./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_array_list_back_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_array_list_back_harness.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --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 2279e66d659d6de4a6f1e9cba0e3ed135a3304882c70e550497f0feeaae371b4 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.dk.eval-mul-div-a046e57-m [2024-10-13 07:18:49,131 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-13 07:18:49,197 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2024-10-13 07:18:49,206 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-13 07:18:49,207 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-13 07:18:49,234 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-13 07:18:49,234 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-13 07:18:49,235 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-13 07:18:49,235 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-13 07:18:49,236 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-13 07:18:49,236 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-13 07:18:49,237 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-13 07:18:49,237 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-13 07:18:49,238 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-13 07:18:49,238 INFO L153 SettingsManager]: * Use SBE=true [2024-10-13 07:18:49,238 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-13 07:18:49,239 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-13 07:18:49,239 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-13 07:18:49,239 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-13 07:18:49,240 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-13 07:18:49,240 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-13 07:18:49,241 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-13 07:18:49,241 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-13 07:18:49,241 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-13 07:18:49,242 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-13 07:18:49,242 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-13 07:18:49,242 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-13 07:18:49,242 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-13 07:18:49,243 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-13 07:18:49,243 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-13 07:18:49,243 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-13 07:18:49,244 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-13 07:18:49,246 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-13 07:18:49,247 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-13 07:18:49,247 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-13 07:18:49,247 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-13 07:18:49,248 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-13 07:18:49,248 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-13 07:18:49,248 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-13 07:18:49,258 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2279e66d659d6de4a6f1e9cba0e3ed135a3304882c70e550497f0feeaae371b4 [2024-10-13 07:18:49,525 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-13 07:18:49,552 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-13 07:18:49,554 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-13 07:18:49,556 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-13 07:18:49,556 INFO L274 PluginConnector]: CDTParser initialized [2024-10-13 07:18:49,558 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_array_list_back_harness.i [2024-10-13 07:18:50,970 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-13 07:18:51,377 INFO L384 CDTParser]: Found 1 translation units. [2024-10-13 07:18:51,379 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_array_list_back_harness.i [2024-10-13 07:18:51,422 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fef98fda5/c5be87b09fd54147a9842f1e3ea9d84d/FLAG075deb8c9 [2024-10-13 07:18:51,439 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fef98fda5/c5be87b09fd54147a9842f1e3ea9d84d [2024-10-13 07:18:51,442 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-13 07:18:51,444 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-13 07:18:51,447 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-13 07:18:51,447 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-13 07:18:51,453 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-13 07:18:51,453 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 07:18:51" (1/1) ... [2024-10-13 07:18:51,454 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@479bfd61 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:18:51, skipping insertion in model container [2024-10-13 07:18:51,454 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 07:18:51" (1/1) ... [2024-10-13 07:18:51,551 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-13 07:18:51,843 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_array_list_back_harness.i[4493,4506] [2024-10-13 07:18:51,851 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_array_list_back_harness.i[4553,4566] [2024-10-13 07:18:52,736 WARN L1659 CHandler]: Possible shadowing of function index [2024-10-13 07:18:52,737 WARN L1659 CHandler]: Possible shadowing of function index [2024-10-13 07:18:52,737 WARN L1659 CHandler]: Possible shadowing of function index [2024-10-13 07:18:52,738 WARN L1659 CHandler]: Possible shadowing of function index [2024-10-13 07:18:52,739 WARN L1659 CHandler]: Possible shadowing of function index [2024-10-13 07:18:52,752 WARN L1659 CHandler]: Possible shadowing of function index [2024-10-13 07:18:52,753 WARN L1659 CHandler]: Possible shadowing of function index [2024-10-13 07:18:52,754 WARN L1659 CHandler]: Possible shadowing of function index [2024-10-13 07:18:52,755 WARN L1659 CHandler]: Possible shadowing of function index [2024-10-13 07:18:52,757 WARN L1659 CHandler]: Possible shadowing of function index [2024-10-13 07:18:52,757 WARN L1659 CHandler]: Possible shadowing of function index [2024-10-13 07:18:52,758 WARN L1659 CHandler]: Possible shadowing of function index [2024-10-13 07:18:52,759 WARN L1659 CHandler]: Possible shadowing of function index [2024-10-13 07:18:53,100 WARN L1659 CHandler]: Possible shadowing of function index [2024-10-13 07:18:53,107 WARN L1659 CHandler]: Possible shadowing of function index [2024-10-13 07:18:53,163 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-13 07:18:53,206 INFO L200 MainTranslator]: Completed pre-run [2024-10-13 07:18:53,221 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_array_list_back_harness.i[4493,4506] [2024-10-13 07:18:53,226 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_array_list_back_harness.i[4553,4566] [2024-10-13 07:18:53,297 WARN L1659 CHandler]: Possible shadowing of function index [2024-10-13 07:18:53,298 WARN L1659 CHandler]: Possible shadowing of function index [2024-10-13 07:18:53,298 WARN L1659 CHandler]: Possible shadowing of function index [2024-10-13 07:18:53,299 WARN L1659 CHandler]: Possible shadowing of function index [2024-10-13 07:18:53,299 WARN L1659 CHandler]: Possible shadowing of function index [2024-10-13 07:18:53,308 WARN L1659 CHandler]: Possible shadowing of function index [2024-10-13 07:18:53,310 WARN L1659 CHandler]: Possible shadowing of function index [2024-10-13 07:18:53,311 WARN L1659 CHandler]: Possible shadowing of function index [2024-10-13 07:18:53,313 WARN L1659 CHandler]: Possible shadowing of function index [2024-10-13 07:18:53,314 WARN L1659 CHandler]: Possible shadowing of function index [2024-10-13 07:18:53,315 WARN L1659 CHandler]: Possible shadowing of function index [2024-10-13 07:18:53,315 WARN L1659 CHandler]: Possible shadowing of function index [2024-10-13 07:18:53,315 WARN L1659 CHandler]: Possible shadowing of function index [2024-10-13 07:18:53,405 WARN L1659 CHandler]: Possible shadowing of function index [2024-10-13 07:18:53,409 WARN L1659 CHandler]: Possible shadowing of function index [2024-10-13 07:18:53,415 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" : : "r"(pBuf) : "memory"); [7769-7780] [2024-10-13 07:18:53,437 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-13 07:18:53,645 INFO L204 MainTranslator]: Completed translation [2024-10-13 07:18:53,646 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:18:53 WrapperNode [2024-10-13 07:18:53,646 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-13 07:18:53,647 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-13 07:18:53,647 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-13 07:18:53,647 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-13 07:18:53,677 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:18:53" (1/1) ... [2024-10-13 07:18:53,765 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:18:53" (1/1) ... [2024-10-13 07:18:53,830 INFO L138 Inliner]: procedures = 680, calls = 1672, calls flagged for inlining = 52, calls inlined = 8, statements flattened = 654 [2024-10-13 07:18:53,831 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-13 07:18:53,831 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-13 07:18:53,832 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-13 07:18:53,832 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-13 07:18:53,849 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:18:53" (1/1) ... [2024-10-13 07:18:53,849 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:18:53" (1/1) ... [2024-10-13 07:18:53,860 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:18:53" (1/1) ... [2024-10-13 07:18:53,940 INFO L175 MemorySlicer]: Split 311 memory accesses to 6 slices as follows [236, 2, 9, 3, 55, 6]. 76 percent of accesses are in the largest equivalence class. The 254 initializations are split as follows [236, 2, 5, 1, 10, 0]. The 7 writes are split as follows [0, 0, 1, 1, 3, 2]. [2024-10-13 07:18:53,941 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:18:53" (1/1) ... [2024-10-13 07:18:53,941 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:18:53" (1/1) ... [2024-10-13 07:18:53,965 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:18:53" (1/1) ... [2024-10-13 07:18:53,973 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:18:53" (1/1) ... [2024-10-13 07:18:53,987 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:18:53" (1/1) ... [2024-10-13 07:18:53,996 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:18:53" (1/1) ... [2024-10-13 07:18:54,015 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-13 07:18:54,016 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-13 07:18:54,016 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-13 07:18:54,016 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-13 07:18:54,017 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:18:53" (1/1) ... [2024-10-13 07:18:54,023 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-13 07:18:54,033 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-13 07:18:54,049 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 07:18:54,056 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 07:18:54,105 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-10-13 07:18:54,106 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_is_bounded [2024-10-13 07:18:54,106 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_is_bounded [2024-10-13 07:18:54,106 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_is_valid [2024-10-13 07:18:54,106 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_is_valid [2024-10-13 07:18:54,106 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_bool [2024-10-13 07:18:54,106 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_bool [2024-10-13 07:18:54,106 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-10-13 07:18:54,107 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-10-13 07:18:54,107 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-10-13 07:18:54,107 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-10-13 07:18:54,107 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2024-10-13 07:18:54,107 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2024-10-13 07:18:54,108 INFO L130 BoogieDeclarations]: Found specification of procedure aws_raise_error [2024-10-13 07:18:54,108 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_raise_error [2024-10-13 07:18:54,108 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-10-13 07:18:54,108 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-10-13 07:18:54,108 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-10-13 07:18:54,108 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-13 07:18:54,109 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2024-10-13 07:18:54,109 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2024-10-13 07:18:54,109 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2024-10-13 07:18:54,109 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2024-10-13 07:18:54,110 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#4 [2024-10-13 07:18:54,110 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#5 [2024-10-13 07:18:54,110 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy_impl [2024-10-13 07:18:54,111 INFO L138 BoogieDeclarations]: Found implementation of procedure memcpy_impl [2024-10-13 07:18:54,111 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-13 07:18:54,111 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-13 07:18:54,111 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2024-10-13 07:18:54,112 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2024-10-13 07:18:54,112 INFO L130 BoogieDeclarations]: Found specification of procedure assert_byte_from_buffer_matches [2024-10-13 07:18:54,112 INFO L138 BoogieDeclarations]: Found implementation of procedure assert_byte_from_buffer_matches [2024-10-13 07:18:54,112 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_size_t [2024-10-13 07:18:54,112 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_size_t [2024-10-13 07:18:54,112 INFO L130 BoogieDeclarations]: Found specification of procedure aws_mul_size_checked [2024-10-13 07:18:54,112 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_mul_size_checked [2024-10-13 07:18:54,112 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_malloc [2024-10-13 07:18:54,113 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_malloc [2024-10-13 07:18:54,113 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_length [2024-10-13 07:18:54,113 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_length [2024-10-13 07:18:54,113 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-10-13 07:18:54,114 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-10-13 07:18:54,114 INFO L130 BoogieDeclarations]: Found specification of procedure my_memcpy [2024-10-13 07:18:54,114 INFO L138 BoogieDeclarations]: Found implementation of procedure my_memcpy [2024-10-13 07:18:54,114 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-10-13 07:18:54,114 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2024-10-13 07:18:54,114 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2024-10-13 07:18:54,114 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2024-10-13 07:18:54,114 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2024-10-13 07:18:54,114 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#4 [2024-10-13 07:18:54,114 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#5 [2024-10-13 07:18:54,114 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#0 [2024-10-13 07:18:54,114 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#1 [2024-10-13 07:18:54,115 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#2 [2024-10-13 07:18:54,115 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#3 [2024-10-13 07:18:54,115 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#4 [2024-10-13 07:18:54,115 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#5 [2024-10-13 07:18:54,115 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_allocator [2024-10-13 07:18:54,115 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_allocator [2024-10-13 07:18:54,115 INFO L130 BoogieDeclarations]: Found specification of procedure __CPROVER_overflow_mult [2024-10-13 07:18:54,115 INFO L138 BoogieDeclarations]: Found implementation of procedure __CPROVER_overflow_mult [2024-10-13 07:18:54,115 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-10-13 07:18:54,115 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-10-13 07:18:54,115 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-10-13 07:18:54,115 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-10-13 07:18:54,115 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2024-10-13 07:18:54,115 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2024-10-13 07:18:54,116 INFO L130 BoogieDeclarations]: Found specification of procedure ensure_array_list_has_allocated_data_member [2024-10-13 07:18:54,116 INFO L138 BoogieDeclarations]: Found implementation of procedure ensure_array_list_has_allocated_data_member [2024-10-13 07:18:54,116 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-13 07:18:54,116 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-10-13 07:18:54,116 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-10-13 07:18:54,116 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-10-13 07:18:54,116 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2024-10-13 07:18:54,116 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2024-10-13 07:18:54,462 INFO L238 CfgBuilder]: Building ICFG [2024-10-13 07:18:54,465 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-13 07:18:55,295 INFO L? ?]: Removed 125 outVars from TransFormulas that were not future-live. [2024-10-13 07:18:55,295 INFO L287 CfgBuilder]: Performing block encoding [2024-10-13 07:18:55,393 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-13 07:18:55,393 INFO L314 CfgBuilder]: Removed 1 assume(true) statements. [2024-10-13 07:18:55,395 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 07:18:55 BoogieIcfgContainer [2024-10-13 07:18:55,395 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-13 07:18:55,397 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-13 07:18:55,398 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-13 07:18:55,401 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-13 07:18:55,401 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 07:18:51" (1/3) ... [2024-10-13 07:18:55,402 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@606b9c72 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 07:18:55, skipping insertion in model container [2024-10-13 07:18:55,402 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:18:53" (2/3) ... [2024-10-13 07:18:55,402 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@606b9c72 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 07:18:55, skipping insertion in model container [2024-10-13 07:18:55,403 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 07:18:55" (3/3) ... [2024-10-13 07:18:55,404 INFO L112 eAbstractionObserver]: Analyzing ICFG aws_array_list_back_harness.i [2024-10-13 07:18:55,421 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-13 07:18:55,421 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-10-13 07:18:55,525 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-13 07:18:55,532 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;@41994d49, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-13 07:18:55,532 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-10-13 07:18:55,538 INFO L276 IsEmpty]: Start isEmpty. Operand has 168 states, 94 states have (on average 1.2446808510638299) internal successors, (117), 95 states have internal predecessors, (117), 55 states have call successors, (55), 17 states have call predecessors, (55), 17 states have return successors, (55), 55 states have call predecessors, (55), 55 states have call successors, (55) [2024-10-13 07:18:55,555 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2024-10-13 07:18:55,555 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 07:18:55,557 INFO L215 NwaCegarLoop]: trace histogram [10, 10, 10, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:18:55,558 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-13 07:18:55,564 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 07:18:55,564 INFO L85 PathProgramCache]: Analyzing trace with hash -311807432, now seen corresponding path program 1 times [2024-10-13 07:18:55,574 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 07:18:55,575 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1260336042] [2024-10-13 07:18:55,575 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 07:18:55,576 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 07:18:55,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:18:56,159 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-13 07:18:56,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:18:56,186 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-10-13 07:18:56,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:18:56,244 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-10-13 07:18:56,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:18:56,274 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-10-13 07:18:56,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:18:56,284 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-10-13 07:18:56,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:18:56,316 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-13 07:18:56,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:18:56,329 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2024-10-13 07:18:56,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:18:56,339 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-10-13 07:18:56,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:18:56,349 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-10-13 07:18:56,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:18:56,396 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-10-13 07:18:56,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:18:56,414 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-13 07:18:56,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:18:56,428 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2024-10-13 07:18:56,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:18:56,446 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2024-10-13 07:18:56,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:18:56,463 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2024-10-13 07:18:56,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:18:56,475 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-10-13 07:18:56,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:18:56,490 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2024-10-13 07:18:56,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:18:56,507 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2024-10-13 07:18:56,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:18:56,521 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2024-10-13 07:18:56,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:18:56,541 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2024-10-13 07:18:56,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:18:56,556 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2024-10-13 07:18:56,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:18:56,569 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2024-10-13 07:18:56,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:18:56,585 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2024-10-13 07:18:56,586 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 07:18:56,586 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1260336042] [2024-10-13 07:18:56,587 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1260336042] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 07:18:56,587 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 07:18:56,588 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-13 07:18:56,589 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1724739433] [2024-10-13 07:18:56,590 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 07:18:56,595 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-13 07:18:56,595 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 07:18:56,621 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-13 07:18:56,622 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-10-13 07:18:56,626 INFO L87 Difference]: Start difference. First operand has 168 states, 94 states have (on average 1.2446808510638299) internal successors, (117), 95 states have internal predecessors, (117), 55 states have call successors, (55), 17 states have call predecessors, (55), 17 states have return successors, (55), 55 states have call predecessors, (55), 55 states have call successors, (55) Second operand has 5 states, 5 states have (on average 8.0) internal successors, (40), 2 states have internal predecessors, (40), 2 states have call successors, (23), 5 states have call predecessors, (23), 2 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2024-10-13 07:18:57,478 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 07:18:57,479 INFO L93 Difference]: Finished difference Result 348 states and 517 transitions. [2024-10-13 07:18:57,480 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-13 07:18:57,482 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.0) internal successors, (40), 2 states have internal predecessors, (40), 2 states have call successors, (23), 5 states have call predecessors, (23), 2 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) Word has length 123 [2024-10-13 07:18:57,482 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 07:18:57,493 INFO L225 Difference]: With dead ends: 348 [2024-10-13 07:18:57,494 INFO L226 Difference]: Without dead ends: 179 [2024-10-13 07:18:57,502 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 53 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2024-10-13 07:18:57,506 INFO L432 NwaCegarLoop]: 140 mSDtfsCounter, 148 mSDsluCounter, 63 mSDsCounter, 0 mSdLazyCounter, 148 mSolverCounterSat, 218 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 148 SdHoareTripleChecker+Valid, 203 SdHoareTripleChecker+Invalid, 366 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 218 IncrementalHoareTripleChecker+Valid, 148 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-10-13 07:18:57,507 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [148 Valid, 203 Invalid, 366 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [218 Valid, 148 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-10-13 07:18:57,524 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 179 states. [2024-10-13 07:18:57,561 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 179 to 162. [2024-10-13 07:18:57,562 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 162 states, 90 states have (on average 1.1888888888888889) internal successors, (107), 91 states have internal predecessors, (107), 55 states have call successors, (55), 17 states have call predecessors, (55), 16 states have return successors, (53), 53 states have call predecessors, (53), 53 states have call successors, (53) [2024-10-13 07:18:57,565 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 162 states to 162 states and 215 transitions. [2024-10-13 07:18:57,568 INFO L78 Accepts]: Start accepts. Automaton has 162 states and 215 transitions. Word has length 123 [2024-10-13 07:18:57,568 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 07:18:57,568 INFO L471 AbstractCegarLoop]: Abstraction has 162 states and 215 transitions. [2024-10-13 07:18:57,568 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.0) internal successors, (40), 2 states have internal predecessors, (40), 2 states have call successors, (23), 5 states have call predecessors, (23), 2 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2024-10-13 07:18:57,569 INFO L276 IsEmpty]: Start isEmpty. Operand 162 states and 215 transitions. [2024-10-13 07:18:57,574 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2024-10-13 07:18:57,577 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 07:18:57,578 INFO L215 NwaCegarLoop]: trace histogram [10, 10, 10, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:18:57,578 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-13 07:18:57,578 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-13 07:18:57,579 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 07:18:57,579 INFO L85 PathProgramCache]: Analyzing trace with hash 1388954360, now seen corresponding path program 1 times [2024-10-13 07:18:57,579 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 07:18:57,579 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [136573919] [2024-10-13 07:18:57,579 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 07:18:57,580 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 07:18:57,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:18:57,957 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-13 07:18:57,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:18:57,983 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-10-13 07:18:57,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:18:58,023 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-10-13 07:18:58,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:18:58,047 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-10-13 07:18:58,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:18:58,055 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-10-13 07:18:58,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:18:58,079 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-13 07:18:58,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:18:58,127 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2024-10-13 07:18:58,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:18:58,136 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-10-13 07:18:58,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:18:58,143 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-10-13 07:18:58,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:18:58,160 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-10-13 07:18:58,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:18:58,170 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-13 07:18:58,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:18:58,177 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2024-10-13 07:18:58,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:18:58,186 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2024-10-13 07:18:58,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:18:58,194 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2024-10-13 07:18:58,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:18:58,202 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-10-13 07:18:58,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:18:58,211 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2024-10-13 07:18:58,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:18:58,219 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2024-10-13 07:18:58,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:18:58,229 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2024-10-13 07:18:58,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:18:58,250 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2024-10-13 07:18:58,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:18:58,263 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2024-10-13 07:18:58,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:18:58,274 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2024-10-13 07:18:58,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:18:58,286 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 208 trivial. 0 not checked. [2024-10-13 07:18:58,286 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 07:18:58,287 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [136573919] [2024-10-13 07:18:58,287 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [136573919] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-13 07:18:58,287 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [950821608] [2024-10-13 07:18:58,287 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 07:18:58,288 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-13 07:18:58,288 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-13 07:18:58,290 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 07:18:58,292 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 07:18:58,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:18:58,797 INFO L255 TraceCheckSpWp]: Trace formula consists of 2217 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-10-13 07:18:58,810 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-13 07:18:58,905 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 80 proven. 0 refuted. 0 times theorem prover too weak. 140 trivial. 0 not checked. [2024-10-13 07:18:58,905 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-13 07:18:58,905 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [950821608] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 07:18:58,906 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-13 07:18:58,906 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [8] total 11 [2024-10-13 07:18:58,907 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1567605528] [2024-10-13 07:18:58,907 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 07:18:58,908 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-13 07:18:58,908 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 07:18:58,908 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-13 07:18:58,909 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2024-10-13 07:18:58,909 INFO L87 Difference]: Start difference. First operand 162 states and 215 transitions. Second operand has 5 states, 5 states have (on average 9.2) internal successors, (46), 5 states have internal predecessors, (46), 3 states have call successors, (23), 2 states have call predecessors, (23), 3 states have return successors, (21), 3 states have call predecessors, (21), 3 states have call successors, (21) [2024-10-13 07:18:59,189 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 07:18:59,189 INFO L93 Difference]: Finished difference Result 300 states and 404 transitions. [2024-10-13 07:18:59,190 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-13 07:18:59,190 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.2) internal successors, (46), 5 states have internal predecessors, (46), 3 states have call successors, (23), 2 states have call predecessors, (23), 3 states have return successors, (21), 3 states have call predecessors, (21), 3 states have call successors, (21) Word has length 123 [2024-10-13 07:18:59,191 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 07:18:59,194 INFO L225 Difference]: With dead ends: 300 [2024-10-13 07:18:59,195 INFO L226 Difference]: Without dead ends: 164 [2024-10-13 07:18:59,196 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 167 GetRequests, 158 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2024-10-13 07:18:59,197 INFO L432 NwaCegarLoop]: 182 mSDtfsCounter, 47 mSDsluCounter, 460 mSDsCounter, 0 mSdLazyCounter, 133 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 81 SdHoareTripleChecker+Valid, 642 SdHoareTripleChecker+Invalid, 135 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 133 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-13 07:18:59,197 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [81 Valid, 642 Invalid, 135 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 133 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-13 07:18:59,198 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 164 states. [2024-10-13 07:18:59,224 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 164 to 164. [2024-10-13 07:18:59,224 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 164 states, 91 states have (on average 1.1868131868131868) internal successors, (108), 93 states have internal predecessors, (108), 55 states have call successors, (55), 17 states have call predecessors, (55), 17 states have return successors, (58), 53 states have call predecessors, (58), 53 states have call successors, (58) [2024-10-13 07:18:59,226 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 164 states to 164 states and 221 transitions. [2024-10-13 07:18:59,227 INFO L78 Accepts]: Start accepts. Automaton has 164 states and 221 transitions. Word has length 123 [2024-10-13 07:18:59,227 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 07:18:59,228 INFO L471 AbstractCegarLoop]: Abstraction has 164 states and 221 transitions. [2024-10-13 07:18:59,228 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.2) internal successors, (46), 5 states have internal predecessors, (46), 3 states have call successors, (23), 2 states have call predecessors, (23), 3 states have return successors, (21), 3 states have call predecessors, (21), 3 states have call successors, (21) [2024-10-13 07:18:59,228 INFO L276 IsEmpty]: Start isEmpty. Operand 164 states and 221 transitions. [2024-10-13 07:18:59,230 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2024-10-13 07:18:59,230 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 07:18:59,230 INFO L215 NwaCegarLoop]: trace histogram [10, 10, 10, 5, 5, 3, 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] [2024-10-13 07:18:59,253 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 07:18:59,431 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-13 07:18:59,431 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-13 07:18:59,432 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 07:18:59,432 INFO L85 PathProgramCache]: Analyzing trace with hash -416305792, now seen corresponding path program 1 times [2024-10-13 07:18:59,432 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 07:18:59,432 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2042112236] [2024-10-13 07:18:59,432 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 07:18:59,433 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 07:18:59,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:18:59,964 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-13 07:18:59,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:18:59,979 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-10-13 07:18:59,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:19:00,022 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-10-13 07:19:00,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:19:00,046 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-10-13 07:19:00,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:19:00,056 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-10-13 07:19:00,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:19:00,083 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-13 07:19:00,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:19:00,116 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-13 07:19:00,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:19:00,137 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-13 07:19:00,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:19:00,145 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-13 07:19:00,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:19:00,155 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-10-13 07:19:00,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:19:00,184 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-10-13 07:19:00,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:19:00,199 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-10-13 07:19:00,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:19:00,217 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-13 07:19:00,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:19:00,227 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-10-13 07:19:00,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:19:00,271 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-13 07:19:00,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:19:00,289 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-13 07:19:00,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:19:00,298 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-10-13 07:19:00,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:19:00,311 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2024-10-13 07:19:00,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:19:00,324 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2024-10-13 07:19:00,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:19:00,369 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2024-10-13 07:19:00,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:19:00,380 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2024-10-13 07:19:00,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:19:00,391 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2024-10-13 07:19:00,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:19:00,400 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2024-10-13 07:19:00,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:19:00,408 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2024-10-13 07:19:00,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:19:00,415 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2024-10-13 07:19:00,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:19:00,423 INFO L134 CoverageAnalysis]: Checked inductivity of 233 backedges. 6 proven. 6 refuted. 0 times theorem prover too weak. 221 trivial. 0 not checked. [2024-10-13 07:19:00,424 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 07:19:00,424 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2042112236] [2024-10-13 07:19:00,424 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2042112236] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-13 07:19:00,424 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [164606753] [2024-10-13 07:19:00,424 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 07:19:00,425 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-13 07:19:00,425 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-13 07:19:00,427 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 07:19:00,429 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 07:19:00,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:19:00,958 INFO L255 TraceCheckSpWp]: Trace formula consists of 2487 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-10-13 07:19:00,965 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-13 07:19:01,068 INFO L134 CoverageAnalysis]: Checked inductivity of 233 backedges. 126 proven. 0 refuted. 0 times theorem prover too weak. 107 trivial. 0 not checked. [2024-10-13 07:19:01,068 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-13 07:19:01,069 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [164606753] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 07:19:01,069 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-13 07:19:01,069 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [9] total 13 [2024-10-13 07:19:01,069 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1638095799] [2024-10-13 07:19:01,070 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 07:19:01,070 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-13 07:19:01,070 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 07:19:01,071 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-13 07:19:01,071 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=127, Unknown=0, NotChecked=0, Total=156 [2024-10-13 07:19:01,071 INFO L87 Difference]: Start difference. First operand 164 states and 221 transitions. Second operand has 6 states, 5 states have (on average 11.6) internal successors, (58), 6 states have internal predecessors, (58), 4 states have call successors, (25), 2 states have call predecessors, (25), 3 states have return successors, (23), 3 states have call predecessors, (23), 4 states have call successors, (23) [2024-10-13 07:19:01,394 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 07:19:01,394 INFO L93 Difference]: Finished difference Result 266 states and 358 transitions. [2024-10-13 07:19:01,395 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-13 07:19:01,395 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 11.6) internal successors, (58), 6 states have internal predecessors, (58), 4 states have call successors, (25), 2 states have call predecessors, (25), 3 states have return successors, (23), 3 states have call predecessors, (23), 4 states have call successors, (23) Word has length 149 [2024-10-13 07:19:01,396 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 07:19:01,398 INFO L225 Difference]: With dead ends: 266 [2024-10-13 07:19:01,398 INFO L226 Difference]: Without dead ends: 164 [2024-10-13 07:19:01,399 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 203 GetRequests, 191 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=35, Invalid=147, Unknown=0, NotChecked=0, Total=182 [2024-10-13 07:19:01,399 INFO L432 NwaCegarLoop]: 182 mSDtfsCounter, 50 mSDsluCounter, 622 mSDsCounter, 0 mSdLazyCounter, 163 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 62 SdHoareTripleChecker+Valid, 804 SdHoareTripleChecker+Invalid, 187 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 163 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-10-13 07:19:01,400 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [62 Valid, 804 Invalid, 187 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 163 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-10-13 07:19:01,401 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 164 states. [2024-10-13 07:19:01,416 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 164 to 164. [2024-10-13 07:19:01,417 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 164 states, 91 states have (on average 1.1868131868131868) internal successors, (108), 93 states have internal predecessors, (108), 55 states have call successors, (55), 17 states have call predecessors, (55), 17 states have return successors, (55), 53 states have call predecessors, (55), 53 states have call successors, (55) [2024-10-13 07:19:01,418 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 164 states to 164 states and 218 transitions. [2024-10-13 07:19:01,419 INFO L78 Accepts]: Start accepts. Automaton has 164 states and 218 transitions. Word has length 149 [2024-10-13 07:19:01,419 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 07:19:01,420 INFO L471 AbstractCegarLoop]: Abstraction has 164 states and 218 transitions. [2024-10-13 07:19:01,420 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 11.6) internal successors, (58), 6 states have internal predecessors, (58), 4 states have call successors, (25), 2 states have call predecessors, (25), 3 states have return successors, (23), 3 states have call predecessors, (23), 4 states have call successors, (23) [2024-10-13 07:19:01,420 INFO L276 IsEmpty]: Start isEmpty. Operand 164 states and 218 transitions. [2024-10-13 07:19:01,422 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2024-10-13 07:19:01,422 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 07:19:01,422 INFO L215 NwaCegarLoop]: trace histogram [10, 10, 10, 5, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2024-10-13 07:19:01,445 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-10-13 07:19:01,626 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable2 [2024-10-13 07:19:01,627 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-13 07:19:01,627 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 07:19:01,627 INFO L85 PathProgramCache]: Analyzing trace with hash -1852445845, now seen corresponding path program 2 times [2024-10-13 07:19:01,627 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 07:19:01,628 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1422757993] [2024-10-13 07:19:01,628 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 07:19:01,628 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 07:19:01,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:19:02,164 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-13 07:19:02,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:19:02,177 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-10-13 07:19:02,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:19:02,211 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-10-13 07:19:02,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:19:02,230 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-10-13 07:19:02,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:19:02,236 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-10-13 07:19:02,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:19:02,272 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-13 07:19:02,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:19:02,304 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-13 07:19:02,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:19:02,325 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-13 07:19:02,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:19:02,332 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-13 07:19:02,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:19:02,341 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-10-13 07:19:02,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:19:02,348 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-10-13 07:19:02,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:19:02,357 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-10-13 07:19:02,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:19:02,368 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-13 07:19:02,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:19:02,374 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-10-13 07:19:02,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:19:02,404 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-13 07:19:02,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:19:02,415 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-13 07:19:02,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:19:02,421 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-10-13 07:19:02,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:19:02,431 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2024-10-13 07:19:02,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:19:02,440 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2024-10-13 07:19:02,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:19:02,469 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-13 07:19:02,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:19:02,480 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-13 07:19:02,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:19:02,487 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2024-10-13 07:19:02,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:19:02,496 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2024-10-13 07:19:02,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:19:02,504 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2024-10-13 07:19:02,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:19:02,513 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2024-10-13 07:19:02,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:19:02,549 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2024-10-13 07:19:02,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:19:02,556 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2024-10-13 07:19:02,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:19:02,563 INFO L134 CoverageAnalysis]: Checked inductivity of 259 backedges. 9 proven. 3 refuted. 0 times theorem prover too weak. 247 trivial. 0 not checked. [2024-10-13 07:19:02,563 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 07:19:02,563 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1422757993] [2024-10-13 07:19:02,563 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1422757993] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-13 07:19:02,563 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1373312699] [2024-10-13 07:19:02,564 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-10-13 07:19:02,564 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-13 07:19:02,564 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-13 07:19:02,566 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 07:19:02,567 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 07:19:03,152 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-10-13 07:19:03,153 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-13 07:19:03,163 INFO L255 TraceCheckSpWp]: Trace formula consists of 2622 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-10-13 07:19:03,169 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-13 07:19:03,332 INFO L134 CoverageAnalysis]: Checked inductivity of 259 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 247 trivial. 0 not checked. [2024-10-13 07:19:03,332 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-13 07:19:03,332 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1373312699] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 07:19:03,332 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-13 07:19:03,333 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [11] total 17 [2024-10-13 07:19:03,333 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1104739363] [2024-10-13 07:19:03,333 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 07:19:03,334 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-10-13 07:19:03,334 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 07:19:03,334 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-10-13 07:19:03,335 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=233, Unknown=0, NotChecked=0, Total=272 [2024-10-13 07:19:03,335 INFO L87 Difference]: Start difference. First operand 164 states and 218 transitions. Second operand has 8 states, 8 states have (on average 6.625) internal successors, (53), 7 states have internal predecessors, (53), 5 states have call successors, (25), 3 states have call predecessors, (25), 2 states have return successors, (23), 5 states have call predecessors, (23), 4 states have call successors, (23) [2024-10-13 07:19:03,721 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 07:19:03,721 INFO L93 Difference]: Finished difference Result 260 states and 345 transitions. [2024-10-13 07:19:03,722 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-10-13 07:19:03,722 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 6.625) internal successors, (53), 7 states have internal predecessors, (53), 5 states have call successors, (25), 3 states have call predecessors, (25), 2 states have return successors, (23), 5 states have call predecessors, (23), 4 states have call successors, (23) Word has length 162 [2024-10-13 07:19:03,723 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 07:19:03,724 INFO L225 Difference]: With dead ends: 260 [2024-10-13 07:19:03,725 INFO L226 Difference]: Without dead ends: 162 [2024-10-13 07:19:03,725 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 223 GetRequests, 206 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=51, Invalid=291, Unknown=0, NotChecked=0, Total=342 [2024-10-13 07:19:03,726 INFO L432 NwaCegarLoop]: 179 mSDtfsCounter, 55 mSDsluCounter, 956 mSDsCounter, 0 mSdLazyCounter, 238 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 67 SdHoareTripleChecker+Valid, 1135 SdHoareTripleChecker+Invalid, 266 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 238 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-10-13 07:19:03,726 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [67 Valid, 1135 Invalid, 266 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 238 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-10-13 07:19:03,728 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 162 states. [2024-10-13 07:19:03,747 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 162 to 162. [2024-10-13 07:19:03,748 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 162 states, 90 states have (on average 1.1777777777777778) internal successors, (106), 91 states have internal predecessors, (106), 55 states have call successors, (55), 17 states have call predecessors, (55), 16 states have return successors, (53), 53 states have call predecessors, (53), 53 states have call successors, (53) [2024-10-13 07:19:03,749 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 162 states to 162 states and 214 transitions. [2024-10-13 07:19:03,750 INFO L78 Accepts]: Start accepts. Automaton has 162 states and 214 transitions. Word has length 162 [2024-10-13 07:19:03,750 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 07:19:03,750 INFO L471 AbstractCegarLoop]: Abstraction has 162 states and 214 transitions. [2024-10-13 07:19:03,751 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 6.625) internal successors, (53), 7 states have internal predecessors, (53), 5 states have call successors, (25), 3 states have call predecessors, (25), 2 states have return successors, (23), 5 states have call predecessors, (23), 4 states have call successors, (23) [2024-10-13 07:19:03,751 INFO L276 IsEmpty]: Start isEmpty. Operand 162 states and 214 transitions. [2024-10-13 07:19:03,753 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 189 [2024-10-13 07:19:03,753 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 07:19:03,753 INFO L215 NwaCegarLoop]: trace histogram [10, 10, 10, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:19:03,775 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2024-10-13 07:19:03,954 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-13 07:19:03,954 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-13 07:19:03,955 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 07:19:03,955 INFO L85 PathProgramCache]: Analyzing trace with hash 703584717, now seen corresponding path program 1 times [2024-10-13 07:19:03,955 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 07:19:03,955 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1910907691] [2024-10-13 07:19:03,955 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 07:19:03,956 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 07:19:04,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:19:04,752 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-13 07:19:04,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:19:04,760 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-10-13 07:19:04,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:19:04,793 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-10-13 07:19:04,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:19:04,807 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-10-13 07:19:04,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:19:04,813 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-10-13 07:19:04,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:19:04,838 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-13 07:19:04,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:19:04,857 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-13 07:19:04,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:19:04,880 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-13 07:19:04,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:19:04,887 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-13 07:19:04,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:19:04,893 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-10-13 07:19:04,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:19:04,898 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-10-13 07:19:04,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:19:04,903 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-10-13 07:19:04,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:19:04,992 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-13 07:19:04,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:19:04,998 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-10-13 07:19:05,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:19:05,028 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-13 07:19:05,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:19:05,043 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-13 07:19:05,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:19:05,050 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-10-13 07:19:05,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:19:05,061 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2024-10-13 07:19:05,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:19:05,070 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2024-10-13 07:19:05,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:19:05,092 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-13 07:19:05,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:19:05,105 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-13 07:19:05,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:19:05,113 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2024-10-13 07:19:05,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:19:05,120 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2024-10-13 07:19:05,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:19:05,127 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2024-10-13 07:19:05,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:19:05,135 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2024-10-13 07:19:05,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:19:05,156 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-13 07:19:05,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:19:05,172 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-13 07:19:05,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:19:05,179 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2024-10-13 07:19:05,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:19:05,185 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 166 [2024-10-13 07:19:05,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:19:05,207 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-13 07:19:05,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:19:05,218 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-13 07:19:05,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:19:05,226 INFO L134 CoverageAnalysis]: Checked inductivity of 350 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 350 trivial. 0 not checked. [2024-10-13 07:19:05,227 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 07:19:05,228 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1910907691] [2024-10-13 07:19:05,228 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1910907691] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 07:19:05,228 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 07:19:05,228 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-10-13 07:19:05,228 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2017529537] [2024-10-13 07:19:05,229 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 07:19:05,229 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-10-13 07:19:05,230 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 07:19:05,230 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-10-13 07:19:05,232 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2024-10-13 07:19:05,232 INFO L87 Difference]: Start difference. First operand 162 states and 214 transitions. Second operand has 10 states, 9 states have (on average 5.444444444444445) internal successors, (49), 6 states have internal predecessors, (49), 3 states have call successors, (25), 5 states have call predecessors, (25), 2 states have return successors, (23), 4 states have call predecessors, (23), 3 states have call successors, (23) [2024-10-13 07:19:06,540 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 07:19:06,540 INFO L93 Difference]: Finished difference Result 289 states and 383 transitions. [2024-10-13 07:19:06,541 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-10-13 07:19:06,541 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 5.444444444444445) internal successors, (49), 6 states have internal predecessors, (49), 3 states have call successors, (25), 5 states have call predecessors, (25), 2 states have return successors, (23), 4 states have call predecessors, (23), 3 states have call successors, (23) Word has length 188 [2024-10-13 07:19:06,541 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 07:19:06,543 INFO L225 Difference]: With dead ends: 289 [2024-10-13 07:19:06,543 INFO L226 Difference]: Without dead ends: 186 [2024-10-13 07:19:06,544 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 74 GetRequests, 62 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=42, Invalid=140, Unknown=0, NotChecked=0, Total=182 [2024-10-13 07:19:06,546 INFO L432 NwaCegarLoop]: 140 mSDtfsCounter, 89 mSDsluCounter, 650 mSDsCounter, 0 mSdLazyCounter, 723 mSolverCounterSat, 138 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 92 SdHoareTripleChecker+Valid, 790 SdHoareTripleChecker+Invalid, 861 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 138 IncrementalHoareTripleChecker+Valid, 723 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-10-13 07:19:06,546 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [92 Valid, 790 Invalid, 861 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [138 Valid, 723 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-10-13 07:19:06,547 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 186 states. [2024-10-13 07:19:06,562 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 186 to 175. [2024-10-13 07:19:06,563 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 175 states, 98 states have (on average 1.1734693877551021) internal successors, (115), 99 states have internal predecessors, (115), 59 states have call successors, (59), 17 states have call predecessors, (59), 17 states have return successors, (58), 58 states have call predecessors, (58), 57 states have call successors, (58) [2024-10-13 07:19:06,564 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 175 states to 175 states and 232 transitions. [2024-10-13 07:19:06,565 INFO L78 Accepts]: Start accepts. Automaton has 175 states and 232 transitions. Word has length 188 [2024-10-13 07:19:06,565 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 07:19:06,565 INFO L471 AbstractCegarLoop]: Abstraction has 175 states and 232 transitions. [2024-10-13 07:19:06,566 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 5.444444444444445) internal successors, (49), 6 states have internal predecessors, (49), 3 states have call successors, (25), 5 states have call predecessors, (25), 2 states have return successors, (23), 4 states have call predecessors, (23), 3 states have call successors, (23) [2024-10-13 07:19:06,566 INFO L276 IsEmpty]: Start isEmpty. Operand 175 states and 232 transitions. [2024-10-13 07:19:06,568 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 189 [2024-10-13 07:19:06,568 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 07:19:06,568 INFO L215 NwaCegarLoop]: trace histogram [10, 10, 10, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:19:06,569 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-10-13 07:19:06,569 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-13 07:19:06,569 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 07:19:06,569 INFO L85 PathProgramCache]: Analyzing trace with hash -179924273, now seen corresponding path program 1 times [2024-10-13 07:19:06,569 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 07:19:06,570 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2117960093] [2024-10-13 07:19:06,570 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 07:19:06,570 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 07:19:06,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:19:07,391 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-13 07:19:07,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:19:07,399 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-10-13 07:19:07,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:19:07,430 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-10-13 07:19:07,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:19:07,443 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-10-13 07:19:07,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:19:07,448 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-10-13 07:19:07,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:19:07,472 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-13 07:19:07,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:19:07,492 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-13 07:19:07,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:19:07,512 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-13 07:19:07,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:19:07,519 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-13 07:19:07,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:19:07,524 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-10-13 07:19:07,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:19:07,529 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-10-13 07:19:07,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:19:07,535 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-10-13 07:19:07,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:19:07,594 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-13 07:19:07,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:19:07,600 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-10-13 07:19:07,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:19:07,629 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-13 07:19:07,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:19:07,639 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-13 07:19:07,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:19:07,645 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-10-13 07:19:07,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:19:07,652 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2024-10-13 07:19:07,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:19:07,660 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2024-10-13 07:19:07,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:19:07,688 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-13 07:19:07,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:19:07,698 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-13 07:19:07,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:19:07,704 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2024-10-13 07:19:07,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:19:07,716 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2024-10-13 07:19:07,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:19:07,722 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2024-10-13 07:19:07,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:19:07,728 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2024-10-13 07:19:07,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:19:07,750 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-13 07:19:07,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:19:07,761 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-13 07:19:07,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:19:07,768 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2024-10-13 07:19:07,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:19:07,774 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 166 [2024-10-13 07:19:07,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:19:07,818 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-13 07:19:07,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:19:07,832 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-13 07:19:07,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:19:07,840 INFO L134 CoverageAnalysis]: Checked inductivity of 350 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 350 trivial. 0 not checked. [2024-10-13 07:19:07,841 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 07:19:07,841 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2117960093] [2024-10-13 07:19:07,841 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2117960093] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 07:19:07,841 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 07:19:07,841 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-10-13 07:19:07,841 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1862134875] [2024-10-13 07:19:07,842 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 07:19:07,842 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-10-13 07:19:07,842 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 07:19:07,843 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-10-13 07:19:07,843 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2024-10-13 07:19:07,844 INFO L87 Difference]: Start difference. First operand 175 states and 232 transitions. Second operand has 11 states, 10 states have (on average 4.9) internal successors, (49), 7 states have internal predecessors, (49), 4 states have call successors, (25), 5 states have call predecessors, (25), 2 states have return successors, (23), 5 states have call predecessors, (23), 4 states have call successors, (23) [2024-10-13 07:19:09,525 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 07:19:09,525 INFO L93 Difference]: Finished difference Result 304 states and 407 transitions. [2024-10-13 07:19:09,526 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-10-13 07:19:09,526 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 4.9) internal successors, (49), 7 states have internal predecessors, (49), 4 states have call successors, (25), 5 states have call predecessors, (25), 2 states have return successors, (23), 5 states have call predecessors, (23), 4 states have call successors, (23) Word has length 188 [2024-10-13 07:19:09,527 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 07:19:09,529 INFO L225 Difference]: With dead ends: 304 [2024-10-13 07:19:09,529 INFO L226 Difference]: Without dead ends: 207 [2024-10-13 07:19:09,530 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 75 GetRequests, 62 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=44, Invalid=166, Unknown=0, NotChecked=0, Total=210 [2024-10-13 07:19:09,531 INFO L432 NwaCegarLoop]: 144 mSDtfsCounter, 96 mSDsluCounter, 802 mSDsCounter, 0 mSdLazyCounter, 931 mSolverCounterSat, 155 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 108 SdHoareTripleChecker+Valid, 946 SdHoareTripleChecker+Invalid, 1086 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 155 IncrementalHoareTripleChecker+Valid, 931 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2024-10-13 07:19:09,531 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [108 Valid, 946 Invalid, 1086 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [155 Valid, 931 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2024-10-13 07:19:09,532 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 207 states. [2024-10-13 07:19:09,553 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 207 to 181. [2024-10-13 07:19:09,553 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 181 states, 101 states have (on average 1.1683168316831682) internal successors, (118), 102 states have internal predecessors, (118), 62 states have call successors, (62), 17 states have call predecessors, (62), 17 states have return successors, (61), 61 states have call predecessors, (61), 60 states have call successors, (61) [2024-10-13 07:19:09,555 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 181 states to 181 states and 241 transitions. [2024-10-13 07:19:09,556 INFO L78 Accepts]: Start accepts. Automaton has 181 states and 241 transitions. Word has length 188 [2024-10-13 07:19:09,556 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 07:19:09,556 INFO L471 AbstractCegarLoop]: Abstraction has 181 states and 241 transitions. [2024-10-13 07:19:09,557 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 4.9) internal successors, (49), 7 states have internal predecessors, (49), 4 states have call successors, (25), 5 states have call predecessors, (25), 2 states have return successors, (23), 5 states have call predecessors, (23), 4 states have call successors, (23) [2024-10-13 07:19:09,557 INFO L276 IsEmpty]: Start isEmpty. Operand 181 states and 241 transitions. [2024-10-13 07:19:09,559 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 189 [2024-10-13 07:19:09,559 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 07:19:09,559 INFO L215 NwaCegarLoop]: trace histogram [10, 10, 10, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:19:09,559 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-10-13 07:19:09,559 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-13 07:19:09,560 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 07:19:09,560 INFO L85 PathProgramCache]: Analyzing trace with hash 499347981, now seen corresponding path program 1 times [2024-10-13 07:19:09,560 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 07:19:09,560 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1886356292] [2024-10-13 07:19:09,560 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 07:19:09,560 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 07:19:10,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:19:10,795 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-13 07:19:10,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:19:10,803 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-10-13 07:19:10,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:19:10,829 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-10-13 07:19:10,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:19:10,840 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-10-13 07:19:10,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:19:10,846 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-10-13 07:19:10,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:19:10,866 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-13 07:19:10,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:19:10,883 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-13 07:19:10,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:19:10,902 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-13 07:19:10,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:19:10,930 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-13 07:19:10,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:19:10,936 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-10-13 07:19:10,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:19:10,941 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-10-13 07:19:10,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:19:10,946 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-10-13 07:19:10,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:19:10,952 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-13 07:19:10,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:19:10,958 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-10-13 07:19:10,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:19:10,975 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-13 07:19:10,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:19:10,985 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-13 07:19:10,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:19:10,991 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-10-13 07:19:10,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:19:10,996 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2024-10-13 07:19:10,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:19:11,062 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2024-10-13 07:19:11,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:19:11,085 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-13 07:19:11,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:19:11,101 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-13 07:19:11,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:19:11,112 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2024-10-13 07:19:11,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:19:11,130 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2024-10-13 07:19:11,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:19:11,137 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2024-10-13 07:19:11,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:19:11,143 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2024-10-13 07:19:11,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:19:11,163 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-13 07:19:11,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:19:11,174 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-13 07:19:11,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:19:11,180 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2024-10-13 07:19:11,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:19:11,186 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 166 [2024-10-13 07:19:11,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:19:11,207 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-13 07:19:11,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:19:11,218 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-13 07:19:11,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:19:11,225 INFO L134 CoverageAnalysis]: Checked inductivity of 350 backedges. 15 proven. 12 refuted. 0 times theorem prover too weak. 323 trivial. 0 not checked. [2024-10-13 07:19:11,225 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 07:19:11,225 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1886356292] [2024-10-13 07:19:11,225 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1886356292] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-13 07:19:11,226 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1088977044] [2024-10-13 07:19:11,226 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 07:19:11,226 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-13 07:19:11,226 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-13 07:19:11,228 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 07:19:11,229 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 07:19:11,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:19:11,905 INFO L255 TraceCheckSpWp]: Trace formula consists of 2886 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-10-13 07:19:11,909 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-13 07:19:11,938 INFO L134 CoverageAnalysis]: Checked inductivity of 350 backedges. 213 proven. 0 refuted. 0 times theorem prover too weak. 137 trivial. 0 not checked. [2024-10-13 07:19:11,939 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-13 07:19:11,939 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1088977044] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 07:19:11,939 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-13 07:19:11,939 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [8] total 9 [2024-10-13 07:19:11,939 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1903819131] [2024-10-13 07:19:11,940 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 07:19:11,940 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-13 07:19:11,940 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 07:19:11,941 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-13 07:19:11,941 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2024-10-13 07:19:11,941 INFO L87 Difference]: Start difference. First operand 181 states and 241 transitions. Second operand has 5 states, 4 states have (on average 16.75) internal successors, (67), 5 states have internal predecessors, (67), 3 states have call successors, (27), 2 states have call predecessors, (27), 3 states have return successors, (25), 2 states have call predecessors, (25), 3 states have call successors, (25) [2024-10-13 07:19:12,251 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 07:19:12,251 INFO L93 Difference]: Finished difference Result 284 states and 377 transitions. [2024-10-13 07:19:12,252 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-13 07:19:12,252 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 16.75) internal successors, (67), 5 states have internal predecessors, (67), 3 states have call successors, (27), 2 states have call predecessors, (27), 3 states have return successors, (25), 2 states have call predecessors, (25), 3 states have call successors, (25) Word has length 188 [2024-10-13 07:19:12,253 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 07:19:12,254 INFO L225 Difference]: With dead ends: 284 [2024-10-13 07:19:12,254 INFO L226 Difference]: Without dead ends: 162 [2024-10-13 07:19:12,255 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 253 GetRequests, 246 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2024-10-13 07:19:12,256 INFO L432 NwaCegarLoop]: 184 mSDtfsCounter, 0 mSDsluCounter, 515 mSDsCounter, 0 mSdLazyCounter, 153 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 699 SdHoareTripleChecker+Invalid, 153 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 153 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-10-13 07:19:12,256 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 699 Invalid, 153 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 153 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-10-13 07:19:12,256 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 162 states. [2024-10-13 07:19:12,275 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 162 to 162. [2024-10-13 07:19:12,276 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 162 states, 90 states have (on average 1.1555555555555554) internal successors, (104), 91 states have internal predecessors, (104), 55 states have call successors, (55), 17 states have call predecessors, (55), 16 states have return successors, (53), 53 states have call predecessors, (53), 53 states have call successors, (53) [2024-10-13 07:19:12,277 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 162 states to 162 states and 212 transitions. [2024-10-13 07:19:12,278 INFO L78 Accepts]: Start accepts. Automaton has 162 states and 212 transitions. Word has length 188 [2024-10-13 07:19:12,280 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 07:19:12,280 INFO L471 AbstractCegarLoop]: Abstraction has 162 states and 212 transitions. [2024-10-13 07:19:12,280 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 16.75) internal successors, (67), 5 states have internal predecessors, (67), 3 states have call successors, (27), 2 states have call predecessors, (27), 3 states have return successors, (25), 2 states have call predecessors, (25), 3 states have call successors, (25) [2024-10-13 07:19:12,280 INFO L276 IsEmpty]: Start isEmpty. Operand 162 states and 212 transitions. [2024-10-13 07:19:12,284 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 199 [2024-10-13 07:19:12,284 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 07:19:12,285 INFO L215 NwaCegarLoop]: trace histogram [11, 11, 11, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:19:12,309 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-10-13 07:19:12,485 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-13 07:19:12,485 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-13 07:19:12,486 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 07:19:12,486 INFO L85 PathProgramCache]: Analyzing trace with hash 1029549222, now seen corresponding path program 1 times [2024-10-13 07:19:12,486 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 07:19:12,486 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1575642805] [2024-10-13 07:19:12,486 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 07:19:12,486 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 07:19:13,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-10-13 07:19:13,790 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [656274568] [2024-10-13 07:19:13,791 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 07:19:13,791 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-13 07:19:13,791 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-13 07:19:13,793 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 07:19:13,794 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 07:19:26,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:19:26,743 INFO L255 TraceCheckSpWp]: Trace formula consists of 2926 conjuncts, 358 conjuncts are in the unsatisfiable core [2024-10-13 07:19:26,763 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-13 07:19:27,079 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 13