./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_copy_harness.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version fca748b1 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_copy_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 d7c0f5b67426dc3769ace794e9c8c036d37ffa3960449e6b59343c653ea0c545 --- Real Ultimate output --- This is Ultimate 0.2.5-wip.dd.update-z3-fca748b-m [2024-11-20 09:50:46,555 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-20 09:50:46,622 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2024-11-20 09:50:46,626 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-20 09:50:46,627 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-20 09:50:46,646 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-20 09:50:46,647 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-20 09:50:46,647 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-20 09:50:46,648 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-20 09:50:46,648 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-20 09:50:46,648 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-20 09:50:46,649 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-20 09:50:46,649 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-20 09:50:46,650 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-20 09:50:46,650 INFO L153 SettingsManager]: * Use SBE=true [2024-11-20 09:50:46,650 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-20 09:50:46,651 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-20 09:50:46,651 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-20 09:50:46,651 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-20 09:50:46,652 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-20 09:50:46,652 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-20 09:50:46,652 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-20 09:50:46,653 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-20 09:50:46,653 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-20 09:50:46,653 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-20 09:50:46,654 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-20 09:50:46,654 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-20 09:50:46,654 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-20 09:50:46,654 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-20 09:50:46,655 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-20 09:50:46,655 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-20 09:50:46,655 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-20 09:50:46,655 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-20 09:50:46,655 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-20 09:50:46,656 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-20 09:50:46,656 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-20 09:50:46,657 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-20 09:50:46,657 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-20 09:50:46,657 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-20 09:50:46,657 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d7c0f5b67426dc3769ace794e9c8c036d37ffa3960449e6b59343c653ea0c545 [2024-11-20 09:50:46,939 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-20 09:50:46,959 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-20 09:50:46,964 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-20 09:50:46,966 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-20 09:50:46,966 INFO L274 PluginConnector]: CDTParser initialized [2024-11-20 09:50:46,968 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_array_list_copy_harness.i [2024-11-20 09:50:48,511 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-20 09:50:48,992 INFO L384 CDTParser]: Found 1 translation units. [2024-11-20 09:50:48,993 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_array_list_copy_harness.i [2024-11-20 09:50:49,029 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8ba2540f2/fadea93a99e749a88ee470c308f08676/FLAG57b596a1c [2024-11-20 09:50:49,049 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8ba2540f2/fadea93a99e749a88ee470c308f08676 [2024-11-20 09:50:49,052 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-20 09:50:49,055 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-20 09:50:49,056 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-20 09:50:49,057 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-20 09:50:49,063 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-20 09:50:49,065 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 09:50:49" (1/1) ... [2024-11-20 09:50:49,066 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@49c38e05 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:50:49, skipping insertion in model container [2024-11-20 09:50:49,066 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 09:50:49" (1/1) ... [2024-11-20 09:50:49,167 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-20 09:50:49,505 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_copy_harness.i[4493,4506] [2024-11-20 09:50:49,518 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_copy_harness.i[4553,4566] [2024-11-20 09:50:50,231 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-20 09:50:50,232 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-20 09:50:50,234 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-20 09:50:50,234 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-20 09:50:50,235 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-20 09:50:50,246 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-20 09:50:50,247 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-20 09:50:50,249 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-20 09:50:50,250 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-20 09:50:50,252 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-20 09:50:50,252 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-20 09:50:50,272 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-20 09:50:50,272 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-20 09:50:50,634 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-20 09:50:50,634 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-20 09:50:50,642 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-20 09:50:50,649 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-20 09:50:50,714 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-20 09:50:50,754 INFO L200 MainTranslator]: Completed pre-run [2024-11-20 09:50:50,766 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_copy_harness.i[4493,4506] [2024-11-20 09:50:50,766 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_copy_harness.i[4553,4566] [2024-11-20 09:50:50,834 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-20 09:50:50,835 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-20 09:50:50,835 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-20 09:50:50,835 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-20 09:50:50,836 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-20 09:50:50,842 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-20 09:50:50,842 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-20 09:50:50,843 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-20 09:50:50,843 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-20 09:50:50,844 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-20 09:50:50,845 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-20 09:50:50,845 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-20 09:50:50,845 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-20 09:50:50,908 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-20 09:50:50,909 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-20 09:50:50,910 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-20 09:50:50,914 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-20 09:50:50,918 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" : : "r"(pBuf) : "memory"); [7775-7786] [2024-11-20 09:50:50,952 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-20 09:50:51,195 INFO L204 MainTranslator]: Completed translation [2024-11-20 09:50:51,195 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:50:51 WrapperNode [2024-11-20 09:50:51,196 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-20 09:50:51,199 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-20 09:50:51,199 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-20 09:50:51,199 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-20 09:50:51,211 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:50:51" (1/1) ... [2024-11-20 09:50:51,285 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:50:51" (1/1) ... [2024-11-20 09:50:51,371 INFO L138 Inliner]: procedures = 680, calls = 1678, calls flagged for inlining = 52, calls inlined = 7, statements flattened = 718 [2024-11-20 09:50:51,372 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-20 09:50:51,373 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-20 09:50:51,373 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-20 09:50:51,373 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-20 09:50:51,386 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:50:51" (1/1) ... [2024-11-20 09:50:51,386 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:50:51" (1/1) ... [2024-11-20 09:50:51,397 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:50:51" (1/1) ... [2024-11-20 09:50:51,480 INFO L175 MemorySlicer]: Split 313 memory accesses to 5 slices as follows [238, 2, 57, 9, 7]. 76 percent of accesses are in the largest equivalence class. The 24 initializations are split as follows [6, 2, 10, 1, 5]. The 241 writes are split as follows [232, 0, 7, 1, 1]. [2024-11-20 09:50:51,483 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:50:51" (1/1) ... [2024-11-20 09:50:51,483 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:50:51" (1/1) ... [2024-11-20 09:50:51,542 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:50:51" (1/1) ... [2024-11-20 09:50:51,545 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:50:51" (1/1) ... [2024-11-20 09:50:51,551 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:50:51" (1/1) ... [2024-11-20 09:50:51,555 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:50:51" (1/1) ... [2024-11-20 09:50:51,571 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-20 09:50:51,576 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-20 09:50:51,576 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-20 09:50:51,576 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-20 09:50:51,577 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:50:51" (1/1) ... [2024-11-20 09:50:51,587 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-20 09:50:51,597 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-20 09:50:51,616 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) [2024-11-20 09:50:51,620 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 [2024-11-20 09:50:51,663 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-20 09:50:51,664 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_is_bounded [2024-11-20 09:50:51,664 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_is_bounded [2024-11-20 09:50:51,664 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_is_valid [2024-11-20 09:50:51,665 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_is_valid [2024-11-20 09:50:51,665 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_bool [2024-11-20 09:50:51,665 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_bool [2024-11-20 09:50:51,665 INFO L130 BoogieDeclarations]: Found specification of procedure aws_allocator_is_valid [2024-11-20 09:50:51,666 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_allocator_is_valid [2024-11-20 09:50:51,666 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#0 [2024-11-20 09:50:51,666 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#1 [2024-11-20 09:50:51,666 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#2 [2024-11-20 09:50:51,666 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#3 [2024-11-20 09:50:51,667 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#4 [2024-11-20 09:50:51,667 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-20 09:50:51,667 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-20 09:50:51,667 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-11-20 09:50:51,667 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-11-20 09:50:51,667 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2024-11-20 09:50:51,667 INFO L130 BoogieDeclarations]: Found specification of procedure aws_raise_error [2024-11-20 09:50:51,667 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_raise_error [2024-11-20 09:50:51,668 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-11-20 09:50:51,668 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-11-20 09:50:51,668 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-20 09:50:51,668 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-20 09:50:51,668 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2024-11-20 09:50:51,668 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2024-11-20 09:50:51,668 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2024-11-20 09:50:51,669 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2024-11-20 09:50:51,669 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#4 [2024-11-20 09:50:51,669 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy_impl [2024-11-20 09:50:51,669 INFO L138 BoogieDeclarations]: Found implementation of procedure memcpy_impl [2024-11-20 09:50:51,669 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-20 09:50:51,669 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-20 09:50:51,669 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2024-11-20 09:50:51,670 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2024-11-20 09:50:51,670 INFO L130 BoogieDeclarations]: Found specification of procedure aws_mul_size_checked [2024-11-20 09:50:51,670 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_mul_size_checked [2024-11-20 09:50:51,670 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#0 [2024-11-20 09:50:51,670 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#1 [2024-11-20 09:50:51,670 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#2 [2024-11-20 09:50:51,670 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#3 [2024-11-20 09:50:51,671 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#4 [2024-11-20 09:50:51,671 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_malloc [2024-11-20 09:50:51,671 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_malloc [2024-11-20 09:50:51,671 INFO L130 BoogieDeclarations]: Found specification of procedure aws_mem_release [2024-11-20 09:50:51,671 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_mem_release [2024-11-20 09:50:51,672 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-20 09:50:51,672 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-20 09:50:51,672 INFO L130 BoogieDeclarations]: Found specification of procedure my_memcpy [2024-11-20 09:50:51,672 INFO L138 BoogieDeclarations]: Found implementation of procedure my_memcpy [2024-11-20 09:50:51,672 INFO L130 BoogieDeclarations]: Found specification of procedure aws_mem_acquire [2024-11-20 09:50:51,672 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_mem_acquire [2024-11-20 09:50:51,672 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-20 09:50:51,672 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2024-11-20 09:50:51,672 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2024-11-20 09:50:51,672 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2024-11-20 09:50:51,672 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2024-11-20 09:50:51,672 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#4 [2024-11-20 09:50:51,673 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#0 [2024-11-20 09:50:51,673 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#1 [2024-11-20 09:50:51,673 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#2 [2024-11-20 09:50:51,673 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#3 [2024-11-20 09:50:51,673 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#4 [2024-11-20 09:50:51,673 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_allocator [2024-11-20 09:50:51,673 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_allocator [2024-11-20 09:50:51,673 INFO L130 BoogieDeclarations]: Found specification of procedure __CPROVER_overflow_mult [2024-11-20 09:50:51,673 INFO L138 BoogieDeclarations]: Found implementation of procedure __CPROVER_overflow_mult [2024-11-20 09:50:51,673 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-20 09:50:51,673 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-20 09:50:51,673 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-11-20 09:50:51,673 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-11-20 09:50:51,674 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2024-11-20 09:50:51,674 INFO L130 BoogieDeclarations]: Found specification of procedure ensure_array_list_has_allocated_data_member [2024-11-20 09:50:51,674 INFO L138 BoogieDeclarations]: Found implementation of procedure ensure_array_list_has_allocated_data_member [2024-11-20 09:50:51,674 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-20 09:50:51,674 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-20 09:50:51,674 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-11-20 09:50:51,675 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-11-20 09:50:51,675 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2024-11-20 09:50:51,989 INFO L238 CfgBuilder]: Building ICFG [2024-11-20 09:50:51,992 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-20 09:50:58,566 INFO L? ?]: Removed 94 outVars from TransFormulas that were not future-live. [2024-11-20 09:50:58,567 INFO L287 CfgBuilder]: Performing block encoding [2024-11-20 09:50:58,590 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-20 09:50:58,591 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-20 09:50:58,592 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 09:50:58 BoogieIcfgContainer [2024-11-20 09:50:58,592 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-20 09:50:58,595 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-20 09:50:58,595 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-20 09:50:58,599 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-20 09:50:58,599 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 09:50:49" (1/3) ... [2024-11-20 09:50:58,600 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@26b21c72 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 09:50:58, skipping insertion in model container [2024-11-20 09:50:58,600 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:50:51" (2/3) ... [2024-11-20 09:50:58,600 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@26b21c72 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 09:50:58, skipping insertion in model container [2024-11-20 09:50:58,600 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 09:50:58" (3/3) ... [2024-11-20 09:50:58,602 INFO L112 eAbstractionObserver]: Analyzing ICFG aws_array_list_copy_harness.i [2024-11-20 09:50:58,619 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-20 09:50:58,619 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-20 09:50:58,699 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-20 09:50:58,709 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;@44925f36, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-20 09:50:58,710 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-20 09:50:58,716 INFO L276 IsEmpty]: Start isEmpty. Operand has 209 states, 119 states have (on average 1.184873949579832) internal successors, (141), 120 states have internal predecessors, (141), 71 states have call successors, (71), 17 states have call predecessors, (71), 17 states have return successors, (71), 71 states have call predecessors, (71), 71 states have call successors, (71) [2024-11-20 09:50:58,739 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2024-11-20 09:50:58,740 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 09:50:58,741 INFO L215 NwaCegarLoop]: trace histogram [12, 12, 12, 5, 5, 5, 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] [2024-11-20 09:50:58,742 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 09:50:58,747 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 09:50:58,749 INFO L85 PathProgramCache]: Analyzing trace with hash -1329126664, now seen corresponding path program 1 times [2024-11-20 09:50:58,757 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 09:50:58,758 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2015997426] [2024-11-20 09:50:58,758 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 09:50:58,759 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 09:51:04,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:51:05,050 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-20 09:51:05,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:51:05,080 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-20 09:51:05,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:51:05,451 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-20 09:51:05,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:51:05,492 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-20 09:51:05,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:51:05,508 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-11-20 09:51:05,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:51:05,742 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-20 09:51:05,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:51:05,756 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2024-11-20 09:51:05,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:51:05,765 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-11-20 09:51:05,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:51:05,787 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-11-20 09:51:05,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:51:05,798 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-11-20 09:51:05,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:51:05,823 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-20 09:51:05,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:51:05,841 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-11-20 09:51:05,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:51:05,849 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2024-11-20 09:51:05,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:51:05,861 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-11-20 09:51:05,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:51:05,869 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-11-20 09:51:05,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:51:05,879 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-11-20 09:51:05,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:51:05,887 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2024-11-20 09:51:05,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:51:05,895 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2024-11-20 09:51:05,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:51:05,905 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2024-11-20 09:51:05,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:51:05,915 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2024-11-20 09:51:05,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:51:05,925 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2024-11-20 09:51:05,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:51:05,935 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2024-11-20 09:51:05,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:51:06,105 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2024-11-20 09:51:06,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:51:06,125 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-20 09:51:06,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:51:06,138 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2024-11-20 09:51:06,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:51:06,151 INFO L134 CoverageAnalysis]: Checked inductivity of 319 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 319 trivial. 0 not checked. [2024-11-20 09:51:06,152 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 09:51:06,152 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2015997426] [2024-11-20 09:51:06,153 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2015997426] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 09:51:06,153 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 09:51:06,153 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-20 09:51:06,155 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [149686510] [2024-11-20 09:51:06,156 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 09:51:06,160 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-20 09:51:06,160 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 09:51:06,179 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-20 09:51:06,180 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-20 09:51:06,183 INFO L87 Difference]: Start difference. First operand has 209 states, 119 states have (on average 1.184873949579832) internal successors, (141), 120 states have internal predecessors, (141), 71 states have call successors, (71), 17 states have call predecessors, (71), 17 states have return successors, (71), 71 states have call predecessors, (71), 71 states have call successors, (71) Second operand has 5 states, 5 states have (on average 7.8) internal successors, (39), 2 states have internal predecessors, (39), 2 states have call successors, (24), 5 states have call predecessors, (24), 2 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2024-11-20 09:51:10,282 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.08s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-20 09:51:14,709 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.42s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-20 09:51:19,117 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.41s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-20 09:51:25,674 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 09:51:25,674 INFO L93 Difference]: Finished difference Result 442 states and 648 transitions. [2024-11-20 09:51:25,677 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-20 09:51:25,678 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.8) internal successors, (39), 2 states have internal predecessors, (39), 2 states have call successors, (24), 5 states have call predecessors, (24), 2 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) Word has length 145 [2024-11-20 09:51:25,678 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 09:51:25,696 INFO L225 Difference]: With dead ends: 442 [2024-11-20 09:51:25,697 INFO L226 Difference]: Without dead ends: 232 [2024-11-20 09:51:25,705 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 68 GetRequests, 64 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-20 09:51:25,708 INFO L432 NwaCegarLoop]: 159 mSDtfsCounter, 215 mSDsluCounter, 80 mSDsCounter, 0 mSdLazyCounter, 336 mSolverCounterSat, 272 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 17.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 217 SdHoareTripleChecker+Valid, 239 SdHoareTripleChecker+Invalid, 611 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 272 IncrementalHoareTripleChecker+Valid, 336 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 18.8s IncrementalHoareTripleChecker+Time [2024-11-20 09:51:25,709 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [217 Valid, 239 Invalid, 611 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [272 Valid, 336 Invalid, 3 Unknown, 0 Unchecked, 18.8s Time] [2024-11-20 09:51:25,730 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 232 states. [2024-11-20 09:51:25,779 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 232 to 204. [2024-11-20 09:51:25,781 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 204 states, 115 states have (on average 1.173913043478261) internal successors, (135), 116 states have internal predecessors, (135), 71 states have call successors, (71), 17 states have call predecessors, (71), 17 states have return successors, (70), 70 states have call predecessors, (70), 70 states have call successors, (70) [2024-11-20 09:51:25,784 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 204 states to 204 states and 276 transitions. [2024-11-20 09:51:25,786 INFO L78 Accepts]: Start accepts. Automaton has 204 states and 276 transitions. Word has length 145 [2024-11-20 09:51:25,787 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 09:51:25,787 INFO L471 AbstractCegarLoop]: Abstraction has 204 states and 276 transitions. [2024-11-20 09:51:25,787 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.8) internal successors, (39), 2 states have internal predecessors, (39), 2 states have call successors, (24), 5 states have call predecessors, (24), 2 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2024-11-20 09:51:25,788 INFO L276 IsEmpty]: Start isEmpty. Operand 204 states and 276 transitions. [2024-11-20 09:51:25,793 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2024-11-20 09:51:25,793 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 09:51:25,797 INFO L215 NwaCegarLoop]: trace histogram [12, 12, 12, 5, 5, 5, 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] [2024-11-20 09:51:25,798 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-20 09:51:25,798 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 09:51:25,798 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 09:51:25,799 INFO L85 PathProgramCache]: Analyzing trace with hash -433130932, now seen corresponding path program 1 times [2024-11-20 09:51:25,799 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 09:51:25,799 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1779088617] [2024-11-20 09:51:25,799 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 09:51:25,799 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 09:51:30,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:51:31,400 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-20 09:51:31,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:51:31,414 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-20 09:51:31,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:51:31,842 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-20 09:51:31,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:51:32,005 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-20 09:51:32,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:51:32,023 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-11-20 09:51:32,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:51:32,391 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-20 09:51:32,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:51:32,415 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2024-11-20 09:51:32,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:51:32,434 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-11-20 09:51:32,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:51:32,455 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-11-20 09:51:32,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:51:32,465 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-11-20 09:51:32,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:51:32,484 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-20 09:51:32,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:51:32,491 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-11-20 09:51:32,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:51:32,498 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2024-11-20 09:51:32,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:51:32,508 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-11-20 09:51:32,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:51:32,517 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-11-20 09:51:32,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:51:32,527 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-11-20 09:51:32,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:51:32,539 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2024-11-20 09:51:32,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:51:32,548 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2024-11-20 09:51:32,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:51:32,558 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2024-11-20 09:51:32,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:51:32,568 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2024-11-20 09:51:32,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:51:32,581 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2024-11-20 09:51:32,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:51:32,589 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2024-11-20 09:51:32,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:51:32,856 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2024-11-20 09:51:32,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:51:32,878 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-20 09:51:32,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:51:32,887 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2024-11-20 09:51:32,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:51:32,896 INFO L134 CoverageAnalysis]: Checked inductivity of 319 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2024-11-20 09:51:32,896 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 09:51:32,896 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1779088617] [2024-11-20 09:51:32,897 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1779088617] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-20 09:51:32,897 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1219424984] [2024-11-20 09:51:32,897 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 09:51:32,897 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-20 09:51:32,898 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-20 09:51:32,901 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) [2024-11-20 09:51:32,903 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-20 09:51:37,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:51:37,912 INFO L255 TraceCheckSpWp]: Trace formula consists of 4363 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-20 09:51:37,927 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-20 09:51:37,999 INFO L134 CoverageAnalysis]: Checked inductivity of 319 backedges. 50 proven. 0 refuted. 0 times theorem prover too weak. 269 trivial. 0 not checked. [2024-11-20 09:51:37,999 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-20 09:51:38,000 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1219424984] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 09:51:38,000 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-20 09:51:38,000 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [6] total 6 [2024-11-20 09:51:38,001 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1845559845] [2024-11-20 09:51:38,005 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 09:51:38,006 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-20 09:51:38,006 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 09:51:38,007 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-20 09:51:38,007 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-20 09:51:38,007 INFO L87 Difference]: Start difference. First operand 204 states and 276 transitions. Second operand has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 3 states have internal predecessors, (47), 2 states have call successors, (24), 2 states have call predecessors, (24), 2 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2024-11-20 09:51:38,124 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 09:51:38,126 INFO L93 Difference]: Finished difference Result 403 states and 547 transitions. [2024-11-20 09:51:38,126 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-20 09:51:38,127 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 3 states have internal predecessors, (47), 2 states have call successors, (24), 2 states have call predecessors, (24), 2 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) Word has length 145 [2024-11-20 09:51:38,127 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 09:51:38,130 INFO L225 Difference]: With dead ends: 403 [2024-11-20 09:51:38,130 INFO L226 Difference]: Without dead ends: 205 [2024-11-20 09:51:38,132 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 198 GetRequests, 194 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-20 09:51:38,133 INFO L432 NwaCegarLoop]: 275 mSDtfsCounter, 0 mSDsluCounter, 271 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 546 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-20 09:51:38,133 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 546 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-20 09:51:38,136 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 205 states. [2024-11-20 09:51:38,157 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 205 to 205. [2024-11-20 09:51:38,158 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 205 states, 116 states have (on average 1.1724137931034482) internal successors, (136), 117 states have internal predecessors, (136), 71 states have call successors, (71), 17 states have call predecessors, (71), 17 states have return successors, (70), 70 states have call predecessors, (70), 70 states have call successors, (70) [2024-11-20 09:51:38,160 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 205 states to 205 states and 277 transitions. [2024-11-20 09:51:38,161 INFO L78 Accepts]: Start accepts. Automaton has 205 states and 277 transitions. Word has length 145 [2024-11-20 09:51:38,162 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 09:51:38,162 INFO L471 AbstractCegarLoop]: Abstraction has 205 states and 277 transitions. [2024-11-20 09:51:38,162 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 3 states have internal predecessors, (47), 2 states have call successors, (24), 2 states have call predecessors, (24), 2 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2024-11-20 09:51:38,162 INFO L276 IsEmpty]: Start isEmpty. Operand 205 states and 277 transitions. [2024-11-20 09:51:38,168 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2024-11-20 09:51:38,169 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 09:51:38,169 INFO L215 NwaCegarLoop]: trace histogram [12, 12, 12, 5, 5, 5, 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] [2024-11-20 09:51:38,193 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-20 09:51:38,370 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 [2024-11-20 09:51:38,370 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 09:51:38,371 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 09:51:38,371 INFO L85 PathProgramCache]: Analyzing trace with hash 995250632, now seen corresponding path program 1 times [2024-11-20 09:51:38,371 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 09:51:38,371 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1552408391] [2024-11-20 09:51:38,372 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 09:51:38,372 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 09:51:42,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:51:43,592 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-20 09:51:43,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:51:43,609 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-20 09:51:43,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:51:44,039 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-20 09:51:44,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:51:44,063 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-20 09:51:44,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:51:44,070 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-11-20 09:51:44,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:51:44,429 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-20 09:51:44,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:51:44,822 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2024-11-20 09:51:44,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:51:44,831 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-11-20 09:51:44,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:51:44,843 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-11-20 09:51:44,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:51:44,850 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-11-20 09:51:44,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:51:44,865 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-20 09:51:44,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:51:44,872 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-11-20 09:51:44,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:51:44,878 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2024-11-20 09:51:44,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:51:44,886 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-11-20 09:51:44,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:51:44,894 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-11-20 09:51:44,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:51:44,902 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-11-20 09:51:44,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:51:44,909 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2024-11-20 09:51:44,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:51:44,917 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2024-11-20 09:51:44,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:51:44,925 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2024-11-20 09:51:44,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:51:44,933 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2024-11-20 09:51:44,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:51:44,941 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2024-11-20 09:51:44,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:51:44,950 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2024-11-20 09:51:44,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:51:45,324 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2024-11-20 09:51:45,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:51:45,337 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-20 09:51:45,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:51:45,349 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2024-11-20 09:51:45,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:51:45,360 INFO L134 CoverageAnalysis]: Checked inductivity of 319 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 307 trivial. 0 not checked. [2024-11-20 09:51:45,361 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 09:51:45,361 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1552408391] [2024-11-20 09:51:45,361 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1552408391] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-20 09:51:45,361 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1798793857] [2024-11-20 09:51:45,361 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 09:51:45,361 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-20 09:51:45,361 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-20 09:51:45,365 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) [2024-11-20 09:51:45,367 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-20 09:51:50,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:51:50,463 INFO L255 TraceCheckSpWp]: Trace formula consists of 4369 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-20 09:51:50,471 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-20 09:51:51,681 INFO L134 CoverageAnalysis]: Checked inductivity of 319 backedges. 111 proven. 0 refuted. 0 times theorem prover too weak. 208 trivial. 0 not checked. [2024-11-20 09:51:51,681 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-20 09:51:51,682 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1798793857] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 09:51:51,682 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-20 09:51:51,682 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [8] total 12 [2024-11-20 09:51:51,682 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [912643027] [2024-11-20 09:51:51,682 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 09:51:51,683 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-20 09:51:51,683 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 09:51:51,684 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-20 09:51:51,684 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132 [2024-11-20 09:51:51,685 INFO L87 Difference]: Start difference. First operand 205 states and 277 transitions. Second operand has 6 states, 6 states have (on average 9.166666666666666) internal successors, (55), 6 states have internal predecessors, (55), 3 states have call successors, (26), 2 states have call predecessors, (26), 3 states have return successors, (25), 3 states have call predecessors, (25), 3 states have call successors, (25) [2024-11-20 09:51:55,676 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 09:51:55,676 INFO L93 Difference]: Finished difference Result 405 states and 558 transitions. [2024-11-20 09:51:55,677 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-20 09:51:55,677 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.166666666666666) internal successors, (55), 6 states have internal predecessors, (55), 3 states have call successors, (26), 2 states have call predecessors, (26), 3 states have return successors, (25), 3 states have call predecessors, (25), 3 states have call successors, (25) Word has length 145 [2024-11-20 09:51:55,677 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 09:51:55,680 INFO L225 Difference]: With dead ends: 405 [2024-11-20 09:51:55,680 INFO L226 Difference]: Without dead ends: 207 [2024-11-20 09:51:55,681 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 201 GetRequests, 188 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 2.9s TimeCoverageRelationStatistics Valid=38, Invalid=172, Unknown=0, NotChecked=0, Total=210 [2024-11-20 09:51:55,682 INFO L432 NwaCegarLoop]: 213 mSDtfsCounter, 282 mSDsluCounter, 566 mSDsCounter, 0 mSdLazyCounter, 220 mSolverCounterSat, 117 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 282 SdHoareTripleChecker+Valid, 779 SdHoareTripleChecker+Invalid, 337 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 117 IncrementalHoareTripleChecker+Valid, 220 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.4s IncrementalHoareTripleChecker+Time [2024-11-20 09:51:55,682 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [282 Valid, 779 Invalid, 337 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [117 Valid, 220 Invalid, 0 Unknown, 0 Unchecked, 3.4s Time] [2024-11-20 09:51:55,684 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 207 states. [2024-11-20 09:51:55,705 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 207 to 207. [2024-11-20 09:51:55,706 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 207 states, 117 states have (on average 1.170940170940171) internal successors, (137), 119 states have internal predecessors, (137), 71 states have call successors, (71), 17 states have call predecessors, (71), 18 states have return successors, (82), 70 states have call predecessors, (82), 70 states have call successors, (82) [2024-11-20 09:51:55,708 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 207 states to 207 states and 290 transitions. [2024-11-20 09:51:55,710 INFO L78 Accepts]: Start accepts. Automaton has 207 states and 290 transitions. Word has length 145 [2024-11-20 09:51:55,711 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 09:51:55,711 INFO L471 AbstractCegarLoop]: Abstraction has 207 states and 290 transitions. [2024-11-20 09:51:55,711 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.166666666666666) internal successors, (55), 6 states have internal predecessors, (55), 3 states have call successors, (26), 2 states have call predecessors, (26), 3 states have return successors, (25), 3 states have call predecessors, (25), 3 states have call successors, (25) [2024-11-20 09:51:55,711 INFO L276 IsEmpty]: Start isEmpty. Operand 207 states and 290 transitions. [2024-11-20 09:51:55,713 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2024-11-20 09:51:55,713 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 09:51:55,714 INFO L215 NwaCegarLoop]: trace histogram [12, 12, 12, 5, 5, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 09:51:55,736 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-11-20 09:51:55,914 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 [2024-11-20 09:51:55,915 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 09:51:55,915 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 09:51:55,915 INFO L85 PathProgramCache]: Analyzing trace with hash -139108393, now seen corresponding path program 1 times [2024-11-20 09:51:55,916 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 09:51:55,916 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1059159016] [2024-11-20 09:51:55,916 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 09:51:55,916 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 09:51:59,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:52:00,788 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-20 09:52:00,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:52:00,803 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-20 09:52:00,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:52:01,194 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-20 09:52:01,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:52:01,218 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-20 09:52:01,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:52:01,225 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-11-20 09:52:01,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:52:01,530 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-20 09:52:01,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:52:01,854 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-20 09:52:01,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:52:01,867 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-20 09:52:01,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:52:01,876 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-11-20 09:52:01,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:52:01,886 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2024-11-20 09:52:01,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:52:01,898 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-20 09:52:01,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:52:01,908 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-20 09:52:01,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:52:01,924 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-20 09:52:01,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:52:01,930 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-11-20 09:52:01,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:52:01,936 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2024-11-20 09:52:01,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:52:02,315 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-20 09:52:02,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:52:02,323 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2024-11-20 09:52:02,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:52:02,330 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2024-11-20 09:52:02,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:52:02,336 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2024-11-20 09:52:02,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:52:02,343 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2024-11-20 09:52:02,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:52:02,349 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2024-11-20 09:52:02,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:52:02,355 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2024-11-20 09:52:02,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:52:02,361 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2024-11-20 09:52:02,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:52:02,368 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2024-11-20 09:52:02,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:52:02,374 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2024-11-20 09:52:02,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:52:02,386 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-20 09:52:02,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:52:02,394 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2024-11-20 09:52:02,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:52:02,401 INFO L134 CoverageAnalysis]: Checked inductivity of 328 backedges. 3 proven. 9 refuted. 0 times theorem prover too weak. 316 trivial. 0 not checked. [2024-11-20 09:52:02,401 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 09:52:02,402 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1059159016] [2024-11-20 09:52:02,402 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1059159016] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-20 09:52:02,402 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [748452816] [2024-11-20 09:52:02,402 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 09:52:02,402 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-20 09:52:02,402 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-20 09:52:02,405 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) [2024-11-20 09:52:02,406 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-20 09:52:07,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:52:07,538 INFO L255 TraceCheckSpWp]: Trace formula consists of 4496 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-20 09:52:07,544 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-20 09:52:08,774 INFO L134 CoverageAnalysis]: Checked inductivity of 328 backedges. 176 proven. 0 refuted. 0 times theorem prover too weak. 152 trivial. 0 not checked. [2024-11-20 09:52:08,775 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-20 09:52:08,775 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [748452816] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 09:52:08,775 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-20 09:52:08,775 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [8] total 12 [2024-11-20 09:52:08,775 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [235914208] [2024-11-20 09:52:08,775 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 09:52:08,776 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-20 09:52:08,776 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 09:52:08,777 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-20 09:52:08,777 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132 [2024-11-20 09:52:08,777 INFO L87 Difference]: Start difference. First operand 207 states and 290 transitions. Second operand has 6 states, 6 states have (on average 9.833333333333334) internal successors, (59), 6 states have internal predecessors, (59), 3 states have call successors, (26), 2 states have call predecessors, (26), 3 states have return successors, (25), 3 states have call predecessors, (25), 3 states have call successors, (25)