./Ultimate.py --spec /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/properties/unreach-call.prp --file /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_priority_queue_capacity_harness.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version a046e57d Calling Ultimate with: /root/.sdkman/candidates/java/current/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 /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_priority_queue_capacity_harness.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --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 3d929c4e9006747fc293836abf67036a0361374cf7a5424bbaba854150966272 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.dk.eval-mul-div-a046e57-m [2024-10-13 07:27:15,677 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-13 07:27:15,729 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2024-10-13 07:27:15,740 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-13 07:27:15,740 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-13 07:27:15,767 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-13 07:27:15,768 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-13 07:27:15,768 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-13 07:27:15,768 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-13 07:27:15,769 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-13 07:27:15,769 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-13 07:27:15,771 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-13 07:27:15,772 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-13 07:27:15,773 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-13 07:27:15,773 INFO L153 SettingsManager]: * Use SBE=true [2024-10-13 07:27:15,774 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-13 07:27:15,774 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-13 07:27:15,774 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-13 07:27:15,774 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-13 07:27:15,775 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-13 07:27:15,775 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-13 07:27:15,779 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-13 07:27:15,779 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-13 07:27:15,780 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-13 07:27:15,780 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-13 07:27:15,780 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-13 07:27:15,780 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-13 07:27:15,780 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-13 07:27:15,781 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-13 07:27:15,781 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-13 07:27:15,781 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-13 07:27:15,781 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-13 07:27:15,781 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-13 07:27:15,781 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-13 07:27:15,782 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-13 07:27:15,782 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-13 07:27:15,782 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-13 07:27:15,782 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-13 07:27:15,782 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-13 07:27:15,783 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3d929c4e9006747fc293836abf67036a0361374cf7a5424bbaba854150966272 [2024-10-13 07:27:15,988 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-13 07:27:16,010 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-13 07:27:16,013 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-13 07:27:16,014 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-13 07:27:16,015 INFO L274 PluginConnector]: CDTParser initialized [2024-10-13 07:27:16,016 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_priority_queue_capacity_harness.i [2024-10-13 07:27:17,300 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-13 07:27:17,647 INFO L384 CDTParser]: Found 1 translation units. [2024-10-13 07:27:17,647 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_priority_queue_capacity_harness.i [2024-10-13 07:27:17,675 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4c3670a40/e01716ff0e854633a284b951cc3a4f34/FLAGdf1041b1b [2024-10-13 07:27:17,860 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4c3670a40/e01716ff0e854633a284b951cc3a4f34 [2024-10-13 07:27:17,862 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-13 07:27:17,863 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-13 07:27:17,864 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-13 07:27:17,864 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-13 07:27:17,868 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-13 07:27:17,868 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 07:27:17" (1/1) ... [2024-10-13 07:27:17,869 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@37335d70 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:27:17, skipping insertion in model container [2024-10-13 07:27:17,869 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 07:27:17" (1/1) ... [2024-10-13 07:27:17,941 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-13 07:27:18,181 WARN L248 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_priority_queue_capacity_harness.i[4501,4514] [2024-10-13 07:27:18,188 WARN L248 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_priority_queue_capacity_harness.i[4561,4574] [2024-10-13 07:27:18,678 WARN L1659 CHandler]: Possible shadowing of function index [2024-10-13 07:27:18,679 WARN L1659 CHandler]: Possible shadowing of function index [2024-10-13 07:27:18,680 WARN L1659 CHandler]: Possible shadowing of function index [2024-10-13 07:27:18,680 WARN L1659 CHandler]: Possible shadowing of function index [2024-10-13 07:27:18,681 WARN L1659 CHandler]: Possible shadowing of function index [2024-10-13 07:27:18,691 WARN L1659 CHandler]: Possible shadowing of function index [2024-10-13 07:27:18,691 WARN L1659 CHandler]: Possible shadowing of function index [2024-10-13 07:27:18,693 WARN L1659 CHandler]: Possible shadowing of function index [2024-10-13 07:27:18,693 WARN L1659 CHandler]: Possible shadowing of function index [2024-10-13 07:27:19,069 WARN L1659 CHandler]: Possible shadowing of function index [2024-10-13 07:27:19,070 WARN L1659 CHandler]: Possible shadowing of function index [2024-10-13 07:27:19,133 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-13 07:27:19,164 INFO L200 MainTranslator]: Completed pre-run [2024-10-13 07:27:19,176 WARN L248 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_priority_queue_capacity_harness.i[4501,4514] [2024-10-13 07:27:19,177 WARN L248 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_priority_queue_capacity_harness.i[4561,4574] [2024-10-13 07:27:19,263 WARN L1659 CHandler]: Possible shadowing of function index [2024-10-13 07:27:19,263 WARN L1659 CHandler]: Possible shadowing of function index [2024-10-13 07:27:19,263 WARN L1659 CHandler]: Possible shadowing of function index [2024-10-13 07:27:19,264 WARN L1659 CHandler]: Possible shadowing of function index [2024-10-13 07:27:19,264 WARN L1659 CHandler]: Possible shadowing of function index [2024-10-13 07:27:19,269 WARN L1659 CHandler]: Possible shadowing of function index [2024-10-13 07:27:19,272 WARN L1659 CHandler]: Possible shadowing of function index [2024-10-13 07:27:19,273 WARN L1659 CHandler]: Possible shadowing of function index [2024-10-13 07:27:19,273 WARN L1659 CHandler]: Possible shadowing of function index [2024-10-13 07:27:19,334 WARN L1659 CHandler]: Possible shadowing of function index [2024-10-13 07:27:19,334 WARN L1659 CHandler]: Possible shadowing of function index [2024-10-13 07:27:19,338 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" : : "r"(pBuf) : "memory"); [7703-7714] [2024-10-13 07:27:19,355 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-13 07:27:19,517 INFO L204 MainTranslator]: Completed translation [2024-10-13 07:27:19,518 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:27:19 WrapperNode [2024-10-13 07:27:19,518 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-13 07:27:19,519 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-13 07:27:19,519 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-13 07:27:19,519 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-13 07:27:19,525 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:27:19" (1/1) ... [2024-10-13 07:27:19,596 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:27:19" (1/1) ... [2024-10-13 07:27:19,663 INFO L138 Inliner]: procedures = 678, calls = 1542, calls flagged for inlining = 54, calls inlined = 10, statements flattened = 694 [2024-10-13 07:27:19,667 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-13 07:27:19,668 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-13 07:27:19,668 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-13 07:27:19,668 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-13 07:27:19,680 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:27:19" (1/1) ... [2024-10-13 07:27:19,680 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:27:19" (1/1) ... [2024-10-13 07:27:19,688 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:27:19" (1/1) ... [2024-10-13 07:27:19,760 INFO L175 MemorySlicer]: Split 334 memory accesses to 6 slices as follows [236, 2, 3, 6, 80, 7]. 71 percent of accesses are in the largest equivalence class. The 265 initializations are split as follows [236, 2, 1, 0, 21, 5]. The 7 writes are split as follows [0, 0, 1, 2, 4, 0]. [2024-10-13 07:27:19,761 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:27:19" (1/1) ... [2024-10-13 07:27:19,762 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:27:19" (1/1) ... [2024-10-13 07:27:19,791 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:27:19" (1/1) ... [2024-10-13 07:27:19,796 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:27:19" (1/1) ... [2024-10-13 07:27:19,802 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:27:19" (1/1) ... [2024-10-13 07:27:19,805 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:27:19" (1/1) ... [2024-10-13 07:27:19,812 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-13 07:27:19,813 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-13 07:27:19,813 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-13 07:27:19,814 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-13 07:27:19,814 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:27:19" (1/1) ... [2024-10-13 07:27:19,822 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-13 07:27:19,833 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-13 07:27:19,850 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-10-13 07:27:19,854 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-10-13 07:27:19,891 INFO L130 BoogieDeclarations]: Found specification of procedure aws_is_mem_zeroed [2024-10-13 07:27:19,892 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_is_mem_zeroed [2024-10-13 07:27:19,892 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-10-13 07:27:19,893 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_is_bounded [2024-10-13 07:27:19,894 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_is_bounded [2024-10-13 07:27:19,894 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_is_valid [2024-10-13 07:27:19,894 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_is_valid [2024-10-13 07:27:19,895 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_bool [2024-10-13 07:27:19,895 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_bool [2024-10-13 07:27:19,895 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-10-13 07:27:19,895 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-10-13 07:27:19,895 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-10-13 07:27:19,895 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-10-13 07:27:19,895 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2024-10-13 07:27:19,896 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2024-10-13 07:27:19,896 INFO L130 BoogieDeclarations]: Found specification of procedure aws_raise_error [2024-10-13 07:27:19,896 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_raise_error [2024-10-13 07:27:19,896 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-10-13 07:27:19,896 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-10-13 07:27:19,896 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-10-13 07:27:19,896 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-13 07:27:19,896 INFO L130 BoogieDeclarations]: Found specification of procedure save_byte_from_array [2024-10-13 07:27:19,897 INFO L138 BoogieDeclarations]: Found implementation of procedure save_byte_from_array [2024-10-13 07:27:19,897 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2024-10-13 07:27:19,897 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2024-10-13 07:27:19,897 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2024-10-13 07:27:19,897 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2024-10-13 07:27:19,897 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#4 [2024-10-13 07:27:19,897 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#5 [2024-10-13 07:27:19,897 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-13 07:27:19,897 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-13 07:27:19,898 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2024-10-13 07:27:19,898 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2024-10-13 07:27:19,898 INFO L130 BoogieDeclarations]: Found specification of procedure assert_byte_from_buffer_matches [2024-10-13 07:27:19,898 INFO L138 BoogieDeclarations]: Found implementation of procedure assert_byte_from_buffer_matches [2024-10-13 07:27:19,898 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_size_t [2024-10-13 07:27:19,898 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_size_t [2024-10-13 07:27:19,898 INFO L130 BoogieDeclarations]: Found specification of procedure aws_mul_size_checked [2024-10-13 07:27:19,898 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_mul_size_checked [2024-10-13 07:27:19,899 INFO L130 BoogieDeclarations]: Found specification of procedure aws_priority_queue_is_valid [2024-10-13 07:27:19,899 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_priority_queue_is_valid [2024-10-13 07:27:19,900 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-10-13 07:27:19,900 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-10-13 07:27:19,900 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-10-13 07:27:19,900 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2024-10-13 07:27:19,900 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2024-10-13 07:27:19,900 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2024-10-13 07:27:19,900 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2024-10-13 07:27:19,901 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#4 [2024-10-13 07:27:19,901 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#5 [2024-10-13 07:27:19,901 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#0 [2024-10-13 07:27:19,901 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#1 [2024-10-13 07:27:19,901 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#2 [2024-10-13 07:27:19,902 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#3 [2024-10-13 07:27:19,902 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#4 [2024-10-13 07:27:19,902 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#5 [2024-10-13 07:27:19,902 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_allocator [2024-10-13 07:27:19,902 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_allocator [2024-10-13 07:27:19,902 INFO L130 BoogieDeclarations]: Found specification of procedure __CPROVER_overflow_mult [2024-10-13 07:27:19,903 INFO L138 BoogieDeclarations]: Found implementation of procedure __CPROVER_overflow_mult [2024-10-13 07:27:19,903 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-10-13 07:27:19,903 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-10-13 07:27:19,903 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-10-13 07:27:19,903 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-10-13 07:27:19,903 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2024-10-13 07:27:19,903 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2024-10-13 07:27:19,903 INFO L130 BoogieDeclarations]: Found specification of procedure assert_array_list_equivalence [2024-10-13 07:27:19,903 INFO L138 BoogieDeclarations]: Found implementation of procedure assert_array_list_equivalence [2024-10-13 07:27:19,903 INFO L130 BoogieDeclarations]: Found specification of procedure ensure_array_list_has_allocated_data_member [2024-10-13 07:27:19,903 INFO L138 BoogieDeclarations]: Found implementation of procedure ensure_array_list_has_allocated_data_member [2024-10-13 07:27:19,903 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-13 07:27:19,903 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-10-13 07:27:19,903 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-10-13 07:27:19,904 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-10-13 07:27:19,904 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2024-10-13 07:27:19,904 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2024-10-13 07:27:20,152 INFO L238 CfgBuilder]: Building ICFG [2024-10-13 07:27:20,154 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-13 07:27:20,707 INFO L? ?]: Removed 144 outVars from TransFormulas that were not future-live. [2024-10-13 07:27:20,707 INFO L287 CfgBuilder]: Performing block encoding [2024-10-13 07:27:20,771 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-13 07:27:20,772 INFO L314 CfgBuilder]: Removed 1 assume(true) statements. [2024-10-13 07:27:20,773 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 07:27:20 BoogieIcfgContainer [2024-10-13 07:27:20,773 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-13 07:27:20,774 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-13 07:27:20,774 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-13 07:27:20,777 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-13 07:27:20,777 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 07:27:17" (1/3) ... [2024-10-13 07:27:20,777 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@55d09705 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 07:27:20, skipping insertion in model container [2024-10-13 07:27:20,778 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:27:19" (2/3) ... [2024-10-13 07:27:20,778 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@55d09705 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 07:27:20, skipping insertion in model container [2024-10-13 07:27:20,778 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 07:27:20" (3/3) ... [2024-10-13 07:27:20,779 INFO L112 eAbstractionObserver]: Analyzing ICFG aws_priority_queue_capacity_harness.i [2024-10-13 07:27:20,792 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-13 07:27:20,792 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-10-13 07:27:20,848 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-13 07:27:20,856 INFO L333 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, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, 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=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@7a7c8741, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-13 07:27:20,856 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-10-13 07:27:20,860 INFO L276 IsEmpty]: Start isEmpty. Operand has 168 states, 102 states have (on average 1.2450980392156863) internal successors, (127), 103 states have internal predecessors, (127), 47 states have call successors, (47), 17 states have call predecessors, (47), 17 states have return successors, (47), 47 states have call predecessors, (47), 47 states have call successors, (47) [2024-10-13 07:27:20,873 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2024-10-13 07:27:20,873 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 07:27:20,874 INFO L215 NwaCegarLoop]: trace histogram [7, 7, 7, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1] [2024-10-13 07:27:20,875 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-13 07:27:20,879 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 07:27:20,879 INFO L85 PathProgramCache]: Analyzing trace with hash 99044165, now seen corresponding path program 1 times [2024-10-13 07:27:20,886 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 07:27:20,886 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1851248366] [2024-10-13 07:27:20,886 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 07:27:20,887 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 07:27:21,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:21,303 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-13 07:27:21,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:21,315 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-10-13 07:27:21,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:21,321 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-10-13 07:27:21,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:21,327 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-13 07:27:21,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:21,332 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-10-13 07:27:21,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:21,341 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-10-13 07:27:21,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:21,349 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-10-13 07:27:21,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:21,361 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-10-13 07:27:21,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:21,372 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-10-13 07:27:21,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:21,414 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-10-13 07:27:21,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:21,432 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-10-13 07:27:21,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:21,440 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-10-13 07:27:21,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:21,446 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2024-10-13 07:27:21,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:21,461 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-10-13 07:27:21,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:21,468 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-10-13 07:27:21,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:21,493 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-10-13 07:27:21,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:21,501 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-10-13 07:27:21,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:21,515 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-10-13 07:27:21,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:21,534 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-10-13 07:27:21,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:21,544 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-10-13 07:27:21,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:21,555 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-10-13 07:27:21,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:21,562 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2024-10-13 07:27:21,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:21,570 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2024-10-13 07:27:21,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:21,577 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2024-10-13 07:27:21,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:21,589 INFO L134 CoverageAnalysis]: Checked inductivity of 135 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 135 trivial. 0 not checked. [2024-10-13 07:27:21,590 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 07:27:21,590 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1851248366] [2024-10-13 07:27:21,590 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1851248366] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 07:27:21,591 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 07:27:21,591 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-13 07:27:21,592 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [244967052] [2024-10-13 07:27:21,592 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 07:27:21,606 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-13 07:27:21,607 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 07:27:21,625 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-13 07:27:21,626 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-13 07:27:21,628 INFO L87 Difference]: Start difference. First operand has 168 states, 102 states have (on average 1.2450980392156863) internal successors, (127), 103 states have internal predecessors, (127), 47 states have call successors, (47), 17 states have call predecessors, (47), 17 states have return successors, (47), 47 states have call predecessors, (47), 47 states have call successors, (47) Second operand has 5 states, 5 states have (on average 8.2) internal successors, (41), 2 states have internal predecessors, (41), 2 states have call successors, (23), 5 states have call predecessors, (23), 2 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2024-10-13 07:27:22,627 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 07:27:22,627 INFO L93 Difference]: Finished difference Result 341 states and 483 transitions. [2024-10-13 07:27:22,629 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-13 07:27:22,630 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.2) internal successors, (41), 2 states have internal predecessors, (41), 2 states have call successors, (23), 5 states have call predecessors, (23), 2 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) Word has length 127 [2024-10-13 07:27:22,631 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 07:27:22,641 INFO L225 Difference]: With dead ends: 341 [2024-10-13 07:27:22,641 INFO L226 Difference]: Without dead ends: 191 [2024-10-13 07:27:22,649 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 58 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2024-10-13 07:27:22,651 INFO L432 NwaCegarLoop]: 68 mSDtfsCounter, 292 mSDsluCounter, 34 mSDsCounter, 0 mSdLazyCounter, 375 mSolverCounterSat, 189 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 299 SdHoareTripleChecker+Valid, 102 SdHoareTripleChecker+Invalid, 564 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 189 IncrementalHoareTripleChecker+Valid, 375 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-10-13 07:27:22,654 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [299 Valid, 102 Invalid, 564 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [189 Valid, 375 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-10-13 07:27:22,669 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 191 states. [2024-10-13 07:27:22,710 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 191 to 166. [2024-10-13 07:27:22,713 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 166 states, 101 states have (on average 1.2178217821782178) internal successors, (123), 102 states have internal predecessors, (123), 47 states have call successors, (47), 17 states have call predecessors, (47), 17 states have return successors, (46), 46 states have call predecessors, (46), 46 states have call successors, (46) [2024-10-13 07:27:22,714 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 166 states to 166 states and 216 transitions. [2024-10-13 07:27:22,718 INFO L78 Accepts]: Start accepts. Automaton has 166 states and 216 transitions. Word has length 127 [2024-10-13 07:27:22,719 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 07:27:22,719 INFO L471 AbstractCegarLoop]: Abstraction has 166 states and 216 transitions. [2024-10-13 07:27:22,720 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.2) internal successors, (41), 2 states have internal predecessors, (41), 2 states have call successors, (23), 5 states have call predecessors, (23), 2 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2024-10-13 07:27:22,720 INFO L276 IsEmpty]: Start isEmpty. Operand 166 states and 216 transitions. [2024-10-13 07:27:22,723 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2024-10-13 07:27:22,724 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 07:27:22,724 INFO L215 NwaCegarLoop]: trace histogram [7, 7, 7, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1] [2024-10-13 07:27:22,724 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-13 07:27:22,724 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-13 07:27:22,725 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 07:27:22,725 INFO L85 PathProgramCache]: Analyzing trace with hash -1923143877, now seen corresponding path program 1 times [2024-10-13 07:27:22,725 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 07:27:22,725 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1068191324] [2024-10-13 07:27:22,725 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 07:27:22,727 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 07:27:22,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:23,146 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-13 07:27:23,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:23,155 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-10-13 07:27:23,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:23,163 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-10-13 07:27:23,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:23,174 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-13 07:27:23,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:23,183 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-10-13 07:27:23,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:23,190 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-10-13 07:27:23,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:23,197 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-10-13 07:27:23,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:23,209 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-10-13 07:27:23,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:23,221 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-10-13 07:27:23,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:23,247 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-10-13 07:27:23,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:23,272 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-10-13 07:27:23,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:23,277 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-10-13 07:27:23,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:23,284 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2024-10-13 07:27:23,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:23,304 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-10-13 07:27:23,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:23,309 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-10-13 07:27:23,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:23,329 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-10-13 07:27:23,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:23,358 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-10-13 07:27:23,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:23,366 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-10-13 07:27:23,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:23,386 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-10-13 07:27:23,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:23,393 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-10-13 07:27:23,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:23,413 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-10-13 07:27:23,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:23,419 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2024-10-13 07:27:23,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:23,425 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2024-10-13 07:27:23,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:23,431 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2024-10-13 07:27:23,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:23,437 INFO L134 CoverageAnalysis]: Checked inductivity of 135 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 135 trivial. 0 not checked. [2024-10-13 07:27:23,437 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 07:27:23,438 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1068191324] [2024-10-13 07:27:23,438 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1068191324] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 07:27:23,438 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 07:27:23,439 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-10-13 07:27:23,440 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2138361027] [2024-10-13 07:27:23,440 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 07:27:23,441 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-10-13 07:27:23,441 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 07:27:23,441 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-10-13 07:27:23,441 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-10-13 07:27:23,442 INFO L87 Difference]: Start difference. First operand 166 states and 216 transitions. Second operand has 8 states, 8 states have (on average 5.125) internal successors, (41), 5 states have internal predecessors, (41), 3 states have call successors, (23), 5 states have call predecessors, (23), 2 states have return successors, (22), 3 states have call predecessors, (22), 3 states have call successors, (22) [2024-10-13 07:27:24,853 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 07:27:24,853 INFO L93 Difference]: Finished difference Result 310 states and 410 transitions. [2024-10-13 07:27:24,853 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-10-13 07:27:24,853 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 5.125) internal successors, (41), 5 states have internal predecessors, (41), 3 states have call successors, (23), 5 states have call predecessors, (23), 2 states have return successors, (22), 3 states have call predecessors, (22), 3 states have call successors, (22) Word has length 127 [2024-10-13 07:27:24,854 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 07:27:24,856 INFO L225 Difference]: With dead ends: 310 [2024-10-13 07:27:24,856 INFO L226 Difference]: Without dead ends: 191 [2024-10-13 07:27:24,857 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 47 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=58, Invalid=152, Unknown=0, NotChecked=0, Total=210 [2024-10-13 07:27:24,861 INFO L432 NwaCegarLoop]: 56 mSDtfsCounter, 289 mSDsluCounter, 93 mSDsCounter, 0 mSdLazyCounter, 997 mSolverCounterSat, 184 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 315 SdHoareTripleChecker+Valid, 149 SdHoareTripleChecker+Invalid, 1181 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 184 IncrementalHoareTripleChecker+Valid, 997 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-10-13 07:27:24,861 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [315 Valid, 149 Invalid, 1181 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [184 Valid, 997 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-10-13 07:27:24,862 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 191 states. [2024-10-13 07:27:24,880 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 191 to 166. [2024-10-13 07:27:24,880 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 166 states, 101 states have (on average 1.2079207920792079) internal successors, (122), 102 states have internal predecessors, (122), 47 states have call successors, (47), 17 states have call predecessors, (47), 17 states have return successors, (46), 46 states have call predecessors, (46), 46 states have call successors, (46) [2024-10-13 07:27:24,885 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 166 states to 166 states and 215 transitions. [2024-10-13 07:27:24,885 INFO L78 Accepts]: Start accepts. Automaton has 166 states and 215 transitions. Word has length 127 [2024-10-13 07:27:24,885 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 07:27:24,886 INFO L471 AbstractCegarLoop]: Abstraction has 166 states and 215 transitions. [2024-10-13 07:27:24,886 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 5.125) internal successors, (41), 5 states have internal predecessors, (41), 3 states have call successors, (23), 5 states have call predecessors, (23), 2 states have return successors, (22), 3 states have call predecessors, (22), 3 states have call successors, (22) [2024-10-13 07:27:24,886 INFO L276 IsEmpty]: Start isEmpty. Operand 166 states and 215 transitions. [2024-10-13 07:27:24,891 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2024-10-13 07:27:24,891 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 07:27:24,891 INFO L215 NwaCegarLoop]: trace histogram [7, 7, 7, 6, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 07:27:24,892 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-13 07:27:24,892 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-13 07:27:24,892 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 07:27:24,892 INFO L85 PathProgramCache]: Analyzing trace with hash 204354829, now seen corresponding path program 1 times [2024-10-13 07:27:24,892 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 07:27:24,892 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [293336192] [2024-10-13 07:27:24,892 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 07:27:24,892 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 07:27:24,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:25,275 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-13 07:27:25,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:25,282 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-10-13 07:27:25,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:25,289 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-10-13 07:27:25,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:25,295 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-13 07:27:25,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:25,302 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-10-13 07:27:25,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:25,310 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-10-13 07:27:25,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:25,317 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-10-13 07:27:25,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:25,326 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-10-13 07:27:25,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:25,335 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-10-13 07:27:25,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:25,359 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-10-13 07:27:25,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:25,374 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-10-13 07:27:25,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:25,378 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-10-13 07:27:25,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:25,382 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2024-10-13 07:27:25,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:25,397 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-10-13 07:27:25,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:25,402 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-10-13 07:27:25,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:25,417 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-10-13 07:27:25,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:25,471 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-13 07:27:25,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:25,502 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2024-10-13 07:27:25,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:25,517 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2024-10-13 07:27:25,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:25,539 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2024-10-13 07:27:25,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:25,545 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2024-10-13 07:27:25,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:25,551 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2024-10-13 07:27:25,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:25,555 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2024-10-13 07:27:25,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:25,560 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2024-10-13 07:27:25,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:25,565 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2024-10-13 07:27:25,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:25,571 INFO L134 CoverageAnalysis]: Checked inductivity of 143 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 137 trivial. 0 not checked. [2024-10-13 07:27:25,571 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 07:27:25,571 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [293336192] [2024-10-13 07:27:25,571 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [293336192] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-13 07:27:25,572 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1434190402] [2024-10-13 07:27:25,572 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 07:27:25,572 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-13 07:27:25,572 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-13 07:27:25,589 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) [2024-10-13 07:27:25,590 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-10-13 07:27:25,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:25,975 INFO L255 TraceCheckSpWp]: Trace formula consists of 2363 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-10-13 07:27:25,989 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-13 07:27:26,126 INFO L134 CoverageAnalysis]: Checked inductivity of 143 backedges. 56 proven. 0 refuted. 0 times theorem prover too weak. 87 trivial. 0 not checked. [2024-10-13 07:27:26,127 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-13 07:27:26,127 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1434190402] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 07:27:26,127 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-13 07:27:26,127 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [11] total 16 [2024-10-13 07:27:26,127 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1203812100] [2024-10-13 07:27:26,127 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 07:27:26,128 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-13 07:27:26,128 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 07:27:26,128 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-13 07:27:26,129 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=210, Unknown=0, NotChecked=0, Total=240 [2024-10-13 07:27:26,129 INFO L87 Difference]: Start difference. First operand 166 states and 215 transitions. Second operand has 7 states, 7 states have (on average 7.142857142857143) internal successors, (50), 7 states have internal predecessors, (50), 4 states have call successors, (24), 2 states have call predecessors, (24), 4 states have return successors, (23), 4 states have call predecessors, (23), 4 states have call successors, (23) [2024-10-13 07:27:26,384 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 07:27:26,384 INFO L93 Difference]: Finished difference Result 304 states and 399 transitions. [2024-10-13 07:27:26,384 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-10-13 07:27:26,385 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.142857142857143) internal successors, (50), 7 states have internal predecessors, (50), 4 states have call successors, (24), 2 states have call predecessors, (24), 4 states have return successors, (23), 4 states have call predecessors, (23), 4 states have call successors, (23) Word has length 135 [2024-10-13 07:27:26,385 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 07:27:26,386 INFO L225 Difference]: With dead ends: 304 [2024-10-13 07:27:26,386 INFO L226 Difference]: Without dead ends: 168 [2024-10-13 07:27:26,387 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 192 GetRequests, 177 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=34, Invalid=238, Unknown=0, NotChecked=0, Total=272 [2024-10-13 07:27:26,388 INFO L432 NwaCegarLoop]: 179 mSDtfsCounter, 37 mSDsluCounter, 842 mSDsCounter, 0 mSdLazyCounter, 218 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 59 SdHoareTripleChecker+Valid, 1021 SdHoareTripleChecker+Invalid, 219 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 218 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-13 07:27:26,388 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [59 Valid, 1021 Invalid, 219 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 218 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-13 07:27:26,389 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 168 states. [2024-10-13 07:27:26,401 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 168 to 168. [2024-10-13 07:27:26,402 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 168 states, 102 states have (on average 1.2058823529411764) internal successors, (123), 104 states have internal predecessors, (123), 47 states have call successors, (47), 17 states have call predecessors, (47), 18 states have return successors, (49), 46 states have call predecessors, (49), 46 states have call successors, (49) [2024-10-13 07:27:26,404 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 168 states to 168 states and 219 transitions. [2024-10-13 07:27:26,406 INFO L78 Accepts]: Start accepts. Automaton has 168 states and 219 transitions. Word has length 135 [2024-10-13 07:27:26,406 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 07:27:26,406 INFO L471 AbstractCegarLoop]: Abstraction has 168 states and 219 transitions. [2024-10-13 07:27:26,406 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 7.142857142857143) internal successors, (50), 7 states have internal predecessors, (50), 4 states have call successors, (24), 2 states have call predecessors, (24), 4 states have return successors, (23), 4 states have call predecessors, (23), 4 states have call successors, (23) [2024-10-13 07:27:26,406 INFO L276 IsEmpty]: Start isEmpty. Operand 168 states and 219 transitions. [2024-10-13 07:27:26,408 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2024-10-13 07:27:26,411 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 07:27:26,411 INFO L215 NwaCegarLoop]: trace histogram [7, 7, 7, 6, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 07:27:26,431 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-10-13 07:27:26,612 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-13 07:27:26,613 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-13 07:27:26,613 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 07:27:26,613 INFO L85 PathProgramCache]: Analyzing trace with hash -78313466, now seen corresponding path program 1 times [2024-10-13 07:27:26,613 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 07:27:26,613 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1088290994] [2024-10-13 07:27:26,613 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 07:27:26,613 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 07:27:26,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:27,053 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-13 07:27:27,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:27,060 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-10-13 07:27:27,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:27,065 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-10-13 07:27:27,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:27,070 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-13 07:27:27,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:27,077 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-10-13 07:27:27,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:27,086 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-10-13 07:27:27,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:27,091 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-10-13 07:27:27,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:27,100 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-10-13 07:27:27,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:27,109 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-10-13 07:27:27,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:27,133 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-10-13 07:27:27,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:27,147 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-10-13 07:27:27,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:27,151 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-10-13 07:27:27,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:27,155 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2024-10-13 07:27:27,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:27,168 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-10-13 07:27:27,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:27,173 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-10-13 07:27:27,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:27,190 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-10-13 07:27:27,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:27,306 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-13 07:27:27,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:27,342 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-13 07:27:27,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:27,361 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-13 07:27:27,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:27,369 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-10-13 07:27:27,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:27,376 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-10-13 07:27:27,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:27,395 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-10-13 07:27:27,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:27,403 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2024-10-13 07:27:27,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:27,410 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2024-10-13 07:27:27,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:27,417 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2024-10-13 07:27:27,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:27,426 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2024-10-13 07:27:27,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:27,433 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2024-10-13 07:27:27,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:27,440 INFO L134 CoverageAnalysis]: Checked inductivity of 143 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 143 trivial. 0 not checked. [2024-10-13 07:27:27,441 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 07:27:27,441 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1088290994] [2024-10-13 07:27:27,441 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1088290994] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 07:27:27,441 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 07:27:27,441 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-10-13 07:27:27,441 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1939029967] [2024-10-13 07:27:27,441 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 07:27:27,443 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-10-13 07:27:27,443 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 07:27:27,444 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-10-13 07:27:27,444 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2024-10-13 07:27:27,444 INFO L87 Difference]: Start difference. First operand 168 states and 219 transitions. Second operand has 9 states, 9 states have (on average 6.0) internal successors, (54), 5 states have internal predecessors, (54), 4 states have call successors, (26), 6 states have call predecessors, (26), 2 states have return successors, (25), 4 states have call predecessors, (25), 4 states have call successors, (25) [2024-10-13 07:27:28,754 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 07:27:28,754 INFO L93 Difference]: Finished difference Result 291 states and 381 transitions. [2024-10-13 07:27:28,755 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-10-13 07:27:28,755 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 6.0) internal successors, (54), 5 states have internal predecessors, (54), 4 states have call successors, (26), 6 states have call predecessors, (26), 2 states have return successors, (25), 4 states have call predecessors, (25), 4 states have call successors, (25) Word has length 148 [2024-10-13 07:27:28,755 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 07:27:28,758 INFO L225 Difference]: With dead ends: 291 [2024-10-13 07:27:28,758 INFO L226 Difference]: Without dead ends: 172 [2024-10-13 07:27:28,759 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 68 GetRequests, 54 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=61, Invalid=179, Unknown=0, NotChecked=0, Total=240 [2024-10-13 07:27:28,759 INFO L432 NwaCegarLoop]: 55 mSDtfsCounter, 247 mSDsluCounter, 101 mSDsCounter, 0 mSdLazyCounter, 980 mSolverCounterSat, 176 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 269 SdHoareTripleChecker+Valid, 156 SdHoareTripleChecker+Invalid, 1156 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 176 IncrementalHoareTripleChecker+Valid, 980 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-10-13 07:27:28,759 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [269 Valid, 156 Invalid, 1156 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [176 Valid, 980 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-10-13 07:27:28,760 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 172 states. [2024-10-13 07:27:28,783 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 172 to 168. [2024-10-13 07:27:28,784 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 168 states, 102 states have (on average 1.196078431372549) internal successors, (122), 104 states have internal predecessors, (122), 47 states have call successors, (47), 17 states have call predecessors, (47), 18 states have return successors, (49), 46 states have call predecessors, (49), 46 states have call successors, (49) [2024-10-13 07:27:28,785 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 168 states to 168 states and 218 transitions. [2024-10-13 07:27:28,785 INFO L78 Accepts]: Start accepts. Automaton has 168 states and 218 transitions. Word has length 148 [2024-10-13 07:27:28,786 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 07:27:28,786 INFO L471 AbstractCegarLoop]: Abstraction has 168 states and 218 transitions. [2024-10-13 07:27:28,786 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 6.0) internal successors, (54), 5 states have internal predecessors, (54), 4 states have call successors, (26), 6 states have call predecessors, (26), 2 states have return successors, (25), 4 states have call predecessors, (25), 4 states have call successors, (25) [2024-10-13 07:27:28,786 INFO L276 IsEmpty]: Start isEmpty. Operand 168 states and 218 transitions. [2024-10-13 07:27:28,787 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 165 [2024-10-13 07:27:28,787 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 07:27:28,788 INFO L215 NwaCegarLoop]: trace histogram [7, 7, 7, 6, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 07:27:28,788 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-10-13 07:27:28,788 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-13 07:27:28,788 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 07:27:28,788 INFO L85 PathProgramCache]: Analyzing trace with hash 1212795781, now seen corresponding path program 1 times [2024-10-13 07:27:28,788 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 07:27:28,789 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [709222627] [2024-10-13 07:27:28,789 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 07:27:28,789 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 07:27:28,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:29,217 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-13 07:27:29,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:29,222 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-10-13 07:27:29,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:29,226 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-10-13 07:27:29,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:29,232 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-13 07:27:29,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:29,237 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-10-13 07:27:29,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:29,242 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-10-13 07:27:29,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:29,246 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-10-13 07:27:29,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:29,253 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-10-13 07:27:29,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:29,260 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-10-13 07:27:29,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:29,282 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-10-13 07:27:29,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:29,295 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-10-13 07:27:29,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:29,300 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-10-13 07:27:29,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:29,305 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2024-10-13 07:27:29,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:29,317 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-10-13 07:27:29,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:29,335 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-10-13 07:27:29,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:29,350 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-10-13 07:27:29,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:29,500 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-13 07:27:29,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:29,522 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-13 07:27:29,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:29,538 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-13 07:27:29,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:29,544 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-10-13 07:27:29,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:29,575 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2024-10-13 07:27:29,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:29,581 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2024-10-13 07:27:29,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:29,599 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2024-10-13 07:27:29,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:29,606 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2024-10-13 07:27:29,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:29,615 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2024-10-13 07:27:29,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:29,620 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2024-10-13 07:27:29,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:29,626 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2024-10-13 07:27:29,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:29,631 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2024-10-13 07:27:29,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:29,636 INFO L134 CoverageAnalysis]: Checked inductivity of 155 backedges. 3 proven. 6 refuted. 0 times theorem prover too weak. 146 trivial. 0 not checked. [2024-10-13 07:27:29,636 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 07:27:29,636 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [709222627] [2024-10-13 07:27:29,636 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [709222627] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-13 07:27:29,636 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1998061895] [2024-10-13 07:27:29,636 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 07:27:29,636 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-13 07:27:29,637 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-13 07:27:29,638 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) [2024-10-13 07:27:29,639 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-10-13 07:27:30,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:30,038 INFO L255 TraceCheckSpWp]: Trace formula consists of 2570 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-10-13 07:27:30,044 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-13 07:27:30,167 INFO L134 CoverageAnalysis]: Checked inductivity of 155 backedges. 67 proven. 0 refuted. 0 times theorem prover too weak. 88 trivial. 0 not checked. [2024-10-13 07:27:30,168 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-13 07:27:30,168 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1998061895] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 07:27:30,168 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-13 07:27:30,168 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [13] total 19 [2024-10-13 07:27:30,168 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [880182996] [2024-10-13 07:27:30,168 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 07:27:30,169 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-10-13 07:27:30,169 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 07:27:30,169 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-10-13 07:27:30,170 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=301, Unknown=0, NotChecked=0, Total=342 [2024-10-13 07:27:30,170 INFO L87 Difference]: Start difference. First operand 168 states and 218 transitions. Second operand has 8 states, 8 states have (on average 9.125) internal successors, (73), 8 states have internal predecessors, (73), 5 states have call successors, (27), 2 states have call predecessors, (27), 4 states have return successors, (26), 5 states have call predecessors, (26), 5 states have call successors, (26) [2024-10-13 07:27:30,577 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 07:27:30,577 INFO L93 Difference]: Finished difference Result 303 states and 394 transitions. [2024-10-13 07:27:30,581 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-13 07:27:30,581 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 9.125) internal successors, (73), 8 states have internal predecessors, (73), 5 states have call successors, (27), 2 states have call predecessors, (27), 4 states have return successors, (26), 5 states have call predecessors, (26), 5 states have call successors, (26) Word has length 164 [2024-10-13 07:27:30,582 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 07:27:30,583 INFO L225 Difference]: With dead ends: 303 [2024-10-13 07:27:30,583 INFO L226 Difference]: Without dead ends: 168 [2024-10-13 07:27:30,585 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 226 GetRequests, 208 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=45, Invalid=335, Unknown=0, NotChecked=0, Total=380 [2024-10-13 07:27:30,587 INFO L432 NwaCegarLoop]: 171 mSDtfsCounter, 59 mSDsluCounter, 954 mSDsCounter, 0 mSdLazyCounter, 291 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 79 SdHoareTripleChecker+Valid, 1125 SdHoareTripleChecker+Invalid, 294 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 291 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-10-13 07:27:30,587 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [79 Valid, 1125 Invalid, 294 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 291 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-10-13 07:27:30,587 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 168 states. [2024-10-13 07:27:30,602 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 168 to 168. [2024-10-13 07:27:30,602 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 168 states, 102 states have (on average 1.196078431372549) internal successors, (122), 104 states have internal predecessors, (122), 47 states have call successors, (47), 17 states have call predecessors, (47), 18 states have return successors, (48), 46 states have call predecessors, (48), 46 states have call successors, (48) [2024-10-13 07:27:30,603 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 168 states to 168 states and 217 transitions. [2024-10-13 07:27:30,604 INFO L78 Accepts]: Start accepts. Automaton has 168 states and 217 transitions. Word has length 164 [2024-10-13 07:27:30,604 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 07:27:30,604 INFO L471 AbstractCegarLoop]: Abstraction has 168 states and 217 transitions. [2024-10-13 07:27:30,604 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 9.125) internal successors, (73), 8 states have internal predecessors, (73), 5 states have call successors, (27), 2 states have call predecessors, (27), 4 states have return successors, (26), 5 states have call predecessors, (26), 5 states have call successors, (26) [2024-10-13 07:27:30,605 INFO L276 IsEmpty]: Start isEmpty. Operand 168 states and 217 transitions. [2024-10-13 07:27:30,606 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 178 [2024-10-13 07:27:30,606 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 07:27:30,606 INFO L215 NwaCegarLoop]: trace histogram [7, 7, 7, 6, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 07:27:30,623 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-10-13 07:27:30,806 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-13 07:27:30,807 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-13 07:27:30,807 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 07:27:30,807 INFO L85 PathProgramCache]: Analyzing trace with hash -1390049228, now seen corresponding path program 2 times [2024-10-13 07:27:30,807 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 07:27:30,807 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [818088680] [2024-10-13 07:27:30,807 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 07:27:30,807 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 07:27:30,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:31,465 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-13 07:27:31,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:31,470 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-10-13 07:27:31,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:31,474 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-10-13 07:27:31,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:31,479 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-13 07:27:31,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:31,483 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-10-13 07:27:31,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:31,488 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-10-13 07:27:31,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:31,493 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-10-13 07:27:31,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:31,501 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-10-13 07:27:31,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:31,508 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-10-13 07:27:31,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:31,531 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-10-13 07:27:31,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:31,544 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-10-13 07:27:31,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:31,549 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-10-13 07:27:31,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:31,552 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2024-10-13 07:27:31,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:31,565 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-10-13 07:27:31,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:31,570 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-10-13 07:27:31,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:31,586 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-10-13 07:27:31,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:32,087 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-13 07:27:32,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:32,103 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-13 07:27:32,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:32,121 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-13 07:27:32,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:32,126 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-10-13 07:27:32,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:32,140 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-13 07:27:32,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:32,149 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-13 07:27:32,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:32,154 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2024-10-13 07:27:32,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:32,160 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2024-10-13 07:27:32,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:32,180 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2024-10-13 07:27:32,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:32,187 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2024-10-13 07:27:32,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:32,194 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2024-10-13 07:27:32,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:32,200 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2024-10-13 07:27:32,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:32,233 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2024-10-13 07:27:32,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:32,239 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2024-10-13 07:27:32,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:32,244 INFO L134 CoverageAnalysis]: Checked inductivity of 168 backedges. 6 proven. 3 refuted. 0 times theorem prover too weak. 159 trivial. 0 not checked. [2024-10-13 07:27:32,245 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 07:27:32,245 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [818088680] [2024-10-13 07:27:32,245 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [818088680] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-13 07:27:32,245 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1985382404] [2024-10-13 07:27:32,245 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-10-13 07:27:32,245 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-13 07:27:32,245 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-13 07:27:32,247 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) [2024-10-13 07:27:32,248 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-10-13 07:27:32,795 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-10-13 07:27:32,796 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-13 07:27:32,809 INFO L255 TraceCheckSpWp]: Trace formula consists of 2705 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-10-13 07:27:32,815 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-13 07:27:32,937 INFO L134 CoverageAnalysis]: Checked inductivity of 168 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 159 trivial. 0 not checked. [2024-10-13 07:27:32,938 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-13 07:27:32,938 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1985382404] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 07:27:32,938 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-13 07:27:32,938 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [15] total 19 [2024-10-13 07:27:32,939 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [39346862] [2024-10-13 07:27:32,939 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 07:27:32,939 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-13 07:27:32,940 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 07:27:32,940 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-13 07:27:32,940 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=302, Unknown=0, NotChecked=0, Total=342 [2024-10-13 07:27:32,941 INFO L87 Difference]: Start difference. First operand 168 states and 217 transitions. Second operand has 6 states, 6 states have (on average 11.333333333333334) internal successors, (68), 6 states have internal predecessors, (68), 4 states have call successors, (27), 2 states have call predecessors, (27), 2 states have return successors, (26), 4 states have call predecessors, (26), 3 states have call successors, (26) [2024-10-13 07:27:33,219 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 07:27:33,219 INFO L93 Difference]: Finished difference Result 266 states and 340 transitions. [2024-10-13 07:27:33,219 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-13 07:27:33,220 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 11.333333333333334) internal successors, (68), 6 states have internal predecessors, (68), 4 states have call successors, (27), 2 states have call predecessors, (27), 2 states have return successors, (26), 4 states have call predecessors, (26), 3 states have call successors, (26) Word has length 177 [2024-10-13 07:27:33,220 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 07:27:33,221 INFO L225 Difference]: With dead ends: 266 [2024-10-13 07:27:33,221 INFO L226 Difference]: Without dead ends: 166 [2024-10-13 07:27:33,222 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 247 GetRequests, 229 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=44, Invalid=336, Unknown=0, NotChecked=0, Total=380 [2024-10-13 07:27:33,222 INFO L432 NwaCegarLoop]: 181 mSDtfsCounter, 16 mSDsluCounter, 673 mSDsCounter, 0 mSdLazyCounter, 150 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 854 SdHoareTripleChecker+Invalid, 158 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 150 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-10-13 07:27:33,222 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [21 Valid, 854 Invalid, 158 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 150 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-10-13 07:27:33,223 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 166 states. [2024-10-13 07:27:33,233 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 166 to 166. [2024-10-13 07:27:33,235 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 166 states, 101 states have (on average 1.188118811881188) internal successors, (120), 102 states have internal predecessors, (120), 47 states have call successors, (47), 17 states have call predecessors, (47), 17 states have return successors, (46), 46 states have call predecessors, (46), 46 states have call successors, (46) [2024-10-13 07:27:33,236 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 166 states to 166 states and 213 transitions. [2024-10-13 07:27:33,237 INFO L78 Accepts]: Start accepts. Automaton has 166 states and 213 transitions. Word has length 177 [2024-10-13 07:27:33,237 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 07:27:33,237 INFO L471 AbstractCegarLoop]: Abstraction has 166 states and 213 transitions. [2024-10-13 07:27:33,238 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.333333333333334) internal successors, (68), 6 states have internal predecessors, (68), 4 states have call successors, (27), 2 states have call predecessors, (27), 2 states have return successors, (26), 4 states have call predecessors, (26), 3 states have call successors, (26) [2024-10-13 07:27:33,238 INFO L276 IsEmpty]: Start isEmpty. Operand 166 states and 213 transitions. [2024-10-13 07:27:33,239 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 204 [2024-10-13 07:27:33,239 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 07:27:33,239 INFO L215 NwaCegarLoop]: trace histogram [7, 7, 7, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 07:27:33,258 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-10-13 07:27:33,443 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-13 07:27:33,444 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-13 07:27:33,444 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 07:27:33,444 INFO L85 PathProgramCache]: Analyzing trace with hash -2102699654, now seen corresponding path program 1 times [2024-10-13 07:27:33,444 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 07:27:33,445 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [160748975] [2024-10-13 07:27:33,445 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 07:27:33,445 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 07:27:34,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:34,817 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-13 07:27:34,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:34,822 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-10-13 07:27:34,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:34,827 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-10-13 07:27:34,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:34,831 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-13 07:27:34,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:34,834 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-10-13 07:27:34,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:34,838 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-10-13 07:27:34,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:34,842 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-10-13 07:27:34,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:34,848 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-10-13 07:27:34,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:34,853 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-10-13 07:27:34,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:34,874 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-10-13 07:27:34,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:34,882 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-10-13 07:27:34,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:34,886 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-10-13 07:27:34,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:34,890 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2024-10-13 07:27:34,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:34,898 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-10-13 07:27:34,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:34,902 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-10-13 07:27:34,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:34,917 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-10-13 07:27:34,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:35,184 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-13 07:27:35,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:35,197 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-13 07:27:35,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:35,213 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-13 07:27:35,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:35,218 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-10-13 07:27:35,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:35,233 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-13 07:27:35,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:35,242 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-13 07:27:35,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:35,249 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2024-10-13 07:27:35,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:35,254 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2024-10-13 07:27:35,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:35,271 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2024-10-13 07:27:35,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:35,277 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2024-10-13 07:27:35,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:35,311 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2024-10-13 07:27:35,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:35,316 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2024-10-13 07:27:35,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:35,331 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-13 07:27:35,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:35,341 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-13 07:27:35,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:35,346 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2024-10-13 07:27:35,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:35,351 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 181 [2024-10-13 07:27:35,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:35,369 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-13 07:27:35,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:35,379 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-13 07:27:35,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:35,386 INFO L134 CoverageAnalysis]: Checked inductivity of 233 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 233 trivial. 0 not checked. [2024-10-13 07:27:35,387 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 07:27:35,387 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [160748975] [2024-10-13 07:27:35,387 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [160748975] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 07:27:35,387 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 07:27:35,387 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-10-13 07:27:35,387 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [742235775] [2024-10-13 07:27:35,387 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 07:27:35,388 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-10-13 07:27:35,388 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 07:27:35,389 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-10-13 07:27:35,389 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2024-10-13 07:27:35,389 INFO L87 Difference]: Start difference. First operand 166 states and 213 transitions. Second operand has 10 states, 10 states have (on average 6.4) internal successors, (64), 6 states have internal predecessors, (64), 2 states have call successors, (27), 6 states have call predecessors, (27), 2 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) [2024-10-13 07:27:36,581 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 07:27:36,582 INFO L93 Difference]: Finished difference Result 298 states and 384 transitions. [2024-10-13 07:27:36,582 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-10-13 07:27:36,582 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 6.4) internal successors, (64), 6 states have internal predecessors, (64), 2 states have call successors, (27), 6 states have call predecessors, (27), 2 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) Word has length 203 [2024-10-13 07:27:36,582 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 07:27:36,584 INFO L225 Difference]: With dead ends: 298 [2024-10-13 07:27:36,584 INFO L226 Difference]: Without dead ends: 181 [2024-10-13 07:27:36,584 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 86 GetRequests, 69 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=76, Invalid=266, Unknown=0, NotChecked=0, Total=342 [2024-10-13 07:27:36,585 INFO L432 NwaCegarLoop]: 67 mSDtfsCounter, 249 mSDsluCounter, 150 mSDsCounter, 0 mSdLazyCounter, 980 mSolverCounterSat, 175 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 255 SdHoareTripleChecker+Valid, 217 SdHoareTripleChecker+Invalid, 1155 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 175 IncrementalHoareTripleChecker+Valid, 980 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-10-13 07:27:36,585 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [255 Valid, 217 Invalid, 1155 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [175 Valid, 980 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-10-13 07:27:36,585 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 181 states. [2024-10-13 07:27:36,598 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 181 to 168. [2024-10-13 07:27:36,599 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 168 states, 103 states have (on average 1.1844660194174756) internal successors, (122), 104 states have internal predecessors, (122), 47 states have call successors, (47), 17 states have call predecessors, (47), 17 states have return successors, (46), 46 states have call predecessors, (46), 46 states have call successors, (46) [2024-10-13 07:27:36,600 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 168 states to 168 states and 215 transitions. [2024-10-13 07:27:36,601 INFO L78 Accepts]: Start accepts. Automaton has 168 states and 215 transitions. Word has length 203 [2024-10-13 07:27:36,601 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 07:27:36,601 INFO L471 AbstractCegarLoop]: Abstraction has 168 states and 215 transitions. [2024-10-13 07:27:36,601 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 6.4) internal successors, (64), 6 states have internal predecessors, (64), 2 states have call successors, (27), 6 states have call predecessors, (27), 2 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) [2024-10-13 07:27:36,601 INFO L276 IsEmpty]: Start isEmpty. Operand 168 states and 215 transitions. [2024-10-13 07:27:36,603 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 204 [2024-10-13 07:27:36,603 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 07:27:36,603 INFO L215 NwaCegarLoop]: trace histogram [7, 7, 7, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 07:27:36,604 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-10-13 07:27:36,604 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-13 07:27:36,604 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 07:27:36,604 INFO L85 PathProgramCache]: Analyzing trace with hash -226216836, now seen corresponding path program 1 times [2024-10-13 07:27:36,604 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 07:27:36,604 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1477533112] [2024-10-13 07:27:36,604 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 07:27:36,605 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 07:27:36,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:36,852 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-13 07:27:36,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:36,857 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-10-13 07:27:36,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:36,861 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-10-13 07:27:36,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:36,864 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-13 07:27:36,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:36,867 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-10-13 07:27:36,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:36,870 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-10-13 07:27:36,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:36,874 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-10-13 07:27:36,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:36,879 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-10-13 07:27:36,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:36,883 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-10-13 07:27:36,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:36,902 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-10-13 07:27:36,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:36,910 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-10-13 07:27:36,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:36,915 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-10-13 07:27:36,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:36,919 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2024-10-13 07:27:36,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:36,927 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-10-13 07:27:36,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:36,933 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-10-13 07:27:36,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:36,947 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-10-13 07:27:36,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:37,049 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-13 07:27:37,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:37,061 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-13 07:27:37,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:37,080 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-13 07:27:37,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:37,085 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-10-13 07:27:37,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:37,098 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-13 07:27:37,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:37,107 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-13 07:27:37,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:37,112 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2024-10-13 07:27:37,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:37,116 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2024-10-13 07:27:37,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:37,132 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2024-10-13 07:27:37,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:37,138 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2024-10-13 07:27:37,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:37,142 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2024-10-13 07:27:37,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:37,147 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2024-10-13 07:27:37,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:37,161 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-13 07:27:37,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:37,170 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-13 07:27:37,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:37,175 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2024-10-13 07:27:37,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:37,181 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 181 [2024-10-13 07:27:37,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:37,196 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-13 07:27:37,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:37,203 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-13 07:27:37,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:37,208 INFO L134 CoverageAnalysis]: Checked inductivity of 233 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 233 trivial. 0 not checked. [2024-10-13 07:27:37,208 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 07:27:37,208 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1477533112] [2024-10-13 07:27:37,209 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1477533112] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 07:27:37,209 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 07:27:37,209 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-10-13 07:27:37,209 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2108359617] [2024-10-13 07:27:37,209 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 07:27:37,209 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-10-13 07:27:37,210 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 07:27:37,211 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-10-13 07:27:37,211 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2024-10-13 07:27:37,211 INFO L87 Difference]: Start difference. First operand 168 states and 215 transitions. Second operand has 8 states, 8 states have (on average 8.0) internal successors, (64), 4 states have internal predecessors, (64), 2 states have call successors, (27), 6 states have call predecessors, (27), 2 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) [2024-10-13 07:27:38,052 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 07:27:38,052 INFO L93 Difference]: Finished difference Result 294 states and 377 transitions. [2024-10-13 07:27:38,053 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-13 07:27:38,053 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 8.0) internal successors, (64), 4 states have internal predecessors, (64), 2 states have call successors, (27), 6 states have call predecessors, (27), 2 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) Word has length 203 [2024-10-13 07:27:38,053 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 07:27:38,055 INFO L225 Difference]: With dead ends: 294 [2024-10-13 07:27:38,055 INFO L226 Difference]: Without dead ends: 175 [2024-10-13 07:27:38,055 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 81 GetRequests, 69 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=47, Invalid=135, Unknown=0, NotChecked=0, Total=182 [2024-10-13 07:27:38,056 INFO L432 NwaCegarLoop]: 67 mSDtfsCounter, 277 mSDsluCounter, 114 mSDsCounter, 0 mSdLazyCounter, 607 mSolverCounterSat, 220 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 283 SdHoareTripleChecker+Valid, 181 SdHoareTripleChecker+Invalid, 827 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 220 IncrementalHoareTripleChecker+Valid, 607 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-10-13 07:27:38,056 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [283 Valid, 181 Invalid, 827 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [220 Valid, 607 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-10-13 07:27:38,057 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 175 states. [2024-10-13 07:27:38,069 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 175 to 170. [2024-10-13 07:27:38,070 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 170 states, 105 states have (on average 1.180952380952381) internal successors, (124), 106 states have internal predecessors, (124), 47 states have call successors, (47), 17 states have call predecessors, (47), 17 states have return successors, (46), 46 states have call predecessors, (46), 46 states have call successors, (46) [2024-10-13 07:27:38,071 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 170 states to 170 states and 217 transitions. [2024-10-13 07:27:38,072 INFO L78 Accepts]: Start accepts. Automaton has 170 states and 217 transitions. Word has length 203 [2024-10-13 07:27:38,072 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 07:27:38,072 INFO L471 AbstractCegarLoop]: Abstraction has 170 states and 217 transitions. [2024-10-13 07:27:38,072 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 8.0) internal successors, (64), 4 states have internal predecessors, (64), 2 states have call successors, (27), 6 states have call predecessors, (27), 2 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) [2024-10-13 07:27:38,073 INFO L276 IsEmpty]: Start isEmpty. Operand 170 states and 217 transitions. [2024-10-13 07:27:38,074 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 204 [2024-10-13 07:27:38,075 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 07:27:38,075 INFO L215 NwaCegarLoop]: trace histogram [7, 7, 7, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 07:27:38,075 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-10-13 07:27:38,075 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-13 07:27:38,075 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 07:27:38,075 INFO L85 PathProgramCache]: Analyzing trace with hash 1098639358, now seen corresponding path program 1 times [2024-10-13 07:27:38,076 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 07:27:38,076 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [627573721] [2024-10-13 07:27:38,076 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 07:27:38,076 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 07:27:38,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:40,402 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-13 07:27:40,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:40,406 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-10-13 07:27:40,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:40,409 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-10-13 07:27:40,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:40,412 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-13 07:27:40,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:40,416 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-10-13 07:27:40,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:40,420 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-10-13 07:27:40,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:40,423 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-10-13 07:27:40,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:40,429 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-10-13 07:27:40,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:40,435 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-10-13 07:27:40,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:40,454 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-10-13 07:27:40,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:40,464 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-10-13 07:27:40,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:40,468 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-10-13 07:27:40,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:40,473 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2024-10-13 07:27:40,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:40,484 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-10-13 07:27:40,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:40,487 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-10-13 07:27:40,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:40,501 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-10-13 07:27:40,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:40,954 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-13 07:27:40,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:40,968 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-13 07:27:40,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:40,986 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-13 07:27:40,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:40,991 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-10-13 07:27:41,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:41,191 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-13 07:27:41,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:41,202 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-13 07:27:41,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:41,207 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2024-10-13 07:27:41,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:41,211 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2024-10-13 07:27:41,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:41,244 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2024-10-13 07:27:41,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:41,249 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2024-10-13 07:27:41,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:41,253 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2024-10-13 07:27:41,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:41,257 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2024-10-13 07:27:41,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:41,270 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-13 07:27:41,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:41,277 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-13 07:27:41,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:41,281 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2024-10-13 07:27:41,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:41,285 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 181 [2024-10-13 07:27:41,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:41,298 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-13 07:27:41,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:41,305 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-13 07:27:41,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:41,310 INFO L134 CoverageAnalysis]: Checked inductivity of 233 backedges. 9 proven. 18 refuted. 0 times theorem prover too weak. 206 trivial. 0 not checked. [2024-10-13 07:27:41,311 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 07:27:41,311 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [627573721] [2024-10-13 07:27:41,311 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [627573721] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-13 07:27:41,311 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [355580979] [2024-10-13 07:27:41,311 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 07:27:41,311 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-13 07:27:41,311 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-13 07:27:41,313 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) [2024-10-13 07:27:41,314 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-10-13 07:27:41,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:41,841 INFO L255 TraceCheckSpWp]: Trace formula consists of 2967 conjuncts, 30 conjuncts are in the unsatisfiable core [2024-10-13 07:27:41,847 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-13 07:27:41,888 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2024-10-13 07:27:42,139 INFO L134 CoverageAnalysis]: Checked inductivity of 233 backedges. 125 proven. 0 refuted. 0 times theorem prover too weak. 108 trivial. 0 not checked. [2024-10-13 07:27:42,140 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-13 07:27:42,140 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [355580979] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 07:27:42,140 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-13 07:27:42,140 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [16] total 24 [2024-10-13 07:27:42,140 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2088581013] [2024-10-13 07:27:42,141 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 07:27:42,141 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-10-13 07:27:42,141 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 07:27:42,142 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-10-13 07:27:42,142 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=499, Unknown=0, NotChecked=0, Total=552 [2024-10-13 07:27:42,142 INFO L87 Difference]: Start difference. First operand 170 states and 217 transitions. Second operand has 11 states, 11 states have (on average 7.909090909090909) internal successors, (87), 11 states have internal predecessors, (87), 6 states have call successors, (30), 2 states have call predecessors, (30), 3 states have return successors, (29), 6 states have call predecessors, (29), 6 states have call successors, (29) [2024-10-13 07:27:43,405 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 07:27:43,405 INFO L93 Difference]: Finished difference Result 314 states and 405 transitions. [2024-10-13 07:27:43,405 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-10-13 07:27:43,406 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 7.909090909090909) internal successors, (87), 11 states have internal predecessors, (87), 6 states have call successors, (30), 2 states have call predecessors, (30), 3 states have return successors, (29), 6 states have call predecessors, (29), 6 states have call successors, (29) Word has length 203 [2024-10-13 07:27:43,406 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 07:27:43,407 INFO L225 Difference]: With dead ends: 314 [2024-10-13 07:27:43,407 INFO L226 Difference]: Without dead ends: 193 [2024-10-13 07:27:43,408 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 287 GetRequests, 261 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 50 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=72, Invalid=684, Unknown=0, NotChecked=0, Total=756 [2024-10-13 07:27:43,408 INFO L432 NwaCegarLoop]: 179 mSDtfsCounter, 53 mSDsluCounter, 1417 mSDsCounter, 0 mSdLazyCounter, 500 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 56 SdHoareTripleChecker+Valid, 1596 SdHoareTripleChecker+Invalid, 501 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 500 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-10-13 07:27:43,409 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [56 Valid, 1596 Invalid, 501 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 500 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-10-13 07:27:43,411 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 193 states. [2024-10-13 07:27:43,426 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 193 to 181. [2024-10-13 07:27:43,427 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 181 states, 115 states have (on average 1.191304347826087) internal successors, (137), 116 states have internal predecessors, (137), 47 states have call successors, (47), 17 states have call predecessors, (47), 18 states have return successors, (50), 47 states have call predecessors, (50), 46 states have call successors, (50) [2024-10-13 07:27:43,428 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 181 states to 181 states and 234 transitions. [2024-10-13 07:27:43,428 INFO L78 Accepts]: Start accepts. Automaton has 181 states and 234 transitions. Word has length 203 [2024-10-13 07:27:43,429 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 07:27:43,429 INFO L471 AbstractCegarLoop]: Abstraction has 181 states and 234 transitions. [2024-10-13 07:27:43,429 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 7.909090909090909) internal successors, (87), 11 states have internal predecessors, (87), 6 states have call successors, (30), 2 states have call predecessors, (30), 3 states have return successors, (29), 6 states have call predecessors, (29), 6 states have call successors, (29) [2024-10-13 07:27:43,431 INFO L276 IsEmpty]: Start isEmpty. Operand 181 states and 234 transitions. [2024-10-13 07:27:43,432 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 204 [2024-10-13 07:27:43,432 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 07:27:43,432 INFO L215 NwaCegarLoop]: trace histogram [7, 7, 7, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 07:27:43,455 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2024-10-13 07:27:43,633 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-13 07:27:43,633 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-13 07:27:43,634 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 07:27:43,634 INFO L85 PathProgramCache]: Analyzing trace with hash 1605991420, now seen corresponding path program 1 times [2024-10-13 07:27:43,634 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 07:27:43,634 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [252510198] [2024-10-13 07:27:43,634 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 07:27:43,634 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 07:27:44,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:44,500 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-13 07:27:44,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:44,503 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-10-13 07:27:44,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:44,506 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-10-13 07:27:44,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:44,508 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-13 07:27:44,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:44,511 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-10-13 07:27:44,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:44,513 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-10-13 07:27:44,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:44,515 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-10-13 07:27:44,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:44,519 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-10-13 07:27:44,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:44,523 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-10-13 07:27:44,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:44,540 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-10-13 07:27:44,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:44,547 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-10-13 07:27:44,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:44,549 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-10-13 07:27:44,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:44,552 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2024-10-13 07:27:44,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:44,558 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-10-13 07:27:44,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:44,561 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-10-13 07:27:44,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:44,574 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-10-13 07:27:44,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:44,726 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-13 07:27:44,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:44,762 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-13 07:27:44,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:44,775 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-13 07:27:44,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:44,779 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-10-13 07:27:44,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:44,790 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-13 07:27:44,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:44,797 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-13 07:27:44,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:44,801 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2024-10-13 07:27:44,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:44,804 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2024-10-13 07:27:44,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:44,818 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2024-10-13 07:27:44,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:44,823 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2024-10-13 07:27:44,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:44,826 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2024-10-13 07:27:44,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:44,829 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2024-10-13 07:27:44,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:44,842 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-13 07:27:44,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:44,849 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-13 07:27:44,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:44,853 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2024-10-13 07:27:44,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:44,856 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 181 [2024-10-13 07:27:44,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:44,869 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-13 07:27:44,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:44,875 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-13 07:27:44,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:44,879 INFO L134 CoverageAnalysis]: Checked inductivity of 233 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 233 trivial. 0 not checked. [2024-10-13 07:27:44,880 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 07:27:44,880 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [252510198] [2024-10-13 07:27:44,880 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [252510198] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 07:27:44,880 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 07:27:44,880 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-10-13 07:27:44,880 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1088690664] [2024-10-13 07:27:44,880 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 07:27:44,881 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-10-13 07:27:44,881 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 07:27:44,881 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-10-13 07:27:44,881 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2024-10-13 07:27:44,881 INFO L87 Difference]: Start difference. First operand 181 states and 234 transitions. Second operand has 9 states, 9 states have (on average 7.111111111111111) internal successors, (64), 5 states have internal predecessors, (64), 2 states have call successors, (27), 6 states have call predecessors, (27), 2 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) [2024-10-13 07:27:46,002 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 07:27:46,002 INFO L93 Difference]: Finished difference Result 321 states and 416 transitions. [2024-10-13 07:27:46,002 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-10-13 07:27:46,003 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 7.111111111111111) internal successors, (64), 5 states have internal predecessors, (64), 2 states have call successors, (27), 6 states have call predecessors, (27), 2 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) Word has length 203 [2024-10-13 07:27:46,003 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 07:27:46,004 INFO L225 Difference]: With dead ends: 321 [2024-10-13 07:27:46,004 INFO L226 Difference]: Without dead ends: 189 [2024-10-13 07:27:46,005 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 83 GetRequests, 69 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=53, Invalid=187, Unknown=0, NotChecked=0, Total=240 [2024-10-13 07:27:46,005 INFO L432 NwaCegarLoop]: 67 mSDtfsCounter, 224 mSDsluCounter, 174 mSDsCounter, 0 mSdLazyCounter, 956 mSolverCounterSat, 167 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 230 SdHoareTripleChecker+Valid, 241 SdHoareTripleChecker+Invalid, 1123 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 167 IncrementalHoareTripleChecker+Valid, 956 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-10-13 07:27:46,005 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [230 Valid, 241 Invalid, 1123 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [167 Valid, 956 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-10-13 07:27:46,006 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 189 states. [2024-10-13 07:27:46,018 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 189 to 185. [2024-10-13 07:27:46,018 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 185 states, 119 states have (on average 1.184873949579832) internal successors, (141), 120 states have internal predecessors, (141), 47 states have call successors, (47), 17 states have call predecessors, (47), 18 states have return successors, (50), 47 states have call predecessors, (50), 46 states have call successors, (50) [2024-10-13 07:27:46,019 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 185 states to 185 states and 238 transitions. [2024-10-13 07:27:46,019 INFO L78 Accepts]: Start accepts. Automaton has 185 states and 238 transitions. Word has length 203 [2024-10-13 07:27:46,020 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 07:27:46,020 INFO L471 AbstractCegarLoop]: Abstraction has 185 states and 238 transitions. [2024-10-13 07:27:46,020 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 7.111111111111111) internal successors, (64), 5 states have internal predecessors, (64), 2 states have call successors, (27), 6 states have call predecessors, (27), 2 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) [2024-10-13 07:27:46,020 INFO L276 IsEmpty]: Start isEmpty. Operand 185 states and 238 transitions. [2024-10-13 07:27:46,023 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 204 [2024-10-13 07:27:46,024 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 07:27:46,024 INFO L215 NwaCegarLoop]: trace histogram [7, 7, 7, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 07:27:46,024 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-10-13 07:27:46,024 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-13 07:27:46,024 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 07:27:46,024 INFO L85 PathProgramCache]: Analyzing trace with hash 41908156, now seen corresponding path program 1 times [2024-10-13 07:27:46,025 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 07:27:46,025 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1290884408] [2024-10-13 07:27:46,025 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 07:27:46,025 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 07:27:46,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:46,262 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-13 07:27:46,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:46,266 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-10-13 07:27:46,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:46,268 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-10-13 07:27:46,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:46,271 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-13 07:27:46,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:46,274 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-10-13 07:27:46,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:46,276 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-10-13 07:27:46,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:46,279 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-10-13 07:27:46,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:46,283 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-10-13 07:27:46,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:46,287 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-10-13 07:27:46,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:46,308 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-10-13 07:27:46,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:46,315 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-10-13 07:27:46,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:46,319 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-10-13 07:27:46,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:46,321 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2024-10-13 07:27:46,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:46,328 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-10-13 07:27:46,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:46,331 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-10-13 07:27:46,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:46,344 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-10-13 07:27:46,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:46,404 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-13 07:27:46,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:46,416 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-13 07:27:46,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:46,428 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-13 07:27:46,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:46,433 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-10-13 07:27:46,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:46,464 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-13 07:27:46,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:46,472 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-13 07:27:46,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:46,476 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2024-10-13 07:27:46,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:46,480 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2024-10-13 07:27:46,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:46,493 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2024-10-13 07:27:46,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:46,497 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2024-10-13 07:27:46,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:46,502 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2024-10-13 07:27:46,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:46,506 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2024-10-13 07:27:46,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:46,520 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-13 07:27:46,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:46,527 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-13 07:27:46,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:46,531 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2024-10-13 07:27:46,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:46,535 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 181 [2024-10-13 07:27:46,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:46,549 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-13 07:27:46,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:46,556 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-13 07:27:46,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:46,561 INFO L134 CoverageAnalysis]: Checked inductivity of 233 backedges. 5 proven. 10 refuted. 0 times theorem prover too weak. 218 trivial. 0 not checked. [2024-10-13 07:27:46,561 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 07:27:46,561 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1290884408] [2024-10-13 07:27:46,561 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1290884408] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-13 07:27:46,562 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2104122192] [2024-10-13 07:27:46,562 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 07:27:46,562 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-13 07:27:46,562 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-13 07:27:46,563 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-13 07:27:46,565 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-10-13 07:27:47,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:47,097 INFO L255 TraceCheckSpWp]: Trace formula consists of 2962 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-10-13 07:27:47,101 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-13 07:27:47,110 INFO L134 CoverageAnalysis]: Checked inductivity of 233 backedges. 115 proven. 0 refuted. 0 times theorem prover too weak. 118 trivial. 0 not checked. [2024-10-13 07:27:47,110 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-13 07:27:47,110 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2104122192] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 07:27:47,110 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-13 07:27:47,110 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [8] total 8 [2024-10-13 07:27:47,110 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [336188485] [2024-10-13 07:27:47,110 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 07:27:47,111 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-13 07:27:47,111 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 07:27:47,112 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-13 07:27:47,113 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2024-10-13 07:27:47,113 INFO L87 Difference]: Start difference. First operand 185 states and 238 transitions. Second operand has 4 states, 4 states have (on average 20.5) internal successors, (82), 4 states have internal predecessors, (82), 2 states have call successors, (29), 2 states have call predecessors, (29), 2 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) [2024-10-13 07:27:47,286 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 07:27:47,286 INFO L93 Difference]: Finished difference Result 321 states and 417 transitions. [2024-10-13 07:27:47,287 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-13 07:27:47,287 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 20.5) internal successors, (82), 4 states have internal predecessors, (82), 2 states have call successors, (29), 2 states have call predecessors, (29), 2 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) Word has length 203 [2024-10-13 07:27:47,288 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 07:27:47,289 INFO L225 Difference]: With dead ends: 321 [2024-10-13 07:27:47,289 INFO L226 Difference]: Without dead ends: 185 [2024-10-13 07:27:47,289 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 276 GetRequests, 270 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2024-10-13 07:27:47,290 INFO L432 NwaCegarLoop]: 200 mSDtfsCounter, 0 mSDsluCounter, 390 mSDsCounter, 0 mSdLazyCounter, 53 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 590 SdHoareTripleChecker+Invalid, 53 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 53 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-13 07:27:47,290 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 590 Invalid, 53 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 53 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-13 07:27:47,291 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 185 states. [2024-10-13 07:27:47,304 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 185 to 185. [2024-10-13 07:27:47,305 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 185 states, 119 states have (on average 1.1764705882352942) internal successors, (140), 120 states have internal predecessors, (140), 47 states have call successors, (47), 17 states have call predecessors, (47), 18 states have return successors, (50), 47 states have call predecessors, (50), 46 states have call successors, (50) [2024-10-13 07:27:47,307 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 185 states to 185 states and 237 transitions. [2024-10-13 07:27:47,307 INFO L78 Accepts]: Start accepts. Automaton has 185 states and 237 transitions. Word has length 203 [2024-10-13 07:27:47,307 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 07:27:47,307 INFO L471 AbstractCegarLoop]: Abstraction has 185 states and 237 transitions. [2024-10-13 07:27:47,308 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 20.5) internal successors, (82), 4 states have internal predecessors, (82), 2 states have call successors, (29), 2 states have call predecessors, (29), 2 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) [2024-10-13 07:27:47,308 INFO L276 IsEmpty]: Start isEmpty. Operand 185 states and 237 transitions. [2024-10-13 07:27:47,310 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 206 [2024-10-13 07:27:47,310 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 07:27:47,310 INFO L215 NwaCegarLoop]: trace histogram [7, 7, 7, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 07:27:47,328 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-10-13 07:27:47,510 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2024-10-13 07:27:47,511 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-13 07:27:47,511 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 07:27:47,512 INFO L85 PathProgramCache]: Analyzing trace with hash 1763316950, now seen corresponding path program 1 times [2024-10-13 07:27:47,512 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 07:27:47,512 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1329243929] [2024-10-13 07:27:47,512 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 07:27:47,512 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 07:27:47,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:48,272 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-13 07:27:48,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:48,275 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-10-13 07:27:48,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:48,278 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-10-13 07:27:48,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:48,281 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-13 07:27:48,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:48,283 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-10-13 07:27:48,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:48,286 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-10-13 07:27:48,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:48,288 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-10-13 07:27:48,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:48,292 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-10-13 07:27:48,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:48,297 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-10-13 07:27:48,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:48,315 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-10-13 07:27:48,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:48,322 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-10-13 07:27:48,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:48,326 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-10-13 07:27:48,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:48,329 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2024-10-13 07:27:48,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:48,336 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-10-13 07:27:48,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:48,340 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-10-13 07:27:48,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:48,355 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-10-13 07:27:48,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:48,517 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-13 07:27:48,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:48,530 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-13 07:27:48,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:48,543 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-13 07:27:48,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:48,547 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-10-13 07:27:48,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:48,638 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-13 07:27:48,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:48,647 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-13 07:27:48,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:48,651 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2024-10-13 07:27:48,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:48,654 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2024-10-13 07:27:48,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:48,669 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2024-10-13 07:27:48,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:48,674 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2024-10-13 07:27:48,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:48,679 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2024-10-13 07:27:48,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:48,684 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2024-10-13 07:27:48,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:48,697 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-13 07:27:48,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:48,705 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-13 07:27:48,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:48,709 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 177 [2024-10-13 07:27:48,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:48,712 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2024-10-13 07:27:48,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:48,731 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-13 07:27:48,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:48,738 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-13 07:27:48,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:48,744 INFO L134 CoverageAnalysis]: Checked inductivity of 233 backedges. 6 proven. 12 refuted. 0 times theorem prover too weak. 215 trivial. 0 not checked. [2024-10-13 07:27:48,744 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 07:27:48,744 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1329243929] [2024-10-13 07:27:48,744 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1329243929] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-13 07:27:48,745 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1863621748] [2024-10-13 07:27:48,745 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 07:27:48,745 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-13 07:27:48,745 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-13 07:27:48,746 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-13 07:27:48,749 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-10-13 07:27:49,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:49,286 INFO L255 TraceCheckSpWp]: Trace formula consists of 2967 conjuncts, 30 conjuncts are in the unsatisfiable core [2024-10-13 07:27:49,293 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-13 07:27:49,308 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2024-10-13 07:27:49,507 INFO L134 CoverageAnalysis]: Checked inductivity of 233 backedges. 125 proven. 0 refuted. 0 times theorem prover too weak. 108 trivial. 0 not checked. [2024-10-13 07:27:49,508 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-13 07:27:49,508 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1863621748] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 07:27:49,508 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-13 07:27:49,508 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [9] total 18 [2024-10-13 07:27:49,508 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1724893048] [2024-10-13 07:27:49,509 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 07:27:49,509 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-10-13 07:27:49,509 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 07:27:49,510 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-10-13 07:27:49,510 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2024-10-13 07:27:49,510 INFO L87 Difference]: Start difference. First operand 185 states and 237 transitions. Second operand has 11 states, 11 states have (on average 8.090909090909092) internal successors, (89), 11 states have internal predecessors, (89), 6 states have call successors, (30), 2 states have call predecessors, (30), 3 states have return successors, (29), 6 states have call predecessors, (29), 6 states have call successors, (29) [2024-10-13 07:27:50,603 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 07:27:50,603 INFO L93 Difference]: Finished difference Result 349 states and 451 transitions. [2024-10-13 07:27:50,604 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-10-13 07:27:50,604 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 8.090909090909092) internal successors, (89), 11 states have internal predecessors, (89), 6 states have call successors, (30), 2 states have call predecessors, (30), 3 states have return successors, (29), 6 states have call predecessors, (29), 6 states have call successors, (29) Word has length 205 [2024-10-13 07:27:50,605 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 07:27:50,606 INFO L225 Difference]: With dead ends: 349 [2024-10-13 07:27:50,606 INFO L226 Difference]: Without dead ends: 213 [2024-10-13 07:27:50,607 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 284 GetRequests, 263 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 43 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=62, Invalid=444, Unknown=0, NotChecked=0, Total=506 [2024-10-13 07:27:50,608 INFO L432 NwaCegarLoop]: 197 mSDtfsCounter, 40 mSDsluCounter, 1393 mSDsCounter, 0 mSdLazyCounter, 498 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 43 SdHoareTripleChecker+Valid, 1590 SdHoareTripleChecker+Invalid, 499 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 498 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-10-13 07:27:50,608 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [43 Valid, 1590 Invalid, 499 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 498 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-10-13 07:27:50,608 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 213 states. [2024-10-13 07:27:50,621 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 213 to 185. [2024-10-13 07:27:50,622 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 185 states, 119 states have (on average 1.1764705882352942) internal successors, (140), 120 states have internal predecessors, (140), 47 states have call successors, (47), 17 states have call predecessors, (47), 18 states have return successors, (50), 47 states have call predecessors, (50), 46 states have call successors, (50) [2024-10-13 07:27:50,623 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 185 states to 185 states and 237 transitions. [2024-10-13 07:27:50,624 INFO L78 Accepts]: Start accepts. Automaton has 185 states and 237 transitions. Word has length 205 [2024-10-13 07:27:50,624 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 07:27:50,624 INFO L471 AbstractCegarLoop]: Abstraction has 185 states and 237 transitions. [2024-10-13 07:27:50,625 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 8.090909090909092) internal successors, (89), 11 states have internal predecessors, (89), 6 states have call successors, (30), 2 states have call predecessors, (30), 3 states have return successors, (29), 6 states have call predecessors, (29), 6 states have call successors, (29) [2024-10-13 07:27:50,625 INFO L276 IsEmpty]: Start isEmpty. Operand 185 states and 237 transitions. [2024-10-13 07:27:50,626 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 206 [2024-10-13 07:27:50,626 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 07:27:50,626 INFO L215 NwaCegarLoop]: trace histogram [7, 7, 7, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 07:27:50,645 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-10-13 07:27:50,827 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-13 07:27:50,827 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-13 07:27:50,828 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 07:27:50,828 INFO L85 PathProgramCache]: Analyzing trace with hash -1180265128, now seen corresponding path program 1 times [2024-10-13 07:27:50,828 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 07:27:50,828 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [33868044] [2024-10-13 07:27:50,828 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 07:27:50,828 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 07:27:51,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:54,662 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-13 07:27:54,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:54,666 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-10-13 07:27:54,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:54,669 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-10-13 07:27:54,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:54,673 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-13 07:27:54,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:54,676 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-10-13 07:27:54,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:54,679 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-10-13 07:27:54,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:54,682 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-10-13 07:27:54,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:54,689 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-10-13 07:27:54,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:54,698 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-10-13 07:27:54,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:54,719 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-10-13 07:27:54,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:54,809 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-10-13 07:27:54,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:54,818 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-10-13 07:27:54,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:54,825 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2024-10-13 07:27:54,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:54,914 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-10-13 07:27:54,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:54,923 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-10-13 07:27:54,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:54,942 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-10-13 07:27:54,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:55,517 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-13 07:27:55,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:55,543 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-13 07:27:55,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:55,559 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-13 07:27:55,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:55,563 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-10-13 07:27:55,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:55,850 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-13 07:27:55,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:55,864 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-13 07:27:55,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:55,869 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2024-10-13 07:27:55,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:55,873 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2024-10-13 07:27:55,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:55,898 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2024-10-13 07:27:55,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:55,903 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2024-10-13 07:27:55,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:55,906 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2024-10-13 07:27:55,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:55,910 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2024-10-13 07:27:55,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:55,923 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-13 07:27:55,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:55,930 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-13 07:27:55,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:55,934 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 177 [2024-10-13 07:27:55,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:55,937 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2024-10-13 07:27:55,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:55,951 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-13 07:27:55,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:55,958 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-13 07:27:55,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:55,962 INFO L134 CoverageAnalysis]: Checked inductivity of 233 backedges. 9 proven. 24 refuted. 0 times theorem prover too weak. 200 trivial. 0 not checked. [2024-10-13 07:27:55,962 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 07:27:55,962 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [33868044] [2024-10-13 07:27:55,963 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [33868044] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-13 07:27:55,963 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1895764806] [2024-10-13 07:27:55,963 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 07:27:55,963 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-13 07:27:55,963 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-13 07:27:55,964 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-13 07:27:55,966 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-10-13 07:27:57,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:57,348 INFO L255 TraceCheckSpWp]: Trace formula consists of 2972 conjuncts, 185 conjuncts are in the unsatisfiable core [2024-10-13 07:27:57,361 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-13 07:27:58,261 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2024-10-13 07:27:58,482 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 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 67 treesize of output 55 [2024-10-13 07:28:00,749 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2024-10-13 07:28:01,173 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 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 67 treesize of output 55 [2024-10-13 07:28:09,930 WARN L286 SmtUtils]: Spent 8.00s on a formula simplification that was a NOOP. DAG size: 3 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-10-13 07:28:17,098 WARN L286 SmtUtils]: Spent 5.12s on a formula simplification that was a NOOP. DAG size: 55 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-10-13 07:28:17,250 INFO L134 CoverageAnalysis]: Checked inductivity of 233 backedges. 146 proven. 3 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2024-10-13 07:28:17,250 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-13 07:28:25,612 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 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 54 treesize of output 50 [2024-10-13 07:28:26,400 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1895764806] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-13 07:28:26,401 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-10-13 07:28:26,401 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [21, 42] total 60 [2024-10-13 07:28:26,401 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [49671360] [2024-10-13 07:28:26,401 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-10-13 07:28:26,402 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 60 states [2024-10-13 07:28:26,402 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 07:28:26,402 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 60 interpolants. [2024-10-13 07:28:26,404 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=249, Invalid=4863, Unknown=0, NotChecked=0, Total=5112 [2024-10-13 07:28:26,404 INFO L87 Difference]: Start difference. First operand 185 states and 237 transitions. Second operand has 60 states, 52 states have (on average 3.1538461538461537) internal successors, (164), 48 states have internal predecessors, (164), 20 states have call successors, (55), 9 states have call predecessors, (55), 14 states have return successors, (52), 21 states have call predecessors, (52), 19 states have call successors, (52) [2024-10-13 07:28:31,748 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0]