./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/aws-c-common/aws_hash_table_clean_up_harness_negated.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 8fc3dc66 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_table_clean_up_harness_negated.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 50d4d1f2ae5bba89cc186bb0972ef2b0cd77f1837349703818d4cbd39178a465 --- Real Ultimate output --- This is Ultimate 0.3.0-?-8fc3dc6-m [2025-03-17 07:12:42,270 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-03-17 07:12:42,315 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2025-03-17 07:12:42,321 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-03-17 07:12:42,321 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-03-17 07:12:42,343 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-03-17 07:12:42,344 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-03-17 07:12:42,344 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-03-17 07:12:42,345 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-03-17 07:12:42,345 INFO L153 SettingsManager]: * Use memory slicer=true [2025-03-17 07:12:42,345 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-03-17 07:12:42,345 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-03-17 07:12:42,346 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-03-17 07:12:42,346 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-03-17 07:12:42,346 INFO L153 SettingsManager]: * Use SBE=true [2025-03-17 07:12:42,346 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-03-17 07:12:42,346 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-03-17 07:12:42,346 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-03-17 07:12:42,346 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-03-17 07:12:42,347 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-03-17 07:12:42,347 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-03-17 07:12:42,347 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-03-17 07:12:42,347 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-03-17 07:12:42,347 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-03-17 07:12:42,347 INFO L153 SettingsManager]: * Use constant arrays=true [2025-03-17 07:12:42,347 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-03-17 07:12:42,347 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-03-17 07:12:42,347 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-03-17 07:12:42,347 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-03-17 07:12:42,347 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-17 07:12:42,347 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-03-17 07:12:42,348 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-03-17 07:12:42,348 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-03-17 07:12:42,348 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-03-17 07:12:42,348 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-03-17 07:12:42,348 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-03-17 07:12:42,348 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-03-17 07:12:42,348 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-03-17 07:12:42,349 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-03-17 07:12:42,349 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-03-17 07:12:42,349 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 -> 50d4d1f2ae5bba89cc186bb0972ef2b0cd77f1837349703818d4cbd39178a465 [2025-03-17 07:12:42,618 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-03-17 07:12:42,624 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-03-17 07:12:42,626 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-03-17 07:12:42,627 INFO L270 PluginConnector]: Initializing CDTParser... [2025-03-17 07:12:42,627 INFO L274 PluginConnector]: CDTParser initialized [2025-03-17 07:12:42,628 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/aws-c-common/aws_hash_table_clean_up_harness_negated.i [2025-03-17 07:12:43,968 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/385c254bb/a24a583072864f6d8fae359177f4671d/FLAGbaad2ad5d [2025-03-17 07:12:44,402 INFO L384 CDTParser]: Found 1 translation units. [2025-03-17 07:12:44,403 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_hash_table_clean_up_harness_negated.i [2025-03-17 07:12:44,438 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/385c254bb/a24a583072864f6d8fae359177f4671d/FLAGbaad2ad5d [2025-03-17 07:12:44,452 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/385c254bb/a24a583072864f6d8fae359177f4671d [2025-03-17 07:12:44,455 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-03-17 07:12:44,457 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-03-17 07:12:44,458 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-03-17 07:12:44,458 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-03-17 07:12:44,461 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-03-17 07:12:44,462 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.03 07:12:44" (1/1) ... [2025-03-17 07:12:44,464 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1df36736 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 07:12:44, skipping insertion in model container [2025-03-17 07:12:44,464 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.03 07:12:44" (1/1) ... [2025-03-17 07:12:44,550 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-03-17 07:12:44,791 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_table_clean_up_harness_negated.i[4497,4510] [2025-03-17 07:12:44,799 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_table_clean_up_harness_negated.i[4557,4570] [2025-03-17 07:12:45,659 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 07:12:45,659 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 07:12:45,660 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 07:12:45,660 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 07:12:45,661 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 07:12:45,670 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 07:12:45,671 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 07:12:45,673 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 07:12:45,674 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 07:12:45,675 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 07:12:45,676 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 07:12:45,676 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 07:12:45,676 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 07:12:46,541 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 07:12:46,543 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 07:12:46,580 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 07:12:46,581 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 07:12:46,593 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 07:12:46,593 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 07:12:46,617 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 07:12:46,618 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 07:12:46,618 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 07:12:46,618 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 07:12:46,618 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 07:12:46,618 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 07:12:46,618 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 07:12:46,685 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_table_clean_up_harness_negated.i[228637,228650] [2025-03-17 07:12:46,686 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-17 07:12:46,713 INFO L200 MainTranslator]: Completed pre-run [2025-03-17 07:12:46,724 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_table_clean_up_harness_negated.i[4497,4510] [2025-03-17 07:12:46,728 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_table_clean_up_harness_negated.i[4557,4570] [2025-03-17 07:12:46,768 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 07:12:46,769 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 07:12:46,769 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 07:12:46,769 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 07:12:46,769 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 07:12:46,774 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 07:12:46,775 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 07:12:46,776 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 07:12:46,776 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 07:12:46,777 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 07:12:46,777 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 07:12:46,777 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 07:12:46,778 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 07:12:46,851 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" : : "r"(pBuf) : "memory"); [7553-7564] [2025-03-17 07:12:46,913 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 07:12:46,913 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 07:12:46,918 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 07:12:46,918 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 07:12:46,920 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 07:12:46,920 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 07:12:46,925 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 07:12:46,926 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 07:12:46,926 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 07:12:46,926 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 07:12:46,926 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 07:12:46,927 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 07:12:46,927 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 07:12:46,940 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_table_clean_up_harness_negated.i[228637,228650] [2025-03-17 07:12:46,940 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-17 07:12:47,124 INFO L204 MainTranslator]: Completed translation [2025-03-17 07:12:47,124 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 07:12:47 WrapperNode [2025-03-17 07:12:47,125 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-03-17 07:12:47,125 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-03-17 07:12:47,126 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-03-17 07:12:47,126 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-03-17 07:12:47,131 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 07:12:47" (1/1) ... [2025-03-17 07:12:47,186 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 07:12:47" (1/1) ... [2025-03-17 07:12:47,241 INFO L138 Inliner]: procedures = 764, calls = 2440, calls flagged for inlining = 72, calls inlined = 16, statements flattened = 716 [2025-03-17 07:12:47,241 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-03-17 07:12:47,243 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-03-17 07:12:47,243 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-03-17 07:12:47,243 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-03-17 07:12:47,249 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 07:12:47" (1/1) ... [2025-03-17 07:12:47,250 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 07:12:47" (1/1) ... [2025-03-17 07:12:47,262 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 07:12:47" (1/1) ... [2025-03-17 07:12:47,336 INFO L175 MemorySlicer]: Split 304 memory accesses to 8 slices as follows [238, 2, 1, 16, 37, 2, 6, 2]. 78 percent of accesses are in the largest equivalence class. The 13 initializations are split as follows [6, 2, 0, 0, 0, 0, 5, 0]. The 243 writes are split as follows [232, 0, 1, 2, 6, 1, 0, 1]. [2025-03-17 07:12:47,336 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 07:12:47" (1/1) ... [2025-03-17 07:12:47,336 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 07:12:47" (1/1) ... [2025-03-17 07:12:47,387 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 07:12:47" (1/1) ... [2025-03-17 07:12:47,389 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 07:12:47" (1/1) ... [2025-03-17 07:12:47,399 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 07:12:47" (1/1) ... [2025-03-17 07:12:47,415 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 07:12:47" (1/1) ... [2025-03-17 07:12:47,430 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-03-17 07:12:47,480 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-03-17 07:12:47,485 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-03-17 07:12:47,486 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-03-17 07:12:47,486 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 07:12:47" (1/1) ... [2025-03-17 07:12:47,493 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-17 07:12:47,504 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 07:12:47,522 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) [2025-03-17 07:12:47,539 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 [2025-03-17 07:12:47,555 INFO L130 BoogieDeclarations]: Found specification of procedure memset_override_0_impl [2025-03-17 07:12:47,555 INFO L138 BoogieDeclarations]: Found implementation of procedure memset_override_0_impl [2025-03-17 07:12:47,555 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#0 [2025-03-17 07:12:47,555 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#1 [2025-03-17 07:12:47,555 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#2 [2025-03-17 07:12:47,556 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#3 [2025-03-17 07:12:47,556 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#4 [2025-03-17 07:12:47,556 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#5 [2025-03-17 07:12:47,556 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#6 [2025-03-17 07:12:47,556 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#7 [2025-03-17 07:12:47,557 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2025-03-17 07:12:47,557 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_bool [2025-03-17 07:12:47,557 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_bool [2025-03-17 07:12:47,557 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#0 [2025-03-17 07:12:47,557 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#1 [2025-03-17 07:12:47,557 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#2 [2025-03-17 07:12:47,557 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#3 [2025-03-17 07:12:47,557 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#4 [2025-03-17 07:12:47,557 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#5 [2025-03-17 07:12:47,557 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#6 [2025-03-17 07:12:47,557 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#7 [2025-03-17 07:12:47,557 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2025-03-17 07:12:47,557 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2025-03-17 07:12:47,557 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2025-03-17 07:12:47,557 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2025-03-17 07:12:47,557 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2025-03-17 07:12:47,557 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2025-03-17 07:12:47,557 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#6 [2025-03-17 07:12:47,557 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#7 [2025-03-17 07:12:47,558 INFO L130 BoogieDeclarations]: Found specification of procedure aws_raise_error [2025-03-17 07:12:47,558 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_raise_error [2025-03-17 07:12:47,558 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2025-03-17 07:12:47,558 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2025-03-17 07:12:47,558 INFO L130 BoogieDeclarations]: Found specification of procedure hash_table_state_is_valid [2025-03-17 07:12:47,558 INFO L138 BoogieDeclarations]: Found implementation of procedure hash_table_state_is_valid [2025-03-17 07:12:47,558 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2025-03-17 07:12:47,558 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-03-17 07:12:47,558 INFO L130 BoogieDeclarations]: Found specification of procedure hash_table_state_required_bytes [2025-03-17 07:12:47,558 INFO L138 BoogieDeclarations]: Found implementation of procedure hash_table_state_required_bytes [2025-03-17 07:12:47,558 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2025-03-17 07:12:47,558 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2025-03-17 07:12:47,558 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2025-03-17 07:12:47,558 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2025-03-17 07:12:47,558 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#4 [2025-03-17 07:12:47,558 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#5 [2025-03-17 07:12:47,558 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#6 [2025-03-17 07:12:47,558 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#7 [2025-03-17 07:12:47,558 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2025-03-17 07:12:47,558 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2025-03-17 07:12:47,558 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-03-17 07:12:47,558 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-03-17 07:12:47,558 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2025-03-17 07:12:47,558 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2025-03-17 07:12:47,558 INFO L130 BoogieDeclarations]: Found specification of procedure aws_mul_size_checked [2025-03-17 07:12:47,558 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_mul_size_checked [2025-03-17 07:12:47,558 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#0 [2025-03-17 07:12:47,558 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#1 [2025-03-17 07:12:47,558 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#2 [2025-03-17 07:12:47,558 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#3 [2025-03-17 07:12:47,558 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#4 [2025-03-17 07:12:47,558 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#5 [2025-03-17 07:12:47,558 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#6 [2025-03-17 07:12:47,558 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#7 [2025-03-17 07:12:47,558 INFO L130 BoogieDeclarations]: Found specification of procedure aws_mem_release [2025-03-17 07:12:47,558 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_mem_release [2025-03-17 07:12:47,561 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2025-03-17 07:12:47,561 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2025-03-17 07:12:47,561 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2025-03-17 07:12:47,561 INFO L130 BoogieDeclarations]: Found specification of procedure __CPROVER_overflow_plus [2025-03-17 07:12:47,561 INFO L138 BoogieDeclarations]: Found implementation of procedure __CPROVER_overflow_plus [2025-03-17 07:12:47,561 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2025-03-17 07:12:47,561 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2025-03-17 07:12:47,561 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2025-03-17 07:12:47,561 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2025-03-17 07:12:47,561 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#4 [2025-03-17 07:12:47,561 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#5 [2025-03-17 07:12:47,561 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#6 [2025-03-17 07:12:47,561 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#7 [2025-03-17 07:12:47,561 INFO L130 BoogieDeclarations]: Found specification of procedure aws_hash_table_is_valid [2025-03-17 07:12:47,561 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_hash_table_is_valid [2025-03-17 07:12:47,562 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#0 [2025-03-17 07:12:47,562 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#1 [2025-03-17 07:12:47,562 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#2 [2025-03-17 07:12:47,562 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#3 [2025-03-17 07:12:47,562 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#4 [2025-03-17 07:12:47,562 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#5 [2025-03-17 07:12:47,562 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#6 [2025-03-17 07:12:47,562 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#7 [2025-03-17 07:12:47,562 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_allocator [2025-03-17 07:12:47,562 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_allocator [2025-03-17 07:12:47,562 INFO L130 BoogieDeclarations]: Found specification of procedure __CPROVER_overflow_mult [2025-03-17 07:12:47,562 INFO L138 BoogieDeclarations]: Found implementation of procedure __CPROVER_overflow_mult [2025-03-17 07:12:47,562 INFO L130 BoogieDeclarations]: Found specification of procedure aws_add_size_checked [2025-03-17 07:12:47,562 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_add_size_checked [2025-03-17 07:12:47,562 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_uint64_t [2025-03-17 07:12:47,562 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_uint64_t [2025-03-17 07:12:47,562 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2025-03-17 07:12:47,562 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2025-03-17 07:12:47,562 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2025-03-17 07:12:47,562 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2025-03-17 07:12:47,562 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2025-03-17 07:12:47,562 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2025-03-17 07:12:47,562 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#6 [2025-03-17 07:12:47,562 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#7 [2025-03-17 07:12:47,562 INFO L130 BoogieDeclarations]: Found specification of procedure my_memset [2025-03-17 07:12:47,562 INFO L138 BoogieDeclarations]: Found implementation of procedure my_memset [2025-03-17 07:12:47,562 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-03-17 07:12:47,562 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2025-03-17 07:12:47,562 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2025-03-17 07:12:47,562 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2025-03-17 07:12:47,562 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2025-03-17 07:12:47,562 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2025-03-17 07:12:47,562 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#6 [2025-03-17 07:12:47,562 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#7 [2025-03-17 07:12:47,562 INFO L130 BoogieDeclarations]: Found specification of procedure aws_is_power_of_two [2025-03-17 07:12:47,562 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_is_power_of_two [2025-03-17 07:12:47,951 INFO L256 CfgBuilder]: Building ICFG [2025-03-17 07:12:47,954 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2025-03-17 07:12:48,003 INFO L1322 $ProcedureCfgBuilder]: dead code at ProgramPoint L6935: havoc #t~malloc588.base, #t~malloc588.offset; [2025-03-17 07:12:48,030 INFO L1322 $ProcedureCfgBuilder]: dead code at ProgramPoint L10096: call ULTIMATE.dealloc(~#elemsize~0.base, ~#elemsize~0.offset);havoc ~#elemsize~0.base, ~#elemsize~0.offset; [2025-03-17 07:12:48,073 INFO L1322 $ProcedureCfgBuilder]: dead code at ProgramPoint L2590: havoc #t~ret57#1; [2025-03-17 07:12:48,079 INFO L1322 $ProcedureCfgBuilder]: dead code at ProgramPoint L266: havoc #t~nondet9; [2025-03-17 07:12:48,090 INFO L1322 $ProcedureCfgBuilder]: dead code at ProgramPoint L7383: havoc #t~ret691.base, #t~ret691.offset; [2025-03-17 07:12:48,114 INFO L1322 $ProcedureCfgBuilder]: dead code at ProgramPoint L9983: havoc #t~mem1492.base, #t~mem1492.offset;havoc #t~short1493;havoc #t~mem1494.base, #t~mem1494.offset;havoc #t~ret1495;havoc #t~short1496; [2025-03-17 07:12:48,119 INFO L1322 $ProcedureCfgBuilder]: dead code at ProgramPoint L261: havoc #t~nondet4; [2025-03-17 07:12:48,189 INFO L1322 $ProcedureCfgBuilder]: dead code at ProgramPoint L2630: havoc #t~bitwise60;havoc #t~short61; [2025-03-17 07:12:48,204 INFO L1322 $ProcedureCfgBuilder]: dead code at ProgramPoint L2617: havoc #t~ret59#1; [2025-03-17 07:12:53,407 INFO L1322 $ProcedureCfgBuilder]: dead code at ProgramPoint L6821: havoc aws_hash_table_has_an_empty_slot_#t~mem566#1.base, aws_hash_table_has_an_empty_slot_#t~mem566#1.offset;havoc aws_hash_table_has_an_empty_slot_#t~ret567#1; [2025-03-17 07:12:53,408 INFO L1322 $ProcedureCfgBuilder]: dead code at ProgramPoint L6831: havoc hash_table_state_has_an_empty_slot_#t~mem571#1; [2025-03-17 07:12:53,529 INFO L? ?]: Removed 159 outVars from TransFormulas that were not future-live. [2025-03-17 07:12:53,530 INFO L307 CfgBuilder]: Performing block encoding [2025-03-17 07:12:53,549 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-03-17 07:12:53,549 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2025-03-17 07:12:53,549 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 17.03 07:12:53 BoogieIcfgContainer [2025-03-17 07:12:53,549 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-03-17 07:12:53,551 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-03-17 07:12:53,551 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-03-17 07:12:53,555 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-03-17 07:12:53,555 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.03 07:12:44" (1/3) ... [2025-03-17 07:12:53,556 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@19a913c8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.03 07:12:53, skipping insertion in model container [2025-03-17 07:12:53,556 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 07:12:47" (2/3) ... [2025-03-17 07:12:53,557 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@19a913c8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.03 07:12:53, skipping insertion in model container [2025-03-17 07:12:53,557 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 17.03 07:12:53" (3/3) ... [2025-03-17 07:12:53,558 INFO L128 eAbstractionObserver]: Analyzing ICFG aws_hash_table_clean_up_harness_negated.i [2025-03-17 07:12:53,570 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-03-17 07:12:53,571 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG aws_hash_table_clean_up_harness_negated.i that has 20 procedures, 188 locations, 1 initial locations, 2 loop locations, and 1 error locations. [2025-03-17 07:12:53,622 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-03-17 07:12:53,631 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;@2347028, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-03-17 07:12:53,632 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2025-03-17 07:12:53,638 INFO L276 IsEmpty]: Start isEmpty. Operand has 188 states, 120 states have (on average 1.2083333333333333) internal successors, (145), 121 states have internal predecessors, (145), 47 states have call successors, (47), 19 states have call predecessors, (47), 19 states have return successors, (47), 47 states have call predecessors, (47), 47 states have call successors, (47) [2025-03-17 07:12:53,647 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2025-03-17 07:12:53,648 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 07:12:53,649 INFO L218 NwaCegarLoop]: trace histogram [10, 10, 10, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 07:12:53,650 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-17 07:12:53,653 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 07:12:53,654 INFO L85 PathProgramCache]: Analyzing trace with hash 1929359033, now seen corresponding path program 1 times [2025-03-17 07:12:53,659 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 07:12:53,660 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [544158815] [2025-03-17 07:12:53,660 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 07:12:53,660 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 07:12:58,138 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 130 statements into 1 equivalence classes. [2025-03-17 07:12:58,485 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 130 of 130 statements. [2025-03-17 07:12:58,486 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 07:12:58,486 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 07:12:58,982 INFO L134 CoverageAnalysis]: Checked inductivity of 186 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 168 trivial. 0 not checked. [2025-03-17 07:12:58,983 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 07:12:58,984 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [544158815] [2025-03-17 07:12:58,985 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [544158815] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-17 07:12:58,985 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2018160664] [2025-03-17 07:12:58,985 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 07:12:58,985 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 07:12:58,985 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 07:12:58,989 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) [2025-03-17 07:12:58,990 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2025-03-17 07:13:03,319 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 130 statements into 1 equivalence classes. [2025-03-17 07:13:03,820 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 130 of 130 statements. [2025-03-17 07:13:03,820 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 07:13:03,820 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 07:13:03,843 INFO L256 TraceCheckSpWp]: Trace formula consists of 4315 conjuncts, 1 conjuncts are in the unsatisfiable core [2025-03-17 07:13:03,851 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 07:13:03,866 INFO L134 CoverageAnalysis]: Checked inductivity of 186 backedges. 21 proven. 0 refuted. 0 times theorem prover too weak. 165 trivial. 0 not checked. [2025-03-17 07:13:03,866 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-17 07:13:03,866 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2018160664] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 07:13:03,866 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-03-17 07:13:03,870 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2 [2025-03-17 07:13:03,872 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1324011829] [2025-03-17 07:13:03,872 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 07:13:03,875 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2025-03-17 07:13:03,875 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 07:13:03,891 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2025-03-17 07:13:03,892 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-03-17 07:13:03,895 INFO L87 Difference]: Start difference. First operand has 188 states, 120 states have (on average 1.2083333333333333) internal successors, (145), 121 states have internal predecessors, (145), 47 states have call successors, (47), 19 states have call predecessors, (47), 19 states have return successors, (47), 47 states have call predecessors, (47), 47 states have call successors, (47) Second operand has 2 states, 2 states have (on average 30.0) internal successors, (60), 2 states have internal predecessors, (60), 2 states have call successors, (22), 2 states have call predecessors, (22), 2 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2025-03-17 07:13:03,940 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 07:13:03,940 INFO L93 Difference]: Finished difference Result 372 states and 504 transitions. [2025-03-17 07:13:03,941 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-03-17 07:13:03,942 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 30.0) internal successors, (60), 2 states have internal predecessors, (60), 2 states have call successors, (22), 2 states have call predecessors, (22), 2 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) Word has length 130 [2025-03-17 07:13:03,943 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 07:13:03,950 INFO L225 Difference]: With dead ends: 372 [2025-03-17 07:13:03,950 INFO L226 Difference]: Without dead ends: 184 [2025-03-17 07:13:03,953 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 131 GetRequests, 131 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-03-17 07:13:03,955 INFO L435 NwaCegarLoop]: 234 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, 234 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 [2025-03-17 07:13:03,955 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 234 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-17 07:13:03,964 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 184 states. [2025-03-17 07:13:03,988 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 184 to 184. [2025-03-17 07:13:03,991 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 184 states, 117 states have (on average 1.170940170940171) internal successors, (137), 118 states have internal predecessors, (137), 47 states have call successors, (47), 19 states have call predecessors, (47), 19 states have return successors, (46), 46 states have call predecessors, (46), 46 states have call successors, (46) [2025-03-17 07:13:03,996 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 184 states to 184 states and 230 transitions. [2025-03-17 07:13:03,998 INFO L78 Accepts]: Start accepts. Automaton has 184 states and 230 transitions. Word has length 130 [2025-03-17 07:13:03,999 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 07:13:03,999 INFO L471 AbstractCegarLoop]: Abstraction has 184 states and 230 transitions. [2025-03-17 07:13:03,999 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 30.0) internal successors, (60), 2 states have internal predecessors, (60), 2 states have call successors, (22), 2 states have call predecessors, (22), 2 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2025-03-17 07:13:03,999 INFO L276 IsEmpty]: Start isEmpty. Operand 184 states and 230 transitions. [2025-03-17 07:13:04,003 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2025-03-17 07:13:04,003 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 07:13:04,003 INFO L218 NwaCegarLoop]: trace histogram [10, 10, 10, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 07:13:04,036 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2025-03-17 07:13:04,204 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 [2025-03-17 07:13:04,204 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-17 07:13:04,205 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 07:13:04,208 INFO L85 PathProgramCache]: Analyzing trace with hash 1679610585, now seen corresponding path program 1 times [2025-03-17 07:13:04,209 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 07:13:04,209 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1534653526] [2025-03-17 07:13:04,209 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 07:13:04,209 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 07:13:09,076 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 130 statements into 1 equivalence classes. [2025-03-17 07:13:09,197 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 130 of 130 statements. [2025-03-17 07:13:09,197 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 07:13:09,197 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 07:13:10,300 INFO L134 CoverageAnalysis]: Checked inductivity of 186 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 186 trivial. 0 not checked. [2025-03-17 07:13:10,301 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 07:13:10,301 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1534653526] [2025-03-17 07:13:10,301 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1534653526] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 07:13:10,301 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 07:13:10,301 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-03-17 07:13:10,301 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [269242268] [2025-03-17 07:13:10,301 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 07:13:10,302 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-03-17 07:13:10,302 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 07:13:10,303 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-03-17 07:13:10,303 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-03-17 07:13:10,303 INFO L87 Difference]: Start difference. First operand 184 states and 230 transitions. Second operand has 5 states, 5 states have (on average 11.2) internal successors, (56), 5 states have internal predecessors, (56), 2 states have call successors, (22), 2 states have call predecessors, (22), 3 states have return successors, (21), 3 states have call predecessors, (21), 2 states have call successors, (21) [2025-03-17 07:13:10,545 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 07:13:10,545 INFO L93 Difference]: Finished difference Result 333 states and 417 transitions. [2025-03-17 07:13:10,547 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-03-17 07:13:10,547 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.2) internal successors, (56), 5 states have internal predecessors, (56), 2 states have call successors, (22), 2 states have call predecessors, (22), 3 states have return successors, (21), 3 states have call predecessors, (21), 2 states have call successors, (21) Word has length 130 [2025-03-17 07:13:10,547 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 07:13:10,549 INFO L225 Difference]: With dead ends: 333 [2025-03-17 07:13:10,549 INFO L226 Difference]: Without dead ends: 189 [2025-03-17 07:13:10,549 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-03-17 07:13:10,550 INFO L435 NwaCegarLoop]: 226 mSDtfsCounter, 0 mSDsluCounter, 674 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 900 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 [2025-03-17 07:13:10,550 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 900 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2025-03-17 07:13:10,551 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 189 states. [2025-03-17 07:13:10,563 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 189 to 189. [2025-03-17 07:13:10,565 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 189 states, 121 states have (on average 1.165289256198347) internal successors, (141), 122 states have internal predecessors, (141), 47 states have call successors, (47), 19 states have call predecessors, (47), 20 states have return successors, (47), 47 states have call predecessors, (47), 46 states have call successors, (47) [2025-03-17 07:13:10,566 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 189 states to 189 states and 235 transitions. [2025-03-17 07:13:10,568 INFO L78 Accepts]: Start accepts. Automaton has 189 states and 235 transitions. Word has length 130 [2025-03-17 07:13:10,568 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 07:13:10,568 INFO L471 AbstractCegarLoop]: Abstraction has 189 states and 235 transitions. [2025-03-17 07:13:10,568 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.2) internal successors, (56), 5 states have internal predecessors, (56), 2 states have call successors, (22), 2 states have call predecessors, (22), 3 states have return successors, (21), 3 states have call predecessors, (21), 2 states have call successors, (21) [2025-03-17 07:13:10,568 INFO L276 IsEmpty]: Start isEmpty. Operand 189 states and 235 transitions. [2025-03-17 07:13:10,569 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2025-03-17 07:13:10,570 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 07:13:10,570 INFO L218 NwaCegarLoop]: trace histogram [10, 10, 10, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 07:13:10,570 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-03-17 07:13:10,570 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-17 07:13:10,570 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 07:13:10,570 INFO L85 PathProgramCache]: Analyzing trace with hash 1410278975, now seen corresponding path program 1 times [2025-03-17 07:13:10,570 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 07:13:10,570 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [872884460] [2025-03-17 07:13:10,570 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 07:13:10,571 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 07:13:15,247 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 135 statements into 1 equivalence classes. [2025-03-17 07:13:15,348 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 135 of 135 statements. [2025-03-17 07:13:15,348 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 07:13:15,348 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 07:13:19,219 INFO L134 CoverageAnalysis]: Checked inductivity of 186 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 186 trivial. 0 not checked. [2025-03-17 07:13:19,220 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 07:13:19,220 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [872884460] [2025-03-17 07:13:19,220 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [872884460] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 07:13:19,220 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 07:13:19,220 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2025-03-17 07:13:19,222 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1953698695] [2025-03-17 07:13:19,222 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 07:13:19,222 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2025-03-17 07:13:19,223 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 07:13:19,223 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2025-03-17 07:13:19,223 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2025-03-17 07:13:19,224 INFO L87 Difference]: Start difference. First operand 189 states and 235 transitions. Second operand has 10 states, 9 states have (on average 6.555555555555555) internal successors, (59), 9 states have internal predecessors, (59), 4 states have call successors, (23), 2 states have call predecessors, (23), 3 states have return successors, (22), 4 states have call predecessors, (22), 4 states have call successors, (22) [2025-03-17 07:13:23,305 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 [] [2025-03-17 07:13:27,793 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.49s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2025-03-17 07:13:32,328 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 07:13:32,328 INFO L93 Difference]: Finished difference Result 329 states and 416 transitions. [2025-03-17 07:13:32,328 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2025-03-17 07:13:32,329 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 6.555555555555555) internal successors, (59), 9 states have internal predecessors, (59), 4 states have call successors, (23), 2 states have call predecessors, (23), 3 states have return successors, (22), 4 states have call predecessors, (22), 4 states have call successors, (22) Word has length 135 [2025-03-17 07:13:32,329 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 07:13:32,332 INFO L225 Difference]: With dead ends: 329 [2025-03-17 07:13:32,332 INFO L226 Difference]: Without dead ends: 198 [2025-03-17 07:13:32,333 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=36, Invalid=120, Unknown=0, NotChecked=0, Total=156 [2025-03-17 07:13:32,333 INFO L435 NwaCegarLoop]: 209 mSDtfsCounter, 50 mSDsluCounter, 1070 mSDsCounter, 0 mSdLazyCounter, 260 mSolverCounterSat, 0 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 77 SdHoareTripleChecker+Valid, 1279 SdHoareTripleChecker+Invalid, 262 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 260 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12.5s IncrementalHoareTripleChecker+Time [2025-03-17 07:13:32,333 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [77 Valid, 1279 Invalid, 262 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 260 Invalid, 2 Unknown, 0 Unchecked, 12.5s Time] [2025-03-17 07:13:32,334 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 198 states. [2025-03-17 07:13:32,348 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 198 to 194. [2025-03-17 07:13:32,348 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 194 states, 125 states have (on average 1.168) internal successors, (146), 127 states have internal predecessors, (146), 47 states have call successors, (47), 19 states have call predecessors, (47), 21 states have return successors, (50), 47 states have call predecessors, (50), 46 states have call successors, (50) [2025-03-17 07:13:32,350 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 194 states to 194 states and 243 transitions. [2025-03-17 07:13:32,350 INFO L78 Accepts]: Start accepts. Automaton has 194 states and 243 transitions. Word has length 135 [2025-03-17 07:13:32,351 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 07:13:32,351 INFO L471 AbstractCegarLoop]: Abstraction has 194 states and 243 transitions. [2025-03-17 07:13:32,351 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 6.555555555555555) internal successors, (59), 9 states have internal predecessors, (59), 4 states have call successors, (23), 2 states have call predecessors, (23), 3 states have return successors, (22), 4 states have call predecessors, (22), 4 states have call successors, (22) [2025-03-17 07:13:32,352 INFO L276 IsEmpty]: Start isEmpty. Operand 194 states and 243 transitions. [2025-03-17 07:13:32,353 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2025-03-17 07:13:32,353 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 07:13:32,354 INFO L218 NwaCegarLoop]: trace histogram [10, 10, 10, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 07:13:32,354 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2025-03-17 07:13:32,354 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-17 07:13:32,354 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 07:13:32,354 INFO L85 PathProgramCache]: Analyzing trace with hash 926603648, now seen corresponding path program 1 times [2025-03-17 07:13:32,354 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 07:13:32,354 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1016711084] [2025-03-17 07:13:32,355 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 07:13:32,355 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 07:13:36,143 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 135 statements into 1 equivalence classes. [2025-03-17 07:13:36,248 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 135 of 135 statements. [2025-03-17 07:13:36,249 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 07:13:36,249 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 07:13:37,373 INFO L134 CoverageAnalysis]: Checked inductivity of 186 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 186 trivial. 0 not checked. [2025-03-17 07:13:37,374 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 07:13:37,374 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1016711084] [2025-03-17 07:13:37,374 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1016711084] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 07:13:37,375 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 07:13:37,376 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-03-17 07:13:37,376 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [644307971] [2025-03-17 07:13:37,376 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 07:13:37,377 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-03-17 07:13:37,377 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 07:13:37,377 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-03-17 07:13:37,377 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2025-03-17 07:13:37,378 INFO L87 Difference]: Start difference. First operand 194 states and 243 transitions. Second operand has 5 states, 5 states have (on average 11.8) internal successors, (59), 5 states have internal predecessors, (59), 3 states have call successors, (23), 2 states have call predecessors, (23), 2 states have return successors, (22), 3 states have call predecessors, (22), 3 states have call successors, (22) [2025-03-17 07:13:38,100 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 07:13:38,101 INFO L93 Difference]: Finished difference Result 335 states and 425 transitions. [2025-03-17 07:13:38,101 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-03-17 07:13:38,101 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.8) internal successors, (59), 5 states have internal predecessors, (59), 3 states have call successors, (23), 2 states have call predecessors, (23), 2 states have return successors, (22), 3 states have call predecessors, (22), 3 states have call successors, (22) Word has length 135 [2025-03-17 07:13:38,102 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 07:13:38,103 INFO L225 Difference]: With dead ends: 335 [2025-03-17 07:13:38,103 INFO L226 Difference]: Without dead ends: 199 [2025-03-17 07:13:38,104 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2025-03-17 07:13:38,106 INFO L435 NwaCegarLoop]: 228 mSDtfsCounter, 51 mSDsluCounter, 365 mSDsCounter, 0 mSdLazyCounter, 31 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 76 SdHoareTripleChecker+Valid, 593 SdHoareTripleChecker+Invalid, 32 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 31 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2025-03-17 07:13:38,106 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [76 Valid, 593 Invalid, 32 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 31 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2025-03-17 07:13:38,107 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 199 states. [2025-03-17 07:13:38,118 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 199 to 196. [2025-03-17 07:13:38,119 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 196 states, 126 states have (on average 1.1666666666666667) internal successors, (147), 128 states have internal predecessors, (147), 48 states have call successors, (48), 19 states have call predecessors, (48), 21 states have return successors, (51), 48 states have call predecessors, (51), 47 states have call successors, (51) [2025-03-17 07:13:38,120 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 196 states to 196 states and 246 transitions. [2025-03-17 07:13:38,120 INFO L78 Accepts]: Start accepts. Automaton has 196 states and 246 transitions. Word has length 135 [2025-03-17 07:13:38,121 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 07:13:38,121 INFO L471 AbstractCegarLoop]: Abstraction has 196 states and 246 transitions. [2025-03-17 07:13:38,121 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.8) internal successors, (59), 5 states have internal predecessors, (59), 3 states have call successors, (23), 2 states have call predecessors, (23), 2 states have return successors, (22), 3 states have call predecessors, (22), 3 states have call successors, (22) [2025-03-17 07:13:38,121 INFO L276 IsEmpty]: Start isEmpty. Operand 196 states and 246 transitions. [2025-03-17 07:13:38,122 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2025-03-17 07:13:38,122 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 07:13:38,122 INFO L218 NwaCegarLoop]: trace histogram [10, 10, 10, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 07:13:38,122 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2025-03-17 07:13:38,122 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-17 07:13:38,123 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 07:13:38,123 INFO L85 PathProgramCache]: Analyzing trace with hash -1082377489, now seen corresponding path program 1 times [2025-03-17 07:13:38,123 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 07:13:38,123 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [490275146] [2025-03-17 07:13:38,123 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 07:13:38,123 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 07:13:41,870 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 141 statements into 1 equivalence classes. [2025-03-17 07:13:42,093 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 141 of 141 statements. [2025-03-17 07:13:42,094 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 07:13:42,094 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 07:13:44,930 INFO L134 CoverageAnalysis]: Checked inductivity of 186 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 186 trivial. 0 not checked. [2025-03-17 07:13:44,931 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 07:13:44,931 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [490275146] [2025-03-17 07:13:44,932 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [490275146] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 07:13:44,932 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 07:13:44,932 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2025-03-17 07:13:44,932 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [333126568] [2025-03-17 07:13:44,932 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 07:13:44,932 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2025-03-17 07:13:44,933 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 07:13:44,934 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2025-03-17 07:13:44,934 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2025-03-17 07:13:44,934 INFO L87 Difference]: Start difference. First operand 196 states and 246 transitions. Second operand has 7 states, 6 states have (on average 10.5) internal successors, (63), 7 states have internal predecessors, (63), 3 states have call successors, (24), 2 states have call predecessors, (24), 3 states have return successors, (23), 2 states have call predecessors, (23), 3 states have call successors, (23) [2025-03-17 07:13:45,987 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 07:13:45,987 INFO L93 Difference]: Finished difference Result 337 states and 433 transitions. [2025-03-17 07:13:45,988 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2025-03-17 07:13:45,988 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 10.5) internal successors, (63), 7 states have internal predecessors, (63), 3 states have call successors, (24), 2 states have call predecessors, (24), 3 states have return successors, (23), 2 states have call predecessors, (23), 3 states have call successors, (23) Word has length 141 [2025-03-17 07:13:45,988 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 07:13:45,990 INFO L225 Difference]: With dead ends: 337 [2025-03-17 07:13:45,990 INFO L226 Difference]: Without dead ends: 197 [2025-03-17 07:13:45,990 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2025-03-17 07:13:45,991 INFO L435 NwaCegarLoop]: 223 mSDtfsCounter, 3 mSDsluCounter, 1076 mSDsCounter, 0 mSdLazyCounter, 76 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 1299 SdHoareTripleChecker+Invalid, 77 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 76 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2025-03-17 07:13:45,991 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 1299 Invalid, 77 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 76 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2025-03-17 07:13:45,992 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 197 states. [2025-03-17 07:13:45,998 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 197 to 196. [2025-03-17 07:13:45,999 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 196 states, 126 states have (on average 1.1587301587301588) internal successors, (146), 128 states have internal predecessors, (146), 48 states have call successors, (48), 19 states have call predecessors, (48), 21 states have return successors, (51), 48 states have call predecessors, (51), 47 states have call successors, (51) [2025-03-17 07:13:46,000 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 196 states to 196 states and 245 transitions. [2025-03-17 07:13:46,000 INFO L78 Accepts]: Start accepts. Automaton has 196 states and 245 transitions. Word has length 141 [2025-03-17 07:13:46,001 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 07:13:46,001 INFO L471 AbstractCegarLoop]: Abstraction has 196 states and 245 transitions. [2025-03-17 07:13:46,001 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 10.5) internal successors, (63), 7 states have internal predecessors, (63), 3 states have call successors, (24), 2 states have call predecessors, (24), 3 states have return successors, (23), 2 states have call predecessors, (23), 3 states have call successors, (23) [2025-03-17 07:13:46,001 INFO L276 IsEmpty]: Start isEmpty. Operand 196 states and 245 transitions. [2025-03-17 07:13:46,002 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2025-03-17 07:13:46,002 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 07:13:46,002 INFO L218 NwaCegarLoop]: trace histogram [10, 10, 10, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 07:13:46,002 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2025-03-17 07:13:46,002 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-17 07:13:46,004 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 07:13:46,004 INFO L85 PathProgramCache]: Analyzing trace with hash 22908742, now seen corresponding path program 1 times [2025-03-17 07:13:46,004 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 07:13:46,004 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [442654762] [2025-03-17 07:13:46,004 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 07:13:46,004 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 07:13:49,651 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 148 statements into 1 equivalence classes. [2025-03-17 07:13:49,750 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 148 of 148 statements. [2025-03-17 07:13:49,750 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 07:13:49,750 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 07:13:52,655 INFO L134 CoverageAnalysis]: Checked inductivity of 191 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 191 trivial. 0 not checked. [2025-03-17 07:13:52,656 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 07:13:52,656 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [442654762] [2025-03-17 07:13:52,656 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [442654762] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 07:13:52,656 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 07:13:52,656 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2025-03-17 07:13:52,656 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1590417598] [2025-03-17 07:13:52,656 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 07:13:52,656 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2025-03-17 07:13:52,656 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 07:13:52,657 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2025-03-17 07:13:52,657 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2025-03-17 07:13:52,657 INFO L87 Difference]: Start difference. First operand 196 states and 245 transitions. Second operand has 8 states, 8 states have (on average 8.0) internal successors, (64), 7 states have internal predecessors, (64), 5 states have call successors, (25), 2 states have call predecessors, (25), 2 states have return successors, (24), 5 states have call predecessors, (24), 4 states have call successors, (24) [2025-03-17 07:13:56,730 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 [] [2025-03-17 07:14:01,214 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.48s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2025-03-17 07:14:05,040 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 07:14:05,040 INFO L93 Difference]: Finished difference Result 218 states and 267 transitions. [2025-03-17 07:14:05,042 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-03-17 07:14:05,042 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 8.0) internal successors, (64), 7 states have internal predecessors, (64), 5 states have call successors, (25), 2 states have call predecessors, (25), 2 states have return successors, (24), 5 states have call predecessors, (24), 4 states have call successors, (24) Word has length 148 [2025-03-17 07:14:05,043 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 07:14:05,044 INFO L225 Difference]: With dead ends: 218 [2025-03-17 07:14:05,044 INFO L226 Difference]: Without dead ends: 196 [2025-03-17 07:14:05,044 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2025-03-17 07:14:05,045 INFO L435 NwaCegarLoop]: 215 mSDtfsCounter, 57 mSDsluCounter, 1078 mSDsCounter, 0 mSdLazyCounter, 184 mSolverCounterSat, 20 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 57 SdHoareTripleChecker+Valid, 1293 SdHoareTripleChecker+Invalid, 206 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 184 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12.0s IncrementalHoareTripleChecker+Time [2025-03-17 07:14:05,045 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [57 Valid, 1293 Invalid, 206 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 184 Invalid, 2 Unknown, 0 Unchecked, 12.0s Time] [2025-03-17 07:14:05,045 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 196 states. [2025-03-17 07:14:05,057 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 196 to 196. [2025-03-17 07:14:05,058 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 196 states, 126 states have (on average 1.1507936507936507) internal successors, (145), 128 states have internal predecessors, (145), 48 states have call successors, (48), 19 states have call predecessors, (48), 21 states have return successors, (51), 48 states have call predecessors, (51), 47 states have call successors, (51) [2025-03-17 07:14:05,059 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 196 states to 196 states and 244 transitions. [2025-03-17 07:14:05,060 INFO L78 Accepts]: Start accepts. Automaton has 196 states and 244 transitions. Word has length 148 [2025-03-17 07:14:05,061 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 07:14:05,061 INFO L471 AbstractCegarLoop]: Abstraction has 196 states and 244 transitions. [2025-03-17 07:14:05,061 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 8.0) internal successors, (64), 7 states have internal predecessors, (64), 5 states have call successors, (25), 2 states have call predecessors, (25), 2 states have return successors, (24), 5 states have call predecessors, (24), 4 states have call successors, (24) [2025-03-17 07:14:05,061 INFO L276 IsEmpty]: Start isEmpty. Operand 196 states and 244 transitions. [2025-03-17 07:14:05,063 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 174 [2025-03-17 07:14:05,063 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 07:14:05,063 INFO L218 NwaCegarLoop]: trace histogram [12, 12, 12, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 07:14:05,063 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2025-03-17 07:14:05,063 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-17 07:14:05,063 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 07:14:05,063 INFO L85 PathProgramCache]: Analyzing trace with hash -530296832, now seen corresponding path program 1 times [2025-03-17 07:14:05,064 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 07:14:05,064 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [982710925] [2025-03-17 07:14:05,064 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 07:14:05,064 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 07:14:08,688 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 173 statements into 1 equivalence classes. [2025-03-17 07:14:08,770 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 173 of 173 statements. [2025-03-17 07:14:08,770 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 07:14:08,770 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 07:14:10,257 INFO L134 CoverageAnalysis]: Checked inductivity of 282 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 282 trivial. 0 not checked. [2025-03-17 07:14:10,258 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 07:14:10,258 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [982710925] [2025-03-17 07:14:10,258 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [982710925] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 07:14:10,258 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 07:14:10,258 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-03-17 07:14:10,258 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1907807181] [2025-03-17 07:14:10,258 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 07:14:10,259 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-03-17 07:14:10,259 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 07:14:10,259 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-03-17 07:14:10,263 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2025-03-17 07:14:10,263 INFO L87 Difference]: Start difference. First operand 196 states and 244 transitions. Second operand has 5 states, 5 states have (on average 14.0) internal successors, (70), 5 states have internal predecessors, (70), 3 states have call successors, (30), 2 states have call predecessors, (30), 1 states have return successors, (27), 3 states have call predecessors, (27), 3 states have call successors, (27) [2025-03-17 07:14:11,263 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 07:14:11,263 INFO L93 Difference]: Finished difference Result 305 states and 379 transitions. [2025-03-17 07:14:11,264 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-03-17 07:14:11,264 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.0) internal successors, (70), 5 states have internal predecessors, (70), 3 states have call successors, (30), 2 states have call predecessors, (30), 1 states have return successors, (27), 3 states have call predecessors, (27), 3 states have call successors, (27) Word has length 173 [2025-03-17 07:14:11,264 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 07:14:11,266 INFO L225 Difference]: With dead ends: 305 [2025-03-17 07:14:11,266 INFO L226 Difference]: Without dead ends: 196 [2025-03-17 07:14:11,266 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2025-03-17 07:14:11,267 INFO L435 NwaCegarLoop]: 224 mSDtfsCounter, 1 mSDsluCounter, 638 mSDsCounter, 0 mSdLazyCounter, 47 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 862 SdHoareTripleChecker+Invalid, 47 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 47 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2025-03-17 07:14:11,267 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 862 Invalid, 47 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 47 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2025-03-17 07:14:11,267 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 196 states. [2025-03-17 07:14:11,278 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 196 to 196. [2025-03-17 07:14:11,279 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 196 states, 126 states have (on average 1.1428571428571428) internal successors, (144), 128 states have internal predecessors, (144), 48 states have call successors, (48), 19 states have call predecessors, (48), 21 states have return successors, (51), 48 states have call predecessors, (51), 47 states have call successors, (51) [2025-03-17 07:14:11,280 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 196 states to 196 states and 243 transitions. [2025-03-17 07:14:11,280 INFO L78 Accepts]: Start accepts. Automaton has 196 states and 243 transitions. Word has length 173 [2025-03-17 07:14:11,281 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 07:14:11,281 INFO L471 AbstractCegarLoop]: Abstraction has 196 states and 243 transitions. [2025-03-17 07:14:11,281 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.0) internal successors, (70), 5 states have internal predecessors, (70), 3 states have call successors, (30), 2 states have call predecessors, (30), 1 states have return successors, (27), 3 states have call predecessors, (27), 3 states have call successors, (27) [2025-03-17 07:14:11,281 INFO L276 IsEmpty]: Start isEmpty. Operand 196 states and 243 transitions. [2025-03-17 07:14:11,283 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2025-03-17 07:14:11,283 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 07:14:11,283 INFO L218 NwaCegarLoop]: trace histogram [12, 12, 12, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 07:14:11,283 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2025-03-17 07:14:11,283 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-17 07:14:11,284 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 07:14:11,284 INFO L85 PathProgramCache]: Analyzing trace with hash 1086081059, now seen corresponding path program 1 times [2025-03-17 07:14:11,284 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 07:14:11,284 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1077243748] [2025-03-17 07:14:11,284 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 07:14:11,285 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 07:14:14,907 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 182 statements into 1 equivalence classes. [2025-03-17 07:14:15,092 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 182 of 182 statements. [2025-03-17 07:14:15,092 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 07:14:15,093 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat