./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/aws-c-common/aws_hash_iter_begin_harness.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version e2fb8bed Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/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_1.6.800.v20240513-1750.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_hash_iter_begin_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 421f397ecb374fcc22201279d98969d7d1e8c35a1593d9d42549f7d3b356eac0 --- Real Ultimate output --- This is Ultimate 0.3.0-?-e2fb8be-m [2025-03-08 18:03:37,805 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-03-08 18:03:37,898 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2025-03-08 18:03:37,901 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-03-08 18:03:37,904 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-03-08 18:03:37,942 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-03-08 18:03:37,942 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-03-08 18:03:37,942 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-03-08 18:03:37,943 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-03-08 18:03:37,943 INFO L153 SettingsManager]: * Use memory slicer=true [2025-03-08 18:03:37,943 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-03-08 18:03:37,943 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-03-08 18:03:37,943 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-03-08 18:03:37,947 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-03-08 18:03:37,947 INFO L153 SettingsManager]: * Use SBE=true [2025-03-08 18:03:37,948 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-03-08 18:03:37,948 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-03-08 18:03:37,948 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-03-08 18:03:37,948 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-03-08 18:03:37,948 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-03-08 18:03:37,948 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-03-08 18:03:37,948 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-03-08 18:03:37,948 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-03-08 18:03:37,948 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-03-08 18:03:37,948 INFO L153 SettingsManager]: * Use constant arrays=true [2025-03-08 18:03:37,948 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-03-08 18:03:37,948 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-03-08 18:03:37,948 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-03-08 18:03:37,948 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-03-08 18:03:37,948 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-08 18:03:37,950 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-03-08 18:03:37,950 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-03-08 18:03:37,950 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-03-08 18:03:37,950 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-03-08 18:03:37,950 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-03-08 18:03:37,950 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-03-08 18:03:37,950 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-03-08 18:03:37,950 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-03-08 18:03:37,950 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-03-08 18:03:37,950 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-03-08 18:03:37,950 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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 -> 421f397ecb374fcc22201279d98969d7d1e8c35a1593d9d42549f7d3b356eac0 [2025-03-08 18:03:38,341 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-03-08 18:03:38,353 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-03-08 18:03:38,359 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-03-08 18:03:38,360 INFO L270 PluginConnector]: Initializing CDTParser... [2025-03-08 18:03:38,360 INFO L274 PluginConnector]: CDTParser initialized [2025-03-08 18:03:38,361 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/aws-c-common/aws_hash_iter_begin_harness.i [2025-03-08 18:03:39,849 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/801239f80/cdf29e222c324543a2f35136364e3ade/FLAG4c8536a4d [2025-03-08 18:03:40,483 INFO L384 CDTParser]: Found 1 translation units. [2025-03-08 18:03:40,487 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_hash_iter_begin_harness.i [2025-03-08 18:03:40,525 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/801239f80/cdf29e222c324543a2f35136364e3ade/FLAG4c8536a4d [2025-03-08 18:03:40,911 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/801239f80/cdf29e222c324543a2f35136364e3ade [2025-03-08 18:03:40,913 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-03-08 18:03:40,916 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-03-08 18:03:40,918 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-03-08 18:03:40,918 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-03-08 18:03:40,921 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-03-08 18:03:40,926 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.03 06:03:40" (1/1) ... [2025-03-08 18:03:40,927 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2405bdc0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 06:03:40, skipping insertion in model container [2025-03-08 18:03:40,928 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.03 06:03:40" (1/1) ... [2025-03-08 18:03:41,051 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-03-08 18:03:41,427 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_hash_iter_begin_harness.i[4493,4506] [2025-03-08 18:03:41,438 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_hash_iter_begin_harness.i[4553,4566] [2025-03-08 18:03:42,511 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 18:03:42,514 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 18:03:42,514 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 18:03:42,515 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 18:03:42,515 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 18:03:42,523 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 18:03:42,525 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 18:03:42,526 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 18:03:42,526 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 18:03:42,530 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 18:03:42,532 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 18:03:42,533 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 18:03:42,533 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 18:03:43,630 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 18:03:43,630 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 18:03:43,683 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 18:03:43,691 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 18:03:43,706 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 18:03:43,707 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 18:03:43,723 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 18:03:43,726 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 18:03:43,726 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 18:03:43,726 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 18:03:43,726 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 18:03:43,727 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 18:03:43,727 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 18:03:43,827 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_hash_iter_begin_harness.i[227550,227563] [2025-03-08 18:03:43,828 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-08 18:03:43,854 INFO L200 MainTranslator]: Completed pre-run [2025-03-08 18:03:43,866 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_hash_iter_begin_harness.i[4493,4506] [2025-03-08 18:03:43,872 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_hash_iter_begin_harness.i[4553,4566] [2025-03-08 18:03:43,919 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 18:03:43,919 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 18:03:43,923 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 18:03:43,923 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 18:03:43,923 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 18:03:43,934 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 18:03:43,934 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 18:03:43,934 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 18:03:43,935 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 18:03:43,935 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 18:03:43,935 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 18:03:43,935 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 18:03:43,936 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 18:03:44,001 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" : : "r"(pBuf) : "memory"); [7558-7569] [2025-03-08 18:03:44,056 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 18:03:44,056 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 18:03:44,060 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 18:03:44,061 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 18:03:44,062 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 18:03:44,062 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 18:03:44,070 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 18:03:44,070 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 18:03:44,071 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 18:03:44,071 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 18:03:44,071 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 18:03:44,071 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 18:03:44,071 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 18:03:44,085 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_hash_iter_begin_harness.i[227550,227563] [2025-03-08 18:03:44,086 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-08 18:03:44,305 INFO L204 MainTranslator]: Completed translation [2025-03-08 18:03:44,306 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 06:03:44 WrapperNode [2025-03-08 18:03:44,307 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-03-08 18:03:44,308 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-03-08 18:03:44,308 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-03-08 18:03:44,308 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-03-08 18:03:44,314 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 06:03:44" (1/1) ... [2025-03-08 18:03:44,416 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 06:03:44" (1/1) ... [2025-03-08 18:03:44,531 INFO L138 Inliner]: procedures = 763, calls = 2441, calls flagged for inlining = 68, calls inlined = 11, statements flattened = 623 [2025-03-08 18:03:44,532 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-03-08 18:03:44,532 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-03-08 18:03:44,533 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-03-08 18:03:44,533 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-03-08 18:03:44,539 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 06:03:44" (1/1) ... [2025-03-08 18:03:44,539 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 06:03:44" (1/1) ... [2025-03-08 18:03:44,548 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 06:03:44" (1/1) ... [2025-03-08 18:03:44,616 INFO L175 MemorySlicer]: Split 339 memory accesses to 8 slices as follows [2, 3, 247, 6, 51, 23, 2, 5]. 73 percent of accesses are in the largest equivalence class. The 22 initializations are split as follows [2, 0, 6, 0, 9, 0, 0, 5]. The 249 writes are split as follows [0, 1, 233, 2, 11, 1, 1, 0]. [2025-03-08 18:03:44,617 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 06:03:44" (1/1) ... [2025-03-08 18:03:44,617 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 06:03:44" (1/1) ... [2025-03-08 18:03:44,653 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 06:03:44" (1/1) ... [2025-03-08 18:03:44,656 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 06:03:44" (1/1) ... [2025-03-08 18:03:44,663 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 06:03:44" (1/1) ... [2025-03-08 18:03:44,666 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 06:03:44" (1/1) ... [2025-03-08 18:03:44,678 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-03-08 18:03:44,679 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-03-08 18:03:44,679 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-03-08 18:03:44,679 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-03-08 18:03:44,680 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 06:03:44" (1/1) ... [2025-03-08 18:03:44,684 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-08 18:03:44,696 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-08 18:03:44,716 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) [2025-03-08 18:03:44,726 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 [2025-03-08 18:03:44,762 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#0 [2025-03-08 18:03:44,762 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#1 [2025-03-08 18:03:44,762 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#2 [2025-03-08 18:03:44,762 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#3 [2025-03-08 18:03:44,762 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#4 [2025-03-08 18:03:44,762 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#5 [2025-03-08 18:03:44,762 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#6 [2025-03-08 18:03:44,762 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#7 [2025-03-08 18:03:44,763 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2025-03-08 18:03:44,763 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#0 [2025-03-08 18:03:44,763 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#1 [2025-03-08 18:03:44,763 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#2 [2025-03-08 18:03:44,763 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#3 [2025-03-08 18:03:44,763 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#4 [2025-03-08 18:03:44,763 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#5 [2025-03-08 18:03:44,763 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#6 [2025-03-08 18:03:44,763 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#7 [2025-03-08 18:03:44,763 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2025-03-08 18:03:44,763 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2025-03-08 18:03:44,763 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2025-03-08 18:03:44,763 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2025-03-08 18:03:44,763 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2025-03-08 18:03:44,763 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2025-03-08 18:03:44,763 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#6 [2025-03-08 18:03:44,763 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#7 [2025-03-08 18:03:44,763 INFO L130 BoogieDeclarations]: Found specification of procedure aws_raise_error [2025-03-08 18:03:44,763 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_raise_error [2025-03-08 18:03:44,763 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2025-03-08 18:03:44,763 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2025-03-08 18:03:44,763 INFO L130 BoogieDeclarations]: Found specification of procedure aws_hash_iter_begin [2025-03-08 18:03:44,763 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_hash_iter_begin [2025-03-08 18:03:44,763 INFO L130 BoogieDeclarations]: Found specification of procedure hash_table_state_is_valid [2025-03-08 18:03:44,763 INFO L138 BoogieDeclarations]: Found implementation of procedure hash_table_state_is_valid [2025-03-08 18:03:44,763 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2025-03-08 18:03:44,763 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-03-08 18:03:44,763 INFO L130 BoogieDeclarations]: Found specification of procedure hash_table_state_required_bytes [2025-03-08 18:03:44,763 INFO L138 BoogieDeclarations]: Found implementation of procedure hash_table_state_required_bytes [2025-03-08 18:03:44,763 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2025-03-08 18:03:44,763 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2025-03-08 18:03:44,763 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2025-03-08 18:03:44,763 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2025-03-08 18:03:44,763 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#4 [2025-03-08 18:03:44,763 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#5 [2025-03-08 18:03:44,763 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#6 [2025-03-08 18:03:44,764 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#7 [2025-03-08 18:03:44,764 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-03-08 18:03:44,764 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-03-08 18:03:44,764 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2025-03-08 18:03:44,764 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2025-03-08 18:03:44,764 INFO L130 BoogieDeclarations]: Found specification of procedure aws_mul_size_checked [2025-03-08 18:03:44,764 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_mul_size_checked [2025-03-08 18:03:44,764 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#0 [2025-03-08 18:03:44,764 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#1 [2025-03-08 18:03:44,764 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#2 [2025-03-08 18:03:44,764 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#3 [2025-03-08 18:03:44,764 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#4 [2025-03-08 18:03:44,764 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#5 [2025-03-08 18:03:44,764 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#6 [2025-03-08 18:03:44,764 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#7 [2025-03-08 18:03:44,764 INFO L130 BoogieDeclarations]: Found specification of procedure s_get_next_element [2025-03-08 18:03:44,764 INFO L138 BoogieDeclarations]: Found implementation of procedure s_get_next_element [2025-03-08 18:03:44,764 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#0 [2025-03-08 18:03:44,764 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#1 [2025-03-08 18:03:44,764 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#2 [2025-03-08 18:03:44,764 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#3 [2025-03-08 18:03:44,764 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#4 [2025-03-08 18:03:44,764 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#5 [2025-03-08 18:03:44,764 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#6 [2025-03-08 18:03:44,764 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#7 [2025-03-08 18:03:44,764 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#0 [2025-03-08 18:03:44,764 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#1 [2025-03-08 18:03:44,764 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#2 [2025-03-08 18:03:44,780 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#3 [2025-03-08 18:03:44,781 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#4 [2025-03-08 18:03:44,781 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#5 [2025-03-08 18:03:44,781 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#6 [2025-03-08 18:03:44,784 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#7 [2025-03-08 18:03:44,784 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2025-03-08 18:03:44,784 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2025-03-08 18:03:44,785 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2025-03-08 18:03:44,785 INFO L130 BoogieDeclarations]: Found specification of procedure aws_hash_iter_is_valid [2025-03-08 18:03:44,785 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_hash_iter_is_valid [2025-03-08 18:03:44,785 INFO L130 BoogieDeclarations]: Found specification of procedure __CPROVER_overflow_plus [2025-03-08 18:03:44,788 INFO L138 BoogieDeclarations]: Found implementation of procedure __CPROVER_overflow_plus [2025-03-08 18:03:44,789 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2025-03-08 18:03:44,789 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2025-03-08 18:03:44,789 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2025-03-08 18:03:44,789 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2025-03-08 18:03:44,789 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#4 [2025-03-08 18:03:44,789 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#5 [2025-03-08 18:03:44,789 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#6 [2025-03-08 18:03:44,789 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#7 [2025-03-08 18:03:44,792 INFO L130 BoogieDeclarations]: Found specification of procedure aws_hash_table_is_valid [2025-03-08 18:03:44,793 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_hash_table_is_valid [2025-03-08 18:03:44,793 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#0 [2025-03-08 18:03:44,793 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#1 [2025-03-08 18:03:44,793 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#2 [2025-03-08 18:03:44,793 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#3 [2025-03-08 18:03:44,793 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#4 [2025-03-08 18:03:44,793 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#5 [2025-03-08 18:03:44,793 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#6 [2025-03-08 18:03:44,793 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#7 [2025-03-08 18:03:44,793 INFO L130 BoogieDeclarations]: Found specification of procedure __CPROVER_overflow_mult [2025-03-08 18:03:44,793 INFO L138 BoogieDeclarations]: Found implementation of procedure __CPROVER_overflow_mult [2025-03-08 18:03:44,793 INFO L130 BoogieDeclarations]: Found specification of procedure aws_add_size_checked [2025-03-08 18:03:44,793 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_add_size_checked [2025-03-08 18:03:44,793 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_uint64_t [2025-03-08 18:03:44,793 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_uint64_t [2025-03-08 18:03:44,793 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2025-03-08 18:03:44,793 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2025-03-08 18:03:44,793 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2025-03-08 18:03:44,793 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2025-03-08 18:03:44,793 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2025-03-08 18:03:44,793 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2025-03-08 18:03:44,793 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#6 [2025-03-08 18:03:44,793 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#7 [2025-03-08 18:03:44,794 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-03-08 18:03:44,794 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2025-03-08 18:03:44,794 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2025-03-08 18:03:44,794 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2025-03-08 18:03:44,794 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2025-03-08 18:03:44,794 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2025-03-08 18:03:44,794 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#6 [2025-03-08 18:03:44,794 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#7 [2025-03-08 18:03:44,794 INFO L130 BoogieDeclarations]: Found specification of procedure aws_is_power_of_two [2025-03-08 18:03:44,794 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_is_power_of_two [2025-03-08 18:03:45,136 INFO L256 CfgBuilder]: Building ICFG [2025-03-08 18:03:45,142 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2025-03-08 18:03:45,172 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L6947: havoc #t~malloc588.base, #t~malloc588.offset; [2025-03-08 18:03:45,208 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L2590: havoc #t~ret57#1; [2025-03-08 18:03:45,210 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L266: havoc #t~nondet9; [2025-03-08 18:03:45,360 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L9825-1: assume false; [2025-03-08 18:03:45,360 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L9825-1: assume !false; [2025-03-08 18:03:45,360 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L9825-2: havoc #t~mem1400.base, #t~mem1400.offset;havoc #t~mem1401.base, #t~mem1401.offset;havoc #t~mem1402.base, #t~mem1402.offset;havoc #t~mem1403;havoc #t~mem1404;havoc #t~mem1405;havoc #t~mem1406;havoc #t~mem1407.base, #t~mem1407.offset;havoc #t~mem1408.base, #t~mem1408.offset; [2025-03-08 18:03:45,485 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L10103: call ULTIMATE.dealloc(~#elemsize~0.base, ~#elemsize~0.offset);havoc ~#elemsize~0.base, ~#elemsize~0.offset; [2025-03-08 18:03:45,539 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L9990: havoc #t~mem1489.base, #t~mem1489.offset;havoc #t~short1490;havoc #t~mem1491.base, #t~mem1491.offset;havoc #t~ret1492;havoc #t~short1493; [2025-03-08 18:03:45,562 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L2630: havoc #t~bitwise60;havoc #t~short61; [2025-03-08 18:03:45,574 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L2617: havoc #t~ret59#1; [2025-03-08 18:03:51,115 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L263: havoc nondet_size_t_#t~nondet6#1; [2025-03-08 18:03:51,180 INFO L? ?]: Removed 191 outVars from TransFormulas that were not future-live. [2025-03-08 18:03:51,180 INFO L307 CfgBuilder]: Performing block encoding [2025-03-08 18:03:51,198 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-03-08 18:03:51,199 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2025-03-08 18:03:51,199 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.03 06:03:51 BoogieIcfgContainer [2025-03-08 18:03:51,199 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-03-08 18:03:51,204 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-03-08 18:03:51,204 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-03-08 18:03:51,208 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-03-08 18:03:51,208 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.03 06:03:40" (1/3) ... [2025-03-08 18:03:51,208 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@42a3d295 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.03 06:03:51, skipping insertion in model container [2025-03-08 18:03:51,209 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 06:03:44" (2/3) ... [2025-03-08 18:03:51,209 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@42a3d295 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.03 06:03:51, skipping insertion in model container [2025-03-08 18:03:51,209 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.03 06:03:51" (3/3) ... [2025-03-08 18:03:51,210 INFO L128 eAbstractionObserver]: Analyzing ICFG aws_hash_iter_begin_harness.i [2025-03-08 18:03:51,222 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-03-08 18:03:51,226 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG aws_hash_iter_begin_harness.i that has 25 procedures, 203 locations, 1 initial locations, 11 loop locations, and 1 error locations. [2025-03-08 18:03:51,280 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-03-08 18:03:51,291 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;@305c3967, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-03-08 18:03:51,292 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2025-03-08 18:03:51,296 INFO L276 IsEmpty]: Start isEmpty. Operand has 175 states, 118 states have (on average 1.2542372881355932) internal successors, (148), 117 states have internal predecessors, (148), 40 states have call successors, (40), 17 states have call predecessors, (40), 17 states have return successors, (40), 40 states have call predecessors, (40), 40 states have call successors, (40) [2025-03-08 18:03:51,306 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2025-03-08 18:03:51,307 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 18:03:51,309 INFO L218 NwaCegarLoop]: trace histogram [9, 9, 9, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-08 18:03:51,309 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-08 18:03:51,313 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 18:03:51,313 INFO L85 PathProgramCache]: Analyzing trace with hash 42316401, now seen corresponding path program 1 times [2025-03-08 18:03:51,320 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 18:03:51,320 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2098487554] [2025-03-08 18:03:51,320 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 18:03:51,321 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 18:03:55,616 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 149 statements into 1 equivalence classes. [2025-03-08 18:03:55,869 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 149 of 149 statements. [2025-03-08 18:03:55,869 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 18:03:55,869 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 18:03:56,280 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 164 trivial. 0 not checked. [2025-03-08 18:03:56,280 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 18:03:56,281 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2098487554] [2025-03-08 18:03:56,281 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2098487554] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-08 18:03:56,281 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1441907035] [2025-03-08 18:03:56,281 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 18:03:56,281 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-08 18:03:56,282 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-08 18:03:56,284 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) [2025-03-08 18:03:56,285 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2025-03-08 18:04:00,651 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 149 statements into 1 equivalence classes. [2025-03-08 18:04:01,103 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 149 of 149 statements. [2025-03-08 18:04:01,103 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 18:04:01,103 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 18:04:01,122 INFO L256 TraceCheckSpWp]: Trace formula consists of 4547 conjuncts, 1 conjuncts are in the unsatisfiable core [2025-03-08 18:04:01,131 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-08 18:04:01,150 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 164 trivial. 0 not checked. [2025-03-08 18:04:01,153 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-08 18:04:01,153 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1441907035] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 18:04:01,153 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-03-08 18:04:01,154 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2 [2025-03-08 18:04:01,156 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1855372386] [2025-03-08 18:04:01,156 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 18:04:01,159 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2025-03-08 18:04:01,159 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 18:04:01,176 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2025-03-08 18:04:01,181 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-03-08 18:04:01,183 INFO L87 Difference]: Start difference. First operand has 175 states, 118 states have (on average 1.2542372881355932) internal successors, (148), 117 states have internal predecessors, (148), 40 states have call successors, (40), 17 states have call predecessors, (40), 17 states have return successors, (40), 40 states have call predecessors, (40), 40 states have call successors, (40) Second operand has 2 states, 2 states have (on average 29.0) internal successors, (58), 2 states have internal predecessors, (58), 2 states have call successors, (23), 2 states have call predecessors, (23), 2 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2025-03-08 18:04:01,241 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 18:04:01,242 INFO L93 Difference]: Finished difference Result 341 states and 476 transitions. [2025-03-08 18:04:01,246 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-03-08 18:04:01,248 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 29.0) internal successors, (58), 2 states have internal predecessors, (58), 2 states have call successors, (23), 2 states have call predecessors, (23), 2 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) Word has length 149 [2025-03-08 18:04:01,248 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 18:04:01,255 INFO L225 Difference]: With dead ends: 341 [2025-03-08 18:04:01,256 INFO L226 Difference]: Without dead ends: 168 [2025-03-08 18:04:01,260 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 150 GetRequests, 150 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-03-08 18:04:01,263 INFO L435 NwaCegarLoop]: 220 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 220 SdHoareTripleChecker+Invalid, 1 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-03-08 18:04:01,264 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 220 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-08 18:04:01,275 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 168 states. [2025-03-08 18:04:01,298 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 168 to 168. [2025-03-08 18:04:01,299 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 168 states, 110 states have (on average 1.2363636363636363) internal successors, (136), 111 states have internal predecessors, (136), 40 states have call successors, (40), 17 states have call predecessors, (40), 17 states have return successors, (39), 39 states have call predecessors, (39), 39 states have call successors, (39) [2025-03-08 18:04:01,304 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 168 states to 168 states and 215 transitions. [2025-03-08 18:04:01,308 INFO L78 Accepts]: Start accepts. Automaton has 168 states and 215 transitions. Word has length 149 [2025-03-08 18:04:01,308 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 18:04:01,308 INFO L471 AbstractCegarLoop]: Abstraction has 168 states and 215 transitions. [2025-03-08 18:04:01,308 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 29.0) internal successors, (58), 2 states have internal predecessors, (58), 2 states have call successors, (23), 2 states have call predecessors, (23), 2 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2025-03-08 18:04:01,308 INFO L276 IsEmpty]: Start isEmpty. Operand 168 states and 215 transitions. [2025-03-08 18:04:01,313 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2025-03-08 18:04:01,316 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 18:04:01,316 INFO L218 NwaCegarLoop]: trace histogram [9, 9, 9, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-08 18:04:01,333 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2025-03-08 18:04:01,517 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2025-03-08 18:04:01,520 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-08 18:04:01,521 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 18:04:01,521 INFO L85 PathProgramCache]: Analyzing trace with hash 1583328334, now seen corresponding path program 1 times [2025-03-08 18:04:01,521 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 18:04:01,521 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1630491842] [2025-03-08 18:04:01,521 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 18:04:01,521 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 18:04:05,352 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 155 statements into 1 equivalence classes. [2025-03-08 18:04:05,500 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 155 of 155 statements. [2025-03-08 18:04:05,500 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 18:04:05,500 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 18:04:06,544 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 173 trivial. 0 not checked. [2025-03-08 18:04:06,546 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 18:04:06,546 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1630491842] [2025-03-08 18:04:06,547 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1630491842] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-08 18:04:06,547 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2075580459] [2025-03-08 18:04:06,547 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 18:04:06,547 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-08 18:04:06,547 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-08 18:04:06,550 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) [2025-03-08 18:04:06,550 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2025-03-08 18:04:10,581 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 155 statements into 1 equivalence classes. [2025-03-08 18:04:10,996 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 155 of 155 statements. [2025-03-08 18:04:10,996 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 18:04:10,996 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 18:04:11,016 INFO L256 TraceCheckSpWp]: Trace formula consists of 4572 conjuncts, 7 conjuncts are in the unsatisfiable core [2025-03-08 18:04:11,024 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-08 18:04:15,033 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 0 proven. 70 refuted. 0 times theorem prover too weak. 110 trivial. 0 not checked. [2025-03-08 18:04:15,036 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-08 18:04:19,679 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2025-03-08 18:04:19,679 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2075580459] provided 1 perfect and 1 imperfect interpolant sequences [2025-03-08 18:04:19,679 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2025-03-08 18:04:19,679 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [5, 8] total 16 [2025-03-08 18:04:19,679 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [731589056] [2025-03-08 18:04:19,679 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 18:04:19,680 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2025-03-08 18:04:19,680 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 18:04:19,681 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2025-03-08 18:04:19,681 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=205, Unknown=0, NotChecked=0, Total=240 [2025-03-08 18:04:19,681 INFO L87 Difference]: Start difference. First operand 168 states and 215 transitions. Second operand has 8 states, 8 states have (on average 7.5) internal successors, (60), 7 states have internal predecessors, (60), 5 states have call successors, (24), 4 states have call predecessors, (24), 2 states have return successors, (21), 5 states have call predecessors, (21), 4 states have call successors, (21) [2025-03-08 18:04:22,945 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 18:04:22,947 INFO L93 Difference]: Finished difference Result 246 states and 320 transitions. [2025-03-08 18:04:22,947 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-03-08 18:04:22,947 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 7.5) internal successors, (60), 7 states have internal predecessors, (60), 5 states have call successors, (24), 4 states have call predecessors, (24), 2 states have return successors, (21), 5 states have call predecessors, (21), 4 states have call successors, (21) Word has length 155 [2025-03-08 18:04:22,948 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 18:04:22,952 INFO L225 Difference]: With dead ends: 246 [2025-03-08 18:04:22,952 INFO L226 Difference]: Without dead ends: 176 [2025-03-08 18:04:22,956 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 318 GetRequests, 298 SyntacticMatches, 1 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 3.8s TimeCoverageRelationStatistics Valid=59, Invalid=361, Unknown=0, NotChecked=0, Total=420 [2025-03-08 18:04:22,957 INFO L435 NwaCegarLoop]: 180 mSDtfsCounter, 214 mSDsluCounter, 701 mSDsCounter, 0 mSdLazyCounter, 170 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 216 SdHoareTripleChecker+Valid, 881 SdHoareTripleChecker+Invalid, 198 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 170 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2025-03-08 18:04:22,957 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [216 Valid, 881 Invalid, 198 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 170 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2025-03-08 18:04:22,959 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 176 states. [2025-03-08 18:04:22,984 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 176 to 170. [2025-03-08 18:04:22,985 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 170 states, 111 states have (on average 1.2342342342342343) internal successors, (137), 113 states have internal predecessors, (137), 40 states have call successors, (40), 17 states have call predecessors, (40), 18 states have return successors, (40), 39 states have call predecessors, (40), 39 states have call successors, (40) [2025-03-08 18:04:22,986 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 170 states to 170 states and 217 transitions. [2025-03-08 18:04:22,986 INFO L78 Accepts]: Start accepts. Automaton has 170 states and 217 transitions. Word has length 155 [2025-03-08 18:04:22,990 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 18:04:22,990 INFO L471 AbstractCegarLoop]: Abstraction has 170 states and 217 transitions. [2025-03-08 18:04:22,990 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 7.5) internal successors, (60), 7 states have internal predecessors, (60), 5 states have call successors, (24), 4 states have call predecessors, (24), 2 states have return successors, (21), 5 states have call predecessors, (21), 4 states have call successors, (21) [2025-03-08 18:04:22,990 INFO L276 IsEmpty]: Start isEmpty. Operand 170 states and 217 transitions. [2025-03-08 18:04:22,992 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2025-03-08 18:04:22,992 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 18:04:22,992 INFO L218 NwaCegarLoop]: trace histogram [9, 9, 9, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-08 18:04:23,013 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2025-03-08 18:04:23,192 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,SelfDestructingSolverStorable1 [2025-03-08 18:04:23,193 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-08 18:04:23,193 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 18:04:23,193 INFO L85 PathProgramCache]: Analyzing trace with hash -363121058, now seen corresponding path program 1 times [2025-03-08 18:04:23,193 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 18:04:23,194 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [836896064] [2025-03-08 18:04:23,194 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 18:04:23,194 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 18:04:27,111 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 156 statements into 1 equivalence classes. [2025-03-08 18:04:27,205 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 156 of 156 statements. [2025-03-08 18:04:27,206 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 18:04:27,206 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 18:04:28,273 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 173 trivial. 0 not checked. [2025-03-08 18:04:28,273 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 18:04:28,273 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [836896064] [2025-03-08 18:04:28,273 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [836896064] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-08 18:04:28,273 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [839060795] [2025-03-08 18:04:28,273 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 18:04:28,273 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-08 18:04:28,273 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-08 18:04:28,275 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) [2025-03-08 18:04:28,276 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2025-03-08 18:04:32,419 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 156 statements into 1 equivalence classes. [2025-03-08 18:04:32,905 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 156 of 156 statements. [2025-03-08 18:04:32,905 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 18:04:32,905 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 18:04:32,930 INFO L256 TraceCheckSpWp]: Trace formula consists of 4577 conjuncts, 7 conjuncts are in the unsatisfiable core [2025-03-08 18:04:32,938 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-08 18:04:33,080 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 101 proven. 0 refuted. 0 times theorem prover too weak. 79 trivial. 0 not checked. [2025-03-08 18:04:33,085 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-08 18:04:33,086 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [839060795] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 18:04:33,089 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-03-08 18:04:33,089 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 5 [2025-03-08 18:04:33,090 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [987699230] [2025-03-08 18:04:33,090 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 18:04:33,090 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-03-08 18:04:33,090 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 18:04:33,091 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-03-08 18:04:33,091 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-03-08 18:04:33,091 INFO L87 Difference]: Start difference. First operand 170 states and 217 transitions. Second operand has 5 states, 5 states have (on average 15.2) internal successors, (76), 5 states have internal predecessors, (76), 2 states have call successors, (24), 2 states have call predecessors, (24), 3 states have return successors, (22), 3 states have call predecessors, (22), 2 states have call successors, (22) [2025-03-08 18:04:33,365 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 18:04:33,366 INFO L93 Difference]: Finished difference Result 333 states and 426 transitions. [2025-03-08 18:04:33,366 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-03-08 18:04:33,367 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.2) internal successors, (76), 5 states have internal predecessors, (76), 2 states have call successors, (24), 2 states have call predecessors, (24), 3 states have return successors, (22), 3 states have call predecessors, (22), 2 states have call successors, (22) Word has length 156 [2025-03-08 18:04:33,368 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 18:04:33,374 INFO L225 Difference]: With dead ends: 333 [2025-03-08 18:04:33,375 INFO L226 Difference]: Without dead ends: 175 [2025-03-08 18:04:33,376 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 160 GetRequests, 157 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-03-08 18:04:33,379 INFO L435 NwaCegarLoop]: 211 mSDtfsCounter, 0 mSDsluCounter, 629 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 840 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2025-03-08 18:04:33,379 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 840 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2025-03-08 18:04:33,380 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 175 states. [2025-03-08 18:04:33,400 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 175 to 175. [2025-03-08 18:04:33,402 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 175 states, 115 states have (on average 1.2260869565217392) internal successors, (141), 117 states have internal predecessors, (141), 40 states have call successors, (40), 17 states have call predecessors, (40), 19 states have return successors, (41), 40 states have call predecessors, (41), 39 states have call successors, (41) [2025-03-08 18:04:33,404 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 175 states to 175 states and 222 transitions. [2025-03-08 18:04:33,406 INFO L78 Accepts]: Start accepts. Automaton has 175 states and 222 transitions. Word has length 156 [2025-03-08 18:04:33,408 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 18:04:33,409 INFO L471 AbstractCegarLoop]: Abstraction has 175 states and 222 transitions. [2025-03-08 18:04:33,409 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.2) internal successors, (76), 5 states have internal predecessors, (76), 2 states have call successors, (24), 2 states have call predecessors, (24), 3 states have return successors, (22), 3 states have call predecessors, (22), 2 states have call successors, (22) [2025-03-08 18:04:33,410 INFO L276 IsEmpty]: Start isEmpty. Operand 175 states and 222 transitions. [2025-03-08 18:04:33,412 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 169 [2025-03-08 18:04:33,412 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 18:04:33,412 INFO L218 NwaCegarLoop]: trace histogram [9, 9, 9, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-08 18:04:33,445 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2025-03-08 18:04:33,621 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-08 18:04:33,622 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-08 18:04:33,622 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 18:04:33,623 INFO L85 PathProgramCache]: Analyzing trace with hash 1705387262, now seen corresponding path program 1 times [2025-03-08 18:04:33,623 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 18:04:33,623 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1001906005] [2025-03-08 18:04:33,624 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 18:04:33,624 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 18:04:38,535 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 168 statements into 1 equivalence classes. [2025-03-08 18:04:38,798 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 168 of 168 statements. [2025-03-08 18:04:38,802 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 18:04:38,803 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 18:04:46,262 INFO L134 CoverageAnalysis]: Checked inductivity of 186 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 174 trivial. 0 not checked. [2025-03-08 18:04:46,262 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 18:04:46,262 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1001906005] [2025-03-08 18:04:46,262 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1001906005] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-08 18:04:46,262 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [41660648] [2025-03-08 18:04:46,262 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 18:04:46,262 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-08 18:04:46,263 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-08 18:04:46,266 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-08 18:04:46,267 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2025-03-08 18:04:51,148 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 168 statements into 1 equivalence classes. [2025-03-08 18:04:51,890 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 168 of 168 statements. [2025-03-08 18:04:51,890 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 18:04:51,890 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 18:04:51,924 INFO L256 TraceCheckSpWp]: Trace formula consists of 4585 conjuncts, 66 conjuncts are in the unsatisfiable core [2025-03-08 18:04:51,937 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-08 18:04:53,698 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2025-03-08 18:05:01,995 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 1 [2025-03-08 18:05:02,021 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 7 [2025-03-08 18:05:04,494 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 12 [2025-03-08 18:05:07,688 INFO L134 CoverageAnalysis]: Checked inductivity of 186 backedges. 141 proven. 0 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2025-03-08 18:05:07,688 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-08 18:05:07,688 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [41660648] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 18:05:07,688 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-03-08 18:05:07,689 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [10] total 26 [2025-03-08 18:05:07,689 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [904070864] [2025-03-08 18:05:07,689 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 18:05:07,689 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2025-03-08 18:05:07,689 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 18:05:07,690 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2025-03-08 18:05:07,691 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=82, Invalid=568, Unknown=0, NotChecked=0, Total=650 [2025-03-08 18:05:07,692 INFO L87 Difference]: Start difference. First operand 175 states and 222 transitions. Second operand has 19 states, 17 states have (on average 5.529411764705882) internal successors, (94), 16 states have internal predecessors, (94), 10 states have call successors, (28), 6 states have call predecessors, (28), 6 states have return successors, (25), 9 states have call predecessors, (25), 9 states have call successors, (25) [2025-03-08 18:05:11,770 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.07s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2025-03-08 18:05:16,218 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.44s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2025-03-08 18:05:20,615 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.39s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers []