:10:42,643 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-12 11:10:42,645 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-12 11:10:42,645 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-12 11:10:42,645 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-12 11:10:42,646 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-12 11:10:42,646 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-12 11:10:42,647 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-12 11:10:42,647 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-12 11:10:42,647 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-12 11:10:42,648 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-12 11:10:42,649 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-12 11:10:42,650 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2022-07-12 11:10:42,674 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-12 11:10:42,675 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-12 11:10:42,675 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-12 11:10:42,675 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-12 11:10:42,676 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-12 11:10:42,676 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-12 11:10:42,676 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-12 11:10:42,676 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-12 11:10:42,677 INFO L138 SettingsManager]: * Use SBE=true [2022-07-12 11:10:42,677 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-12 11:10:42,677 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-12 11:10:42,678 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-12 11:10:42,678 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-12 11:10:42,678 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-12 11:10:42,678 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-12 11:10:42,678 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-12 11:10:42,678 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-12 11:10:42,678 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-12 11:10:42,679 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-12 11:10:42,679 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-12 11:10:42,680 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-12 11:10:42,680 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-12 11:10:42,680 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-12 11:10:42,680 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-12 11:10:42,680 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-12 11:10:42,681 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-12 11:10:42,681 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-12 11:10:42,681 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-12 11:10:42,681 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-12 11:10:42,681 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-12 11:10:42,681 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d155cc00d5c2ba6f5ef1d5e883c6d133605de01ed97e4300960f893025d81fd1 [2022-07-12 11:10:42,866 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-12 11:10:42,884 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-12 11:10:42,886 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-12 11:10:42,886 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-12 11:10:42,887 INFO L275 PluginConnector]: CDTParser initialized [2022-07-12 11:10:42,888 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/aws-c-common/aws_linked_list_push_back_harness.i [2022-07-12 11:10:42,934 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/05fd443b8/ec96558bf5c041eb8d6f73e2bafdafcb/FLAG6d00d83ba [2022-07-12 11:10:43,368 INFO L306 CDTParser]: Found 1 translation units. [2022-07-12 11:10:43,369 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_linked_list_push_back_harness.i [2022-07-12 11:10:43,389 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/05fd443b8/ec96558bf5c041eb8d6f73e2bafdafcb/FLAG6d00d83ba [2022-07-12 11:10:43,677 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/05fd443b8/ec96558bf5c041eb8d6f73e2bafdafcb [2022-07-12 11:10:43,679 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-12 11:10:43,680 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-12 11:10:43,683 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-12 11:10:43,683 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-12 11:10:43,685 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-12 11:10:43,685 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.07 11:10:43" (1/1) ... [2022-07-12 11:10:43,686 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@47267192 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 11:10:43, skipping insertion in model container [2022-07-12 11:10:43,686 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.07 11:10:43" (1/1) ... [2022-07-12 11:10:43,691 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-12 11:10:43,744 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-12 11:10:43,895 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_linked_list_push_back_harness.i[4499,4512] [2022-07-12 11:10:43,899 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_linked_list_push_back_harness.i[4559,4572] [2022-07-12 11:10:44,400 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-12 11:10:44,403 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-12 11:10:44,403 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-12 11:10:44,404 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-12 11:10:44,405 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-12 11:10:44,411 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-12 11:10:44,413 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-12 11:10:44,417 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-12 11:10:44,418 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-12 11:10:44,420 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-12 11:10:44,421 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-12 11:10:44,421 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-12 11:10:44,422 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-12 11:10:44,637 WARN L611 FunctionHandler]: implicit declaration of function __atomic_load_n [2022-07-12 11:10:44,638 WARN L611 FunctionHandler]: implicit declaration of function __atomic_store_n [2022-07-12 11:10:44,638 WARN L611 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2022-07-12 11:10:44,639 WARN L611 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2022-07-12 11:10:44,640 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2022-07-12 11:10:44,640 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2022-07-12 11:10:44,640 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2022-07-12 11:10:44,641 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2022-07-12 11:10:44,641 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2022-07-12 11:10:44,642 WARN L611 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2022-07-12 11:10:44,703 WARN L611 FunctionHandler]: implicit declaration of function __builtin_va_copy [2022-07-12 11:10:44,718 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-12 11:10:44,728 INFO L203 MainTranslator]: Completed pre-run [2022-07-12 11:10:44,736 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_linked_list_push_back_harness.i[4499,4512] [2022-07-12 11:10:44,737 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_linked_list_push_back_harness.i[4559,4572] [2022-07-12 11:10:44,775 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-12 11:10:44,778 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-12 11:10:44,779 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-12 11:10:44,780 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-12 11:10:44,781 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-12 11:10:44,804 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-12 11:10:44,805 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-12 11:10:44,805 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-12 11:10:44,806 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-12 11:10:44,806 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-12 11:10:44,807 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-12 11:10:44,807 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-12 11:10:44,807 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-12 11:10:44,836 WARN L611 FunctionHandler]: implicit declaration of function __atomic_load_n [2022-07-12 11:10:44,837 WARN L611 FunctionHandler]: implicit declaration of function __atomic_store_n [2022-07-12 11:10:44,838 WARN L611 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2022-07-12 11:10:44,838 WARN L611 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2022-07-12 11:10:44,842 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2022-07-12 11:10:44,843 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2022-07-12 11:10:44,843 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2022-07-12 11:10:44,844 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2022-07-12 11:10:44,844 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2022-07-12 11:10:44,845 WARN L611 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2022-07-12 11:10:44,863 WARN L611 FunctionHandler]: implicit declaration of function __builtin_va_copy [2022-07-12 11:10:44,882 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-12 11:10:44,995 INFO L208 MainTranslator]: Completed translation [2022-07-12 11:10:44,996 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 11:10:44 WrapperNode [2022-07-12 11:10:44,996 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-12 11:10:44,997 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-12 11:10:44,997 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-12 11:10:44,997 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-12 11:10:45,003 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 11:10:44" (1/1) ... [2022-07-12 11:10:45,056 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 11:10:44" (1/1) ... [2022-07-12 11:10:45,087 INFO L137 Inliner]: procedures = 679, calls = 1048, calls flagged for inlining = 52, calls inlined = 6, statements flattened = 150 [2022-07-12 11:10:45,089 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-12 11:10:45,089 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-12 11:10:45,089 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-12 11:10:45,089 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-12 11:10:45,095 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 11:10:44" (1/1) ... [2022-07-12 11:10:45,095 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 11:10:44" (1/1) ... [2022-07-12 11:10:45,098 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 11:10:44" (1/1) ... [2022-07-12 11:10:45,098 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 11:10:44" (1/1) ... [2022-07-12 11:10:45,106 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 11:10:44" (1/1) ... [2022-07-12 11:10:45,109 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 11:10:44" (1/1) ... [2022-07-12 11:10:45,112 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 11:10:44" (1/1) ... [2022-07-12 11:10:45,115 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-12 11:10:45,116 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-12 11:10:45,116 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-12 11:10:45,116 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-12 11:10:45,117 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 11:10:44" (1/1) ... [2022-07-12 11:10:45,151 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-12 11:10:45,162 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-12 11:10:45,172 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) [2022-07-12 11:10:45,227 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 [2022-07-12 11:10:45,246 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-07-12 11:10:45,246 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2022-07-12 11:10:45,246 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2022-07-12 11:10:45,247 INFO L130 BoogieDeclarations]: Found specification of procedure aws_linked_list_node_next_is_valid [2022-07-12 11:10:45,247 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_linked_list_node_next_is_valid [2022-07-12 11:10:45,247 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-07-12 11:10:45,247 INFO L130 BoogieDeclarations]: Found specification of procedure aws_linked_list_is_valid [2022-07-12 11:10:45,248 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_linked_list_is_valid [2022-07-12 11:10:45,248 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-12 11:10:45,248 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-07-12 11:10:45,249 INFO L130 BoogieDeclarations]: Found specification of procedure aws_linked_list_insert_before [2022-07-12 11:10:45,249 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_linked_list_insert_before [2022-07-12 11:10:45,249 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-12 11:10:45,249 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-12 11:10:45,250 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-07-12 11:10:45,250 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-07-12 11:10:45,250 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-07-12 11:10:45,250 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-07-12 11:10:45,250 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-07-12 11:10:45,250 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_uint64_t [2022-07-12 11:10:45,250 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_uint64_t [2022-07-12 11:10:45,250 INFO L130 BoogieDeclarations]: Found specification of procedure aws_linked_list_node_prev_is_valid [2022-07-12 11:10:45,251 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_linked_list_node_prev_is_valid [2022-07-12 11:10:45,251 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-07-12 11:10:45,426 INFO L234 CfgBuilder]: Building ICFG [2022-07-12 11:10:45,427 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-12 11:10:45,632 INFO L275 CfgBuilder]: Performing block encoding [2022-07-12 11:10:45,636 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-12 11:10:45,636 INFO L299 CfgBuilder]: Removed 2 assume(true) statements. [2022-07-12 11:10:45,638 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.07 11:10:45 BoogieIcfgContainer [2022-07-12 11:10:45,638 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-12 11:10:45,639 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-12 11:10:45,639 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-12 11:10:45,641 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-12 11:10:45,642 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.07 11:10:43" (1/3) ... [2022-07-12 11:10:45,642 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5feedf0f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.07 11:10:45, skipping insertion in model container [2022-07-12 11:10:45,642 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 11:10:44" (2/3) ... [2022-07-12 11:10:45,643 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5feedf0f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.07 11:10:45, skipping insertion in model container [2022-07-12 11:10:45,643 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.07 11:10:45" (3/3) ... [2022-07-12 11:10:45,644 INFO L111 eAbstractionObserver]: Analyzing ICFG aws_linked_list_push_back_harness.i [2022-07-12 11:10:45,653 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-12 11:10:45,653 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-07-12 11:10:45,684 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-12 11:10:45,688 INFO L357 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, mPorIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@2def7627, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@3524cece [2022-07-12 11:10:45,689 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-07-12 11:10:45,692 INFO L276 IsEmpty]: Start isEmpty. Operand has 102 states, 65 states have (on average 1.2923076923076924) internal successors, (84), 66 states have internal predecessors, (84), 28 states have call successors, (28), 7 states have call predecessors, (28), 7 states have return successors, (28), 28 states have call predecessors, (28), 28 states have call successors, (28) [2022-07-12 11:10:45,698 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2022-07-12 11:10:45,698 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 11:10:45,699 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 11:10:45,699 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 11:10:45,702 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 11:10:45,703 INFO L85 PathProgramCache]: Analyzing trace with hash 524704703, now seen corresponding path program 1 times [2022-07-12 11:10:45,720 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 11:10:45,721 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2114493805] [2022-07-12 11:10:45,721 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 11:10:45,721 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 11:10:45,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 11:10:45,966 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-12 11:10:45,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 11:10:45,993 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-07-12 11:10:46,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 11:10:46,019 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-07-12 11:10:46,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 11:10:46,059 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2022-07-12 11:10:46,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 11:10:46,070 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-07-12 11:10:46,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 11:10:46,088 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2022-07-12 11:10:46,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 11:10:46,108 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2022-07-12 11:10:46,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 11:10:46,115 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-07-12 11:10:46,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 11:10:46,121 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2022-07-12 11:10:46,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 11:10:46,137 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 47 trivial. 0 not checked. [2022-07-12 11:10:46,138 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 11:10:46,138 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2114493805] [2022-07-12 11:10:46,142 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2114493805] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 11:10:46,142 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 11:10:46,143 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-12 11:10:46,144 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [683020002] [2022-07-12 11:10:46,145 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 11:10:46,148 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-12 11:10:46,148 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 11:10:46,170 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-12 11:10:46,171 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-12 11:10:46,173 INFO L87 Difference]: Start difference. First operand has 102 states, 65 states have (on average 1.2923076923076924) internal successors, (84), 66 states have internal predecessors, (84), 28 states have call successors, (28), 7 states have call predecessors, (28), 7 states have return successors, (28), 28 states have call predecessors, (28), 28 states have call successors, (28) Second operand has 4 states, 4 states have (on average 8.75) internal successors, (35), 4 states have internal predecessors, (35), 2 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2022-07-12 11:10:46,236 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 11:10:46,236 INFO L93 Difference]: Finished difference Result 208 states and 310 transitions. [2022-07-12 11:10:46,239 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-12 11:10:46,240 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 8.75) internal successors, (35), 4 states have internal predecessors, (35), 2 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) Word has length 73 [2022-07-12 11:10:46,240 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 11:10:46,248 INFO L225 Difference]: With dead ends: 208 [2022-07-12 11:10:46,248 INFO L226 Difference]: Without dead ends: 109 [2022-07-12 11:10:46,251 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-07-12 11:10:46,260 INFO L413 NwaCegarLoop]: 133 mSDtfsCounter, 21 mSDsluCounter, 265 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 398 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-12 11:10:46,261 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [21 Valid, 398 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-12 11:10:46,272 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 109 states. [2022-07-12 11:10:46,289 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 109 to 99. [2022-07-12 11:10:46,290 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 99 states, 63 states have (on average 1.2380952380952381) internal successors, (78), 64 states have internal predecessors, (78), 28 states have call successors, (28), 7 states have call predecessors, (28), 7 states have return successors, (27), 27 states have call predecessors, (27), 27 states have call successors, (27) [2022-07-12 11:10:46,292 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 99 states to 99 states and 133 transitions. [2022-07-12 11:10:46,293 INFO L78 Accepts]: Start accepts. Automaton has 99 states and 133 transitions. Word has length 73 [2022-07-12 11:10:46,293 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 11:10:46,294 INFO L495 AbstractCegarLoop]: Abstraction has 99 states and 133 transitions. [2022-07-12 11:10:46,294 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 8.75) internal successors, (35), 4 states have internal predecessors, (35), 2 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2022-07-12 11:10:46,294 INFO L276 IsEmpty]: Start isEmpty. Operand 99 states and 133 transitions. [2022-07-12 11:10:46,296 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2022-07-12 11:10:46,296 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 11:10:46,296 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 11:10:46,297 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-07-12 11:10:46,297 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 11:10:46,297 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 11:10:46,297 INFO L85 PathProgramCache]: Analyzing trace with hash -125862913, now seen corresponding path program 1 times [2022-07-12 11:10:46,297 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 11:10:46,298 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1079990766] [2022-07-12 11:10:46,298 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 11:10:46,298 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 11:10:46,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 11:10:46,384 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-12 11:10:46,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 11:10:46,389 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-07-12 11:10:46,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 11:10:46,396 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-07-12 11:10:46,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 11:10:46,414 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2022-07-12 11:10:46,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 11:10:46,421 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-07-12 11:10:46,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 11:10:46,427 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2022-07-12 11:10:46,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 11:10:46,436 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2022-07-12 11:10:46,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 11:10:46,443 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-07-12 11:10:46,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 11:10:46,449 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2022-07-12 11:10:46,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 11:10:46,459 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 47 trivial. 0 not checked. [2022-07-12 11:10:46,460 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 11:10:46,460 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1079990766] [2022-07-12 11:10:46,460 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1079990766] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 11:10:46,460 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 11:10:46,460 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-12 11:10:46,461 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1439105353] [2022-07-12 11:10:46,461 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 11:10:46,462 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-12 11:10:46,462 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 11:10:46,462 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-12 11:10:46,462 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-12 11:10:46,463 INFO L87 Difference]: Start difference. First operand 99 states and 133 transitions. Second operand has 4 states, 4 states have (on average 8.75) internal successors, (35), 4 states have internal predecessors, (35), 2 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2022-07-12 11:10:46,487 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 11:10:46,488 INFO L93 Difference]: Finished difference Result 192 states and 265 transitions. [2022-07-12 11:10:46,488 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-12 11:10:46,488 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 8.75) internal successors, (35), 4 states have internal predecessors, (35), 2 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) Word has length 73 [2022-07-12 11:10:46,488 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 11:10:46,490 INFO L225 Difference]: With dead ends: 192 [2022-07-12 11:10:46,490 INFO L226 Difference]: Without dead ends: 107 [2022-07-12 11:10:46,491 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-07-12 11:10:46,492 INFO L413 NwaCegarLoop]: 128 mSDtfsCounter, 12 mSDsluCounter, 252 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 380 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-12 11:10:46,492 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 380 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-12 11:10:46,493 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 107 states. [2022-07-12 11:10:46,499 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 107 to 101. [2022-07-12 11:10:46,499 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 101 states, 65 states have (on average 1.2307692307692308) internal successors, (80), 66 states have internal predecessors, (80), 28 states have call successors, (28), 7 states have call predecessors, (28), 7 states have return successors, (27), 27 states have call predecessors, (27), 27 states have call successors, (27) [2022-07-12 11:10:46,500 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 101 states to 101 states and 135 transitions. [2022-07-12 11:10:46,501 INFO L78 Accepts]: Start accepts. Automaton has 101 states and 135 transitions. Word has length 73 [2022-07-12 11:10:46,502 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 11:10:46,502 INFO L495 AbstractCegarLoop]: Abstraction has 101 states and 135 transitions. [2022-07-12 11:10:46,502 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 8.75) internal successors, (35), 4 states have internal predecessors, (35), 2 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2022-07-12 11:10:46,502 INFO L276 IsEmpty]: Start isEmpty. Operand 101 states and 135 transitions. [2022-07-12 11:10:46,503 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2022-07-12 11:10:46,504 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 11:10:46,504 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 11:10:46,504 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-07-12 11:10:46,504 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 11:10:46,505 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 11:10:46,505 INFO L85 PathProgramCache]: Analyzing trace with hash 2140518273, now seen corresponding path program 1 times [2022-07-12 11:10:46,505 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 11:10:46,505 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [341272093] [2022-07-12 11:10:46,505 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 11:10:46,505 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 11:10:46,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 11:10:46,594 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-12 11:10:46,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 11:10:46,601 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-07-12 11:10:46,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 11:10:46,616 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-07-12 11:10:46,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 11:10:46,656 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2022-07-12 11:10:46,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 11:10:46,663 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-07-12 11:10:46,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 11:10:46,669 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2022-07-12 11:10:46,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 11:10:46,690 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2022-07-12 11:10:46,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 11:10:46,695 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-07-12 11:10:46,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 11:10:46,701 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2022-07-12 11:10:46,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 11:10:46,709 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 47 trivial. 0 not checked. [2022-07-12 11:10:46,710 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 11:10:46,710 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [341272093] [2022-07-12 11:10:46,712 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [341272093] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 11:10:46,712 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 11:10:46,712 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-12 11:10:46,713 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1677330590] [2022-07-12 11:10:46,713 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 11:10:46,713 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-12 11:10:46,714 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 11:10:46,714 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-12 11:10:46,714 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-07-12 11:10:46,715 INFO L87 Difference]: Start difference. First operand 101 states and 135 transitions. Second operand has 6 states, 5 states have (on average 7.0) internal successors, (35), 6 states have internal predecessors, (35), 3 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (9), 2 states have call predecessors, (9), 3 states have call successors, (9) [2022-07-12 11:10:46,803 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 11:10:46,804 INFO L93 Difference]: Finished difference Result 192 states and 263 transitions. [2022-07-12 11:10:46,804 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-12 11:10:46,804 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 7.0) internal successors, (35), 6 states have internal predecessors, (35), 3 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (9), 2 states have call predecessors, (9), 3 states have call successors, (9) Word has length 73 [2022-07-12 11:10:46,804 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 11:10:46,808 INFO L225 Difference]: With dead ends: 192 [2022-07-12 11:10:46,808 INFO L226 Difference]: Without dead ends: 105 [2022-07-12 11:10:46,810 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-07-12 11:10:46,810 INFO L413 NwaCegarLoop]: 125 mSDtfsCounter, 22 mSDsluCounter, 430 mSDsCounter, 0 mSdLazyCounter, 43 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 555 SdHoareTripleChecker+Invalid, 74 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 43 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-12 11:10:46,811 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [22 Valid, 555 Invalid, 74 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 43 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-12 11:10:46,811 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 105 states. [2022-07-12 11:10:46,817 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 105 to 104. [2022-07-12 11:10:46,817 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 104 states, 68 states have (on average 1.2205882352941178) internal successors, (83), 69 states have internal predecessors, (83), 28 states have call successors, (28), 7 states have call predecessors, (28), 7 states have return successors, (27), 27 states have call predecessors, (27), 27 states have call successors, (27) [2022-07-12 11:10:46,818 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104 states to 104 states and 138 transitions. [2022-07-12 11:10:46,818 INFO L78 Accepts]: Start accepts. Automaton has 104 states and 138 transitions. Word has length 73 [2022-07-12 11:10:46,818 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 11:10:46,819 INFO L495 AbstractCegarLoop]: Abstraction has 104 states and 138 transitions. [2022-07-12 11:10:46,819 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 7.0) internal successors, (35), 6 states have internal predecessors, (35), 3 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (9), 2 states have call predecessors, (9), 3 states have call successors, (9) [2022-07-12 11:10:46,819 INFO L276 IsEmpty]: Start isEmpty. Operand 104 states and 138 transitions. [2022-07-12 11:10:46,820 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2022-07-12 11:10:46,820 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 11:10:46,820 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 11:10:46,820 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-07-12 11:10:46,820 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 11:10:46,821 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 11:10:46,821 INFO L85 PathProgramCache]: Analyzing trace with hash 2124999555, now seen corresponding path program 1 times [2022-07-12 11:10:46,821 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 11:10:46,821 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [307066948] [2022-07-12 11:10:46,821 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 11:10:46,821 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 11:10:46,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 11:10:46,893 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-12 11:10:46,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 11:10:46,900 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-07-12 11:10:46,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 11:10:46,912 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-07-12 11:10:46,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 11:10:46,937 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2022-07-12 11:10:46,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 11:10:46,942 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-07-12 11:10:46,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 11:10:46,947 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2022-07-12 11:10:46,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 11:10:46,953 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2022-07-12 11:10:46,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 11:10:46,958 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-07-12 11:10:46,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 11:10:46,962 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2022-07-12 11:10:46,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 11:10:46,968 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 47 trivial. 0 not checked. [2022-07-12 11:10:46,969 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 11:10:46,969 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [307066948] [2022-07-12 11:10:46,969 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [307066948] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 11:10:46,969 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 11:10:46,969 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-12 11:10:46,969 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1098611088] [2022-07-12 11:10:46,970 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 11:10:46,970 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-12 11:10:46,970 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 11:10:46,971 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-12 11:10:46,971 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-07-12 11:10:46,971 INFO L87 Difference]: Start difference. First operand 104 states and 138 transitions. Second operand has 6 states, 5 states have (on average 7.0) internal successors, (35), 6 states have internal predecessors, (35), 3 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (9), 2 states have call predecessors, (9), 3 states have call successors, (9) [2022-07-12 11:10:47,024 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 11:10:47,024 INFO L93 Difference]: Finished difference Result 201 states and 268 transitions. [2022-07-12 11:10:47,024 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-12 11:10:47,024 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 7.0) internal successors, (35), 6 states have internal predecessors, (35), 3 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (9), 2 states have call predecessors, (9), 3 states have call successors, (9) Word has length 73 [2022-07-12 11:10:47,025 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 11:10:47,025 INFO L225 Difference]: With dead ends: 201 [2022-07-12 11:10:47,025 INFO L226 Difference]: Without dead ends: 102 [2022-07-12 11:10:47,026 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2022-07-12 11:10:47,027 INFO L413 NwaCegarLoop]: 126 mSDtfsCounter, 28 mSDsluCounter, 434 mSDsCounter, 0 mSdLazyCounter, 37 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 28 SdHoareTripleChecker+Valid, 560 SdHoareTripleChecker+Invalid, 67 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 37 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-12 11:10:47,027 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [28 Valid, 560 Invalid, 67 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [30 Valid, 37 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-12 11:10:47,032 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 102 states. [2022-07-12 11:10:47,050 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 102 to 102. [2022-07-12 11:10:47,051 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 102 states, 66 states have (on average 1.2121212121212122) internal successors, (80), 67 states have internal predecessors, (80), 28 states have call successors, (28), 7 states have call predecessors, (28), 7 states have return successors, (27), 27 states have call predecessors, (27), 27 states have call successors, (27) [2022-07-12 11:10:47,053 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 102 states to 102 states and 135 transitions. [2022-07-12 11:10:47,054 INFO L78 Accepts]: Start accepts. Automaton has 102 states and 135 transitions. Word has length 73 [2022-07-12 11:10:47,054 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 11:10:47,054 INFO L495 AbstractCegarLoop]: Abstraction has 102 states and 135 transitions. [2022-07-12 11:10:47,054 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 7.0) internal successors, (35), 6 states have internal predecessors, (35), 3 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (9), 2 states have call predecessors, (9), 3 states have call successors, (9) [2022-07-12 11:10:47,054 INFO L276 IsEmpty]: Start isEmpty. Operand 102 states and 135 transitions. [2022-07-12 11:10:47,055 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2022-07-12 11:10:47,056 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 11:10:47,056 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 11:10:47,057 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-07-12 11:10:47,057 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 11:10:47,057 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 11:10:47,057 INFO L85 PathProgramCache]: Analyzing trace with hash -1956548997, now seen corresponding path program 1 times [2022-07-12 11:10:47,057 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 11:10:47,058 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1503041448] [2022-07-12 11:10:47,058 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 11:10:47,058 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 11:10:47,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 11:10:47,173 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-12 11:10:47,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 11:10:47,178 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-07-12 11:10:47,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 11:10:47,185 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-07-12 11:10:47,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 11:10:47,203 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2022-07-12 11:10:47,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 11:10:47,243 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-07-12 11:10:47,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 11:10:47,251 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2022-07-12 11:10:47,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 11:10:47,263 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2022-07-12 11:10:47,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 11:10:47,268 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-07-12 11:10:47,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 11:10:47,272 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2022-07-12 11:10:47,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 11:10:47,278 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 3 proven. 9 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2022-07-12 11:10:47,278 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 11:10:47,278 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1503041448] [2022-07-12 11:10:47,278 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1503041448] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-12 11:10:47,279 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [842761263] [2022-07-12 11:10:47,279 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 11:10:47,279 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-12 11:10:47,279 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-12 11:10:47,280 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-12 11:10:47,315 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-07-12 11:10:47,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 11:10:47,491 INFO L263 TraceCheckSpWp]: Trace formula consists of 662 conjuncts, 27 conjunts are in the unsatisfiable core [2022-07-12 11:10:47,496 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 11:10:47,578 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 27 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2022-07-12 11:10:47,579 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-12 11:10:47,579 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [842761263] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 11:10:47,579 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-12 11:10:47,579 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [6] total 11 [2022-07-12 11:10:47,580 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2108401245] [2022-07-12 11:10:47,580 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 11:10:47,580 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-12 11:10:47,580 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 11:10:47,580 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-12 11:10:47,581 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2022-07-12 11:10:47,581 INFO L87 Difference]: Start difference. First operand 102 states and 135 transitions. Second operand has 9 states, 7 states have (on average 5.857142857142857) internal successors, (41), 8 states have internal predecessors, (41), 4 states have call successors, (11), 2 states have call predecessors, (11), 4 states have return successors, (9), 3 states have call predecessors, (9), 4 states have call successors, (9) [2022-07-12 11:10:47,771 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 11:10:47,771 INFO L93 Difference]: Finished difference Result 194 states and 259 transitions. [2022-07-12 11:10:47,771 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-07-12 11:10:47,771 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 7 states have (on average 5.857142857142857) internal successors, (41), 8 states have internal predecessors, (41), 4 states have call successors, (11), 2 states have call predecessors, (11), 4 states have return successors, (9), 3 states have call predecessors, (9), 4 states have call successors, (9) Word has length 73 [2022-07-12 11:10:47,772 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 11:10:47,773 INFO L225 Difference]: With dead ends: 194 [2022-07-12 11:10:47,773 INFO L226 Difference]: Without dead ends: 106 [2022-07-12 11:10:47,774 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 102 GetRequests, 86 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=62, Invalid=244, Unknown=0, NotChecked=0, Total=306 [2022-07-12 11:10:47,774 INFO L413 NwaCegarLoop]: 107 mSDtfsCounter, 130 mSDsluCounter, 568 mSDsCounter, 0 mSdLazyCounter, 183 mSolverCounterSat, 59 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 132 SdHoareTripleChecker+Valid, 675 SdHoareTripleChecker+Invalid, 242 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 59 IncrementalHoareTripleChecker+Valid, 183 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-12 11:10:47,775 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [132 Valid, 675 Invalid, 242 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [59 Valid, 183 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-12 11:10:47,775 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 106 states. [2022-07-12 11:10:47,780 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 106 to 104. [2022-07-12 11:10:47,780 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 104 states, 67 states have (on average 1.208955223880597) internal successors, (81), 69 states have internal predecessors, (81), 28 states have call successors, (28), 7 states have call predecessors, (28), 8 states have return successors, (29), 27 states have call predecessors, (29), 27 states have call successors, (29) [2022-07-12 11:10:47,781 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104 states to 104 states and 138 transitions. [2022-07-12 11:10:47,781 INFO L78 Accepts]: Start accepts. Automaton has 104 states and 138 transitions. Word has length 73 [2022-07-12 11:10:47,781 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 11:10:47,781 INFO L495 AbstractCegarLoop]: Abstraction has 104 states and 138 transitions. [2022-07-12 11:10:47,781 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 7 states have (on average 5.857142857142857) internal successors, (41), 8 states have internal predecessors, (41), 4 states have call successors, (11), 2 states have call predecessors, (11), 4 states have return successors, (9), 3 states have call predecessors, (9), 4 states have call successors, (9) [2022-07-12 11:10:47,781 INFO L276 IsEmpty]: Start isEmpty. Operand 104 states and 138 transitions. [2022-07-12 11:10:47,782 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2022-07-12 11:10:47,782 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 11:10:47,782 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 11:10:47,803 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2022-07-12 11:10:47,997 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-12 11:10:47,997 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 11:10:47,998 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 11:10:47,998 INFO L85 PathProgramCache]: Analyzing trace with hash 1237560575, now seen corresponding path program 1 times [2022-07-12 11:10:47,998 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 11:10:47,998 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1428549741] [2022-07-12 11:10:47,998 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 11:10:47,998 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 11:10:48,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 11:10:48,069 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-12 11:10:48,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 11:10:48,074 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-07-12 11:10:48,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 11:10:48,079 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-07-12 11:10:48,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 11:10:48,111 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2022-07-12 11:10:48,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 11:10:48,116 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-07-12 11:10:48,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 11:10:48,136 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2022-07-12 11:10:48,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 11:10:48,142 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2022-07-12 11:10:48,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 11:10:48,146 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2022-07-12 11:10:48,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 11:10:48,151 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-07-12 11:10:48,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 11:10:48,156 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 47 trivial. 0 not checked. [2022-07-12 11:10:48,157 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 11:10:48,157 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1428549741] [2022-07-12 11:10:48,157 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1428549741] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 11:10:48,157 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 11:10:48,157 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-12 11:10:48,157 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1203635268] [2022-07-12 11:10:48,157 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 11:10:48,158 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-12 11:10:48,158 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 11:10:48,158 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-12 11:10:48,158 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-07-12 11:10:48,159 INFO L87 Difference]: Start difference. First operand 104 states and 138 transitions. Second operand has 7 states, 6 states have (on average 6.166666666666667) internal successors, (37), 7 states have internal predecessors, (37), 3 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (9), 2 states have call predecessors, (9), 3 states have call successors, (9) [2022-07-12 11:10:48,234 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 11:10:48,234 INFO L93 Difference]: Finished difference Result 197 states and 264 transitions. [2022-07-12 11:10:48,234 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-12 11:10:48,234 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 6.166666666666667) internal successors, (37), 7 states have internal predecessors, (37), 3 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (9), 2 states have call predecessors, (9), 3 states have call successors, (9) Word has length 75 [2022-07-12 11:10:48,235 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 11:10:48,236 INFO L225 Difference]: With dead ends: 197 [2022-07-12 11:10:48,236 INFO L226 Difference]: Without dead ends: 104 [2022-07-12 11:10:48,236 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2022-07-12 11:10:48,237 INFO L413 NwaCegarLoop]: 116 mSDtfsCounter, 49 mSDsluCounter, 489 mSDsCounter, 0 mSdLazyCounter, 94 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 49 SdHoareTripleChecker+Valid, 605 SdHoareTripleChecker+Invalid, 126 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 94 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-12 11:10:48,237 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [49 Valid, 605 Invalid, 126 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 94 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-12 11:10:48,238 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 104 states. [2022-07-12 11:10:48,242 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 104 to 104. [2022-07-12 11:10:48,242 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 104 states, 67 states have (on average 1.1940298507462686) internal successors, (80), 69 states have internal predecessors, (80), 28 states have call successors, (28), 7 states have call predecessors, (28), 8 states have return successors, (29), 27 states have call predecessors, (29), 27 states have call successors, (29) [2022-07-12 11:10:48,243 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104 states to 104 states and 137 transitions. [2022-07-12 11:10:48,243 INFO L78 Accepts]: Start accepts. Automaton has 104 states and 137 transitions. Word has length 75 [2022-07-12 11:10:48,244 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 11:10:48,244 INFO L495 AbstractCegarLoop]: Abstraction has 104 states and 137 transitions. [2022-07-12 11:10:48,244 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 6.166666666666667) internal successors, (37), 7 states have internal predecessors, (37), 3 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (9), 2 states have call predecessors, (9), 3 states have call successors, (9) [2022-07-12 11:10:48,244 INFO L276 IsEmpty]: Start isEmpty. Operand 104 states and 137 transitions. [2022-07-12 11:10:48,249 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2022-07-12 11:10:48,250 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 11:10:48,250 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 11:10:48,250 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-07-12 11:10:48,250 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 11:10:48,250 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 11:10:48,250 INFO L85 PathProgramCache]: Analyzing trace with hash -1187141198, now seen corresponding path program 1 times [2022-07-12 11:10:48,251 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 11:10:48,251 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1114317254] [2022-07-12 11:10:48,251 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 11:10:48,251 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 11:10:48,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 11:10:48,306 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-12 11:10:48,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 11:10:48,311 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-07-12 11:10:48,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 11:10:48,318 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-07-12 11:10:48,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 11:10:48,346 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-07-12 11:10:48,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 11:10:48,350 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-07-12 11:10:48,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 11:10:48,354 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2022-07-12 11:10:48,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 11:10:48,358 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2022-07-12 11:10:48,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 11:10:48,363 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2022-07-12 11:10:48,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 11:10:48,369 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2022-07-12 11:10:48,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 11:10:48,374 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 47 trivial. 0 not checked. [2022-07-12 11:10:48,374 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 11:10:48,374 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1114317254] [2022-07-12 11:10:48,374 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1114317254] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 11:10:48,375 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 11:10:48,375 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-12 11:10:48,375 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1353398032] [2022-07-12 11:10:48,375 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 11:10:48,376 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-07-12 11:10:48,376 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 11:10:48,376 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-07-12 11:10:48,376 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-07-12 11:10:48,376 INFO L87 Difference]: Start difference. First operand 104 states and 137 transitions. Second operand has 8 states, 7 states have (on average 5.571428571428571) internal successors, (39), 8 states have internal predecessors, (39), 3 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (9), 2 states have call predecessors, (9), 3 states have call successors, (9) [2022-07-12 11:10:48,481 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 11:10:48,481 INFO L93 Difference]: Finished difference Result 206 states and 277 transitions. [2022-07-12 11:10:48,482 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-07-12 11:10:48,482 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 5.571428571428571) internal successors, (39), 8 states have internal predecessors, (39), 3 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (9), 2 states have call predecessors, (9), 3 states have call successors, (9) Word has length 77 [2022-07-12 11:10:48,482 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 11:10:48,483 INFO L225 Difference]: With dead ends: 206 [2022-07-12 11:10:48,483 INFO L226 Difference]: Without dead ends: 112 [2022-07-12 11:10:48,484 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=35, Invalid=97, Unknown=0, NotChecked=0, Total=132 [2022-07-12 11:10:48,484 INFO L413 NwaCegarLoop]: 114 mSDtfsCounter, 75 mSDsluCounter, 584 mSDsCounter, 0 mSdLazyCounter, 132 mSolverCounterSat, 40 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 75 SdHoareTripleChecker+Valid, 698 SdHoareTripleChecker+Invalid, 172 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 132 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-12 11:10:48,485 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [75 Valid, 698 Invalid, 172 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [40 Valid, 132 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-12 11:10:48,485 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 112 states. [2022-07-12 11:10:48,489 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 112 to 105. [2022-07-12 11:10:48,489 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 105 states, 68 states have (on average 1.1911764705882353) internal successors, (81), 70 states have internal predecessors, (81), 28 states have call successors, (28), 7 states have call predecessors, (28), 8 states have return successors, (29), 27 states have call predecessors, (29), 27 states have call successors, (29) [2022-07-12 11:10:48,490 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 105 states to 105 states and 138 transitions. [2022-07-12 11:10:48,490 INFO L78 Accepts]: Start accepts. Automaton has 105 states and 138 transitions. Word has length 77 [2022-07-12 11:10:48,490 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 11:10:48,490 INFO L495 AbstractCegarLoop]: Abstraction has 105 states and 138 transitions. [2022-07-12 11:10:48,490 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 5.571428571428571) internal successors, (39), 8 states have internal predecessors, (39), 3 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (9), 2 states have call predecessors, (9), 3 states have call successors, (9) [2022-07-12 11:10:48,491 INFO L276 IsEmpty]: Start isEmpty. Operand 105 states and 138 transitions. [2022-07-12 11:10:48,491 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2022-07-12 11:10:48,491 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 11:10:48,491 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 11:10:48,491 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-07-12 11:10:48,491 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 11:10:48,492 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 11:10:48,492 INFO L85 PathProgramCache]: Analyzing trace with hash 1548809988, now seen corresponding path program 1 times [2022-07-12 11:10:48,492 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 11:10:48,492 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2010893759] [2022-07-12 11:10:48,492 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 11:10:48,492 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 11:10:48,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 11:10:48,536 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-12 11:10:48,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 11:10:48,540 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-07-12 11:10:48,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 11:10:48,544 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-07-12 11:10:48,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 11:10:48,580 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2022-07-12 11:10:48,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 11:10:48,588 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-07-12 11:10:48,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 11:10:48,592 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2022-07-12 11:10:48,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 11:10:48,599 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2022-07-12 11:10:48,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 11:10:48,606 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2022-07-12 11:10:48,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 11:10:48,611 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-07-12 11:10:48,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 11:10:48,623 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 47 trivial. 0 not checked. [2022-07-12 11:10:48,623 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 11:10:48,623 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2010893759] [2022-07-12 11:10:48,623 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2010893759] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 11:10:48,623 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 11:10:48,623 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-07-12 11:10:48,624 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2089045937] [2022-07-12 11:10:48,624 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 11:10:48,624 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-12 11:10:48,624 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 11:10:48,625 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-12 11:10:48,625 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-12 11:10:48,625 INFO L87 Difference]: Start difference. First operand 105 states and 138 transitions. Second operand has 5 states, 4 states have (on average 10.0) internal successors, (40), 5 states have internal predecessors, (40), 3 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (9), 2 states have call predecessors, (9), 3 states have call successors, (9) [2022-07-12 11:10:48,714 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 11:10:48,714 INFO L93 Difference]: Finished difference Result 202 states and 273 transitions. [2022-07-12 11:10:48,715 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-12 11:10:48,715 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 10.0) internal successors, (40), 5 states have internal predecessors, (40), 3 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (9), 2 states have call predecessors, (9), 3 states have call successors, (9) Word has length 78 [2022-07-12 11:10:48,716 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 11:10:48,718 INFO L225 Difference]: With dead ends: 202 [2022-07-12 11:10:48,718 INFO L226 Difference]: Without dead ends: 111 [2022-07-12 11:10:48,718 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-07-12 11:10:48,719 INFO L413 NwaCegarLoop]: 127 mSDtfsCounter, 23 mSDsluCounter, 307 mSDsCounter, 0 mSdLazyCounter, 36 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 24 SdHoareTripleChecker+Valid, 434 SdHoareTripleChecker+Invalid, 66 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 36 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-12 11:10:48,719 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [24 Valid, 434 Invalid, 66 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [30 Valid, 36 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-12 11:10:48,720 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 111 states. [2022-07-12 11:10:48,724 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 111 to 106. [2022-07-12 11:10:48,724 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 106 states, 69 states have (on average 1.1884057971014492) internal successors, (82), 71 states have internal predecessors, (82), 28 states have call successors, (28), 7 states have call predecessors, (28), 8 states have return successors, (29), 27 states have call predecessors, (29), 27 states have call successors, (29) [2022-07-12 11:10:48,725 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 106 states to 106 states and 139 transitions. [2022-07-12 11:10:48,725 INFO L78 Accepts]: Start accepts. Automaton has 106 states and 139 transitions. Word has length 78 [2022-07-12 11:10:48,726 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 11:10:48,726 INFO L495 AbstractCegarLoop]: Abstraction has 106 states and 139 transitions. [2022-07-12 11:10:48,726 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 10.0) internal successors, (40), 5 states have internal predecessors, (40), 3 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (9), 2 states have call predecessors, (9), 3 states have call successors, (9) [2022-07-12 11:10:48,726 INFO L276 IsEmpty]: Start isEmpty. Operand 106 states and 139 transitions. [2022-07-12 11:10:48,726 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2022-07-12 11:10:48,727 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 11:10:48,727 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 11:10:48,727 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-07-12 11:10:48,727 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 11:10:48,727 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 11:10:48,728 INFO L85 PathProgramCache]: Analyzing trace with hash 1185344546, now seen corresponding path program 1 times [2022-07-12 11:10:48,728 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 11:10:48,728 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1513474747] [2022-07-12 11:10:48,728 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 11:10:48,728 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 11:10:48,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 11:10:48,786 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-12 11:10:48,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 11:10:48,790 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-07-12 11:10:48,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 11:10:48,794 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-07-12 11:10:48,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 11:10:48,813 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-12 11:10:48,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 11:10:48,817 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2022-07-12 11:10:48,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 11:10:48,837 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-07-12 11:10:48,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 11:10:48,841 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2022-07-12 11:10:48,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 11:10:48,846 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2022-07-12 11:10:48,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 11:10:48,850 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2022-07-12 11:10:48,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 11:10:48,853 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2022-07-12 11:10:48,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 11:10:48,858 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 3 proven. 9 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2022-07-12 11:10:48,858 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 11:10:48,858 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1513474747] [2022-07-12 11:10:48,859 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1513474747] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-12 11:10:48,859 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1202052487] [2022-07-12 11:10:48,859 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 11:10:48,859 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-12 11:10:48,859 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-12 11:10:48,860 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-12 11:10:48,861 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-07-12 11:10:49,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 11:10:49,106 INFO L263 TraceCheckSpWp]: Trace formula consists of 716 conjuncts, 29 conjunts are in the unsatisfiable core [2022-07-12 11:10:49,110 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 11:10:49,181 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 27 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2022-07-12 11:10:49,181 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-12 11:10:49,181 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1202052487] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 11:10:49,182 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-12 11:10:49,182 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [7] total 12 [2022-07-12 11:10:49,182 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [719773063] [2022-07-12 11:10:49,182 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 11:10:49,182 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-07-12 11:10:49,182 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 11:10:49,182 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-07-12 11:10:49,182 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2022-07-12 11:10:49,183 INFO L87 Difference]: Start difference. First operand 106 states and 139 transitions. Second operand has 10 states, 8 states have (on average 6.5) internal successors, (52), 9 states have internal predecessors, (52), 5 states have call successors, (12), 2 states have call predecessors, (12), 4 states have return successors, (10), 4 states have call predecessors, (10), 5 states have call successors, (10) [2022-07-12 11:10:49,370 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 11:10:49,371 INFO L93 Difference]: Finished difference Result 203 states and 268 transitions. [2022-07-12 11:10:49,371 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-07-12 11:10:49,371 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 8 states have (on average 6.5) internal successors, (52), 9 states have internal predecessors, (52), 5 states have call successors, (12), 2 states have call predecessors, (12), 4 states have return successors, (10), 4 states have call predecessors, (10), 5 states have call successors, (10) Word has length 86 [2022-07-12 11:10:49,371 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 11:10:49,372 INFO L225 Difference]: With dead ends: 203 [2022-07-12 11:10:49,372 INFO L226 Difference]: Without dead ends: 111 [2022-07-12 11:10:49,372 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 120 GetRequests, 101 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=75, Invalid=345, Unknown=0, NotChecked=0, Total=420 [2022-07-12 11:10:49,373 INFO L413 NwaCegarLoop]: 106 mSDtfsCounter, 132 mSDsluCounter, 565 mSDsCounter, 0 mSdLazyCounter, 219 mSolverCounterSat, 60 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 134 SdHoareTripleChecker+Valid, 671 SdHoareTripleChecker+Invalid, 279 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 60 IncrementalHoareTripleChecker+Valid, 219 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-12 11:10:49,373 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [134 Valid, 671 Invalid, 279 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [60 Valid, 219 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-12 11:10:49,373 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 111 states. [2022-07-12 11:10:49,387 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 111 to 107. [2022-07-12 11:10:49,387 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 107 states, 70 states have (on average 1.1857142857142857) internal successors, (83), 72 states have internal predecessors, (83), 28 states have call successors, (28), 7 states have call predecessors, (28), 8 states have return successors, (29), 27 states have call predecessors, (29), 27 states have call successors, (29) [2022-07-12 11:10:49,388 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 107 states to 107 states and 140 transitions. [2022-07-12 11:10:49,388 INFO L78 Accepts]: Start accepts. Automaton has 107 states and 140 transitions. Word has length 86 [2022-07-12 11:10:49,388 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 11:10:49,388 INFO L495 AbstractCegarLoop]: Abstraction has 107 states and 140 transitions. [2022-07-12 11:10:49,388 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 8 states have (on average 6.5) internal successors, (52), 9 states have internal predecessors, (52), 5 states have call successors, (12), 2 states have call predecessors, (12), 4 states have return successors, (10), 4 states have call predecessors, (10), 5 states have call successors, (10) [2022-07-12 11:10:49,388 INFO L276 IsEmpty]: Start isEmpty. Operand 107 states and 140 transitions. [2022-07-12 11:10:49,389 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2022-07-12 11:10:49,389 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 11:10:49,389 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 11:10:49,409 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-07-12 11:10:49,603 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable8 [2022-07-12 11:10:49,603 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 11:10:49,604 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 11:10:49,604 INFO L85 PathProgramCache]: Analyzing trace with hash 172862485, now seen corresponding path program 1 times [2022-07-12 11:10:49,604 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 11:10:49,604 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2064247218] [2022-07-12 11:10:49,604 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 11:10:49,604 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 11:10:49,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 11:10:49,644 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-12 11:10:49,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 11:10:49,647 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-07-12 11:10:49,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 11:10:49,651 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-07-12 11:10:49,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 11:10:49,717 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-12 11:10:49,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 11:10:49,724 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2022-07-12 11:10:49,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 11:10:49,727 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2022-07-12 11:10:49,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 11:10:49,731 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2022-07-12 11:10:49,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 11:10:49,736 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2022-07-12 11:10:49,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 11:10:49,740 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2022-07-12 11:10:49,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 11:10:49,743 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2022-07-12 11:10:49,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 11:10:49,748 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 47 trivial. 0 not checked. [2022-07-12 11:10:49,748 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 11:10:49,748 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2064247218] [2022-07-12 11:10:49,749 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2064247218] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-12 11:10:49,749 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [181141023] [2022-07-12 11:10:49,749 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 11:10:49,749 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-12 11:10:49,749 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-12 11:10:49,750 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-12 11:10:49,791 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-07-12 11:10:50,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 11:10:50,019 INFO L263 TraceCheckSpWp]: Trace formula consists of 723 conjuncts, 31 conjunts are in the unsatisfiable core [2022-07-12 11:10:50,022 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 11:10:50,146 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 27 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2022-07-12 11:10:50,146 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-12 11:10:50,146 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [181141023] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 11:10:50,146 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-12 11:10:50,146 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [8] total 17 [2022-07-12 11:10:50,146 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1962598953] [2022-07-12 11:10:50,146 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 11:10:50,147 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-07-12 11:10:50,147 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 11:10:50,147 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-07-12 11:10:50,147 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=238, Unknown=0, NotChecked=0, Total=272 [2022-07-12 11:10:50,147 INFO L87 Difference]: Start difference. First operand 107 states and 140 transitions. Second operand has 11 states, 9 states have (on average 6.0) internal successors, (54), 10 states have internal predecessors, (54), 5 states have call successors, (12), 2 states have call predecessors, (12), 4 states have return successors, (10), 4 states have call predecessors, (10), 5 states have call successors, (10) [2022-07-12 11:10:50,388 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 11:10:50,388 INFO L93 Difference]: Finished difference Result 208 states and 274 transitions. [2022-07-12 11:10:50,388 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-07-12 11:10:50,388 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 9 states have (on average 6.0) internal successors, (54), 10 states have internal predecessors, (54), 5 states have call successors, (12), 2 states have call predecessors, (12), 4 states have return successors, (10), 4 states have call predecessors, (10), 5 states have call successors, (10) Word has length 88 [2022-07-12 11:10:50,389 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 11:10:50,389 INFO L225 Difference]: With dead ends: 208 [2022-07-12 11:10:50,389 INFO L226 Difference]: Without dead ends: 115 [2022-07-12 11:10:50,390 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 126 GetRequests, 101 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 69 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=90, Invalid=612, Unknown=0, NotChecked=0, Total=702 [2022-07-12 11:10:50,390 INFO L413 NwaCegarLoop]: 104 mSDtfsCounter, 136 mSDsluCounter, 643 mSDsCounter, 0 mSdLazyCounter, 269 mSolverCounterSat, 62 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 138 SdHoareTripleChecker+Valid, 747 SdHoareTripleChecker+Invalid, 331 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 62 IncrementalHoareTripleChecker+Valid, 269 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-12 11:10:50,391 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [138 Valid, 747 Invalid, 331 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [62 Valid, 269 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-12 11:10:50,391 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 115 states. [2022-07-12 11:10:50,395 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 115 to 108. [2022-07-12 11:10:50,395 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 108 states, 71 states have (on average 1.1830985915492958) internal successors, (84), 73 states have internal predecessors, (84), 28 states have call successors, (28), 7 states have call predecessors, (28), 8 states have return successors, (29), 27 states have call predecessors, (29), 27 states have call successors, (29) [2022-07-12 11:10:50,396 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 108 states to 108 states and 141 transitions. [2022-07-12 11:10:50,396 INFO L78 Accepts]: Start accepts. Automaton has 108 states and 141 transitions. Word has length 88 [2022-07-12 11:10:50,396 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 11:10:50,396 INFO L495 AbstractCegarLoop]: Abstraction has 108 states and 141 transitions. [2022-07-12 11:10:50,396 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 9 states have (on average 6.0) internal successors, (54), 10 states have internal predecessors, (54), 5 states have call successors, (12), 2 states have call predecessors, (12), 4 states have return successors, (10), 4 states have call predecessors, (10), 5 states have call successors, (10) [2022-07-12 11:10:50,396 INFO L276 IsEmpty]: Start isEmpty. Operand 108 states and 141 transitions. [2022-07-12 11:10:50,397 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2022-07-12 11:10:50,397 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 11:10:50,397 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 11:10:50,433 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-07-12 11:10:50,611 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-12 11:10:50,611 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 11:10:50,612 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 11:10:50,612 INFO L85 PathProgramCache]: Analyzing trace with hash 759251201, now seen corresponding path program 1 times [2022-07-12 11:10:50,612 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 11:10:50,612 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1368692613] [2022-07-12 11:10:50,612 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 11:10:50,612 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 11:10:50,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 11:10:50,987 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-12 11:10:50,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 11:10:50,992 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-07-12 11:10:50,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 11:10:50,997 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-07-12 11:10:51,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 11:10:51,008 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-12 11:10:51,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 11:10:51,013 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-07-12 11:10:51,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 11:10:51,019 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-07-12 11:10:51,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 11:10:51,024 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2022-07-12 11:10:51,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 11:10:51,030 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2022-07-12 11:10:51,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 11:10:51,034 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2022-07-12 11:10:51,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 11:10:51,040 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2022-07-12 11:10:51,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 11:10:51,130 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 43 trivial. 0 not checked. [2022-07-12 11:10:51,130 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 11:10:51,130 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1368692613] [2022-07-12 11:10:51,130 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1368692613] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 11:10:51,130 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 11:10:51,131 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-07-12 11:10:51,131 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1120990935] [2022-07-12 11:10:51,131 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 11:10:51,131 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2022-07-12 11:10:51,131 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 11:10:51,132 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2022-07-12 11:10:51,132 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=182, Unknown=0, NotChecked=0, Total=210 [2022-07-12 11:10:51,132 INFO L87 Difference]: Start difference. First operand 108 states and 141 transitions. Second operand has 15 states, 13 states have (on average 4.153846153846154) internal successors, (54), 12 states have internal predecessors, (54), 6 states have call successors, (12), 3 states have call predecessors, (12), 2 states have return successors, (10), 5 states have call predecessors, (10), 5 states have call successors, (10) [2022-07-12 11:10:51,709 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 11:10:51,709 INFO L93 Difference]: Finished difference Result 164 states and 230 transitions. [2022-07-12 11:10:51,709 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-12 11:10:51,710 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 13 states have (on average 4.153846153846154) internal successors, (54), 12 states have internal predecessors, (54), 6 states have call successors, (12), 3 states have call predecessors, (12), 2 states have return successors, (10), 5 states have call predecessors, (10), 5 states have call successors, (10) Word has length 89 [2022-07-12 11:10:51,710 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 11:10:51,714 INFO L225 Difference]: With dead ends: 164 [2022-07-12 11:10:51,714 INFO L226 Difference]: Without dead ends: 162 [2022-07-12 11:10:51,715 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=60, Invalid=402, Unknown=0, NotChecked=0, Total=462 [2022-07-12 11:10:51,715 INFO L413 NwaCegarLoop]: 131 mSDtfsCounter, 56 mSDsluCounter, 1175 mSDsCounter, 0 mSdLazyCounter, 651 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 91 SdHoareTripleChecker+Valid, 1306 SdHoareTripleChecker+Invalid, 681 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 651 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-07-12 11:10:51,715 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [91 Valid, 1306 Invalid, 681 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [30 Valid, 651 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-07-12 11:10:51,719 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 162 states. [2022-07-12 11:10:51,726 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 162 to 143. [2022-07-12 11:10:51,727 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 143 states, 88 states have (on average 1.1590909090909092) internal successors, (102), 92 states have internal predecessors, (102), 43 states have call successors, (43), 9 states have call predecessors, (43), 11 states have return successors, (51), 41 states have call predecessors, (51), 42 states have call successors, (51) [2022-07-12 11:10:51,728 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 143 states to 143 states and 196 transitions. [2022-07-12 11:10:51,728 INFO L78 Accepts]: Start accepts. Automaton has 143 states and 196 transitions. Word has length 89 [2022-07-12 11:10:51,728 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 11:10:51,728 INFO L495 AbstractCegarLoop]: Abstraction has 143 states and 196 transitions. [2022-07-12 11:10:51,728 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 13 states have (on average 4.153846153846154) internal successors, (54), 12 states have internal predecessors, (54), 6 states have call successors, (12), 3 states have call predecessors, (12), 2 states have return successors, (10), 5 states have call predecessors, (10), 5 states have call successors, (10) [2022-07-12 11:10:51,729 INFO L276 IsEmpty]: Start isEmpty. Operand 143 states and 196 transitions. [2022-07-12 11:10:51,729 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2022-07-12 11:10:51,729 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 11:10:51,729 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 11:10:51,730 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-07-12 11:10:51,730 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 11:10:51,730 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 11:10:51,730 INFO L85 PathProgramCache]: Analyzing trace with hash -50095425, now seen corresponding path program 1 times [2022-07-12 11:10:51,730 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 11:10:51,730 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1158752989] [2022-07-12 11:10:51,731 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 11:10:51,731 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 11:10:51,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 11:10:51,870 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-12 11:10:51,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 11:10:51,875 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-07-12 11:10:51,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 11:10:51,880 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-07-12 11:10:51,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 11:10:51,889 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-12 11:10:51,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 11:10:51,894 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-07-12 11:10:51,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 11:10:51,898 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-07-12 11:10:51,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 11:10:51,903 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2022-07-12 11:10:51,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 11:10:51,909 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2022-07-12 11:10:51,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 11:10:51,913 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2022-07-12 11:10:51,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 11:10:51,917 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2022-07-12 11:10:51,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 11:10:51,964 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 43 trivial. 0 not checked. [2022-07-12 11:10:51,964 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 11:10:51,965 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1158752989] [2022-07-12 11:10:51,965 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1158752989] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 11:10:51,965 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 11:10:51,965 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-07-12 11:10:51,965 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1840502367] [2022-07-12 11:10:51,965 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 11:10:51,965 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-07-12 11:10:51,966 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 11:10:51,966 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-07-12 11:10:51,966 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2022-07-12 11:10:51,966 INFO L87 Difference]: Start difference. First operand 143 states and 196 transitions. Second operand has 11 states, 10 states have (on average 5.4) internal successors, (54), 10 states have internal predecessors, (54), 6 states have call successors, (12), 3 states have call predecessors, (12), 2 states have return successors, (10), 5 states have call predecessors, (10), 5 states have call successors, (10) [2022-07-12 11:10:52,250 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 11:10:52,251 INFO L93 Difference]: Finished difference Result 243 states and 336 transitions. [2022-07-12 11:10:52,251 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-07-12 11:10:52,251 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 5.4) internal successors, (54), 10 states have internal predecessors, (54), 6 states have call successors, (12), 3 states have call predecessors, (12), 2 states have return successors, (10), 5 states have call predecessors, (10), 5 states have call successors, (10) Word has length 89 [2022-07-12 11:10:52,251 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 11:10:52,252 INFO L225 Difference]: With dead ends: 243 [2022-07-12 11:10:52,252 INFO L226 Difference]: Without dead ends: 149 [2022-07-12 11:10:52,253 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=53, Invalid=219, Unknown=0, NotChecked=0, Total=272 [2022-07-12 11:10:52,253 INFO L413 NwaCegarLoop]: 115 mSDtfsCounter, 54 mSDsluCounter, 741 mSDsCounter, 0 mSdLazyCounter, 355 mSolverCounterSat, 51 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 54 SdHoareTripleChecker+Valid, 856 SdHoareTripleChecker+Invalid, 406 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 51 IncrementalHoareTripleChecker+Valid, 355 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-07-12 11:10:52,253 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [54 Valid, 856 Invalid, 406 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [51 Valid, 355 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-07-12 11:10:52,253 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 149 states. [2022-07-12 11:10:52,260 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 149 to 148. [2022-07-12 11:10:52,260 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 148 states, 92 states have (on average 1.1630434782608696) internal successors, (107), 97 states have internal predecessors, (107), 43 states have call successors, (43), 9 states have call predecessors, (43), 12 states have return successors, (56), 41 states have call predecessors, (56), 42 states have call successors, (56) [2022-07-12 11:10:52,261 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 148 states to 148 states and 206 transitions. [2022-07-12 11:10:52,261 INFO L78 Accepts]: Start accepts. Automaton has 148 states and 206 transitions. Word has length 89 [2022-07-12 11:10:52,261 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 11:10:52,261 INFO L495 AbstractCegarLoop]: Abstraction has 148 states and 206 transitions. [2022-07-12 11:10:52,261 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 5.4) internal successors, (54), 10 states have internal predecessors, (54), 6 states have call successors, (12), 3 states have call predecessors, (12), 2 states have return successors, (10), 5 states have call predecessors, (10), 5 states have call successors, (10) [2022-07-12 11:10:52,261 INFO L276 IsEmpty]: Start isEmpty. Operand 148 states and 206 transitions. [2022-07-12 11:10:52,262 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2022-07-12 11:10:52,262 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 11:10:52,262 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 11:10:52,262 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-07-12 11:10:52,262 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 11:10:52,263 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 11:10:52,263 INFO L85 PathProgramCache]: Analyzing trace with hash 1974343619, now seen corresponding path program 1 times [2022-07-12 11:10:52,263 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 11:10:52,263 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1450158487] [2022-07-12 11:10:52,263 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 11:10:52,263 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 11:10:52,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 11:10:52,458 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-12 11:10:52,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 11:10:52,464 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-07-12 11:10:52,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 11:10:52,470 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-12 11:10:52,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 11:10:52,564 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-12 11:10:52,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 11:10:52,572 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2022-07-12 11:10:52,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 11:10:52,576 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2022-07-12 11:10:52,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 11:10:52,580 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2022-07-12 11:10:52,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 11:10:52,586 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2022-07-12 11:10:52,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 11:10:52,590 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2022-07-12 11:10:52,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 11:10:52,594 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2022-07-12 11:10:52,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 11:10:52,599 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 47 trivial. 0 not checked. [2022-07-12 11:10:52,600 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 11:10:52,600 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1450158487] [2022-07-12 11:10:52,600 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1450158487] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-12 11:10:52,600 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [397001738] [2022-07-12 11:10:52,600 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 11:10:52,600 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-12 11:10:52,600 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-12 11:10:52,616 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-12 11:10:52,659 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-07-12 11:10:52,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 11:10:52,934 INFO L263 TraceCheckSpWp]: Trace formula consists of 781 conjuncts, 71 conjunts are in the unsatisfiable core [2022-07-12 11:10:52,943 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 11:10:53,018 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 14 [2022-07-12 11:10:53,022 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-12 11:10:53,023 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 16 [2022-07-12 11:10:53,117 INFO L356 Elim1Store]: treesize reduction 38, result has 22.4 percent of original size [2022-07-12 11:10:53,118 WARN L319 FreeRefinementEngine]: Global settings require throwing the following exception [2022-07-12 11:10:53,161 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-07-12 11:10:53,318 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-12 11:10:53,319 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.AssertionError: var is still there: |v_#memory_$Pointer$.base_33| input size 44 context size 44 output size 44 at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1(Elim1Store.java:364) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.ElimStorePlain.applyComplexEliminationRules(ElimStorePlain.java:427) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.DualJunctionSaa.tryToEliminate(DualJunctionSaa.java:190) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.DualJunctionSaa.tryToEliminateOne3(DualJunctionSaa.java:172) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.DualJunctionSaa.tryToEliminateOne2(DualJunctionSaa.java:151) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.DualJunctionSaa.tryToEliminateOne1(DualJunctionSaa.java:140) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.DualJunctionSaa.tryToEliminateOne0(DualJunctionSaa.java:122) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.DualJunctionSaa.tryToEliminateOne(DualJunctionSaa.java:108) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.DualJunctionSaa.tryExhaustivelyToEliminate(DualJunctionSaa.java:93) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.DualJunctionSaa.tryToEliminate(DualJunctionSaa.java:88) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.tryToEliminateOne(QuantifierPusher.java:650) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.applyNewEliminationTechniquesExhaustively(QuantifierPusher.java:611) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.applyDualJunctionEliminationTechniques(QuantifierPusher.java:529) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.tryToPushOverDualFiniteConnective(QuantifierPusher.java:333) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushTermWalker.convert(QuantifierPushTermWalker.java:180) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushTermWalker.convert(QuantifierPushTermWalker.java:1) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.TermContextTransformationEngine$ApplicationTermTask.doStep(TermContextTransformationEngine.java:169) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.TermContextTransformationEngine.transform(TermContextTransformationEngine.java:77) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.TermContextTransformationEngine.transform(TermContextTransformationEngine.java:61) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushTermWalker.eliminate(QuantifierPushTermWalker.java:269) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushTermWalker.eliminate(QuantifierPushTermWalker.java:255) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.PartialQuantifierElimination.eliminate(PartialQuantifierElimination.java:90) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.predicates.IterativePredicateTransformer$QuantifierEliminationPostprocessor.postprocess(IterativePredicateTransformer.java:238) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.predicates.IterativePredicateTransformer.applyPostprocessors(IterativePredicateTransformer.java:420) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.predicates.IterativePredicateTransformer.computeStrongestPostconditionSequence(IterativePredicateTransformer.java:199) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckSpWp.computeInterpolantsUsingUnsatCore(TraceCheckSpWp.java:299) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckSpWp.computeInterpolants(TraceCheckSpWp.java:185) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckSpWp.(TraceCheckSpWp.java:163) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSpWp.construct(IpTcStrategyModuleSpWp.java:108) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSpWp.construct(IpTcStrategyModuleSpWp.java:1) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:101) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getInterpolantComputationStatus(IpTcStrategyModuleBase.java:77) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.tryExecuteInterpolantGenerator(AutomatonFreeRefinementEngine.java:266) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.generateProof(AutomatonFreeRefinementEngine.java:147) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:137) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:85) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:82) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:248) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:431) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.startCegar(AbstractCegarLoop.java:366) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.runCegar(AbstractCegarLoop.java:348) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.executeCegarLoop(TraceAbstractionStarter.java:409) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseProgram(TraceAbstractionStarter.java:300) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseSequentialProgram(TraceAbstractionStarter.java:260) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:173) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:152) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:123) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2022-07-12 11:10:53,322 INFO L158 Benchmark]: Toolchain (without parser) took 9642.70ms. Allocated memory was 117.4MB in the beginning and 333.4MB in the end (delta: 216.0MB). Free memory was 81.6MB in the beginning and 146.9MB in the end (delta: -65.3MB). Peak memory consumption was 152.3MB. Max. memory is 16.1GB. [2022-07-12 11:10:53,322 INFO L158 Benchmark]: CDTParser took 0.14ms. Allocated memory is still 117.4MB. Free memory is still 72.2MB. There was no memory consumed. Max. memory is 16.1GB. [2022-07-12 11:10:53,323 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1313.50ms. Allocated memory was 117.4MB in the beginning and 172.0MB in the end (delta: 54.5MB). Free memory was 81.3MB in the beginning and 116.1MB in the end (delta: -34.7MB). Peak memory consumption was 55.3MB. Max. memory is 16.1GB. [2022-07-12 11:10:53,323 INFO L158 Benchmark]: Boogie Procedure Inliner took 92.14ms. Allocated memory is still 172.0MB. Free memory was 116.1MB in the beginning and 110.8MB in the end (delta: 5.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2022-07-12 11:10:53,323 INFO L158 Benchmark]: Boogie Preprocessor took 26.04ms. Allocated memory is still 172.0MB. Free memory was 110.8MB in the beginning and 107.7MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-07-12 11:10:53,323 INFO L158 Benchmark]: RCFGBuilder took 522.40ms. Allocated memory is still 172.0MB. Free memory was 107.7MB in the beginning and 82.5MB in the end (delta: 25.2MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2022-07-12 11:10:53,323 INFO L158 Benchmark]: TraceAbstraction took 7682.93ms. Allocated memory was 172.0MB in the beginning and 333.4MB in the end (delta: 161.5MB). Free memory was 82.5MB in the beginning and 146.9MB in the end (delta: -64.4MB). Peak memory consumption was 99.1MB. Max. memory is 16.1GB. [2022-07-12 11:10:53,324 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14ms. Allocated memory is still 117.4MB. Free memory is still 72.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1313.50ms. Allocated memory was 117.4MB in the beginning and 172.0MB in the end (delta: 54.5MB). Free memory was 81.3MB in the beginning and 116.1MB in the end (delta: -34.7MB). Peak memory consumption was 55.3MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 92.14ms. Allocated memory is still 172.0MB. Free memory was 116.1MB in the beginning and 110.8MB in the end (delta: 5.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Boogie Preprocessor took 26.04ms. Allocated memory is still 172.0MB. Free memory was 110.8MB in the beginning and 107.7MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 522.40ms. Allocated memory is still 172.0MB. Free memory was 107.7MB in the beginning and 82.5MB in the end (delta: 25.2MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * TraceAbstraction took 7682.93ms. Allocated memory was 172.0MB in the beginning and 333.4MB in the end (delta: 161.5MB). Free memory was 82.5MB in the beginning and 146.9MB in the end (delta: -64.4MB). Peak memory consumption was 99.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: AssertionError: var is still there: |v_#memory_$Pointer$.base_33| input size 44 context size 44 output size 44 de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: AssertionError: var is still there: |v_#memory_$Pointer$.base_33| input size 44 context size 44 output size 44: de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1(Elim1Store.java:364) RESULT: Ultimate could not prove your program: Toolchain returned no result. [2022-07-12 11:10:53,365 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/aws_linked_list_push_back_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 d155cc00d5c2ba6f5ef1d5e883c6d133605de01ed97e4300960f893025d81fd1 --- Real Ultimate output --- This is Ultimate 0.2.2-?-6c24879 [2022-07-12 11:10:55,127 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-12 11:10:55,132 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-12 11:10:55,157 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-12 11:10:55,157 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-12 11:10:55,158 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-12 11:10:55,159 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-12 11:10:55,166 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-12 11:10:55,168 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-12 11:10:55,171 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-12 11:10:55,172 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-12 11:10:55,176 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-12 11:10:55,176 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-12 11:10:55,177 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-12 11:10:55,179 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-12 11:10:55,180 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-12 11:10:55,181 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-12 11:10:55,182 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-12 11:10:55,184 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-12 11:10:55,187 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-12 11:10:55,188 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-12 11:10:55,196 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-12 11:10:55,198 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-12 11:10:55,198 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-12 11:10:55,200 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-12 11:10:55,205 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-12 11:10:55,206 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-12 11:10:55,206 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-12 11:10:55,206 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-12 11:10:55,207 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-12 11:10:55,207 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-12 11:10:55,207 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-12 11:10:55,209 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-12 11:10:55,209 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-12 11:10:55,210 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-12 11:10:55,211 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-12 11:10:55,211 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-12 11:10:55,211 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-12 11:10:55,211 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-12 11:10:55,211 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-12 11:10:55,212 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-12 11:10:55,216 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-12 11:10:55,217 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Bitvector.epf [2022-07-12 11:10:55,244 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-12 11:10:55,244 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-12 11:10:55,244 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-12 11:10:55,244 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-12 11:10:55,245 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-12 11:10:55,245 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-12 11:10:55,245 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-12 11:10:55,245 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-12 11:10:55,246 INFO L138 SettingsManager]: * Use SBE=true [2022-07-12 11:10:55,246 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-12 11:10:55,246 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-12 11:10:55,246 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-12 11:10:55,246 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-12 11:10:55,246 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-12 11:10:55,253 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-07-12 11:10:55,253 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-07-12 11:10:55,253 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-07-12 11:10:55,253 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-12 11:10:55,253 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-12 11:10:55,253 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-12 11:10:55,253 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-12 11:10:55,254 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-12 11:10:55,254 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-12 11:10:55,254 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-12 11:10:55,254 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-12 11:10:55,254 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-12 11:10:55,254 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-12 11:10:55,254 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2022-07-12 11:10:55,254 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-07-12 11:10:55,254 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-12 11:10:55,255 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-12 11:10:55,255 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-12 11:10:55,255 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-07-12 11:10:55,255 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d155cc00d5c2ba6f5ef1d5e883c6d133605de01ed97e4300960f893025d81fd1 [2022-07-12 11:10:55,524 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-12 11:10:55,545 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-12 11:10:55,547 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-12 11:10:55,548 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-12 11:10:55,548 INFO L275 PluginConnector]: CDTParser initialized [2022-07-12 11:10:55,549 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/aws-c-common/aws_linked_list_push_back_harness.i [2022-07-12 11:10:55,599 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b73ca7c21/3d6853a0af7b4a7f94ce0f0b0fed5664/FLAG89c3463b2 [2022-07-12 11:10:56,094 INFO L306 CDTParser]: Found 1 translation units. [2022-07-12 11:10:56,096 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_linked_list_push_back_harness.i [2022-07-12 11:10:56,136 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b73ca7c21/3d6853a0af7b4a7f94ce0f0b0fed5664/FLAG89c3463b2 [2022-07-12 11:10:56,630 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b73ca7c21/3d6853a0af7b4a7f94ce0f0b0fed5664 [2022-07-12 11:10:56,632 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-12 11:10:56,633 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-12 11:10:56,634 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-12 11:10:56,634 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-12 11:10:56,636 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-12 11:10:56,637 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.07 11:10:56" (1/1) ... [2022-07-12 11:10:56,637 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@18629fa1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 11:10:56, skipping insertion in model container [2022-07-12 11:10:56,638 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.07 11:10:56" (1/1) ... [2022-07-12 11:10:56,642 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-12 11:10:56,716 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-12 11:10:56,925 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_linked_list_push_back_harness.i[4499,4512] [2022-07-12 11:10:56,928 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_linked_list_push_back_harness.i[4559,4572] [2022-07-12 11:10:57,540 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-12 11:10:57,541 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-12 11:10:57,541 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-12 11:10:57,541 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-12 11:10:57,542 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-12 11:10:57,548 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-12 11:10:57,550 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-12 11:10:57,551 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-12 11:10:57,552 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-12 11:10:57,554 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-12 11:10:57,555 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-12 11:10:57,556 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-12 11:10:57,556 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-12 11:10:57,810 WARN L611 FunctionHandler]: implicit declaration of function __atomic_load_n [2022-07-12 11:10:57,811 WARN L611 FunctionHandler]: implicit declaration of function __atomic_store_n [2022-07-12 11:10:57,811 WARN L611 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2022-07-12 11:10:57,812 WARN L611 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2022-07-12 11:10:57,813 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2022-07-12 11:10:57,814 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2022-07-12 11:10:57,814 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2022-07-12 11:10:57,815 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2022-07-12 11:10:57,819 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2022-07-12 11:10:57,821 WARN L611 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2022-07-12 11:10:57,918 WARN L611 FunctionHandler]: implicit declaration of function __builtin_va_copy [2022-07-12 11:10:57,932 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator has thrown an exception: java.lang.ArithmeticException: BigInteger out of int range at java.base/java.math.BigInteger.intValueExact(BigInteger.java:4784) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.checkIfNecessaryMemoryModelAdaption(CHandler.java:1009) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:968) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:279) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1384) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:249) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.translateInitializer(CHandler.java:2978) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.handleIASTDeclarator(CHandler.java:2836) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:2138) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:143) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1135) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:211) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1081) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:232) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.chandler.FunctionHandler.handleFunctionDefinition(FunctionHandler.java:371) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1470) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:155) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.processTUchild(CHandler.java:3276) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:2361) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:601) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:134) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainTranslator.translate(MainTranslator.java:192) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainTranslator.run(MainTranslator.java:115) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainTranslator.(MainTranslator.java:93) at de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver.finish(CACSL2BoogieTranslatorObserver.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2022-07-12 11:10:57,938 INFO L158 Benchmark]: Toolchain (without parser) took 1303.30ms. Allocated memory was 54.5MB in the beginning and 67.1MB in the end (delta: 12.6MB). Free memory was 36.3MB in the beginning and 34.8MB in the end (delta: 1.5MB). Peak memory consumption was 23.5MB. Max. memory is 16.1GB. [2022-07-12 11:10:57,939 INFO L158 Benchmark]: CDTParser took 3.89ms. Allocated memory is still 54.5MB. Free memory was 36.6MB in the beginning and 36.6MB in the end (delta: 38.2kB). There was no memory consumed. Max. memory is 16.1GB. [2022-07-12 11:10:57,940 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1302.06ms. Allocated memory was 54.5MB in the beginning and 67.1MB in the end (delta: 12.6MB). Free memory was 36.2MB in the beginning and 34.8MB in the end (delta: 1.4MB). Peak memory consumption was 23.5MB. Max. memory is 16.1GB. [2022-07-12 11:10:57,942 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 3.89ms. Allocated memory is still 54.5MB. Free memory was 36.6MB in the beginning and 36.6MB in the end (delta: 38.2kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1302.06ms. Allocated memory was 54.5MB in the beginning and 67.1MB in the end (delta: 12.6MB). Free memory was 36.2MB in the beginning and 34.8MB in the end (delta: 1.4MB). Peak memory consumption was 23.5MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - ExceptionOrErrorResult: ArithmeticException: BigInteger out of int range de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: ArithmeticException: BigInteger out of int range: java.base/java.math.BigInteger.intValueExact(BigInteger.java:4784) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: ERROR: ExceptionOrErrorResult: ArithmeticException: BigInteger out of int range