./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/aws-c-common/aws_hash_table_move_harness.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 798a7b37 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_move_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 8f8d49a5761bf3d84140233b4dcef84d471a160de32d47830642b1223a2a4e54 --- Real Ultimate output --- This is Ultimate 0.3.0-?-798a7b3-m [2025-03-04 02:55:50,967 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-03-04 02:55:51,023 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2025-03-04 02:55:51,030 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-03-04 02:55:51,032 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-03-04 02:55:51,058 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-03-04 02:55:51,059 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-03-04 02:55:51,059 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-03-04 02:55:51,059 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-03-04 02:55:51,059 INFO L153 SettingsManager]: * Use memory slicer=true [2025-03-04 02:55:51,059 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-03-04 02:55:51,059 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-03-04 02:55:51,060 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-03-04 02:55:51,061 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-03-04 02:55:51,061 INFO L153 SettingsManager]: * Use SBE=true [2025-03-04 02:55:51,062 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-03-04 02:55:51,062 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-03-04 02:55:51,062 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-03-04 02:55:51,062 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-03-04 02:55:51,062 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-03-04 02:55:51,062 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-03-04 02:55:51,062 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-03-04 02:55:51,063 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-03-04 02:55:51,063 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-03-04 02:55:51,063 INFO L153 SettingsManager]: * Use constant arrays=true [2025-03-04 02:55:51,063 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-03-04 02:55:51,063 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-03-04 02:55:51,063 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-03-04 02:55:51,063 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-03-04 02:55:51,063 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-04 02:55:51,064 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-03-04 02:55:51,064 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-03-04 02:55:51,064 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-03-04 02:55:51,064 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-03-04 02:55:51,064 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-03-04 02:55:51,064 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-03-04 02:55:51,064 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-03-04 02:55:51,064 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-03-04 02:55:51,064 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-03-04 02:55:51,064 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-03-04 02:55:51,064 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 -> 8f8d49a5761bf3d84140233b4dcef84d471a160de32d47830642b1223a2a4e54 [2025-03-04 02:55:51,308 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-03-04 02:55:51,317 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-03-04 02:55:51,319 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-03-04 02:55:51,319 INFO L270 PluginConnector]: Initializing CDTParser... [2025-03-04 02:55:51,320 INFO L274 PluginConnector]: CDTParser initialized [2025-03-04 02:55:51,320 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/aws-c-common/aws_hash_table_move_harness.i [2025-03-04 02:55:52,446 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/956ac4326/c1983f626b06423b8dfc33b628a20aac/FLAG33b233d4e [2025-03-04 02:55:52,983 INFO L384 CDTParser]: Found 1 translation units. [2025-03-04 02:55:52,984 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_hash_table_move_harness.i [2025-03-04 02:55:53,027 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/956ac4326/c1983f626b06423b8dfc33b628a20aac/FLAG33b233d4e [2025-03-04 02:55:53,037 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/956ac4326/c1983f626b06423b8dfc33b628a20aac [2025-03-04 02:55:53,039 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-03-04 02:55:53,040 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-03-04 02:55:53,041 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-03-04 02:55:53,041 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-03-04 02:55:53,045 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-03-04 02:55:53,046 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.03 02:55:53" (1/1) ... [2025-03-04 02:55:53,048 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5a382a1d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 02:55:53, skipping insertion in model container [2025-03-04 02:55:53,048 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.03 02:55:53" (1/1) ... [2025-03-04 02:55:53,125 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-03-04 02:55:53,345 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_move_harness.i[4493,4506] [2025-03-04 02:55:53,353 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_move_harness.i[4553,4566] [2025-03-04 02:55:54,099 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:55:54,100 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:55:54,100 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:55:54,100 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:55:54,101 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:55:54,110 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:55:54,111 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:55:54,113 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:55:54,113 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:55:54,115 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:55:54,115 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:55:54,116 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:55:54,116 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:55:55,025 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:55:55,026 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:55:55,064 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:55:55,065 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:55:55,073 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:55:55,074 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:55:55,102 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:55:55,103 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:55:55,104 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:55:55,104 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:55:55,104 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:55:55,104 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:55:55,105 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:55:55,184 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_move_harness.i[227509,227522] [2025-03-04 02:55:55,185 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-04 02:55:55,221 INFO L200 MainTranslator]: Completed pre-run [2025-03-04 02:55:55,238 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_move_harness.i[4493,4506] [2025-03-04 02:55:55,239 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_move_harness.i[4553,4566] [2025-03-04 02:55:55,289 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:55:55,290 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:55:55,290 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:55:55,290 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:55:55,290 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:55:55,298 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:55:55,298 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:55:55,299 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:55:55,299 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:55:55,299 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:55:55,300 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:55:55,300 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:55:55,300 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:55:55,343 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" : : "r"(pBuf) : "memory"); [7558-7569] [2025-03-04 02:55:55,415 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:55:55,415 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:55:55,421 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:55:55,422 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:55:55,423 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:55:55,424 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:55:55,432 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:55:55,433 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:55:55,434 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:55:55,434 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:55:55,434 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:55:55,435 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:55:55,435 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:55:55,451 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_move_harness.i[227509,227522] [2025-03-04 02:55:55,453 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-04 02:55:55,640 INFO L204 MainTranslator]: Completed translation [2025-03-04 02:55:55,641 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 02:55:55 WrapperNode [2025-03-04 02:55:55,642 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-03-04 02:55:55,643 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-03-04 02:55:55,643 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-03-04 02:55:55,643 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-03-04 02:55:55,647 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 02:55:55" (1/1) ... [2025-03-04 02:55:55,706 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 02:55:55" (1/1) ... [2025-03-04 02:55:55,748 INFO L138 Inliner]: procedures = 763, calls = 2427, calls flagged for inlining = 70, calls inlined = 12, statements flattened = 620 [2025-03-04 02:55:55,749 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-03-04 02:55:55,750 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-03-04 02:55:55,750 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-03-04 02:55:55,750 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-03-04 02:55:55,756 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 02:55:55" (1/1) ... [2025-03-04 02:55:55,756 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 02:55:55" (1/1) ... [2025-03-04 02:55:55,763 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 02:55:55" (1/1) ... [2025-03-04 02:55:55,817 INFO L175 MemorySlicer]: Split 281 memory accesses to 8 slices as follows [2, 238, 6, 3, 8, 2, 17, 5]. 85 percent of accesses are in the largest equivalence class. The 13 initializations are split as follows [2, 6, 0, 0, 0, 0, 0, 5]. The 240 writes are split as follows [0, 232, 2, 1, 3, 1, 1, 0]. [2025-03-04 02:55:55,818 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 02:55:55" (1/1) ... [2025-03-04 02:55:55,818 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 02:55:55" (1/1) ... [2025-03-04 02:55:55,840 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 02:55:55" (1/1) ... [2025-03-04 02:55:55,842 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 02:55:55" (1/1) ... [2025-03-04 02:55:55,851 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 02:55:55" (1/1) ... [2025-03-04 02:55:55,854 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 02:55:55" (1/1) ... [2025-03-04 02:55:55,867 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-03-04 02:55:55,867 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-03-04 02:55:55,867 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-03-04 02:55:55,867 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-03-04 02:55:55,872 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 02:55:55" (1/1) ... [2025-03-04 02:55:55,878 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-04 02:55:55,886 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 02:55:55,901 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) [2025-03-04 02:55:55,907 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 [2025-03-04 02:55:55,930 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#0 [2025-03-04 02:55:55,930 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#1 [2025-03-04 02:55:55,930 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#2 [2025-03-04 02:55:55,930 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#3 [2025-03-04 02:55:55,930 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#4 [2025-03-04 02:55:55,930 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#5 [2025-03-04 02:55:55,931 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#6 [2025-03-04 02:55:55,931 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#7 [2025-03-04 02:55:55,931 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2025-03-04 02:55:55,931 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#0 [2025-03-04 02:55:55,931 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#1 [2025-03-04 02:55:55,931 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#2 [2025-03-04 02:55:55,932 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#3 [2025-03-04 02:55:55,932 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#4 [2025-03-04 02:55:55,932 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#5 [2025-03-04 02:55:55,932 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#6 [2025-03-04 02:55:55,932 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#7 [2025-03-04 02:55:55,932 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2025-03-04 02:55:55,932 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2025-03-04 02:55:55,932 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2025-03-04 02:55:55,932 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2025-03-04 02:55:55,932 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2025-03-04 02:55:55,934 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2025-03-04 02:55:55,934 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#6 [2025-03-04 02:55:55,934 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#7 [2025-03-04 02:55:55,934 INFO L130 BoogieDeclarations]: Found specification of procedure aws_raise_error [2025-03-04 02:55:55,934 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_raise_error [2025-03-04 02:55:55,934 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2025-03-04 02:55:55,934 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2025-03-04 02:55:55,934 INFO L130 BoogieDeclarations]: Found specification of procedure hash_table_state_is_valid [2025-03-04 02:55:55,934 INFO L138 BoogieDeclarations]: Found implementation of procedure hash_table_state_is_valid [2025-03-04 02:55:55,934 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2025-03-04 02:55:55,934 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-03-04 02:55:55,934 INFO L130 BoogieDeclarations]: Found specification of procedure hash_table_state_required_bytes [2025-03-04 02:55:55,934 INFO L138 BoogieDeclarations]: Found implementation of procedure hash_table_state_required_bytes [2025-03-04 02:55:55,934 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2025-03-04 02:55:55,934 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2025-03-04 02:55:55,934 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2025-03-04 02:55:55,935 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2025-03-04 02:55:55,935 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#4 [2025-03-04 02:55:55,935 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#5 [2025-03-04 02:55:55,935 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#6 [2025-03-04 02:55:55,935 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#7 [2025-03-04 02:55:55,935 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-03-04 02:55:55,935 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-03-04 02:55:55,935 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2025-03-04 02:55:55,935 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2025-03-04 02:55:55,935 INFO L130 BoogieDeclarations]: Found specification of procedure aws_mul_size_checked [2025-03-04 02:55:55,935 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_mul_size_checked [2025-03-04 02:55:55,935 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#0 [2025-03-04 02:55:55,935 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#1 [2025-03-04 02:55:55,935 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#2 [2025-03-04 02:55:55,935 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#3 [2025-03-04 02:55:55,935 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#4 [2025-03-04 02:55:55,935 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#5 [2025-03-04 02:55:55,935 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#6 [2025-03-04 02:55:55,935 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#7 [2025-03-04 02:55:55,935 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#0 [2025-03-04 02:55:55,935 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#1 [2025-03-04 02:55:55,935 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#2 [2025-03-04 02:55:55,935 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#3 [2025-03-04 02:55:55,935 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#4 [2025-03-04 02:55:55,935 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#5 [2025-03-04 02:55:55,935 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#6 [2025-03-04 02:55:55,935 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#7 [2025-03-04 02:55:55,935 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#0 [2025-03-04 02:55:55,935 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#1 [2025-03-04 02:55:55,935 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#2 [2025-03-04 02:55:55,935 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#3 [2025-03-04 02:55:55,936 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#4 [2025-03-04 02:55:55,936 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#5 [2025-03-04 02:55:55,936 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#6 [2025-03-04 02:55:55,936 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#7 [2025-03-04 02:55:55,936 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2025-03-04 02:55:55,936 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2025-03-04 02:55:55,936 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2025-03-04 02:55:55,936 INFO L130 BoogieDeclarations]: Found specification of procedure __CPROVER_overflow_plus [2025-03-04 02:55:55,936 INFO L138 BoogieDeclarations]: Found implementation of procedure __CPROVER_overflow_plus [2025-03-04 02:55:55,936 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2025-03-04 02:55:55,936 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2025-03-04 02:55:55,936 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2025-03-04 02:55:55,936 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2025-03-04 02:55:55,936 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#4 [2025-03-04 02:55:55,936 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#5 [2025-03-04 02:55:55,936 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#6 [2025-03-04 02:55:55,936 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#7 [2025-03-04 02:55:55,936 INFO L130 BoogieDeclarations]: Found specification of procedure aws_hash_table_is_valid [2025-03-04 02:55:55,936 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_hash_table_is_valid [2025-03-04 02:55:55,936 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#0 [2025-03-04 02:55:55,936 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#1 [2025-03-04 02:55:55,936 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#2 [2025-03-04 02:55:55,936 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#3 [2025-03-04 02:55:55,936 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#4 [2025-03-04 02:55:55,936 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#5 [2025-03-04 02:55:55,936 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#6 [2025-03-04 02:55:55,936 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#7 [2025-03-04 02:55:55,939 INFO L130 BoogieDeclarations]: Found specification of procedure __CPROVER_overflow_mult [2025-03-04 02:55:55,939 INFO L138 BoogieDeclarations]: Found implementation of procedure __CPROVER_overflow_mult [2025-03-04 02:55:55,939 INFO L130 BoogieDeclarations]: Found specification of procedure aws_add_size_checked [2025-03-04 02:55:55,939 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_add_size_checked [2025-03-04 02:55:55,939 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_uint64_t [2025-03-04 02:55:55,939 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_uint64_t [2025-03-04 02:55:55,939 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2025-03-04 02:55:55,939 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2025-03-04 02:55:55,939 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2025-03-04 02:55:55,939 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2025-03-04 02:55:55,939 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2025-03-04 02:55:55,939 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2025-03-04 02:55:55,939 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#6 [2025-03-04 02:55:55,939 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#7 [2025-03-04 02:55:55,939 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-03-04 02:55:55,939 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2025-03-04 02:55:55,939 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2025-03-04 02:55:55,939 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2025-03-04 02:55:55,939 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2025-03-04 02:55:55,939 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2025-03-04 02:55:55,939 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#6 [2025-03-04 02:55:55,940 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#7 [2025-03-04 02:55:55,940 INFO L130 BoogieDeclarations]: Found specification of procedure aws_is_power_of_two [2025-03-04 02:55:55,940 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_is_power_of_two [2025-03-04 02:55:56,221 INFO L256 CfgBuilder]: Building ICFG [2025-03-04 02:55:56,222 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2025-03-04 02:55:56,248 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L6947: havoc #t~malloc588.base, #t~malloc588.offset; [2025-03-04 02:55:56,273 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L2590: havoc #t~ret57#1; [2025-03-04 02:55:56,275 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L266: havoc #t~nondet9; [2025-03-04 02:55:56,420 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L10103: call ULTIMATE.dealloc(~#elemsize~0.base, ~#elemsize~0.offset);havoc ~#elemsize~0.base, ~#elemsize~0.offset; [2025-03-04 02:55:56,444 INFO L1325 $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; [2025-03-04 02:55:56,497 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L2630: havoc #t~bitwise60;havoc #t~short61; [2025-03-04 02:55:56,511 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L2617: havoc #t~ret59#1; [2025-03-04 02:56:01,606 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L263: havoc nondet_size_t_#t~nondet6#1; [2025-03-04 02:56:01,662 INFO L? ?]: Removed 149 outVars from TransFormulas that were not future-live. [2025-03-04 02:56:01,662 INFO L307 CfgBuilder]: Performing block encoding [2025-03-04 02:56:01,674 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-03-04 02:56:01,674 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2025-03-04 02:56:01,675 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 04.03 02:56:01 BoogieIcfgContainer [2025-03-04 02:56:01,675 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-03-04 02:56:01,676 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-03-04 02:56:01,677 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-03-04 02:56:01,680 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-03-04 02:56:01,680 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 04.03 02:55:53" (1/3) ... [2025-03-04 02:56:01,681 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@33d0d89a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.03 02:56:01, skipping insertion in model container [2025-03-04 02:56:01,681 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 02:55:55" (2/3) ... [2025-03-04 02:56:01,681 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@33d0d89a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.03 02:56:01, skipping insertion in model container [2025-03-04 02:56:01,681 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 04.03 02:56:01" (3/3) ... [2025-03-04 02:56:01,682 INFO L128 eAbstractionObserver]: Analyzing ICFG aws_hash_table_move_harness.i [2025-03-04 02:56:01,692 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-03-04 02:56:01,693 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG aws_hash_table_move_harness.i that has 22 procedures, 160 locations, 1 initial locations, 9 loop locations, and 1 error locations. [2025-03-04 02:56:01,732 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-03-04 02:56:01,741 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;@5883f2c2, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-03-04 02:56:01,741 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2025-03-04 02:56:01,745 INFO L276 IsEmpty]: Start isEmpty. Operand has 132 states, 85 states have (on average 1.188235294117647) internal successors, (101), 85 states have internal predecessors, (101), 32 states have call successors, (32), 14 states have call predecessors, (32), 14 states have return successors, (32), 32 states have call predecessors, (32), 32 states have call successors, (32) [2025-03-04 02:56:01,753 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2025-03-04 02:56:01,753 INFO L210 NwaCegarLoop]: Found error trace [2025-03-04 02:56:01,754 INFO L218 NwaCegarLoop]: trace histogram [10, 10, 10, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 02:56:01,754 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-04 02:56:01,757 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 02:56:01,758 INFO L85 PathProgramCache]: Analyzing trace with hash 1264834228, now seen corresponding path program 1 times [2025-03-04 02:56:01,763 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 02:56:01,764 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1918666077] [2025-03-04 02:56:01,764 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 02:56:01,764 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 02:56:05,946 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 141 statements into 1 equivalence classes. [2025-03-04 02:56:06,198 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 141 of 141 statements. [2025-03-04 02:56:06,199 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 02:56:06,199 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 02:56:06,596 INFO L134 CoverageAnalysis]: Checked inductivity of 216 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 198 trivial. 0 not checked. [2025-03-04 02:56:06,597 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 02:56:06,598 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1918666077] [2025-03-04 02:56:06,598 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1918666077] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-04 02:56:06,598 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2074924146] [2025-03-04 02:56:06,599 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 02:56:06,599 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 02:56:06,599 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 02:56:06,601 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) [2025-03-04 02:56:06,603 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2025-03-04 02:56:11,044 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 141 statements into 1 equivalence classes. [2025-03-04 02:56:11,532 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 141 of 141 statements. [2025-03-04 02:56:11,532 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 02:56:11,532 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 02:56:11,551 INFO L256 TraceCheckSpWp]: Trace formula consists of 4416 conjuncts, 1 conjuncts are in the unsatisfiable core [2025-03-04 02:56:11,560 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-04 02:56:11,575 INFO L134 CoverageAnalysis]: Checked inductivity of 216 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 198 trivial. 0 not checked. [2025-03-04 02:56:11,575 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-04 02:56:11,576 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2074924146] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 02:56:11,576 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-03-04 02:56:11,576 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2 [2025-03-04 02:56:11,578 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [851572809] [2025-03-04 02:56:11,579 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 02:56:11,581 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2025-03-04 02:56:11,582 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 02:56:11,594 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2025-03-04 02:56:11,594 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-03-04 02:56:11,596 INFO L87 Difference]: Start difference. First operand has 132 states, 85 states have (on average 1.188235294117647) internal successors, (101), 85 states have internal predecessors, (101), 32 states have call successors, (32), 14 states have call predecessors, (32), 14 states have return successors, (32), 32 states have call predecessors, (32), 32 states have call successors, (32) Second operand has 2 states, 2 states have (on average 24.5) internal successors, (49), 2 states have internal predecessors, (49), 2 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2025-03-04 02:56:11,632 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-04 02:56:11,633 INFO L93 Difference]: Finished difference Result 256 states and 343 transitions. [2025-03-04 02:56:11,634 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-03-04 02:56:11,635 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 24.5) internal successors, (49), 2 states have internal predecessors, (49), 2 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) Word has length 141 [2025-03-04 02:56:11,635 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-04 02:56:11,640 INFO L225 Difference]: With dead ends: 256 [2025-03-04 02:56:11,640 INFO L226 Difference]: Without dead ends: 126 [2025-03-04 02:56:11,643 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 142 GetRequests, 142 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-03-04 02:56:11,645 INFO L435 NwaCegarLoop]: 159 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, 159 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 [2025-03-04 02:56:11,645 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 159 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-04 02:56:11,655 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 126 states. [2025-03-04 02:56:11,674 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 126 to 126. [2025-03-04 02:56:11,676 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 126 states, 79 states have (on average 1.1518987341772151) internal successors, (91), 80 states have internal predecessors, (91), 32 states have call successors, (32), 14 states have call predecessors, (32), 14 states have return successors, (31), 31 states have call predecessors, (31), 31 states have call successors, (31) [2025-03-04 02:56:11,679 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 126 states to 126 states and 154 transitions. [2025-03-04 02:56:11,682 INFO L78 Accepts]: Start accepts. Automaton has 126 states and 154 transitions. Word has length 141 [2025-03-04 02:56:11,682 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-04 02:56:11,682 INFO L471 AbstractCegarLoop]: Abstraction has 126 states and 154 transitions. [2025-03-04 02:56:11,683 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 24.5) internal successors, (49), 2 states have internal predecessors, (49), 2 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2025-03-04 02:56:11,683 INFO L276 IsEmpty]: Start isEmpty. Operand 126 states and 154 transitions. [2025-03-04 02:56:11,685 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2025-03-04 02:56:11,686 INFO L210 NwaCegarLoop]: Found error trace [2025-03-04 02:56:11,686 INFO L218 NwaCegarLoop]: trace histogram [10, 10, 10, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 02:56:11,701 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2025-03-04 02:56:11,886 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2025-03-04 02:56:11,887 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-04 02:56:11,887 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 02:56:11,888 INFO L85 PathProgramCache]: Analyzing trace with hash -637427867, now seen corresponding path program 1 times [2025-03-04 02:56:11,888 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 02:56:11,888 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1978099467] [2025-03-04 02:56:11,888 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 02:56:11,888 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 02:56:15,835 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 147 statements into 1 equivalence classes. [2025-03-04 02:56:15,964 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 147 of 147 statements. [2025-03-04 02:56:15,965 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 02:56:15,966 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 02:56:17,050 INFO L134 CoverageAnalysis]: Checked inductivity of 216 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 209 trivial. 0 not checked. [2025-03-04 02:56:17,051 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 02:56:17,051 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1978099467] [2025-03-04 02:56:17,051 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1978099467] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-04 02:56:17,051 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [945330355] [2025-03-04 02:56:17,051 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 02:56:17,051 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 02:56:17,055 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 02:56:17,057 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) [2025-03-04 02:56:17,058 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2025-03-04 02:56:21,307 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 147 statements into 1 equivalence classes. [2025-03-04 02:56:21,765 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 147 of 147 statements. [2025-03-04 02:56:21,765 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 02:56:21,765 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 02:56:21,788 INFO L256 TraceCheckSpWp]: Trace formula consists of 4441 conjuncts, 7 conjuncts are in the unsatisfiable core [2025-03-04 02:56:21,800 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-04 02:56:21,928 INFO L134 CoverageAnalysis]: Checked inductivity of 216 backedges. 121 proven. 0 refuted. 0 times theorem prover too weak. 95 trivial. 0 not checked. [2025-03-04 02:56:21,930 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-04 02:56:21,930 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [945330355] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 02:56:21,930 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-03-04 02:56:21,931 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 5 [2025-03-04 02:56:21,931 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [264521247] [2025-03-04 02:56:21,931 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 02:56:21,932 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-03-04 02:56:21,932 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 02:56:21,933 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-03-04 02:56:21,933 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-03-04 02:56:21,934 INFO L87 Difference]: Start difference. First operand 126 states and 154 transitions. Second operand has 5 states, 5 states have (on average 13.2) internal successors, (66), 5 states have internal predecessors, (66), 2 states have call successors, (22), 2 states have call predecessors, (22), 3 states have return successors, (22), 3 states have call predecessors, (22), 2 states have call successors, (22) [2025-03-04 02:56:22,191 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-04 02:56:22,193 INFO L93 Difference]: Finished difference Result 245 states and 300 transitions. [2025-03-04 02:56:22,194 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-03-04 02:56:22,194 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.2) internal successors, (66), 5 states have internal predecessors, (66), 2 states have call successors, (22), 2 states have call predecessors, (22), 3 states have return successors, (22), 3 states have call predecessors, (22), 2 states have call successors, (22) Word has length 147 [2025-03-04 02:56:22,194 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-04 02:56:22,198 INFO L225 Difference]: With dead ends: 245 [2025-03-04 02:56:22,198 INFO L226 Difference]: Without dead ends: 131 [2025-03-04 02:56:22,199 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 151 GetRequests, 148 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-03-04 02:56:22,200 INFO L435 NwaCegarLoop]: 150 mSDtfsCounter, 0 mSDsluCounter, 446 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 596 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 [2025-03-04 02:56:22,200 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 596 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2025-03-04 02:56:22,204 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 131 states. [2025-03-04 02:56:22,212 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 131 to 131. [2025-03-04 02:56:22,213 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 131 states, 83 states have (on average 1.144578313253012) internal successors, (95), 84 states have internal predecessors, (95), 32 states have call successors, (32), 14 states have call predecessors, (32), 15 states have return successors, (32), 32 states have call predecessors, (32), 31 states have call successors, (32) [2025-03-04 02:56:22,216 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 131 states to 131 states and 159 transitions. [2025-03-04 02:56:22,216 INFO L78 Accepts]: Start accepts. Automaton has 131 states and 159 transitions. Word has length 147 [2025-03-04 02:56:22,217 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-04 02:56:22,217 INFO L471 AbstractCegarLoop]: Abstraction has 131 states and 159 transitions. [2025-03-04 02:56:22,217 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.2) internal successors, (66), 5 states have internal predecessors, (66), 2 states have call successors, (22), 2 states have call predecessors, (22), 3 states have return successors, (22), 3 states have call predecessors, (22), 2 states have call successors, (22) [2025-03-04 02:56:22,217 INFO L276 IsEmpty]: Start isEmpty. Operand 131 states and 159 transitions. [2025-03-04 02:56:22,219 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2025-03-04 02:56:22,219 INFO L210 NwaCegarLoop]: Found error trace [2025-03-04 02:56:22,219 INFO L218 NwaCegarLoop]: trace histogram [10, 10, 10, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 02:56:22,237 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2025-03-04 02:56:22,419 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable1 [2025-03-04 02:56:22,420 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-04 02:56:22,420 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 02:56:22,420 INFO L85 PathProgramCache]: Analyzing trace with hash -242716347, now seen corresponding path program 1 times [2025-03-04 02:56:22,421 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 02:56:22,421 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [648249485] [2025-03-04 02:56:22,421 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 02:56:22,421 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 02:56:26,019 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 159 statements into 1 equivalence classes. [2025-03-04 02:56:26,119 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 159 of 159 statements. [2025-03-04 02:56:26,122 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 02:56:26,122 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 02:56:29,630 INFO L134 CoverageAnalysis]: Checked inductivity of 222 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 210 trivial. 0 not checked. [2025-03-04 02:56:29,631 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 02:56:29,631 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [648249485] [2025-03-04 02:56:29,631 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [648249485] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-04 02:56:29,631 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1330881469] [2025-03-04 02:56:29,631 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 02:56:29,631 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 02:56:29,631 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 02:56:29,633 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) [2025-03-04 02:56:29,634 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2025-03-04 02:56:34,085 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 159 statements into 1 equivalence classes. [2025-03-04 02:56:34,552 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 159 of 159 statements. [2025-03-04 02:56:34,552 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 02:56:34,552 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 02:56:34,580 INFO L256 TraceCheckSpWp]: Trace formula consists of 4449 conjuncts, 36 conjuncts are in the unsatisfiable core [2025-03-04 02:56:34,586 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-04 02:56:35,243 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 [2025-03-04 02:56:41,730 INFO L134 CoverageAnalysis]: Checked inductivity of 222 backedges. 157 proven. 0 refuted. 0 times theorem prover too weak. 65 trivial. 0 not checked. [2025-03-04 02:56:41,730 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-04 02:56:41,730 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1330881469] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 02:56:41,730 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-03-04 02:56:41,730 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [10] total 16 [2025-03-04 02:56:41,730 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [789705338] [2025-03-04 02:56:41,730 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 02:56:41,731 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2025-03-04 02:56:41,731 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 02:56:41,732 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2025-03-04 02:56:41,732 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=194, Unknown=0, NotChecked=0, Total=240 [2025-03-04 02:56:41,732 INFO L87 Difference]: Start difference. First operand 131 states and 159 transitions. Second operand has 12 states, 11 states have (on average 7.909090909090909) internal successors, (87), 11 states have internal predecessors, (87), 6 states have call successors, (26), 3 states have call predecessors, (26), 5 states have return successors, (25), 7 states have call predecessors, (25), 6 states have call successors, (25) [2025-03-04 02:56:50,212 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2025-03-04 02:56:54,243 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2025-03-04 02:56:55,244 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-04 02:56:55,244 INFO L93 Difference]: Finished difference Result 333 states and 400 transitions. [2025-03-04 02:56:55,244 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2025-03-04 02:56:55,245 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 7.909090909090909) internal successors, (87), 11 states have internal predecessors, (87), 6 states have call successors, (26), 3 states have call predecessors, (26), 5 states have return successors, (25), 7 states have call predecessors, (25), 6 states have call successors, (25) Word has length 159 [2025-03-04 02:56:55,245 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-04 02:56:55,249 INFO L225 Difference]: With dead ends: 333 [2025-03-04 02:56:55,249 INFO L226 Difference]: Without dead ends: 226 [2025-03-04 02:56:55,250 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 171 GetRequests, 140 SyntacticMatches, 14 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 70 ImplicationChecksByTransitivity, 5.8s TimeCoverageRelationStatistics Valid=73, Invalid=269, Unknown=0, NotChecked=0, Total=342 [2025-03-04 02:56:55,251 INFO L435 NwaCegarLoop]: 198 mSDtfsCounter, 77 mSDsluCounter, 1470 mSDsCounter, 0 mSdLazyCounter, 412 mSolverCounterSat, 5 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 85 SdHoareTripleChecker+Valid, 1668 SdHoareTripleChecker+Invalid, 419 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 412 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12.9s IncrementalHoareTripleChecker+Time [2025-03-04 02:56:55,251 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [85 Valid, 1668 Invalid, 419 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 412 Invalid, 2 Unknown, 0 Unchecked, 12.9s Time] [2025-03-04 02:56:55,252 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 226 states. [2025-03-04 02:56:55,273 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 226 to 221. [2025-03-04 02:56:55,274 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 221 states, 146 states have (on average 1.1643835616438356) internal successors, (170), 149 states have internal predecessors, (170), 45 states have call successors, (45), 25 states have call predecessors, (45), 29 states have return successors, (48), 46 states have call predecessors, (48), 43 states have call successors, (48) [2025-03-04 02:56:55,276 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 221 states to 221 states and 263 transitions. [2025-03-04 02:56:55,277 INFO L78 Accepts]: Start accepts. Automaton has 221 states and 263 transitions. Word has length 159 [2025-03-04 02:56:55,277 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-04 02:56:55,277 INFO L471 AbstractCegarLoop]: Abstraction has 221 states and 263 transitions. [2025-03-04 02:56:55,277 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 7.909090909090909) internal successors, (87), 11 states have internal predecessors, (87), 6 states have call successors, (26), 3 states have call predecessors, (26), 5 states have return successors, (25), 7 states have call predecessors, (25), 6 states have call successors, (25) [2025-03-04 02:56:55,277 INFO L276 IsEmpty]: Start isEmpty. Operand 221 states and 263 transitions. [2025-03-04 02:56:55,281 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2025-03-04 02:56:55,281 INFO L210 NwaCegarLoop]: Found error trace [2025-03-04 02:56:55,281 INFO L218 NwaCegarLoop]: trace histogram [10, 10, 10, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2025-03-04 02:56:55,298 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2025-03-04 02:56:55,481 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 02:56:55,482 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-04 02:56:55,482 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 02:56:55,482 INFO L85 PathProgramCache]: Analyzing trace with hash 93833445, now seen corresponding path program 1 times [2025-03-04 02:56:55,483 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 02:56:55,483 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1985798018] [2025-03-04 02:56:55,483 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 02:56:55,483 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 02:56:59,125 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 159 statements into 1 equivalence classes. [2025-03-04 02:56:59,239 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 159 of 159 statements. [2025-03-04 02:56:59,239 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 02:56:59,239 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 02:57:00,473 INFO L134 CoverageAnalysis]: Checked inductivity of 222 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 210 trivial. 0 not checked. [2025-03-04 02:57:00,473 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 02:57:00,473 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1985798018] [2025-03-04 02:57:00,473 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1985798018] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-04 02:57:00,473 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1764472147] [2025-03-04 02:57:00,473 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 02:57:00,474 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 02:57:00,474 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 02:57:00,479 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) [2025-03-04 02:57:00,480 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2025-03-04 02:57:04,944 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 159 statements into 1 equivalence classes. [2025-03-04 02:57:05,432 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 159 of 159 statements. [2025-03-04 02:57:05,432 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 02:57:05,432 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 02:57:05,454 INFO L256 TraceCheckSpWp]: Trace formula consists of 4439 conjuncts, 6 conjuncts are in the unsatisfiable core [2025-03-04 02:57:05,460 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-04 02:57:06,496 INFO L134 CoverageAnalysis]: Checked inductivity of 222 backedges. 131 proven. 0 refuted. 0 times theorem prover too weak. 91 trivial. 0 not checked. [2025-03-04 02:57:06,496 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-04 02:57:06,496 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1764472147] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 02:57:06,496 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-03-04 02:57:06,496 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [5] total 9 [2025-03-04 02:57:06,496 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [65220263] [2025-03-04 02:57:06,496 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 02:57:06,497 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-04 02:57:06,497 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 02:57:06,497 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-04 02:57:06,497 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2025-03-04 02:57:06,498 INFO L87 Difference]: Start difference. First operand 221 states and 263 transitions. Second operand has 6 states, 6 states have (on average 13.166666666666666) internal successors, (79), 6 states have internal predecessors, (79), 3 states have call successors, (26), 2 states have call predecessors, (26), 3 states have return successors, (25), 3 states have call predecessors, (25), 3 states have call successors, (25) [2025-03-04 02:57:08,400 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-04 02:57:08,400 INFO L93 Difference]: Finished difference Result 386 states and 467 transitions. [2025-03-04 02:57:08,401 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-04 02:57:08,401 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 13.166666666666666) internal successors, (79), 6 states have internal predecessors, (79), 3 states have call successors, (26), 2 states have call predecessors, (26), 3 states have return successors, (25), 3 states have call predecessors, (25), 3 states have call successors, (25) Word has length 159 [2025-03-04 02:57:08,401 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-04 02:57:08,403 INFO L225 Difference]: With dead ends: 386 [2025-03-04 02:57:08,403 INFO L226 Difference]: Without dead ends: 233 [2025-03-04 02:57:08,403 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 166 GetRequests, 156 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=36, Invalid=96, Unknown=0, NotChecked=0, Total=132 [2025-03-04 02:57:08,404 INFO L435 NwaCegarLoop]: 130 mSDtfsCounter, 147 mSDsluCounter, 348 mSDsCounter, 0 mSdLazyCounter, 115 mSolverCounterSat, 41 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 147 SdHoareTripleChecker+Valid, 478 SdHoareTripleChecker+Invalid, 156 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 41 IncrementalHoareTripleChecker+Valid, 115 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2025-03-04 02:57:08,404 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [147 Valid, 478 Invalid, 156 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [41 Valid, 115 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2025-03-04 02:57:08,404 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 233 states. [2025-03-04 02:57:08,419 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 233 to 226. [2025-03-04 02:57:08,420 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 226 states, 149 states have (on average 1.1610738255033557) internal successors, (173), 153 states have internal predecessors, (173), 46 states have call successors, (46), 25 states have call predecessors, (46), 30 states have return successors, (52), 47 states have call predecessors, (52), 44 states have call successors, (52) [2025-03-04 02:57:08,421 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 226 states to 226 states and 271 transitions. [2025-03-04 02:57:08,422 INFO L78 Accepts]: Start accepts. Automaton has 226 states and 271 transitions. Word has length 159 [2025-03-04 02:57:08,422 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-04 02:57:08,422 INFO L471 AbstractCegarLoop]: Abstraction has 226 states and 271 transitions. [2025-03-04 02:57:08,422 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 13.166666666666666) internal successors, (79), 6 states have internal predecessors, (79), 3 states have call successors, (26), 2 states have call predecessors, (26), 3 states have return successors, (25), 3 states have call predecessors, (25), 3 states have call successors, (25) [2025-03-04 02:57:08,422 INFO L276 IsEmpty]: Start isEmpty. Operand 226 states and 271 transitions. [2025-03-04 02:57:08,423 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2025-03-04 02:57:08,423 INFO L210 NwaCegarLoop]: Found error trace [2025-03-04 02:57:08,423 INFO L218 NwaCegarLoop]: trace histogram [10, 10, 10, 3, 3, 3, 3, 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, 1, 1] [2025-03-04 02:57:08,442 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2025-03-04 02:57:08,624 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 02:57:08,624 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-04 02:57:08,626 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 02:57:08,626 INFO L85 PathProgramCache]: Analyzing trace with hash 1776601423, now seen corresponding path program 1 times [2025-03-04 02:57:08,626 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 02:57:08,626 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [489637016] [2025-03-04 02:57:08,626 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 02:57:08,626 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 02:57:12,097 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 165 statements into 1 equivalence classes. [2025-03-04 02:57:12,194 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 165 of 165 statements. [2025-03-04 02:57:12,195 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 02:57:12,195 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 02:57:14,144 INFO L134 CoverageAnalysis]: Checked inductivity of 222 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 212 trivial. 0 not checked. [2025-03-04 02:57:14,144 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 02:57:14,144 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [489637016] [2025-03-04 02:57:14,145 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [489637016] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-04 02:57:14,145 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1491038422] [2025-03-04 02:57:14,145 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 02:57:14,145 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 02:57:14,145 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 02:57:14,147 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-04 02:57:14,148 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2025-03-04 02:57:18,440 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 165 statements into 1 equivalence classes. [2025-03-04 02:57:18,878 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 165 of 165 statements. [2025-03-04 02:57:18,878 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 02:57:18,878 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 02:57:18,899 INFO L256 TraceCheckSpWp]: Trace formula consists of 4468 conjuncts, 8 conjuncts are in the unsatisfiable core [2025-03-04 02:57:18,905 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-04 02:57:20,755 INFO L134 CoverageAnalysis]: Checked inductivity of 222 backedges. 56 proven. 0 refuted. 0 times theorem prover too weak. 166 trivial. 0 not checked. [2025-03-04 02:57:20,755 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-04 02:57:20,755 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1491038422] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 02:57:20,755 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-03-04 02:57:20,755 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [7] total 12 [2025-03-04 02:57:20,755 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1531549356] [2025-03-04 02:57:20,755 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 02:57:20,757 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2025-03-04 02:57:20,757 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 02:57:20,758 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2025-03-04 02:57:20,758 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=110, Unknown=0, NotChecked=0, Total=132 [2025-03-04 02:57:20,758 INFO L87 Difference]: Start difference. First operand 226 states and 271 transitions. Second operand has 7 states, 6 states have (on average 12.333333333333334) internal successors, (74), 7 states have internal predecessors, (74), 4 states have call successors, (24), 2 states have call predecessors, (24), 3 states have return successors, (23), 4 states have call predecessors, (23), 4 states have call successors, (23) [2025-03-04 02:57:22,689 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-04 02:57:22,689 INFO L93 Difference]: Finished difference Result 335 states and 404 transitions. [2025-03-04 02:57:22,690 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2025-03-04 02:57:22,690 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 12.333333333333334) internal successors, (74), 7 states have internal predecessors, (74), 4 states have call successors, (24), 2 states have call predecessors, (24), 3 states have return successors, (23), 4 states have call predecessors, (23), 4 states have call successors, (23) Word has length 165 [2025-03-04 02:57:22,690 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-04 02:57:22,692 INFO L225 Difference]: With dead ends: 335 [2025-03-04 02:57:22,692 INFO L226 Difference]: Without dead ends: 233 [2025-03-04 02:57:22,693 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 176 GetRequests, 162 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=42, Invalid=198, Unknown=0, NotChecked=0, Total=240 [2025-03-04 02:57:22,693 INFO L435 NwaCegarLoop]: 129 mSDtfsCounter, 148 mSDsluCounter, 353 mSDsCounter, 0 mSdLazyCounter, 106 mSolverCounterSat, 41 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 148 SdHoareTripleChecker+Valid, 482 SdHoareTripleChecker+Invalid, 147 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 41 IncrementalHoareTripleChecker+Valid, 106 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2025-03-04 02:57:22,693 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [148 Valid, 482 Invalid, 147 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [41 Valid, 106 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2025-03-04 02:57:22,694 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 233 states. [2025-03-04 02:57:22,705 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 233 to 223. [2025-03-04 02:57:22,706 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 223 states, 147 states have (on average 1.163265306122449) internal successors, (171), 150 states have internal predecessors, (171), 46 states have call successors, (46), 25 states have call predecessors, (46), 29 states have return successors, (49), 47 states have call predecessors, (49), 44 states have call successors, (49) [2025-03-04 02:57:22,707 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 223 states to 223 states and 266 transitions. [2025-03-04 02:57:22,708 INFO L78 Accepts]: Start accepts. Automaton has 223 states and 266 transitions. Word has length 165 [2025-03-04 02:57:22,708 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-04 02:57:22,708 INFO L471 AbstractCegarLoop]: Abstraction has 223 states and 266 transitions. [2025-03-04 02:57:22,708 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 12.333333333333334) internal successors, (74), 7 states have internal predecessors, (74), 4 states have call successors, (24), 2 states have call predecessors, (24), 3 states have return successors, (23), 4 states have call predecessors, (23), 4 states have call successors, (23) [2025-03-04 02:57:22,708 INFO L276 IsEmpty]: Start isEmpty. Operand 223 states and 266 transitions. [2025-03-04 02:57:22,710 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2025-03-04 02:57:22,710 INFO L210 NwaCegarLoop]: Found error trace [2025-03-04 02:57:22,710 INFO L218 NwaCegarLoop]: trace histogram [10, 10, 10, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2025-03-04 02:57:22,731 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2025-03-04 02:57:22,910 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 02:57:22,911 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-04 02:57:22,911 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 02:57:22,911 INFO L85 PathProgramCache]: Analyzing trace with hash -990914587, now seen corresponding path program 1 times [2025-03-04 02:57:22,911 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 02:57:22,911 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [201083151] [2025-03-04 02:57:22,911 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 02:57:22,911 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms