./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/aws-c-common/aws_array_list_back_harness.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 8be7027f Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/aws-c-common/aws_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-wip.dk.perfect-tracechecks-8be7027-m [2024-11-12 08:33:05,001 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-12 08:33:05,073 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2024-11-12 08:33:05,076 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-12 08:33:05,077 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-12 08:33:05,093 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-12 08:33:05,094 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-12 08:33:05,095 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-12 08:33:05,096 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-12 08:33:05,100 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-12 08:33:05,100 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-12 08:33:05,100 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-12 08:33:05,101 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-12 08:33:05,101 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-12 08:33:05,101 INFO L153 SettingsManager]: * Use SBE=true [2024-11-12 08:33:05,101 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-12 08:33:05,101 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-12 08:33:05,102 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-12 08:33:05,102 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-12 08:33:05,102 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-12 08:33:05,102 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-12 08:33:05,104 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-12 08:33:05,104 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-12 08:33:05,104 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-12 08:33:05,105 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-12 08:33:05,105 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-12 08:33:05,105 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-12 08:33:05,106 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-12 08:33:05,106 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-12 08:33:05,106 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-12 08:33:05,106 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-12 08:33:05,107 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-12 08:33:05,107 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-12 08:33:05,107 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-12 08:33:05,108 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-12 08:33:05,108 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-12 08:33:05,108 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-12 08:33:05,108 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-12 08:33:05,108 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-12 08:33:05,109 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2279e66d659d6de4a6f1e9cba0e3ed135a3304882c70e550497f0feeaae371b4 [2024-11-12 08:33:05,339 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-12 08:33:05,366 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-12 08:33:05,370 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-12 08:33:05,371 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-12 08:33:05,372 INFO L274 PluginConnector]: CDTParser initialized [2024-11-12 08:33:05,373 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/aws-c-common/aws_array_list_back_harness.i [2024-11-12 08:33:06,740 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-12 08:33:07,242 INFO L384 CDTParser]: Found 1 translation units. [2024-11-12 08:33:07,244 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_array_list_back_harness.i [2024-11-12 08:33:07,276 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/14fe42777/483de3b73b5b4260aa8ef573c2a0b8fb/FLAG7a41c7e7d [2024-11-12 08:33:07,291 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/14fe42777/483de3b73b5b4260aa8ef573c2a0b8fb [2024-11-12 08:33:07,295 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-12 08:33:07,296 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-12 08:33:07,297 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-12 08:33:07,298 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-12 08:33:07,302 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-12 08:33:07,303 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 08:33:07" (1/1) ... [2024-11-12 08:33:07,303 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@41c26ca1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 08:33:07, skipping insertion in model container [2024-11-12 08:33:07,303 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 08:33:07" (1/1) ... [2024-11-12 08:33:07,388 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-12 08:33:07,657 WARN L250 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] [2024-11-12 08:33:07,667 WARN L250 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] [2024-11-12 08:33:08,444 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-12 08:33:08,449 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-12 08:33:08,450 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-12 08:33:08,453 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-12 08:33:08,458 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-12 08:33:08,498 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-12 08:33:08,504 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-12 08:33:08,507 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-12 08:33:08,507 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-12 08:33:08,509 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-12 08:33:08,509 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-12 08:33:08,510 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-12 08:33:08,510 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-12 08:33:08,772 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-12 08:33:08,777 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-12 08:33:08,813 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-12 08:33:08,836 INFO L200 MainTranslator]: Completed pre-run [2024-11-12 08:33:08,846 WARN L250 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] [2024-11-12 08:33:08,847 WARN L250 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] [2024-11-12 08:33:08,893 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-12 08:33:08,897 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-12 08:33:08,897 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-12 08:33:08,898 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-12 08:33:08,898 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-12 08:33:08,903 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-12 08:33:08,906 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-12 08:33:08,907 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-12 08:33:08,909 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-12 08:33:08,909 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-12 08:33:08,910 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-12 08:33:08,910 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-12 08:33:08,910 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-12 08:33:08,991 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-12 08:33:08,994 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-12 08:33:08,998 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" : : "r"(pBuf) : "memory"); [7769-7780] [2024-11-12 08:33:09,012 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-12 08:33:09,204 INFO L204 MainTranslator]: Completed translation [2024-11-12 08:33:09,205 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 08:33:09 WrapperNode [2024-11-12 08:33:09,205 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-12 08:33:09,206 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-12 08:33:09,206 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-12 08:33:09,206 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-12 08:33:09,212 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 08:33:09" (1/1) ... [2024-11-12 08:33:09,264 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 08:33:09" (1/1) ... [2024-11-12 08:33:09,302 INFO L138 Inliner]: procedures = 680, calls = 1678, calls flagged for inlining = 52, calls inlined = 8, statements flattened = 656 [2024-11-12 08:33:09,302 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-12 08:33:09,302 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-12 08:33:09,303 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-12 08:33:09,303 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-12 08:33:09,319 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 08:33:09" (1/1) ... [2024-11-12 08:33:09,319 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 08:33:09" (1/1) ... [2024-11-12 08:33:09,334 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 08:33:09" (1/1) ... [2024-11-12 08:33:09,402 INFO L175 MemorySlicer]: Split 313 memory accesses to 6 slices as follows [238, 2, 9, 3, 55, 6]. 76 percent of accesses are in the largest equivalence class. The 24 initializations are split as follows [6, 2, 5, 1, 10, 0]. The 239 writes are split as follows [232, 0, 1, 1, 3, 2]. [2024-11-12 08:33:09,402 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 08:33:09" (1/1) ... [2024-11-12 08:33:09,402 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 08:33:09" (1/1) ... [2024-11-12 08:33:09,440 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 08:33:09" (1/1) ... [2024-11-12 08:33:09,443 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 08:33:09" (1/1) ... [2024-11-12 08:33:09,452 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 08:33:09" (1/1) ... [2024-11-12 08:33:09,459 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 08:33:09" (1/1) ... [2024-11-12 08:33:09,473 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-12 08:33:09,473 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-12 08:33:09,473 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-12 08:33:09,474 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-12 08:33:09,474 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 08:33:09" (1/1) ... [2024-11-12 08:33:09,481 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-12 08:33:09,490 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-12 08:33:09,505 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) [2024-11-12 08:33:09,508 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 [2024-11-12 08:33:09,542 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-12 08:33:09,542 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_is_bounded [2024-11-12 08:33:09,542 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_is_bounded [2024-11-12 08:33:09,543 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_is_valid [2024-11-12 08:33:09,543 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_is_valid [2024-11-12 08:33:09,543 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_bool [2024-11-12 08:33:09,543 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_bool [2024-11-12 08:33:09,543 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#0 [2024-11-12 08:33:09,543 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#1 [2024-11-12 08:33:09,543 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#2 [2024-11-12 08:33:09,543 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#3 [2024-11-12 08:33:09,543 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#4 [2024-11-12 08:33:09,544 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#5 [2024-11-12 08:33:09,544 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-12 08:33:09,544 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-12 08:33:09,545 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-11-12 08:33:09,545 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-11-12 08:33:09,545 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2024-11-12 08:33:09,545 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2024-11-12 08:33:09,545 INFO L130 BoogieDeclarations]: Found specification of procedure aws_raise_error [2024-11-12 08:33:09,545 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_raise_error [2024-11-12 08:33:09,545 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-11-12 08:33:09,545 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-11-12 08:33:09,545 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-12 08:33:09,546 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-12 08:33:09,546 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2024-11-12 08:33:09,546 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2024-11-12 08:33:09,546 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2024-11-12 08:33:09,546 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2024-11-12 08:33:09,546 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#4 [2024-11-12 08:33:09,546 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#5 [2024-11-12 08:33:09,546 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy_impl [2024-11-12 08:33:09,547 INFO L138 BoogieDeclarations]: Found implementation of procedure memcpy_impl [2024-11-12 08:33:09,547 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-12 08:33:09,547 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-12 08:33:09,547 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2024-11-12 08:33:09,547 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2024-11-12 08:33:09,547 INFO L130 BoogieDeclarations]: Found specification of procedure assert_byte_from_buffer_matches [2024-11-12 08:33:09,548 INFO L138 BoogieDeclarations]: Found implementation of procedure assert_byte_from_buffer_matches [2024-11-12 08:33:09,548 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_size_t [2024-11-12 08:33:09,548 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_size_t [2024-11-12 08:33:09,548 INFO L130 BoogieDeclarations]: Found specification of procedure aws_mul_size_checked [2024-11-12 08:33:09,548 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_mul_size_checked [2024-11-12 08:33:09,548 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#0 [2024-11-12 08:33:09,548 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#1 [2024-11-12 08:33:09,548 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#2 [2024-11-12 08:33:09,548 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#3 [2024-11-12 08:33:09,549 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#4 [2024-11-12 08:33:09,549 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#5 [2024-11-12 08:33:09,549 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_malloc [2024-11-12 08:33:09,549 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_malloc [2024-11-12 08:33:09,550 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_length [2024-11-12 08:33:09,550 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_length [2024-11-12 08:33:09,550 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-12 08:33:09,550 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-12 08:33:09,550 INFO L130 BoogieDeclarations]: Found specification of procedure my_memcpy [2024-11-12 08:33:09,550 INFO L138 BoogieDeclarations]: Found implementation of procedure my_memcpy [2024-11-12 08:33:09,550 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-12 08:33:09,550 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2024-11-12 08:33:09,550 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2024-11-12 08:33:09,550 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2024-11-12 08:33:09,550 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2024-11-12 08:33:09,551 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#4 [2024-11-12 08:33:09,551 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#5 [2024-11-12 08:33:09,551 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#0 [2024-11-12 08:33:09,551 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#1 [2024-11-12 08:33:09,551 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#2 [2024-11-12 08:33:09,552 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#3 [2024-11-12 08:33:09,552 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#4 [2024-11-12 08:33:09,552 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#5 [2024-11-12 08:33:09,552 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_allocator [2024-11-12 08:33:09,552 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_allocator [2024-11-12 08:33:09,552 INFO L130 BoogieDeclarations]: Found specification of procedure __CPROVER_overflow_mult [2024-11-12 08:33:09,552 INFO L138 BoogieDeclarations]: Found implementation of procedure __CPROVER_overflow_mult [2024-11-12 08:33:09,552 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-12 08:33:09,552 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-12 08:33:09,553 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-11-12 08:33:09,553 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-11-12 08:33:09,553 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2024-11-12 08:33:09,553 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2024-11-12 08:33:09,553 INFO L130 BoogieDeclarations]: Found specification of procedure ensure_array_list_has_allocated_data_member [2024-11-12 08:33:09,553 INFO L138 BoogieDeclarations]: Found implementation of procedure ensure_array_list_has_allocated_data_member [2024-11-12 08:33:09,553 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-12 08:33:09,553 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-12 08:33:09,554 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-11-12 08:33:09,554 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-11-12 08:33:09,554 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2024-11-12 08:33:09,554 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2024-11-12 08:33:09,857 INFO L238 CfgBuilder]: Building ICFG [2024-11-12 08:33:09,860 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-12 08:33:15,904 INFO L? ?]: Removed 126 outVars from TransFormulas that were not future-live. [2024-11-12 08:33:15,905 INFO L287 CfgBuilder]: Performing block encoding [2024-11-12 08:33:15,920 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-12 08:33:15,920 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-12 08:33:15,920 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 08:33:15 BoogieIcfgContainer [2024-11-12 08:33:15,921 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-12 08:33:15,923 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-12 08:33:15,923 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-12 08:33:15,925 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-12 08:33:15,926 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.11 08:33:07" (1/3) ... [2024-11-12 08:33:15,926 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@8209434 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 08:33:15, skipping insertion in model container [2024-11-12 08:33:15,926 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 08:33:09" (2/3) ... [2024-11-12 08:33:15,927 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@8209434 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 08:33:15, skipping insertion in model container [2024-11-12 08:33:15,927 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 08:33:15" (3/3) ... [2024-11-12 08:33:15,928 INFO L112 eAbstractionObserver]: Analyzing ICFG aws_array_list_back_harness.i [2024-11-12 08:33:15,941 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-12 08:33:15,942 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-12 08:33:16,008 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-12 08:33:16,014 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;@74325735, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-12 08:33:16,014 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-12 08:33:16,018 INFO L276 IsEmpty]: Start isEmpty. Operand has 186 states, 112 states have (on average 1.2053571428571428) internal successors, (135), 113 states have internal predecessors, (135), 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) [2024-11-12 08:33:16,032 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2024-11-12 08:33:16,032 INFO L210 NwaCegarLoop]: Found error trace [2024-11-12 08:33:16,033 INFO L218 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, 1, 1, 1, 1, 1, 1] [2024-11-12 08:33:16,033 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-12 08:33:16,039 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 08:33:16,039 INFO L85 PathProgramCache]: Analyzing trace with hash -357183169, now seen corresponding path program 1 times [2024-11-12 08:33:16,046 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 08:33:16,048 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [22272841] [2024-11-12 08:33:16,048 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 08:33:16,048 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 08:33:21,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 08:33:21,634 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-12 08:33:21,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 08:33:21,704 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-12 08:33:21,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 08:33:22,006 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-12 08:33:22,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 08:33:22,030 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-12 08:33:22,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 08:33:22,041 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-11-12 08:33:22,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 08:33:22,241 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-12 08:33:22,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 08:33:22,261 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2024-11-12 08:33:22,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 08:33:22,275 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-11-12 08:33:22,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 08:33:22,286 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2024-11-12 08:33:22,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 08:33:22,439 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-11-12 08:33:22,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 08:33:22,451 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-12 08:33:22,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 08:33:22,458 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2024-11-12 08:33:22,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 08:33:22,467 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2024-11-12 08:33:22,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 08:33:22,475 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-11-12 08:33:22,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 08:33:22,482 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2024-11-12 08:33:22,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 08:33:22,501 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-12 08:33:22,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 08:33:22,516 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2024-11-12 08:33:22,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 08:33:22,524 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2024-11-12 08:33:22,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 08:33:22,529 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2024-11-12 08:33:22,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 08:33:22,536 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2024-11-12 08:33:22,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 08:33:22,542 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2024-11-12 08:33:22,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 08:33:22,556 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2024-11-12 08:33:22,556 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 08:33:22,557 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [22272841] [2024-11-12 08:33:22,557 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [22272841] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 08:33:22,558 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 08:33:22,558 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-12 08:33:22,560 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1927668791] [2024-11-12 08:33:22,561 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 08:33:22,567 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-12 08:33:22,567 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 08:33:22,588 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-12 08:33:22,588 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-12 08:33:22,593 INFO L87 Difference]: Start difference. First operand has 186 states, 112 states have (on average 1.2053571428571428) internal successors, (135), 113 states have internal predecessors, (135), 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 9.2) internal successors, (46), 2 states have internal predecessors, (46), 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) [2024-11-12 08:33:26,704 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.09s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-12 08:33:31,093 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.38s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-12 08:33:35,455 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.36s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-12 08:33:39,547 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-12 08:33:39,547 INFO L93 Difference]: Finished difference Result 386 states and 555 transitions. [2024-11-12 08:33:39,551 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-12 08:33:39,556 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.2) internal successors, (46), 2 states have internal predecessors, (46), 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 129 [2024-11-12 08:33:39,556 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-12 08:33:39,565 INFO L225 Difference]: With dead ends: 386 [2024-11-12 08:33:39,565 INFO L226 Difference]: Without dead ends: 198 [2024-11-12 08:33:39,585 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 53 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2024-11-12 08:33:39,598 INFO L435 NwaCegarLoop]: 141 mSDtfsCounter, 199 mSDsluCounter, 67 mSDsCounter, 0 mSdLazyCounter, 170 mSolverCounterSat, 223 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 14.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 199 SdHoareTripleChecker+Valid, 208 SdHoareTripleChecker+Invalid, 396 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 223 IncrementalHoareTripleChecker+Valid, 170 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 16.3s IncrementalHoareTripleChecker+Time [2024-11-12 08:33:39,599 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [199 Valid, 208 Invalid, 396 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [223 Valid, 170 Invalid, 3 Unknown, 0 Unchecked, 16.3s Time] [2024-11-12 08:33:39,633 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 198 states. [2024-11-12 08:33:39,744 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 198 to 177. [2024-11-12 08:33:39,746 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 177 states, 105 states have (on average 1.161904761904762) internal successors, (122), 106 states have internal predecessors, (122), 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) [2024-11-12 08:33:39,748 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 177 states to 177 states and 230 transitions. [2024-11-12 08:33:39,751 INFO L78 Accepts]: Start accepts. Automaton has 177 states and 230 transitions. Word has length 129 [2024-11-12 08:33:39,752 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-12 08:33:39,752 INFO L471 AbstractCegarLoop]: Abstraction has 177 states and 230 transitions. [2024-11-12 08:33:39,752 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.2) internal successors, (46), 2 states have internal predecessors, (46), 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) [2024-11-12 08:33:39,752 INFO L276 IsEmpty]: Start isEmpty. Operand 177 states and 230 transitions. [2024-11-12 08:33:39,754 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2024-11-12 08:33:39,757 INFO L210 NwaCegarLoop]: Found error trace [2024-11-12 08:33:39,757 INFO L218 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, 1, 1, 1, 1, 1, 1] [2024-11-12 08:33:39,757 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-12 08:33:39,757 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-12 08:33:39,758 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 08:33:39,758 INFO L85 PathProgramCache]: Analyzing trace with hash -298153149, now seen corresponding path program 1 times [2024-11-12 08:33:39,758 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 08:33:39,758 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [373465967] [2024-11-12 08:33:39,758 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 08:33:39,758 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 08:33:43,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 08:33:44,441 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-12 08:33:44,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 08:33:44,480 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-12 08:33:44,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 08:33:44,826 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-12 08:33:44,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 08:33:44,854 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-12 08:33:44,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 08:33:44,861 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-11-12 08:33:44,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 08:33:45,145 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-12 08:33:45,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 08:33:45,525 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2024-11-12 08:33:45,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 08:33:45,537 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-11-12 08:33:45,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 08:33:45,547 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2024-11-12 08:33:45,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 08:33:45,755 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-11-12 08:33:45,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 08:33:45,768 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-12 08:33:45,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 08:33:45,773 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2024-11-12 08:33:45,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 08:33:45,778 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2024-11-12 08:33:45,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 08:33:45,783 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-11-12 08:33:45,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 08:33:45,788 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2024-11-12 08:33:45,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 08:33:45,798 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-12 08:33:45,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 08:33:45,811 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2024-11-12 08:33:45,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 08:33:45,816 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2024-11-12 08:33:45,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 08:33:45,820 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2024-11-12 08:33:45,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 08:33:45,825 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2024-11-12 08:33:45,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 08:33:45,829 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2024-11-12 08:33:45,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 08:33:45,834 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 208 trivial. 0 not checked. [2024-11-12 08:33:45,835 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 08:33:45,835 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [373465967] [2024-11-12 08:33:45,835 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [373465967] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-12 08:33:45,835 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [680391558] [2024-11-12 08:33:45,835 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 08:33:45,836 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-12 08:33:45,836 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-12 08:33:45,837 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) [2024-11-12 08:33:45,838 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-12 08:33:50,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 08:33:50,546 INFO L256 TraceCheckSpWp]: Trace formula consists of 4262 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-12 08:33:50,556 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-12 08:33:51,839 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 80 proven. 0 refuted. 0 times theorem prover too weak. 140 trivial. 0 not checked. [2024-11-12 08:33:51,839 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-12 08:33:51,839 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [680391558] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 08:33:51,839 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-12 08:33:51,839 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [8] total 12 [2024-11-12 08:33:51,840 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1708774585] [2024-11-12 08:33:51,840 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 08:33:51,841 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-12 08:33:51,841 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 08:33:51,842 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-12 08:33:51,845 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=106, Unknown=0, NotChecked=0, Total=132 [2024-11-12 08:33:51,845 INFO L87 Difference]: Start difference. First operand 177 states and 230 transitions. Second operand has 6 states, 6 states have (on average 8.666666666666666) internal successors, (52), 6 states have internal predecessors, (52), 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) [2024-11-12 08:33:55,419 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-12 08:33:55,420 INFO L93 Difference]: Finished difference Result 327 states and 431 transitions. [2024-11-12 08:33:55,420 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-12 08:33:55,421 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.666666666666666) internal successors, (52), 6 states have internal predecessors, (52), 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 129 [2024-11-12 08:33:55,421 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-12 08:33:55,425 INFO L225 Difference]: With dead ends: 327 [2024-11-12 08:33:55,426 INFO L226 Difference]: Without dead ends: 179 [2024-11-12 08:33:55,427 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 177 GetRequests, 164 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 2.7s TimeCoverageRelationStatistics Valid=39, Invalid=171, Unknown=0, NotChecked=0, Total=210 [2024-11-12 08:33:55,428 INFO L435 NwaCegarLoop]: 178 mSDtfsCounter, 242 mSDsluCounter, 480 mSDsCounter, 0 mSdLazyCounter, 177 mSolverCounterSat, 74 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 244 SdHoareTripleChecker+Valid, 658 SdHoareTripleChecker+Invalid, 251 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 74 IncrementalHoareTripleChecker+Valid, 177 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.9s IncrementalHoareTripleChecker+Time [2024-11-12 08:33:55,428 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [244 Valid, 658 Invalid, 251 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [74 Valid, 177 Invalid, 0 Unknown, 0 Unchecked, 2.9s Time] [2024-11-12 08:33:55,429 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 179 states. [2024-11-12 08:33:55,445 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 179 to 179. [2024-11-12 08:33:55,445 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 179 states, 106 states have (on average 1.1603773584905661) internal successors, (123), 108 states have internal predecessors, (123), 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) [2024-11-12 08:33:55,447 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 179 states to 179 states and 236 transitions. [2024-11-12 08:33:55,447 INFO L78 Accepts]: Start accepts. Automaton has 179 states and 236 transitions. Word has length 129 [2024-11-12 08:33:55,448 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-12 08:33:55,448 INFO L471 AbstractCegarLoop]: Abstraction has 179 states and 236 transitions. [2024-11-12 08:33:55,448 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.666666666666666) internal successors, (52), 6 states have internal predecessors, (52), 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) [2024-11-12 08:33:55,448 INFO L276 IsEmpty]: Start isEmpty. Operand 179 states and 236 transitions. [2024-11-12 08:33:55,450 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2024-11-12 08:33:55,450 INFO L210 NwaCegarLoop]: Found error trace [2024-11-12 08:33:55,451 INFO L218 NwaCegarLoop]: trace histogram [10, 10, 10, 5, 5, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 08:33:55,476 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-12 08:33:55,652 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 [2024-11-12 08:33:55,653 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-12 08:33:55,653 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 08:33:55,654 INFO L85 PathProgramCache]: Analyzing trace with hash -1469361281, now seen corresponding path program 1 times [2024-11-12 08:33:55,654 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 08:33:55,658 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [917264605] [2024-11-12 08:33:55,658 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 08:33:55,659 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 08:33:59,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 08:34:00,841 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-12 08:34:00,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 08:34:00,858 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-12 08:34:00,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 08:34:01,213 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-12 08:34:01,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 08:34:01,231 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-12 08:34:01,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 08:34:01,236 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-11-12 08:34:01,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 08:34:01,547 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-12 08:34:01,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 08:34:01,882 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-12 08:34:01,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 08:34:01,895 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-12 08:34:01,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 08:34:01,904 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-11-12 08:34:01,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 08:34:01,912 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2024-11-12 08:34:01,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 08:34:01,918 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-12 08:34:01,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 08:34:02,111 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-11-12 08:34:02,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 08:34:02,132 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-12 08:34:02,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 08:34:02,142 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2024-11-12 08:34:02,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 08:34:02,163 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-12 08:34:02,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 08:34:02,173 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-12 08:34:02,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 08:34:02,178 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2024-11-12 08:34:02,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 08:34:02,184 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2024-11-12 08:34:02,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 08:34:02,190 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2024-11-12 08:34:02,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 08:34:02,786 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2024-11-12 08:34:02,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 08:34:02,800 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2024-11-12 08:34:02,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 08:34:02,813 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2024-11-12 08:34:02,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 08:34:02,821 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2024-11-12 08:34:02,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 08:34:02,830 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2024-11-12 08:34:02,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 08:34:02,837 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2024-11-12 08:34:02,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 08:34:02,853 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 6 proven. 6 refuted. 0 times theorem prover too weak. 223 trivial. 0 not checked. [2024-11-12 08:34:02,853 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 08:34:02,853 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [917264605] [2024-11-12 08:34:02,853 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [917264605] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-12 08:34:02,853 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1828255875] [2024-11-12 08:34:02,854 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 08:34:02,854 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-12 08:34:02,854 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-12 08:34:02,868 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) [2024-11-12 08:34:02,876 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-12 08:34:07,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 08:34:07,729 INFO L256 TraceCheckSpWp]: Trace formula consists of 4516 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-12 08:34:07,741 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-12 08:34:09,927 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 126 proven. 0 refuted. 0 times theorem prover too weak. 109 trivial. 0 not checked. [2024-11-12 08:34:09,931 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-12 08:34:09,932 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1828255875] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 08:34:09,932 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-12 08:34:09,932 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [10] total 15 [2024-11-12 08:34:09,932 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [114536034] [2024-11-12 08:34:09,932 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 08:34:09,933 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-12 08:34:09,934 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 08:34:09,934 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-12 08:34:09,939 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=176, Unknown=0, NotChecked=0, Total=210 [2024-11-12 08:34:09,939 INFO L87 Difference]: Start difference. First operand 179 states and 236 transitions. Second operand has 7 states, 6 states have (on average 11.0) internal successors, (66), 7 states have internal predecessors, (66), 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) [2024-11-12 08:34:14,447 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-12 08:34:14,447 INFO L93 Difference]: Finished difference Result 289 states and 381 transitions. [2024-11-12 08:34:14,448 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-12 08:34:14,448 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 11.0) internal successors, (66), 7 states have internal predecessors, (66), 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 159 [2024-11-12 08:34:14,449 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-12 08:34:14,450 INFO L225 Difference]: With dead ends: 289 [2024-11-12 08:34:14,451 INFO L226 Difference]: Without dead ends: 179 [2024-11-12 08:34:14,451 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 219 GetRequests, 202 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 4.0s TimeCoverageRelationStatistics Valid=55, Invalid=287, Unknown=0, NotChecked=0, Total=342 [2024-11-12 08:34:14,452 INFO L435 NwaCegarLoop]: 175 mSDtfsCounter, 245 mSDsluCounter, 640 mSDsCounter, 0 mSdLazyCounter, 227 mSolverCounterSat, 71 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 247 SdHoareTripleChecker+Valid, 815 SdHoareTripleChecker+Invalid, 298 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 71 IncrementalHoareTripleChecker+Valid, 227 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.6s IncrementalHoareTripleChecker+Time [2024-11-12 08:34:14,452 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [247 Valid, 815 Invalid, 298 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [71 Valid, 227 Invalid, 0 Unknown, 0 Unchecked, 3.6s Time] [2024-11-12 08:34:14,453 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 179 states. [2024-11-12 08:34:14,467 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 179 to 179. [2024-11-12 08:34:14,468 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 179 states, 106 states have (on average 1.1603773584905661) internal successors, (123), 108 states have internal predecessors, (123), 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) [2024-11-12 08:34:14,469 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 179 states to 179 states and 233 transitions. [2024-11-12 08:34:14,470 INFO L78 Accepts]: Start accepts. Automaton has 179 states and 233 transitions. Word has length 159 [2024-11-12 08:34:14,470 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-12 08:34:14,471 INFO L471 AbstractCegarLoop]: Abstraction has 179 states and 233 transitions. [2024-11-12 08:34:14,471 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 11.0) internal successors, (66), 7 states have internal predecessors, (66), 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) [2024-11-12 08:34:14,471 INFO L276 IsEmpty]: Start isEmpty. Operand 179 states and 233 transitions. [2024-11-12 08:34:14,472 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 175 [2024-11-12 08:34:14,473 INFO L210 NwaCegarLoop]: Found error trace [2024-11-12 08:34:14,473 INFO L218 NwaCegarLoop]: trace histogram [10, 10, 10, 5, 5, 3, 3, 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, 1, 1, 1, 1, 1, 1] [2024-11-12 08:34:14,499 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-11-12 08:34:14,673 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 [2024-11-12 08:34:14,674 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-12 08:34:14,675 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 08:34:14,675 INFO L85 PathProgramCache]: Analyzing trace with hash 1115773871, now seen corresponding path program 2 times [2024-11-12 08:34:14,675 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 08:34:14,675 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1362129045] [2024-11-12 08:34:14,675 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 08:34:14,676 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 08:34:18,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 08:34:19,717 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-12 08:34:19,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 08:34:19,740 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-12 08:34:19,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 08:34:20,239 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-12 08:34:20,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 08:34:20,269 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-12 08:34:20,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 08:34:20,285 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-11-12 08:34:20,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 08:34:20,746 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-12 08:34:20,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 08:34:21,088 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-12 08:34:21,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 08:34:21,097 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-12 08:34:21,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 08:34:21,101 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-11-12 08:34:21,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 08:34:21,106 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2024-11-12 08:34:21,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 08:34:21,110 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-12 08:34:21,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 08:34:21,365 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-11-12 08:34:21,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 08:34:21,375 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-12 08:34:21,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 08:34:21,379 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2024-11-12 08:34:21,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 08:34:21,397 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-12 08:34:21,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 08:34:21,404 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-12 08:34:21,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 08:34:21,408 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2024-11-12 08:34:21,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 08:34:21,412 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2024-11-12 08:34:21,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 08:34:21,417 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2024-11-12 08:34:21,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 08:34:21,434 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-12 08:34:21,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 08:34:21,441 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-12 08:34:21,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 08:34:21,445 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2024-11-12 08:34:21,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 08:34:21,450 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2024-11-12 08:34:21,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 08:34:21,454 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2024-11-12 08:34:21,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 08:34:21,458 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2024-11-12 08:34:21,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 08:34:22,062 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2024-11-12 08:34:22,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 08:34:22,069 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 165 [2024-11-12 08:34:22,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 08:34:22,072 INFO L134 CoverageAnalysis]: Checked inductivity of 265 backedges. 9 proven. 3 refuted. 0 times theorem prover too weak. 253 trivial. 0 not checked. [2024-11-12 08:34:22,073 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 08:34:22,073 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1362129045] [2024-11-12 08:34:22,073 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1362129045] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-12 08:34:22,073 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1521663904] [2024-11-12 08:34:22,073 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-12 08:34:22,073 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-12 08:34:22,073 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-12 08:34:22,075 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) [2024-11-12 08:34:22,076 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process