./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/aws-c-common/aws_hash_table_swap_harness.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version e2fb8bed Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/aws-c-common/aws_hash_table_swap_harness.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 6882eeeeda078376f05bcbd4b1762ced588254a85bc5f57e76099cec8f6bde3a --- Real Ultimate output --- This is Ultimate 0.3.0-?-e2fb8be-m [2025-03-08 18:07:40,706 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-03-08 18:07:40,809 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2025-03-08 18:07:40,817 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-03-08 18:07:40,817 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-03-08 18:07:40,859 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-03-08 18:07:40,864 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-03-08 18:07:40,866 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-03-08 18:07:40,866 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-03-08 18:07:40,867 INFO L153 SettingsManager]: * Use memory slicer=true [2025-03-08 18:07:40,867 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-03-08 18:07:40,867 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-03-08 18:07:40,868 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-03-08 18:07:40,868 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-03-08 18:07:40,868 INFO L153 SettingsManager]: * Use SBE=true [2025-03-08 18:07:40,870 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-03-08 18:07:40,870 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-03-08 18:07:40,870 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-03-08 18:07:40,870 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-03-08 18:07:40,870 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-03-08 18:07:40,870 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-03-08 18:07:40,870 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-03-08 18:07:40,870 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-03-08 18:07:40,870 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-03-08 18:07:40,871 INFO L153 SettingsManager]: * Use constant arrays=true [2025-03-08 18:07:40,871 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-03-08 18:07:40,871 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-03-08 18:07:40,871 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-03-08 18:07:40,871 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-03-08 18:07:40,871 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-08 18:07:40,871 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-03-08 18:07:40,871 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-03-08 18:07:40,871 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-03-08 18:07:40,871 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-03-08 18:07:40,871 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-03-08 18:07:40,871 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-03-08 18:07:40,871 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-03-08 18:07:40,871 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-03-08 18:07:40,871 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-03-08 18:07:40,871 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-03-08 18:07:40,871 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 -> 6882eeeeda078376f05bcbd4b1762ced588254a85bc5f57e76099cec8f6bde3a [2025-03-08 18:07:41,322 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-03-08 18:07:41,332 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-03-08 18:07:41,337 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-03-08 18:07:41,339 INFO L270 PluginConnector]: Initializing CDTParser... [2025-03-08 18:07:41,339 INFO L274 PluginConnector]: CDTParser initialized [2025-03-08 18:07:41,340 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/aws-c-common/aws_hash_table_swap_harness.i [2025-03-08 18:07:43,193 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/98879091b/a617c602c9ff473eb4a725646d0b9085/FLAG5dca46e56 [2025-03-08 18:07:44,086 INFO L384 CDTParser]: Found 1 translation units. [2025-03-08 18:07:44,090 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_hash_table_swap_harness.i [2025-03-08 18:07:44,155 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/98879091b/a617c602c9ff473eb4a725646d0b9085/FLAG5dca46e56 [2025-03-08 18:07:44,186 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/98879091b/a617c602c9ff473eb4a725646d0b9085 [2025-03-08 18:07:44,191 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-03-08 18:07:44,193 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-03-08 18:07:44,194 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-03-08 18:07:44,200 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-03-08 18:07:44,208 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-03-08 18:07:44,213 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.03 06:07:44" (1/1) ... [2025-03-08 18:07:44,214 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@263ea6a4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 06:07:44, skipping insertion in model container [2025-03-08 18:07:44,214 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.03 06:07:44" (1/1) ... [2025-03-08 18:07:44,374 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-03-08 18:07:44,922 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_swap_harness.i[4493,4506] [2025-03-08 18:07:44,938 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_swap_harness.i[4553,4566] [2025-03-08 18:07:46,375 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 18:07:46,376 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 18:07:46,376 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 18:07:46,377 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 18:07:46,380 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 18:07:46,393 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 18:07:46,396 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 18:07:46,397 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 18:07:46,403 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 18:07:46,405 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 18:07:46,405 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 18:07:46,408 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 18:07:46,408 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 18:07:49,049 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 18:07:49,052 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 18:07:49,111 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 18:07:49,112 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 18:07:49,128 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 18:07:49,132 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 18:07:49,168 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 18:07:49,173 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 18:07:49,174 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 18:07:49,179 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 18:07:49,179 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 18:07:49,179 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 18:07:49,180 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 18:07:49,268 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_swap_harness.i[228095,228108] [2025-03-08 18:07:49,269 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-08 18:07:49,333 INFO L200 MainTranslator]: Completed pre-run [2025-03-08 18:07:49,357 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_swap_harness.i[4493,4506] [2025-03-08 18:07:49,368 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_swap_harness.i[4553,4566] [2025-03-08 18:07:49,445 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 18:07:49,449 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 18:07:49,449 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 18:07:49,450 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 18:07:49,450 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 18:07:49,458 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 18:07:49,464 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 18:07:49,465 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 18:07:49,465 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 18:07:49,466 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 18:07:49,466 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 18:07:49,466 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 18:07:49,466 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 18:07:49,616 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" : : "r"(pBuf) : "memory"); [7558-7569] [2025-03-08 18:07:49,775 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 18:07:49,776 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 18:07:49,876 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 18:07:49,881 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 18:07:49,884 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 18:07:49,889 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 18:07:49,902 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 18:07:49,907 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 18:07:49,907 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 18:07:49,908 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 18:07:49,908 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 18:07:49,908 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 18:07:49,908 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 18:07:49,949 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_swap_harness.i[228095,228108] [2025-03-08 18:07:49,950 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-08 18:07:50,323 INFO L204 MainTranslator]: Completed translation [2025-03-08 18:07:50,324 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 06:07:50 WrapperNode [2025-03-08 18:07:50,324 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-03-08 18:07:50,330 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-03-08 18:07:50,330 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-03-08 18:07:50,330 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-03-08 18:07:50,336 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 06:07:50" (1/1) ... [2025-03-08 18:07:50,525 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 06:07:50" (1/1) ... [2025-03-08 18:07:50,633 INFO L138 Inliner]: procedures = 763, calls = 2436, calls flagged for inlining = 67, calls inlined = 9, statements flattened = 598 [2025-03-08 18:07:50,636 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-03-08 18:07:50,641 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-03-08 18:07:50,641 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-03-08 18:07:50,641 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-03-08 18:07:50,652 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 06:07:50" (1/1) ... [2025-03-08 18:07:50,656 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 06:07:50" (1/1) ... [2025-03-08 18:07:50,673 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 06:07:50" (1/1) ... [2025-03-08 18:07:50,790 INFO L175 MemorySlicer]: Split 284 memory accesses to 9 slices as follows [2, 238, 17, 9, 2, 6, 3, 2, 5]. 84 percent of accesses are in the largest equivalence class. The 14 initializations are split as follows [2, 6, 0, 0, 0, 0, 0, 1, 5]. The 240 writes are split as follows [0, 232, 1, 3, 1, 2, 1, 0, 0]. [2025-03-08 18:07:50,794 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 06:07:50" (1/1) ... [2025-03-08 18:07:50,794 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 06:07:50" (1/1) ... [2025-03-08 18:07:50,860 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 06:07:50" (1/1) ... [2025-03-08 18:07:50,870 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 06:07:50" (1/1) ... [2025-03-08 18:07:50,899 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 06:07:50" (1/1) ... [2025-03-08 18:07:50,905 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 06:07:50" (1/1) ... [2025-03-08 18:07:50,928 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-03-08 18:07:50,936 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-03-08 18:07:50,940 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-03-08 18:07:50,941 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-03-08 18:07:50,942 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 06:07:50" (1/1) ... [2025-03-08 18:07:50,952 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-08 18:07:50,976 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-08 18:07:51,019 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2025-03-08 18:07:51,036 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2025-03-08 18:07:51,077 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#0 [2025-03-08 18:07:51,081 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#1 [2025-03-08 18:07:51,082 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#2 [2025-03-08 18:07:51,082 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#3 [2025-03-08 18:07:51,082 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#4 [2025-03-08 18:07:51,082 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#5 [2025-03-08 18:07:51,082 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#6 [2025-03-08 18:07:51,082 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#7 [2025-03-08 18:07:51,082 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#8 [2025-03-08 18:07:51,082 INFO L130 BoogieDeclarations]: Found specification of procedure save_byte_from_hash_table [2025-03-08 18:07:51,082 INFO L138 BoogieDeclarations]: Found implementation of procedure save_byte_from_hash_table [2025-03-08 18:07:51,082 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2025-03-08 18:07:51,082 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#0 [2025-03-08 18:07:51,082 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#1 [2025-03-08 18:07:51,082 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#2 [2025-03-08 18:07:51,082 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#3 [2025-03-08 18:07:51,082 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#4 [2025-03-08 18:07:51,082 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#5 [2025-03-08 18:07:51,082 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#6 [2025-03-08 18:07:51,082 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#7 [2025-03-08 18:07:51,082 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#8 [2025-03-08 18:07:51,083 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2025-03-08 18:07:51,083 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2025-03-08 18:07:51,083 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2025-03-08 18:07:51,083 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2025-03-08 18:07:51,083 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2025-03-08 18:07:51,083 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2025-03-08 18:07:51,083 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#6 [2025-03-08 18:07:51,083 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#7 [2025-03-08 18:07:51,083 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#8 [2025-03-08 18:07:51,083 INFO L130 BoogieDeclarations]: Found specification of procedure aws_raise_error [2025-03-08 18:07:51,083 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_raise_error [2025-03-08 18:07:51,083 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2025-03-08 18:07:51,083 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2025-03-08 18:07:51,083 INFO L130 BoogieDeclarations]: Found specification of procedure hash_table_state_is_valid [2025-03-08 18:07:51,083 INFO L138 BoogieDeclarations]: Found implementation of procedure hash_table_state_is_valid [2025-03-08 18:07:51,083 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2025-03-08 18:07:51,083 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-03-08 18:07:51,083 INFO L130 BoogieDeclarations]: Found specification of procedure hash_table_state_required_bytes [2025-03-08 18:07:51,083 INFO L138 BoogieDeclarations]: Found implementation of procedure hash_table_state_required_bytes [2025-03-08 18:07:51,083 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2025-03-08 18:07:51,083 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2025-03-08 18:07:51,083 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2025-03-08 18:07:51,083 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2025-03-08 18:07:51,083 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#4 [2025-03-08 18:07:51,083 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#5 [2025-03-08 18:07:51,084 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#6 [2025-03-08 18:07:51,084 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#7 [2025-03-08 18:07:51,084 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#8 [2025-03-08 18:07:51,084 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-03-08 18:07:51,084 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-03-08 18:07:51,084 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2025-03-08 18:07:51,084 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2025-03-08 18:07:51,084 INFO L130 BoogieDeclarations]: Found specification of procedure aws_mul_size_checked [2025-03-08 18:07:51,084 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_mul_size_checked [2025-03-08 18:07:51,084 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#0 [2025-03-08 18:07:51,084 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#1 [2025-03-08 18:07:51,084 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#2 [2025-03-08 18:07:51,084 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#3 [2025-03-08 18:07:51,084 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#4 [2025-03-08 18:07:51,084 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#5 [2025-03-08 18:07:51,084 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#6 [2025-03-08 18:07:51,084 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#7 [2025-03-08 18:07:51,084 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#8 [2025-03-08 18:07:51,084 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2025-03-08 18:07:51,084 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2025-03-08 18:07:51,084 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2025-03-08 18:07:51,084 INFO L130 BoogieDeclarations]: Found specification of procedure __CPROVER_overflow_plus [2025-03-08 18:07:51,084 INFO L138 BoogieDeclarations]: Found implementation of procedure __CPROVER_overflow_plus [2025-03-08 18:07:51,084 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2025-03-08 18:07:51,084 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2025-03-08 18:07:51,084 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2025-03-08 18:07:51,084 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2025-03-08 18:07:51,084 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#4 [2025-03-08 18:07:51,084 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#5 [2025-03-08 18:07:51,084 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#6 [2025-03-08 18:07:51,084 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#7 [2025-03-08 18:07:51,084 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#8 [2025-03-08 18:07:51,084 INFO L130 BoogieDeclarations]: Found specification of procedure aws_hash_table_is_valid [2025-03-08 18:07:51,084 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_hash_table_is_valid [2025-03-08 18:07:51,084 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#0 [2025-03-08 18:07:51,084 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#1 [2025-03-08 18:07:51,085 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#2 [2025-03-08 18:07:51,085 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#3 [2025-03-08 18:07:51,085 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#4 [2025-03-08 18:07:51,085 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#5 [2025-03-08 18:07:51,085 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#6 [2025-03-08 18:07:51,085 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#7 [2025-03-08 18:07:51,085 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#8 [2025-03-08 18:07:51,085 INFO L130 BoogieDeclarations]: Found specification of procedure ensure_allocated_hash_table [2025-03-08 18:07:51,085 INFO L138 BoogieDeclarations]: Found implementation of procedure ensure_allocated_hash_table [2025-03-08 18:07:51,085 INFO L130 BoogieDeclarations]: Found specification of procedure __CPROVER_overflow_mult [2025-03-08 18:07:51,089 INFO L138 BoogieDeclarations]: Found implementation of procedure __CPROVER_overflow_mult [2025-03-08 18:07:51,089 INFO L130 BoogieDeclarations]: Found specification of procedure aws_add_size_checked [2025-03-08 18:07:51,089 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_add_size_checked [2025-03-08 18:07:51,089 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_uint64_t [2025-03-08 18:07:51,089 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_uint64_t [2025-03-08 18:07:51,089 INFO L130 BoogieDeclarations]: Found specification of procedure check_hash_table_unchanged [2025-03-08 18:07:51,089 INFO L138 BoogieDeclarations]: Found implementation of procedure check_hash_table_unchanged [2025-03-08 18:07:51,089 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2025-03-08 18:07:51,089 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2025-03-08 18:07:51,089 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2025-03-08 18:07:51,089 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2025-03-08 18:07:51,089 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2025-03-08 18:07:51,089 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2025-03-08 18:07:51,089 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#6 [2025-03-08 18:07:51,089 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#7 [2025-03-08 18:07:51,089 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#8 [2025-03-08 18:07:51,089 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-03-08 18:07:51,089 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2025-03-08 18:07:51,089 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2025-03-08 18:07:51,089 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2025-03-08 18:07:51,089 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2025-03-08 18:07:51,089 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2025-03-08 18:07:51,089 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#6 [2025-03-08 18:07:51,089 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#7 [2025-03-08 18:07:51,090 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#8 [2025-03-08 18:07:51,090 INFO L130 BoogieDeclarations]: Found specification of procedure aws_is_power_of_two [2025-03-08 18:07:51,090 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_is_power_of_two [2025-03-08 18:07:51,667 INFO L256 CfgBuilder]: Building ICFG [2025-03-08 18:07:51,669 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2025-03-08 18:07:51,748 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L6947: havoc #t~malloc588.base, #t~malloc588.offset; [2025-03-08 18:07:51,819 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L2590: havoc #t~ret57#1; [2025-03-08 18:07:51,830 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L266: havoc #t~nondet9; [2025-03-08 18:07:51,999 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L263: havoc nondet_size_t_#t~nondet6#1; [2025-03-08 18:07:52,134 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L10103: call ULTIMATE.dealloc(~#elemsize~0.base, ~#elemsize~0.offset);havoc ~#elemsize~0.base, ~#elemsize~0.offset; [2025-03-08 18:07:52,183 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L9990: havoc #t~mem1489.base, #t~mem1489.offset;havoc #t~short1490;havoc #t~mem1491.base, #t~mem1491.offset;havoc #t~ret1492;havoc #t~short1493; [2025-03-08 18:07:52,289 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L2630: havoc #t~bitwise60;havoc #t~short61; [2025-03-08 18:07:52,320 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L2617: havoc #t~ret59#1; [2025-03-08 18:07:58,383 INFO L? ?]: Removed 117 outVars from TransFormulas that were not future-live. [2025-03-08 18:07:58,384 INFO L307 CfgBuilder]: Performing block encoding [2025-03-08 18:07:58,419 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-03-08 18:07:58,420 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2025-03-08 18:07:58,420 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.03 06:07:58 BoogieIcfgContainer [2025-03-08 18:07:58,420 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-03-08 18:07:58,427 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-03-08 18:07:58,429 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-03-08 18:07:58,436 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-03-08 18:07:58,441 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.03 06:07:44" (1/3) ... [2025-03-08 18:07:58,441 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1ce60920 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.03 06:07:58, skipping insertion in model container [2025-03-08 18:07:58,441 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 06:07:50" (2/3) ... [2025-03-08 18:07:58,442 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1ce60920 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.03 06:07:58, skipping insertion in model container [2025-03-08 18:07:58,442 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.03 06:07:58" (3/3) ... [2025-03-08 18:07:58,443 INFO L128 eAbstractionObserver]: Analyzing ICFG aws_hash_table_swap_harness.i [2025-03-08 18:07:58,473 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-03-08 18:07:58,476 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG aws_hash_table_swap_harness.i that has 17 procedures, 142 locations, 1 initial locations, 0 loop locations, and 1 error locations. [2025-03-08 18:07:58,611 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-03-08 18:07:58,632 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;@23fea144, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-03-08 18:07:58,633 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2025-03-08 18:07:58,641 INFO L276 IsEmpty]: Start isEmpty. Operand has 142 states, 89 states have (on average 1.202247191011236) internal successors, (107), 94 states have internal predecessors, (107), 35 states have call successors, (35), 16 states have call predecessors, (35), 16 states have return successors, (35), 35 states have call predecessors, (35), 35 states have call successors, (35) [2025-03-08 18:07:58,656 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2025-03-08 18:07:58,657 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 18:07:58,657 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-08 18:07:58,658 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-08 18:07:58,674 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 18:07:58,674 INFO L85 PathProgramCache]: Analyzing trace with hash -1081493422, now seen corresponding path program 1 times [2025-03-08 18:07:58,687 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 18:07:58,691 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [242641114] [2025-03-08 18:07:58,691 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 18:07:58,691 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 18:08:05,715 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 25 statements into 1 equivalence classes. [2025-03-08 18:08:06,342 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 25 of 25 statements. [2025-03-08 18:08:06,343 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 18:08:06,343 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 18:08:07,347 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-08 18:08:07,348 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 18:08:07,352 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [242641114] [2025-03-08 18:08:07,353 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [242641114] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 18:08:07,353 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 18:08:07,353 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-08 18:08:07,354 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1788852696] [2025-03-08 18:08:07,355 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 18:08:07,362 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2025-03-08 18:08:07,363 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 18:08:07,390 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2025-03-08 18:08:07,391 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-03-08 18:08:07,393 INFO L87 Difference]: Start difference. First operand has 142 states, 89 states have (on average 1.202247191011236) internal successors, (107), 94 states have internal predecessors, (107), 35 states have call successors, (35), 16 states have call predecessors, (35), 16 states have return successors, (35), 35 states have call predecessors, (35), 35 states have call successors, (35) Second operand has 2 states, 2 states have (on average 10.0) internal successors, (20), 2 states have internal predecessors, (20), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2025-03-08 18:08:07,469 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 18:08:07,472 INFO L93 Difference]: Finished difference Result 280 states and 374 transitions. [2025-03-08 18:08:07,477 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-03-08 18:08:07,478 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 10.0) internal successors, (20), 2 states have internal predecessors, (20), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) Word has length 25 [2025-03-08 18:08:07,478 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 18:08:07,491 INFO L225 Difference]: With dead ends: 280 [2025-03-08 18:08:07,492 INFO L226 Difference]: Without dead ends: 137 [2025-03-08 18:08:07,498 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-03-08 18:08:07,502 INFO L435 NwaCegarLoop]: 173 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, 173 SdHoareTripleChecker+Invalid, 1 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-03-08 18:08:07,503 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 173 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-08 18:08:07,517 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 137 states. [2025-03-08 18:08:07,543 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 137 to 137. [2025-03-08 18:08:07,549 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 137 states, 85 states have (on average 1.1647058823529413) internal successors, (99), 89 states have internal predecessors, (99), 35 states have call successors, (35), 16 states have call predecessors, (35), 16 states have return successors, (34), 34 states have call predecessors, (34), 34 states have call successors, (34) [2025-03-08 18:08:07,554 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 137 states to 137 states and 168 transitions. [2025-03-08 18:08:07,556 INFO L78 Accepts]: Start accepts. Automaton has 137 states and 168 transitions. Word has length 25 [2025-03-08 18:08:07,557 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 18:08:07,557 INFO L471 AbstractCegarLoop]: Abstraction has 137 states and 168 transitions. [2025-03-08 18:08:07,557 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 10.0) internal successors, (20), 2 states have internal predecessors, (20), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2025-03-08 18:08:07,557 INFO L276 IsEmpty]: Start isEmpty. Operand 137 states and 168 transitions. [2025-03-08 18:08:07,559 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2025-03-08 18:08:07,560 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 18:08:07,560 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-08 18:08:07,561 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-03-08 18:08:07,561 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-08 18:08:07,561 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 18:08:07,561 INFO L85 PathProgramCache]: Analyzing trace with hash -2078565775, now seen corresponding path program 1 times [2025-03-08 18:08:07,562 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 18:08:07,562 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1553024070] [2025-03-08 18:08:07,562 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 18:08:07,562 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 18:08:11,828 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 25 statements into 1 equivalence classes. [2025-03-08 18:08:11,952 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 25 of 25 statements. [2025-03-08 18:08:11,953 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 18:08:11,953 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 18:08:12,391 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-08 18:08:12,392 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 18:08:12,392 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1553024070] [2025-03-08 18:08:12,393 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1553024070] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 18:08:12,393 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 18:08:12,393 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-08 18:08:12,393 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [838488946] [2025-03-08 18:08:12,393 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 18:08:12,394 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-08 18:08:12,394 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 18:08:12,395 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-08 18:08:12,396 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-08 18:08:12,397 INFO L87 Difference]: Start difference. First operand 137 states and 168 transitions. Second operand has 3 states, 3 states have (on average 6.666666666666667) internal successors, (20), 3 states have internal predecessors, (20), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2025-03-08 18:08:12,491 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 18:08:12,493 INFO L93 Difference]: Finished difference Result 192 states and 238 transitions. [2025-03-08 18:08:12,493 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-08 18:08:12,494 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 6.666666666666667) internal successors, (20), 3 states have internal predecessors, (20), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 25 [2025-03-08 18:08:12,495 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 18:08:12,496 INFO L225 Difference]: With dead ends: 192 [2025-03-08 18:08:12,498 INFO L226 Difference]: Without dead ends: 148 [2025-03-08 18:08:12,498 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-08 18:08:12,499 INFO L435 NwaCegarLoop]: 166 mSDtfsCounter, 2 mSDsluCounter, 162 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 328 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-03-08 18:08:12,500 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 328 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-08 18:08:12,500 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 148 states. [2025-03-08 18:08:12,514 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 148 to 148. [2025-03-08 18:08:12,516 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 148 states, 91 states have (on average 1.164835164835165) internal successors, (106), 95 states have internal predecessors, (106), 40 states have call successors, (40), 16 states have call predecessors, (40), 16 states have return successors, (39), 39 states have call predecessors, (39), 39 states have call successors, (39) [2025-03-08 18:08:12,517 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 148 states to 148 states and 185 transitions. [2025-03-08 18:08:12,520 INFO L78 Accepts]: Start accepts. Automaton has 148 states and 185 transitions. Word has length 25 [2025-03-08 18:08:12,521 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 18:08:12,521 INFO L471 AbstractCegarLoop]: Abstraction has 148 states and 185 transitions. [2025-03-08 18:08:12,521 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.666666666666667) internal successors, (20), 3 states have internal predecessors, (20), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2025-03-08 18:08:12,521 INFO L276 IsEmpty]: Start isEmpty. Operand 148 states and 185 transitions. [2025-03-08 18:08:12,522 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2025-03-08 18:08:12,523 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 18:08:12,523 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-08 18:08:12,523 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-03-08 18:08:12,523 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-08 18:08:12,524 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 18:08:12,527 INFO L85 PathProgramCache]: Analyzing trace with hash -1629139524, now seen corresponding path program 1 times [2025-03-08 18:08:12,527 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 18:08:12,527 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1044579651] [2025-03-08 18:08:12,527 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 18:08:12,527 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 18:08:16,336 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 26 statements into 1 equivalence classes. [2025-03-08 18:08:16,447 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 26 of 26 statements. [2025-03-08 18:08:16,448 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 18:08:16,448 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 18:08:16,870 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-08 18:08:16,871 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 18:08:16,873 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1044579651] [2025-03-08 18:08:16,873 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1044579651] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 18:08:16,873 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 18:08:16,873 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-08 18:08:16,873 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [288173513] [2025-03-08 18:08:16,873 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 18:08:16,874 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-08 18:08:16,874 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 18:08:16,874 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-08 18:08:16,874 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-08 18:08:16,874 INFO L87 Difference]: Start difference. First operand 148 states and 185 transitions. Second operand has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2025-03-08 18:08:16,964 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 18:08:16,964 INFO L93 Difference]: Finished difference Result 202 states and 250 transitions. [2025-03-08 18:08:16,965 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-08 18:08:16,965 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 26 [2025-03-08 18:08:16,965 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 18:08:16,967 INFO L225 Difference]: With dead ends: 202 [2025-03-08 18:08:16,967 INFO L226 Difference]: Without dead ends: 157 [2025-03-08 18:08:16,968 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-08 18:08:16,969 INFO L435 NwaCegarLoop]: 167 mSDtfsCounter, 2 mSDsluCounter, 163 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 330 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-03-08 18:08:16,970 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 330 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-08 18:08:16,970 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 157 states. [2025-03-08 18:08:16,978 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 157 to 157. [2025-03-08 18:08:16,978 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 157 states, 96 states have (on average 1.1458333333333333) internal successors, (110), 99 states have internal predecessors, (110), 44 states have call successors, (44), 16 states have call predecessors, (44), 16 states have return successors, (42), 42 states have call predecessors, (42), 42 states have call successors, (42) [2025-03-08 18:08:16,980 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 157 states to 157 states and 196 transitions. [2025-03-08 18:08:16,980 INFO L78 Accepts]: Start accepts. Automaton has 157 states and 196 transitions. Word has length 26 [2025-03-08 18:08:16,980 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 18:08:16,980 INFO L471 AbstractCegarLoop]: Abstraction has 157 states and 196 transitions. [2025-03-08 18:08:16,980 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2025-03-08 18:08:16,980 INFO L276 IsEmpty]: Start isEmpty. Operand 157 states and 196 transitions. [2025-03-08 18:08:16,983 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2025-03-08 18:08:16,984 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 18:08:16,984 INFO L218 NwaCegarLoop]: trace histogram [7, 7, 7, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-08 18:08:16,984 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2025-03-08 18:08:16,984 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-08 18:08:16,985 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 18:08:16,985 INFO L85 PathProgramCache]: Analyzing trace with hash -1327688218, now seen corresponding path program 1 times [2025-03-08 18:08:16,985 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 18:08:16,985 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1359030882] [2025-03-08 18:08:16,985 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 18:08:16,985 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 18:08:21,161 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 129 statements into 1 equivalence classes. [2025-03-08 18:08:21,306 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 129 of 129 statements. [2025-03-08 18:08:21,306 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 18:08:21,306 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 18:08:23,597 INFO L134 CoverageAnalysis]: Checked inductivity of 106 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 99 trivial. 0 not checked. [2025-03-08 18:08:23,598 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 18:08:23,598 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1359030882] [2025-03-08 18:08:23,598 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1359030882] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-08 18:08:23,598 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [897301300] [2025-03-08 18:08:23,600 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 18:08:23,601 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-08 18:08:23,601 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-08 18:08:23,604 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-08 18:08:23,606 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2025-03-08 18:08:28,622 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 129 statements into 1 equivalence classes. [2025-03-08 18:08:29,104 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 129 of 129 statements. [2025-03-08 18:08:29,104 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 18:08:29,104 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 18:08:29,123 INFO L256 TraceCheckSpWp]: Trace formula consists of 4485 conjuncts, 7 conjuncts are in the unsatisfiable core [2025-03-08 18:08:29,132 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-08 18:08:29,247 INFO L134 CoverageAnalysis]: Checked inductivity of 106 backedges. 54 proven. 0 refuted. 0 times theorem prover too weak. 52 trivial. 0 not checked. [2025-03-08 18:08:29,247 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-08 18:08:29,247 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [897301300] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 18:08:29,247 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-03-08 18:08:29,247 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 5 [2025-03-08 18:08:29,247 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [573046367] [2025-03-08 18:08:29,247 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 18:08:29,248 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-03-08 18:08:29,248 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 18:08:29,248 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-03-08 18:08:29,248 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-03-08 18:08:29,249 INFO L87 Difference]: Start difference. First operand 157 states and 196 transitions. Second operand has 5 states, 5 states have (on average 13.8) internal successors, (69), 5 states have internal predecessors, (69), 2 states have call successors, (19), 2 states have call predecessors, (19), 3 states have return successors, (19), 3 states have call predecessors, (19), 2 states have call successors, (19) [2025-03-08 18:08:29,440 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 18:08:29,443 INFO L93 Difference]: Finished difference Result 313 states and 397 transitions. [2025-03-08 18:08:29,447 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-03-08 18:08:29,447 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.8) internal successors, (69), 5 states have internal predecessors, (69), 2 states have call successors, (19), 2 states have call predecessors, (19), 3 states have return successors, (19), 3 states have call predecessors, (19), 2 states have call successors, (19) Word has length 129 [2025-03-08 18:08:29,448 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 18:08:29,450 INFO L225 Difference]: With dead ends: 313 [2025-03-08 18:08:29,450 INFO L226 Difference]: Without dead ends: 162 [2025-03-08 18:08:29,451 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 133 GetRequests, 130 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-03-08 18:08:29,454 INFO L435 NwaCegarLoop]: 164 mSDtfsCounter, 0 mSDsluCounter, 488 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 652 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2025-03-08 18:08:29,454 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 652 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2025-03-08 18:08:29,454 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 162 states. [2025-03-08 18:08:29,461 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 162 to 162. [2025-03-08 18:08:29,462 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 162 states, 100 states have (on average 1.14) internal successors, (114), 103 states have internal predecessors, (114), 44 states have call successors, (44), 16 states have call predecessors, (44), 17 states have return successors, (43), 43 states have call predecessors, (43), 42 states have call successors, (43) [2025-03-08 18:08:29,463 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 162 states to 162 states and 201 transitions. [2025-03-08 18:08:29,463 INFO L78 Accepts]: Start accepts. Automaton has 162 states and 201 transitions. Word has length 129 [2025-03-08 18:08:29,463 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 18:08:29,463 INFO L471 AbstractCegarLoop]: Abstraction has 162 states and 201 transitions. [2025-03-08 18:08:29,463 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.8) internal successors, (69), 5 states have internal predecessors, (69), 2 states have call successors, (19), 2 states have call predecessors, (19), 3 states have return successors, (19), 3 states have call predecessors, (19), 2 states have call successors, (19) [2025-03-08 18:08:29,464 INFO L276 IsEmpty]: Start isEmpty. Operand 162 states and 201 transitions. [2025-03-08 18:08:29,465 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2025-03-08 18:08:29,465 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 18:08:29,465 INFO L218 NwaCegarLoop]: trace histogram [7, 7, 7, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-08 18:08:29,482 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2025-03-08 18:08:29,666 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-08 18:08:29,666 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-08 18:08:29,667 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 18:08:29,667 INFO L85 PathProgramCache]: Analyzing trace with hash 246150362, now seen corresponding path program 1 times [2025-03-08 18:08:29,667 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 18:08:29,667 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1816564746] [2025-03-08 18:08:29,667 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 18:08:29,667 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 18:08:33,826 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 140 statements into 1 equivalence classes. [2025-03-08 18:08:34,091 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 140 of 140 statements. [2025-03-08 18:08:34,094 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 18:08:34,094 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 18:08:41,665 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 106 trivial. 0 not checked. [2025-03-08 18:08:41,667 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 18:08:41,668 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1816564746] [2025-03-08 18:08:41,668 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1816564746] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-08 18:08:41,668 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [808791221] [2025-03-08 18:08:41,668 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 18:08:41,668 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-08 18:08:41,668 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-08 18:08:41,670 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-08 18:08:41,672 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2025-03-08 18:08:46,274 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 140 statements into 1 equivalence classes. [2025-03-08 18:08:47,004 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 140 of 140 statements. [2025-03-08 18:08:47,005 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 18:08:47,005 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 18:08:47,030 INFO L256 TraceCheckSpWp]: Trace formula consists of 4491 conjuncts, 64 conjuncts are in the unsatisfiable core [2025-03-08 18:08:47,044 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-08 18:08:47,683 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2025-03-08 18:08:51,655 INFO L349 Elim1Store]: treesize reduction 34, result has 44.3 percent of original size [2025-03-08 18:08:51,655 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 4 new quantified variables, introduced 5 case distinctions, treesize of input 64 treesize of output 95 [2025-03-08 18:08:51,676 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 22 [2025-03-08 18:08:51,737 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 9 [2025-03-08 18:08:51,879 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 9 [2025-03-08 18:08:52,109 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 8 [2025-03-08 18:08:52,131 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12 [2025-03-08 18:08:53,921 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 75 proven. 0 refuted. 0 times theorem prover too weak. 37 trivial. 0 not checked. [2025-03-08 18:08:53,922 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-08 18:08:53,922 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [808791221] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 18:08:53,922 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-03-08 18:08:53,922 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [11] total 19 [2025-03-08 18:08:53,922 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [325884710] [2025-03-08 18:08:53,922 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 18:08:53,923 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2025-03-08 18:08:53,923 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 18:08:53,923 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2025-03-08 18:08:53,923 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=287, Unknown=0, NotChecked=0, Total=342 [2025-03-08 18:08:53,924 INFO L87 Difference]: Start difference. First operand 162 states and 201 transitions. Second operand has 15 states, 15 states have (on average 5.333333333333333) internal successors, (80), 14 states have internal predecessors, (80), 8 states have call successors, (23), 3 states have call predecessors, (23), 5 states have return successors, (22), 8 states have call predecessors, (22), 7 states have call successors, (22) [2025-03-08 18:09:02,404 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 18:09:02,404 INFO L93 Difference]: Finished difference Result 398 states and 492 transitions. [2025-03-08 18:09:02,405 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2025-03-08 18:09:02,405 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 5.333333333333333) internal successors, (80), 14 states have internal predecessors, (80), 8 states have call successors, (23), 3 states have call predecessors, (23), 5 states have return successors, (22), 8 states have call predecessors, (22), 7 states have call successors, (22) Word has length 140 [2025-03-08 18:09:02,405 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 18:09:02,408 INFO L225 Difference]: With dead ends: 398 [2025-03-08 18:09:02,408 INFO L226 Difference]: Without dead ends: 244 [2025-03-08 18:09:02,410 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 157 GetRequests, 125 SyntacticMatches, 8 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 106 ImplicationChecksByTransitivity, 5.9s TimeCoverageRelationStatistics Valid=101, Invalid=549, Unknown=0, NotChecked=0, Total=650 [2025-03-08 18:09:02,412 INFO L435 NwaCegarLoop]: 217 mSDtfsCounter, 106 mSDsluCounter, 2021 mSDsCounter, 0 mSdLazyCounter, 855 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 118 SdHoareTripleChecker+Valid, 2238 SdHoareTripleChecker+Invalid, 875 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 855 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.3s IncrementalHoareTripleChecker+Time [2025-03-08 18:09:02,412 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [118 Valid, 2238 Invalid, 875 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 855 Invalid, 0 Unknown, 0 Unchecked, 7.3s Time] [2025-03-08 18:09:02,414 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 244 states. [2025-03-08 18:09:02,450 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 244 to 240. [2025-03-08 18:09:02,454 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 240 states, 152 states have (on average 1.138157894736842) internal successors, (173), 156 states have internal predecessors, (173), 58 states have call successors, (58), 27 states have call predecessors, (58), 29 states have return successors, (60), 57 states have call predecessors, (60), 56 states have call successors, (60) [2025-03-08 18:09:02,459 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 240 states to 240 states and 291 transitions. [2025-03-08 18:09:02,460 INFO L78 Accepts]: Start accepts. Automaton has 240 states and 291 transitions. Word has length 140 [2025-03-08 18:09:02,463 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 18:09:02,463 INFO L471 AbstractCegarLoop]: Abstraction has 240 states and 291 transitions. [2025-03-08 18:09:02,463 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 5.333333333333333) internal successors, (80), 14 states have internal predecessors, (80), 8 states have call successors, (23), 3 states have call predecessors, (23), 5 states have return successors, (22), 8 states have call predecessors, (22), 7 states have call successors, (22) [2025-03-08 18:09:02,463 INFO L276 IsEmpty]: Start isEmpty. Operand 240 states and 291 transitions. [2025-03-08 18:09:02,465 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2025-03-08 18:09:02,465 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 18:09:02,465 INFO L218 NwaCegarLoop]: trace histogram [7, 7, 7, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-08 18:09:02,512 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2025-03-08 18:09:02,671 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-08 18:09:02,671 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-08 18:09:02,672 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 18:09:02,672 INFO L85 PathProgramCache]: Analyzing trace with hash -196676230, now seen corresponding path program 1 times [2025-03-08 18:09:02,672 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 18:09:02,672 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [40579954] [2025-03-08 18:09:02,672 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 18:09:02,672 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 18:09:06,981 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 140 statements into 1 equivalence classes. [2025-03-08 18:09:07,206 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 140 of 140 statements. [2025-03-08 18:09:07,210 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 18:09:07,211 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 18:09:09,328 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 106 trivial. 0 not checked. [2025-03-08 18:09:09,328 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 18:09:09,328 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [40579954] [2025-03-08 18:09:09,328 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [40579954] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-08 18:09:09,328 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1190851224] [2025-03-08 18:09:09,329 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 18:09:09,329 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-08 18:09:09,329 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-08 18:09:09,332 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-08 18:09:09,333 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2025-03-08 18:09:15,068 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 140 statements into 1 equivalence classes. [2025-03-08 18:09:15,668 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 140 of 140 statements. [2025-03-08 18:09:15,668 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 18:09:15,668 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 18:09:15,687 INFO L256 TraceCheckSpWp]: Trace formula consists of 4481 conjuncts, 6 conjuncts are in the unsatisfiable core [2025-03-08 18:09:15,692 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-08 18:09:16,304 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 76 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2025-03-08 18:09:16,305 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-08 18:09:16,305 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1190851224] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 18:09:16,305 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-03-08 18:09:16,305 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [5] total 9 [2025-03-08 18:09:16,305 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1936835615] [2025-03-08 18:09:16,305 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 18:09:16,306 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-08 18:09:16,306 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 18:09:16,306 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-08 18:09:16,309 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2025-03-08 18:09:16,310 INFO L87 Difference]: Start difference. First operand 240 states and 291 transitions. Second operand has 6 states, 6 states have (on average 13.333333333333334) internal successors, (80), 6 states have internal predecessors, (80), 3 states have call successors, (23), 2 states have call predecessors, (23), 3 states have return successors, (22), 3 states have call predecessors, (22), 3 states have call successors, (22) [2025-03-08 18:09:17,160 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 18:09:17,161 INFO L93 Difference]: Finished difference Result 396 states and 486 transitions. [2025-03-08 18:09:17,161 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-08 18:09:17,162 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 13.333333333333334) internal successors, (80), 6 states have internal predecessors, (80), 3 states have call successors, (23), 2 states have call predecessors, (23), 3 states have return successors, (22), 3 states have call predecessors, (22), 3 states have call successors, (22) Word has length 140 [2025-03-08 18:09:17,162 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 18:09:17,167 INFO L225 Difference]: With dead ends: 396 [2025-03-08 18:09:17,167 INFO L226 Difference]: Without dead ends: 245 [2025-03-08 18:09:17,168 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 147 GetRequests, 137 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=36, Invalid=96, Unknown=0, NotChecked=0, Total=132 [2025-03-08 18:09:17,169 INFO L435 NwaCegarLoop]: 151 mSDtfsCounter, 169 mSDsluCounter, 277 mSDsCounter, 0 mSdLazyCounter, 63 mSolverCounterSat, 35 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 169 SdHoareTripleChecker+Valid, 428 SdHoareTripleChecker+Invalid, 98 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 35 IncrementalHoareTripleChecker+Valid, 63 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2025-03-08 18:09:17,170 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [169 Valid, 428 Invalid, 98 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [35 Valid, 63 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2025-03-08 18:09:17,174 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 245 states. [2025-03-08 18:09:17,217 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 245 to 245. [2025-03-08 18:09:17,218 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 245 states, 155 states have (on average 1.135483870967742) internal successors, (176), 160 states have internal predecessors, (176), 59 states have call successors, (59), 27 states have call predecessors, (59), 30 states have return successors, (65), 58 states have call predecessors, (65), 57 states have call successors, (65) [2025-03-08 18:09:17,222 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 245 states to 245 states and 300 transitions. [2025-03-08 18:09:17,223 INFO L78 Accepts]: Start accepts. Automaton has 245 states and 300 transitions. Word has length 140 [2025-03-08 18:09:17,224 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 18:09:17,224 INFO L471 AbstractCegarLoop]: Abstraction has 245 states and 300 transitions. [2025-03-08 18:09:17,224 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 13.333333333333334) internal successors, (80), 6 states have internal predecessors, (80), 3 states have call successors, (23), 2 states have call predecessors, (23), 3 states have return successors, (22), 3 states have call predecessors, (22), 3 states have call successors, (22) [2025-03-08 18:09:17,224 INFO L276 IsEmpty]: Start isEmpty. Operand 245 states and 300 transitions. [2025-03-08 18:09:17,227 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2025-03-08 18:09:17,227 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 18:09:17,230 INFO L218 NwaCegarLoop]: trace histogram [7, 7, 7, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-08 18:09:17,253 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2025-03-08 18:09:17,431 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-08 18:09:17,431 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-08 18:09:17,432 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 18:09:17,432 INFO L85 PathProgramCache]: Analyzing trace with hash 1581891786, now seen corresponding path program 1 times [2025-03-08 18:09:17,432 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 18:09:17,432 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [602426729] [2025-03-08 18:09:17,432 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 18:09:17,432 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 18:09:21,246 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 146 statements into 1 equivalence classes. [2025-03-08 18:09:21,360 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 146 of 146 statements. [2025-03-08 18:09:21,363 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 18:09:21,363 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 18:09:24,896 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 107 trivial. 0 not checked. [2025-03-08 18:09:24,897 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 18:09:24,897 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [602426729] [2025-03-08 18:09:24,897 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [602426729] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-08 18:09:24,897 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1892558398] [2025-03-08 18:09:24,897 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 18:09:24,897 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-08 18:09:24,901 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-08 18:09:24,903 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-08 18:09:24,904 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process