./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/aws-c-common/aws_hash_table_get_entry_count_harness.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 8fc3dc66 Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/aws-c-common/aws_hash_table_get_entry_count_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 7d15a327968a132f18d81dba73a48626f64398081f4d06a91fc3a4f7ce91dc5c --- Real Ultimate output --- This is Ultimate 0.3.0-?-8fc3dc6-m [2025-03-17 07:13:43,023 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-03-17 07:13:43,090 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2025-03-17 07:13:43,101 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-03-17 07:13:43,101 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-03-17 07:13:43,125 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-03-17 07:13:43,127 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-03-17 07:13:43,128 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-03-17 07:13:43,128 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-03-17 07:13:43,128 INFO L153 SettingsManager]: * Use memory slicer=true [2025-03-17 07:13:43,129 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-03-17 07:13:43,129 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-03-17 07:13:43,129 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-03-17 07:13:43,129 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-03-17 07:13:43,130 INFO L153 SettingsManager]: * Use SBE=true [2025-03-17 07:13:43,130 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-03-17 07:13:43,130 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-03-17 07:13:43,130 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-03-17 07:13:43,130 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-03-17 07:13:43,130 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-03-17 07:13:43,131 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-03-17 07:13:43,131 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-03-17 07:13:43,131 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-03-17 07:13:43,131 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-03-17 07:13:43,131 INFO L153 SettingsManager]: * Use constant arrays=true [2025-03-17 07:13:43,131 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-03-17 07:13:43,131 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-03-17 07:13:43,131 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-03-17 07:13:43,131 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-03-17 07:13:43,131 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-17 07:13:43,132 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-03-17 07:13:43,132 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-03-17 07:13:43,132 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-03-17 07:13:43,132 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-03-17 07:13:43,132 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-03-17 07:13:43,132 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-03-17 07:13:43,132 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-03-17 07:13:43,132 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-03-17 07:13:43,132 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-03-17 07:13:43,132 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-03-17 07:13:43,132 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 -> 7d15a327968a132f18d81dba73a48626f64398081f4d06a91fc3a4f7ce91dc5c [2025-03-17 07:13:43,381 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-03-17 07:13:43,388 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-03-17 07:13:43,390 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-03-17 07:13:43,391 INFO L270 PluginConnector]: Initializing CDTParser... [2025-03-17 07:13:43,392 INFO L274 PluginConnector]: CDTParser initialized [2025-03-17 07:13:43,392 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/aws-c-common/aws_hash_table_get_entry_count_harness.i [2025-03-17 07:13:44,639 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1686b6170/cf88e3a67dec40228fa986860e986647/FLAGaf1490ec6 [2025-03-17 07:13:45,128 INFO L384 CDTParser]: Found 1 translation units. [2025-03-17 07:13:45,129 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_hash_table_get_entry_count_harness.i [2025-03-17 07:13:45,175 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1686b6170/cf88e3a67dec40228fa986860e986647/FLAGaf1490ec6 [2025-03-17 07:13:45,192 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1686b6170/cf88e3a67dec40228fa986860e986647 [2025-03-17 07:13:45,194 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-03-17 07:13:45,196 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-03-17 07:13:45,197 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-03-17 07:13:45,198 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-03-17 07:13:45,201 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-03-17 07:13:45,202 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.03 07:13:45" (1/1) ... [2025-03-17 07:13:45,203 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6fe907ec and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 07:13:45, skipping insertion in model container [2025-03-17 07:13:45,203 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.03 07:13:45" (1/1) ... [2025-03-17 07:13:45,270 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-03-17 07:13:45,478 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_get_entry_count_harness.i[4504,4517] [2025-03-17 07:13:45,486 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_get_entry_count_harness.i[4564,4577] [2025-03-17 07:13:46,216 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 07:13:46,217 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 07:13:46,217 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 07:13:46,223 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 07:13:46,224 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 07:13:46,236 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 07:13:46,237 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 07:13:46,239 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 07:13:46,240 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 07:13:46,241 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 07:13:46,242 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 07:13:46,242 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 07:13:46,243 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 07:13:47,422 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 07:13:47,423 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 07:13:47,459 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 07:13:47,459 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 07:13:47,467 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 07:13:47,470 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 07:13:47,490 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 07:13:47,492 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 07:13:47,492 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 07:13:47,493 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 07:13:47,493 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 07:13:47,493 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 07:13:47,496 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 07:13:47,578 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_get_entry_count_harness.i[227690,227703] [2025-03-17 07:13:47,580 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-17 07:13:47,622 INFO L200 MainTranslator]: Completed pre-run [2025-03-17 07:13:47,633 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_get_entry_count_harness.i[4504,4517] [2025-03-17 07:13:47,634 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_get_entry_count_harness.i[4564,4577] [2025-03-17 07:13:47,664 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 07:13:47,665 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 07:13:47,665 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 07:13:47,665 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 07:13:47,666 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 07:13:47,671 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 07:13:47,671 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 07:13:47,672 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 07:13:47,672 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 07:13:47,673 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 07:13:47,673 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 07:13:47,673 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 07:13:47,674 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 07:13:47,728 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" : : "r"(pBuf) : "memory"); [7558-7569] [2025-03-17 07:13:47,782 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 07:13:47,783 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 07:13:47,788 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 07:13:47,789 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 07:13:47,790 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 07:13:47,791 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 07:13:47,796 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 07:13:47,797 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 07:13:47,797 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 07:13:47,798 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 07:13:47,798 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 07:13:47,798 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 07:13:47,798 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 07:13:47,812 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_get_entry_count_harness.i[227690,227703] [2025-03-17 07:13:47,813 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-17 07:13:48,039 INFO L204 MainTranslator]: Completed translation [2025-03-17 07:13:48,039 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 07:13:48 WrapperNode [2025-03-17 07:13:48,040 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-03-17 07:13:48,041 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-03-17 07:13:48,041 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-03-17 07:13:48,041 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-03-17 07:13:48,045 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 07:13:48" (1/1) ... [2025-03-17 07:13:48,118 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 07:13:48" (1/1) ... [2025-03-17 07:13:48,165 INFO L138 Inliner]: procedures = 763, calls = 2428, calls flagged for inlining = 69, calls inlined = 11, statements flattened = 607 [2025-03-17 07:13:48,165 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-03-17 07:13:48,166 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-03-17 07:13:48,166 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-03-17 07:13:48,166 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-03-17 07:13:48,174 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 07:13:48" (1/1) ... [2025-03-17 07:13:48,174 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 07:13:48" (1/1) ... [2025-03-17 07:13:48,181 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 07:13:48" (1/1) ... [2025-03-17 07:13:48,239 INFO L175 MemorySlicer]: Split 282 memory accesses to 8 slices as follows [238, 2, 7, 3, 2, 6, 19, 5]. 84 percent of accesses are in the largest equivalence class. The 13 initializations are split as follows [6, 2, 0, 0, 0, 0, 0, 5]. The 238 writes are split as follows [232, 0, 1, 1, 1, 2, 1, 0]. [2025-03-17 07:13:48,239 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 07:13:48" (1/1) ... [2025-03-17 07:13:48,239 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 07:13:48" (1/1) ... [2025-03-17 07:13:48,277 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 07:13:48" (1/1) ... [2025-03-17 07:13:48,279 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 07:13:48" (1/1) ... [2025-03-17 07:13:48,292 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 07:13:48" (1/1) ... [2025-03-17 07:13:48,296 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 07:13:48" (1/1) ... [2025-03-17 07:13:48,310 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-03-17 07:13:48,311 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-03-17 07:13:48,311 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-03-17 07:13:48,311 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-03-17 07:13:48,312 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 07:13:48" (1/1) ... [2025-03-17 07:13:48,317 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-17 07:13:48,328 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 07:13:48,343 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2025-03-17 07:13:48,348 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2025-03-17 07:13:48,370 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#0 [2025-03-17 07:13:48,371 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#1 [2025-03-17 07:13:48,371 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#2 [2025-03-17 07:13:48,371 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#3 [2025-03-17 07:13:48,371 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#4 [2025-03-17 07:13:48,371 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#5 [2025-03-17 07:13:48,371 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#6 [2025-03-17 07:13:48,372 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#7 [2025-03-17 07:13:48,372 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2025-03-17 07:13:48,372 INFO L130 BoogieDeclarations]: Found specification of procedure aws_hash_table_get_entry_count [2025-03-17 07:13:48,372 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_hash_table_get_entry_count [2025-03-17 07:13:48,372 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#0 [2025-03-17 07:13:48,372 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#1 [2025-03-17 07:13:48,373 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#2 [2025-03-17 07:13:48,373 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#3 [2025-03-17 07:13:48,373 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#4 [2025-03-17 07:13:48,373 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#5 [2025-03-17 07:13:48,373 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#6 [2025-03-17 07:13:48,373 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#7 [2025-03-17 07:13:48,373 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2025-03-17 07:13:48,373 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2025-03-17 07:13:48,373 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2025-03-17 07:13:48,373 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2025-03-17 07:13:48,373 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2025-03-17 07:13:48,373 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2025-03-17 07:13:48,373 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#6 [2025-03-17 07:13:48,373 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#7 [2025-03-17 07:13:48,373 INFO L130 BoogieDeclarations]: Found specification of procedure aws_raise_error [2025-03-17 07:13:48,373 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_raise_error [2025-03-17 07:13:48,373 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2025-03-17 07:13:48,373 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2025-03-17 07:13:48,373 INFO L130 BoogieDeclarations]: Found specification of procedure hash_table_state_is_valid [2025-03-17 07:13:48,373 INFO L138 BoogieDeclarations]: Found implementation of procedure hash_table_state_is_valid [2025-03-17 07:13:48,373 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2025-03-17 07:13:48,373 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-03-17 07:13:48,373 INFO L130 BoogieDeclarations]: Found specification of procedure hash_table_state_required_bytes [2025-03-17 07:13:48,373 INFO L138 BoogieDeclarations]: Found implementation of procedure hash_table_state_required_bytes [2025-03-17 07:13:48,373 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2025-03-17 07:13:48,373 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2025-03-17 07:13:48,373 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2025-03-17 07:13:48,373 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2025-03-17 07:13:48,373 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#4 [2025-03-17 07:13:48,373 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#5 [2025-03-17 07:13:48,373 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#6 [2025-03-17 07:13:48,373 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#7 [2025-03-17 07:13:48,373 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-03-17 07:13:48,374 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-03-17 07:13:48,374 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2025-03-17 07:13:48,374 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2025-03-17 07:13:48,374 INFO L130 BoogieDeclarations]: Found specification of procedure aws_mul_size_checked [2025-03-17 07:13:48,374 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_mul_size_checked [2025-03-17 07:13:48,374 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#0 [2025-03-17 07:13:48,374 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#1 [2025-03-17 07:13:48,374 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#2 [2025-03-17 07:13:48,374 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#3 [2025-03-17 07:13:48,374 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#4 [2025-03-17 07:13:48,374 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#5 [2025-03-17 07:13:48,374 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#6 [2025-03-17 07:13:48,374 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#7 [2025-03-17 07:13:48,374 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2025-03-17 07:13:48,374 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2025-03-17 07:13:48,374 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2025-03-17 07:13:48,374 INFO L130 BoogieDeclarations]: Found specification of procedure __CPROVER_overflow_plus [2025-03-17 07:13:48,374 INFO L138 BoogieDeclarations]: Found implementation of procedure __CPROVER_overflow_plus [2025-03-17 07:13:48,374 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2025-03-17 07:13:48,374 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2025-03-17 07:13:48,374 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2025-03-17 07:13:48,374 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2025-03-17 07:13:48,374 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#4 [2025-03-17 07:13:48,374 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#5 [2025-03-17 07:13:48,374 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#6 [2025-03-17 07:13:48,374 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#7 [2025-03-17 07:13:48,374 INFO L130 BoogieDeclarations]: Found specification of procedure aws_hash_table_is_valid [2025-03-17 07:13:48,374 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_hash_table_is_valid [2025-03-17 07:13:48,374 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#0 [2025-03-17 07:13:48,374 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#1 [2025-03-17 07:13:48,374 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#2 [2025-03-17 07:13:48,374 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#3 [2025-03-17 07:13:48,374 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#4 [2025-03-17 07:13:48,374 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#5 [2025-03-17 07:13:48,374 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#6 [2025-03-17 07:13:48,374 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#7 [2025-03-17 07:13:48,374 INFO L130 BoogieDeclarations]: Found specification of procedure __CPROVER_overflow_mult [2025-03-17 07:13:48,375 INFO L138 BoogieDeclarations]: Found implementation of procedure __CPROVER_overflow_mult [2025-03-17 07:13:48,375 INFO L130 BoogieDeclarations]: Found specification of procedure aws_add_size_checked [2025-03-17 07:13:48,375 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_add_size_checked [2025-03-17 07:13:48,375 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_uint64_t [2025-03-17 07:13:48,375 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_uint64_t [2025-03-17 07:13:48,375 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2025-03-17 07:13:48,375 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2025-03-17 07:13:48,375 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2025-03-17 07:13:48,375 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2025-03-17 07:13:48,375 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2025-03-17 07:13:48,375 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2025-03-17 07:13:48,375 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#6 [2025-03-17 07:13:48,375 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#7 [2025-03-17 07:13:48,375 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-03-17 07:13:48,375 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2025-03-17 07:13:48,375 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2025-03-17 07:13:48,375 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2025-03-17 07:13:48,375 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2025-03-17 07:13:48,375 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2025-03-17 07:13:48,375 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#6 [2025-03-17 07:13:48,375 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#7 [2025-03-17 07:13:48,375 INFO L130 BoogieDeclarations]: Found specification of procedure aws_is_power_of_two [2025-03-17 07:13:48,375 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_is_power_of_two [2025-03-17 07:13:48,696 INFO L256 CfgBuilder]: Building ICFG [2025-03-17 07:13:48,698 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2025-03-17 07:13:48,741 INFO L1322 $ProcedureCfgBuilder]: dead code at ProgramPoint L6947: havoc #t~malloc588.base, #t~malloc588.offset; [2025-03-17 07:13:48,760 INFO L1322 $ProcedureCfgBuilder]: dead code at ProgramPoint L10103: call ULTIMATE.dealloc(~#elemsize~0.base, ~#elemsize~0.offset);havoc ~#elemsize~0.base, ~#elemsize~0.offset; [2025-03-17 07:13:48,781 INFO L1322 $ProcedureCfgBuilder]: dead code at ProgramPoint L2590: havoc #t~ret57#1; [2025-03-17 07:13:48,783 INFO L1322 $ProcedureCfgBuilder]: dead code at ProgramPoint L266: havoc #t~nondet9; [2025-03-17 07:13:48,823 INFO L1322 $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; [2025-03-17 07:13:48,828 INFO L1322 $ProcedureCfgBuilder]: dead code at ProgramPoint L9146: havoc #t~mem1150; [2025-03-17 07:13:48,915 INFO L1322 $ProcedureCfgBuilder]: dead code at ProgramPoint L2630: havoc #t~bitwise60;havoc #t~short61; [2025-03-17 07:13:48,932 INFO L1322 $ProcedureCfgBuilder]: dead code at ProgramPoint L2617: havoc #t~ret59#1; [2025-03-17 07:13:54,510 INFO L1322 $ProcedureCfgBuilder]: dead code at ProgramPoint L263: havoc nondet_size_t_#t~nondet6#1; [2025-03-17 07:13:54,590 INFO L? ?]: Removed 117 outVars from TransFormulas that were not future-live. [2025-03-17 07:13:54,590 INFO L307 CfgBuilder]: Performing block encoding [2025-03-17 07:13:54,601 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-03-17 07:13:54,601 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2025-03-17 07:13:54,602 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 17.03 07:13:54 BoogieIcfgContainer [2025-03-17 07:13:54,602 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-03-17 07:13:54,606 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-03-17 07:13:54,606 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-03-17 07:13:54,610 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-03-17 07:13:54,610 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.03 07:13:45" (1/3) ... [2025-03-17 07:13:54,611 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@52f467fc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.03 07:13:54, skipping insertion in model container [2025-03-17 07:13:54,612 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 07:13:48" (2/3) ... [2025-03-17 07:13:54,612 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@52f467fc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.03 07:13:54, skipping insertion in model container [2025-03-17 07:13:54,612 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 17.03 07:13:54" (3/3) ... [2025-03-17 07:13:54,613 INFO L128 eAbstractionObserver]: Analyzing ICFG aws_hash_table_get_entry_count_harness.i [2025-03-17 07:13:54,625 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-03-17 07:13:54,627 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG aws_hash_table_get_entry_count_harness.i that has 15 procedures, 114 locations, 1 initial locations, 0 loop locations, and 1 error locations. [2025-03-17 07:13:54,672 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-03-17 07:13:54,680 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;@51896d2, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-03-17 07:13:54,681 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2025-03-17 07:13:54,683 INFO L276 IsEmpty]: Start isEmpty. Operand has 114 states, 72 states have (on average 1.1944444444444444) internal successors, (86), 73 states have internal predecessors, (86), 26 states have call successors, (26), 14 states have call predecessors, (26), 14 states have return successors, (26), 26 states have call predecessors, (26), 26 states have call successors, (26) [2025-03-17 07:13:54,690 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2025-03-17 07:13:54,690 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 07:13:54,690 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 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] [2025-03-17 07:13:54,691 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-17 07:13:54,694 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 07:13:54,694 INFO L85 PathProgramCache]: Analyzing trace with hash 639561961, now seen corresponding path program 1 times [2025-03-17 07:13:54,699 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 07:13:54,700 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1499352028] [2025-03-17 07:13:54,700 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 07:13:54,700 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 07:13:59,474 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 105 statements into 1 equivalence classes. [2025-03-17 07:13:59,813 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 105 of 105 statements. [2025-03-17 07:13:59,813 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 07:13:59,813 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 07:14:00,361 INFO L134 CoverageAnalysis]: Checked inductivity of 75 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 65 trivial. 0 not checked. [2025-03-17 07:14:00,361 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 07:14:00,361 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1499352028] [2025-03-17 07:14:00,362 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1499352028] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-17 07:14:00,362 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1860140830] [2025-03-17 07:14:00,362 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 07:14:00,362 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 07:14:00,363 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 07:14:00,365 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-17 07:14:00,367 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2025-03-17 07:14:05,376 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 105 statements into 1 equivalence classes. [2025-03-17 07:14:05,907 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 105 of 105 statements. [2025-03-17 07:14:05,907 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 07:14:05,907 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 07:14:05,930 INFO L256 TraceCheckSpWp]: Trace formula consists of 4311 conjuncts, 1 conjuncts are in the unsatisfiable core [2025-03-17 07:14:05,942 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 07:14:05,964 INFO L134 CoverageAnalysis]: Checked inductivity of 75 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 65 trivial. 0 not checked. [2025-03-17 07:14:05,964 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-17 07:14:05,964 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1860140830] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 07:14:05,964 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-03-17 07:14:05,965 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2 [2025-03-17 07:14:05,966 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [892115068] [2025-03-17 07:14:05,971 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 07:14:05,978 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2025-03-17 07:14:05,978 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 07:14:06,002 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2025-03-17 07:14:06,002 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-03-17 07:14:06,005 INFO L87 Difference]: Start difference. First operand has 114 states, 72 states have (on average 1.1944444444444444) internal successors, (86), 73 states have internal predecessors, (86), 26 states have call successors, (26), 14 states have call predecessors, (26), 14 states have return successors, (26), 26 states have call predecessors, (26), 26 states have call successors, (26) Second operand has 2 states, 2 states have (on average 23.5) internal successors, (47), 2 states have internal predecessors, (47), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2025-03-17 07:14:06,043 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 07:14:06,044 INFO L93 Difference]: Finished difference Result 221 states and 284 transitions. [2025-03-17 07:14:06,046 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-03-17 07:14:06,047 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 23.5) internal successors, (47), 2 states have internal predecessors, (47), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) Word has length 105 [2025-03-17 07:14:06,048 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 07:14:06,053 INFO L225 Difference]: With dead ends: 221 [2025-03-17 07:14:06,053 INFO L226 Difference]: Without dead ends: 111 [2025-03-17 07:14:06,057 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 106 GetRequests, 106 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-03-17 07:14:06,060 INFO L435 NwaCegarLoop]: 134 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, 134 SdHoareTripleChecker+Invalid, 1 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-03-17 07:14:06,061 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 134 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-17 07:14:06,074 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 111 states. [2025-03-17 07:14:06,091 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 111 to 111. [2025-03-17 07:14:06,093 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 111 states, 70 states have (on average 1.1571428571428573) internal successors, (81), 71 states have internal predecessors, (81), 26 states have call successors, (26), 14 states have call predecessors, (26), 14 states have return successors, (25), 25 states have call predecessors, (25), 25 states have call successors, (25) [2025-03-17 07:14:06,098 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 111 states to 111 states and 132 transitions. [2025-03-17 07:14:06,101 INFO L78 Accepts]: Start accepts. Automaton has 111 states and 132 transitions. Word has length 105 [2025-03-17 07:14:06,101 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 07:14:06,101 INFO L471 AbstractCegarLoop]: Abstraction has 111 states and 132 transitions. [2025-03-17 07:14:06,102 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 23.5) internal successors, (47), 2 states have internal predecessors, (47), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2025-03-17 07:14:06,102 INFO L276 IsEmpty]: Start isEmpty. Operand 111 states and 132 transitions. [2025-03-17 07:14:06,105 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2025-03-17 07:14:06,105 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 07:14:06,108 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 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] [2025-03-17 07:14:06,129 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2025-03-17 07:14:06,309 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2025-03-17 07:14:06,309 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-17 07:14:06,310 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 07:14:06,310 INFO L85 PathProgramCache]: Analyzing trace with hash 1938376683, now seen corresponding path program 1 times [2025-03-17 07:14:06,310 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 07:14:06,310 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [782090226] [2025-03-17 07:14:06,310 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 07:14:06,310 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 07:14:11,430 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 105 statements into 1 equivalence classes. [2025-03-17 07:14:11,575 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 105 of 105 statements. [2025-03-17 07:14:11,578 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 07:14:11,579 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 07:14:12,799 INFO L134 CoverageAnalysis]: Checked inductivity of 75 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 68 trivial. 0 not checked. [2025-03-17 07:14:12,799 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 07:14:12,799 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [782090226] [2025-03-17 07:14:12,799 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [782090226] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-17 07:14:12,799 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [957593073] [2025-03-17 07:14:12,799 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 07:14:12,799 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 07:14:12,799 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 07:14:12,803 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) [2025-03-17 07:14:12,806 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2025-03-17 07:14:17,896 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 105 statements into 1 equivalence classes. [2025-03-17 07:14:18,384 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 105 of 105 statements. [2025-03-17 07:14:18,384 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 07:14:18,384 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 07:14:18,409 INFO L256 TraceCheckSpWp]: Trace formula consists of 4311 conjuncts, 7 conjuncts are in the unsatisfiable core [2025-03-17 07:14:18,417 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 07:14:18,556 INFO L134 CoverageAnalysis]: Checked inductivity of 75 backedges. 27 proven. 0 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2025-03-17 07:14:18,556 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-17 07:14:18,556 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [957593073] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 07:14:18,557 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-03-17 07:14:18,557 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 5 [2025-03-17 07:14:18,557 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1078656787] [2025-03-17 07:14:18,557 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 07:14:18,558 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-03-17 07:14:18,558 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 07:14:18,559 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-03-17 07:14:18,559 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-03-17 07:14:18,559 INFO L87 Difference]: Start difference. First operand 111 states and 132 transitions. Second operand has 5 states, 5 states have (on average 10.8) internal successors, (54), 5 states have internal predecessors, (54), 2 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (16), 3 states have call predecessors, (16), 2 states have call successors, (16) [2025-03-17 07:14:18,812 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 07:14:18,812 INFO L93 Difference]: Finished difference Result 216 states and 257 transitions. [2025-03-17 07:14:18,813 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-03-17 07:14:18,813 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.8) internal successors, (54), 5 states have internal predecessors, (54), 2 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (16), 3 states have call predecessors, (16), 2 states have call successors, (16) Word has length 105 [2025-03-17 07:14:18,813 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 07:14:18,815 INFO L225 Difference]: With dead ends: 216 [2025-03-17 07:14:18,815 INFO L226 Difference]: Without dead ends: 116 [2025-03-17 07:14:18,816 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 109 GetRequests, 106 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-03-17 07:14:18,816 INFO L435 NwaCegarLoop]: 128 mSDtfsCounter, 0 mSDsluCounter, 380 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 508 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2025-03-17 07:14:18,817 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 508 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2025-03-17 07:14:18,817 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 116 states. [2025-03-17 07:14:18,825 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 116 to 116. [2025-03-17 07:14:18,825 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 116 states, 74 states have (on average 1.1486486486486487) internal successors, (85), 75 states have internal predecessors, (85), 26 states have call successors, (26), 14 states have call predecessors, (26), 15 states have return successors, (26), 26 states have call predecessors, (26), 25 states have call successors, (26) [2025-03-17 07:14:18,827 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 116 states to 116 states and 137 transitions. [2025-03-17 07:14:18,827 INFO L78 Accepts]: Start accepts. Automaton has 116 states and 137 transitions. Word has length 105 [2025-03-17 07:14:18,828 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 07:14:18,828 INFO L471 AbstractCegarLoop]: Abstraction has 116 states and 137 transitions. [2025-03-17 07:14:18,828 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.8) internal successors, (54), 5 states have internal predecessors, (54), 2 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (16), 3 states have call predecessors, (16), 2 states have call successors, (16) [2025-03-17 07:14:18,828 INFO L276 IsEmpty]: Start isEmpty. Operand 116 states and 137 transitions. [2025-03-17 07:14:18,830 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2025-03-17 07:14:18,830 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 07:14:18,831 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 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] [2025-03-17 07:14:18,853 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2025-03-17 07:14:19,031 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 [2025-03-17 07:14:19,032 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-17 07:14:19,032 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 07:14:19,033 INFO L85 PathProgramCache]: Analyzing trace with hash 1976866269, now seen corresponding path program 1 times [2025-03-17 07:14:19,033 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 07:14:19,033 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [824812274] [2025-03-17 07:14:19,033 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 07:14:19,033 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 07:14:23,176 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 115 statements into 1 equivalence classes. [2025-03-17 07:14:23,399 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 115 of 115 statements. [2025-03-17 07:14:23,400 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 07:14:23,400 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 07:14:26,688 INFO L134 CoverageAnalysis]: Checked inductivity of 80 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 80 trivial. 0 not checked. [2025-03-17 07:14:26,689 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 07:14:26,689 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [824812274] [2025-03-17 07:14:26,690 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [824812274] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 07:14:26,690 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 07:14:26,690 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2025-03-17 07:14:26,690 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1372614389] [2025-03-17 07:14:26,690 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 07:14:26,690 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2025-03-17 07:14:26,690 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 07:14:26,691 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2025-03-17 07:14:26,691 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2025-03-17 07:14:26,691 INFO L87 Difference]: Start difference. First operand 116 states and 137 transitions. Second operand has 10 states, 9 states have (on average 5.333333333333333) internal successors, (48), 9 states have internal predecessors, (48), 4 states have call successors, (17), 2 states have call predecessors, (17), 3 states have return successors, (16), 4 states have call predecessors, (16), 4 states have call successors, (16) [2025-03-17 07:14:30,757 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2025-03-17 07:14:35,255 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.50s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2025-03-17 07:14:39,348 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 07:14:39,348 INFO L93 Difference]: Finished difference Result 218 states and 256 transitions. [2025-03-17 07:14:39,349 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2025-03-17 07:14:39,349 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 5.333333333333333) internal successors, (48), 9 states have internal predecessors, (48), 4 states have call successors, (17), 2 states have call predecessors, (17), 3 states have return successors, (16), 4 states have call predecessors, (16), 4 states have call successors, (16) Word has length 115 [2025-03-17 07:14:39,350 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 07:14:39,352 INFO L225 Difference]: With dead ends: 218 [2025-03-17 07:14:39,352 INFO L226 Difference]: Without dead ends: 121 [2025-03-17 07:14:39,353 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=36, Invalid=120, Unknown=0, NotChecked=0, Total=156 [2025-03-17 07:14:39,354 INFO L435 NwaCegarLoop]: 122 mSDtfsCounter, 19 mSDsluCounter, 847 mSDsCounter, 0 mSdLazyCounter, 177 mSolverCounterSat, 1 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 30 SdHoareTripleChecker+Valid, 969 SdHoareTripleChecker+Invalid, 180 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 177 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12.0s IncrementalHoareTripleChecker+Time [2025-03-17 07:14:39,354 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [30 Valid, 969 Invalid, 180 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 177 Invalid, 2 Unknown, 0 Unchecked, 12.0s Time] [2025-03-17 07:14:39,355 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 121 states. [2025-03-17 07:14:39,365 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 121 to 118. [2025-03-17 07:14:39,365 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 118 states, 76 states have (on average 1.144736842105263) internal successors, (87), 77 states have internal predecessors, (87), 26 states have call successors, (26), 14 states have call predecessors, (26), 15 states have return successors, (26), 26 states have call predecessors, (26), 25 states have call successors, (26) [2025-03-17 07:14:39,366 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 118 states to 118 states and 139 transitions. [2025-03-17 07:14:39,369 INFO L78 Accepts]: Start accepts. Automaton has 118 states and 139 transitions. Word has length 115 [2025-03-17 07:14:39,370 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 07:14:39,370 INFO L471 AbstractCegarLoop]: Abstraction has 118 states and 139 transitions. [2025-03-17 07:14:39,370 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 5.333333333333333) internal successors, (48), 9 states have internal predecessors, (48), 4 states have call successors, (17), 2 states have call predecessors, (17), 3 states have return successors, (16), 4 states have call predecessors, (16), 4 states have call successors, (16) [2025-03-17 07:14:39,370 INFO L276 IsEmpty]: Start isEmpty. Operand 118 states and 139 transitions. [2025-03-17 07:14:39,372 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2025-03-17 07:14:39,372 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 07:14:39,372 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 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] [2025-03-17 07:14:39,372 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2025-03-17 07:14:39,373 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-17 07:14:39,373 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 07:14:39,373 INFO L85 PathProgramCache]: Analyzing trace with hash -1184910434, now seen corresponding path program 1 times [2025-03-17 07:14:39,373 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 07:14:39,373 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2109789037] [2025-03-17 07:14:39,373 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 07:14:39,373 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 07:14:43,435 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 115 statements into 1 equivalence classes. [2025-03-17 07:14:43,560 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 115 of 115 statements. [2025-03-17 07:14:43,561 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 07:14:43,561 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 07:14:44,894 INFO L134 CoverageAnalysis]: Checked inductivity of 80 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 80 trivial. 0 not checked. [2025-03-17 07:14:44,895 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 07:14:44,895 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2109789037] [2025-03-17 07:14:44,895 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2109789037] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 07:14:44,895 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 07:14:44,895 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-03-17 07:14:44,895 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1748630455] [2025-03-17 07:14:44,895 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 07:14:44,895 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-03-17 07:14:44,895 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 07:14:44,896 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-03-17 07:14:44,896 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2025-03-17 07:14:44,896 INFO L87 Difference]: Start difference. First operand 118 states and 139 transitions. Second operand has 5 states, 5 states have (on average 9.6) internal successors, (48), 5 states have internal predecessors, (48), 3 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) [2025-03-17 07:14:45,183 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 07:14:45,183 INFO L93 Difference]: Finished difference Result 219 states and 256 transitions. [2025-03-17 07:14:45,184 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-03-17 07:14:45,184 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.6) internal successors, (48), 5 states have internal predecessors, (48), 3 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) Word has length 115 [2025-03-17 07:14:45,184 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 07:14:45,186 INFO L225 Difference]: With dead ends: 219 [2025-03-17 07:14:45,186 INFO L226 Difference]: Without dead ends: 116 [2025-03-17 07:14:45,188 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2025-03-17 07:14:45,188 INFO L435 NwaCegarLoop]: 132 mSDtfsCounter, 14 mSDsluCounter, 224 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 24 SdHoareTripleChecker+Valid, 356 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2025-03-17 07:14:45,189 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [24 Valid, 356 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2025-03-17 07:14:45,190 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 116 states. [2025-03-17 07:14:45,195 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 116 to 116. [2025-03-17 07:14:45,196 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 116 states, 74 states have (on average 1.1216216216216217) internal successors, (83), 75 states have internal predecessors, (83), 26 states have call successors, (26), 14 states have call predecessors, (26), 15 states have return successors, (26), 26 states have call predecessors, (26), 25 states have call successors, (26) [2025-03-17 07:14:45,197 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 116 states to 116 states and 135 transitions. [2025-03-17 07:14:45,197 INFO L78 Accepts]: Start accepts. Automaton has 116 states and 135 transitions. Word has length 115 [2025-03-17 07:14:45,198 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 07:14:45,198 INFO L471 AbstractCegarLoop]: Abstraction has 116 states and 135 transitions. [2025-03-17 07:14:45,198 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.6) internal successors, (48), 5 states have internal predecessors, (48), 3 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) [2025-03-17 07:14:45,198 INFO L276 IsEmpty]: Start isEmpty. Operand 116 states and 135 transitions. [2025-03-17 07:14:45,199 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2025-03-17 07:14:45,199 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 07:14:45,199 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 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] [2025-03-17 07:14:45,199 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2025-03-17 07:14:45,199 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-17 07:14:45,200 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 07:14:45,200 INFO L85 PathProgramCache]: Analyzing trace with hash -265218453, now seen corresponding path program 1 times [2025-03-17 07:14:45,200 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 07:14:45,200 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1002292409] [2025-03-17 07:14:45,200 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 07:14:45,201 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 07:14:49,143 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 121 statements into 1 equivalence classes. [2025-03-17 07:14:49,236 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 121 of 121 statements. [2025-03-17 07:14:49,236 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 07:14:49,236 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 07:14:51,719 INFO L134 CoverageAnalysis]: Checked inductivity of 80 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 80 trivial. 0 not checked. [2025-03-17 07:14:51,720 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 07:14:51,720 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1002292409] [2025-03-17 07:14:51,720 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1002292409] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 07:14:51,720 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 07:14:51,720 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2025-03-17 07:14:51,720 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1340343251] [2025-03-17 07:14:51,720 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 07:14:51,720 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2025-03-17 07:14:51,720 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 07:14:51,721 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2025-03-17 07:14:51,721 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2025-03-17 07:14:51,721 INFO L87 Difference]: Start difference. First operand 116 states and 135 transitions. Second operand has 7 states, 6 states have (on average 8.666666666666666) internal successors, (52), 7 states have internal predecessors, (52), 3 states have call successors, (18), 2 states have call predecessors, (18), 3 states have return successors, (17), 2 states have call predecessors, (17), 3 states have call successors, (17) [2025-03-17 07:14:52,480 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 07:14:52,480 INFO L93 Difference]: Finished difference Result 212 states and 245 transitions. [2025-03-17 07:14:52,480 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2025-03-17 07:14:52,481 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 8.666666666666666) internal successors, (52), 7 states have internal predecessors, (52), 3 states have call successors, (18), 2 states have call predecessors, (18), 3 states have return successors, (17), 2 states have call predecessors, (17), 3 states have call successors, (17) Word has length 121 [2025-03-17 07:14:52,481 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 07:14:52,482 INFO L225 Difference]: With dead ends: 212 [2025-03-17 07:14:52,482 INFO L226 Difference]: Without dead ends: 116 [2025-03-17 07:14:52,483 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2025-03-17 07:14:52,484 INFO L435 NwaCegarLoop]: 124 mSDtfsCounter, 2 mSDsluCounter, 596 mSDsCounter, 0 mSdLazyCounter, 51 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 720 SdHoareTripleChecker+Invalid, 51 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 51 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2025-03-17 07:14:52,484 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 720 Invalid, 51 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 51 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2025-03-17 07:14:52,487 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 116 states. [2025-03-17 07:14:52,493 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 116 to 116. [2025-03-17 07:14:52,494 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 116 states, 74 states have (on average 1.1081081081081081) internal successors, (82), 75 states have internal predecessors, (82), 26 states have call successors, (26), 14 states have call predecessors, (26), 15 states have return successors, (26), 26 states have call predecessors, (26), 25 states have call successors, (26) [2025-03-17 07:14:52,495 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 116 states to 116 states and 134 transitions. [2025-03-17 07:14:52,495 INFO L78 Accepts]: Start accepts. Automaton has 116 states and 134 transitions. Word has length 121 [2025-03-17 07:14:52,495 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 07:14:52,495 INFO L471 AbstractCegarLoop]: Abstraction has 116 states and 134 transitions. [2025-03-17 07:14:52,496 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 8.666666666666666) internal successors, (52), 7 states have internal predecessors, (52), 3 states have call successors, (18), 2 states have call predecessors, (18), 3 states have return successors, (17), 2 states have call predecessors, (17), 3 states have call successors, (17) [2025-03-17 07:14:52,496 INFO L276 IsEmpty]: Start isEmpty. Operand 116 states and 134 transitions. [2025-03-17 07:14:52,497 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2025-03-17 07:14:52,497 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 07:14:52,497 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 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] [2025-03-17 07:14:52,497 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2025-03-17 07:14:52,497 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-17 07:14:52,498 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 07:14:52,498 INFO L85 PathProgramCache]: Analyzing trace with hash 934369216, now seen corresponding path program 1 times [2025-03-17 07:14:52,498 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 07:14:52,498 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1945325436] [2025-03-17 07:14:52,498 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 07:14:52,498 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 07:14:56,487 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 128 statements into 1 equivalence classes. [2025-03-17 07:14:57,222 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 128 of 128 statements. [2025-03-17 07:14:57,222 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 07:14:57,222 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 07:15:00,936 INFO L134 CoverageAnalysis]: Checked inductivity of 85 backedges. 3 proven. 15 refuted. 0 times theorem prover too weak. 67 trivial. 0 not checked. [2025-03-17 07:15:00,936 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 07:15:00,937 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1945325436] [2025-03-17 07:15:00,937 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1945325436] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-17 07:15:00,937 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [423413992] [2025-03-17 07:15:00,937 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 07:15:00,937 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 07:15:00,937 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 07:15:00,939 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) [2025-03-17 07:15:00,941 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2025-03-17 07:15:06,163 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 128 statements into 1 equivalence classes. [2025-03-17 07:15:06,764 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 128 of 128 statements. [2025-03-17 07:15:06,764 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 07:15:06,764 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 07:15:06,797 INFO L256 TraceCheckSpWp]: Trace formula consists of 4367 conjuncts, 72 conjuncts are in the unsatisfiable core [2025-03-17 07:15:06,808 INFO L279 TraceCheckSpWp]: Computing forward predicates...