./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/aws-c-common/aws_array_list_ensure_capacity_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_array_list_ensure_capacity_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 c12ad62b7b197015493bfb3c1dd9a5de2922d9b16e39f249961c276d8b82591b --- Real Ultimate output --- This is Ultimate 0.3.0-?-8fc3dc6-m [2025-03-17 06:51:41,603 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-03-17 06:51:41,657 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2025-03-17 06:51:41,662 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-03-17 06:51:41,662 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-03-17 06:51:41,679 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-03-17 06:51:41,680 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-03-17 06:51:41,680 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-03-17 06:51:41,681 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-03-17 06:51:41,681 INFO L153 SettingsManager]: * Use memory slicer=true [2025-03-17 06:51:41,682 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-03-17 06:51:41,682 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-03-17 06:51:41,682 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-03-17 06:51:41,682 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-03-17 06:51:41,682 INFO L153 SettingsManager]: * Use SBE=true [2025-03-17 06:51:41,682 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-03-17 06:51:41,682 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-03-17 06:51:41,682 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-03-17 06:51:41,682 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-03-17 06:51:41,682 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-03-17 06:51:41,682 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-03-17 06:51:41,683 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-03-17 06:51:41,683 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-03-17 06:51:41,683 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-03-17 06:51:41,683 INFO L153 SettingsManager]: * Use constant arrays=true [2025-03-17 06:51:41,683 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-03-17 06:51:41,683 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-03-17 06:51:41,683 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-03-17 06:51:41,683 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-03-17 06:51:41,683 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-17 06:51:41,683 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-03-17 06:51:41,683 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-03-17 06:51:41,683 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-03-17 06:51:41,683 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-03-17 06:51:41,683 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-03-17 06:51:41,683 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-03-17 06:51:41,683 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-03-17 06:51:41,683 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-03-17 06:51:41,683 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-03-17 06:51:41,683 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-03-17 06:51:41,683 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 -> c12ad62b7b197015493bfb3c1dd9a5de2922d9b16e39f249961c276d8b82591b [2025-03-17 06:51:41,922 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-03-17 06:51:41,934 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-03-17 06:51:41,937 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-03-17 06:51:41,938 INFO L270 PluginConnector]: Initializing CDTParser... [2025-03-17 06:51:41,938 INFO L274 PluginConnector]: CDTParser initialized [2025-03-17 06:51:41,939 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/aws-c-common/aws_array_list_ensure_capacity_harness.i [2025-03-17 06:51:43,171 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c17db26dc/adf334d6c6774cccbcf4003a340dc3f9/FLAGc988e7ec5 [2025-03-17 06:51:43,576 INFO L384 CDTParser]: Found 1 translation units. [2025-03-17 06:51:43,578 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_array_list_ensure_capacity_harness.i [2025-03-17 06:51:43,609 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c17db26dc/adf334d6c6774cccbcf4003a340dc3f9/FLAGc988e7ec5 [2025-03-17 06:51:43,622 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c17db26dc/adf334d6c6774cccbcf4003a340dc3f9 [2025-03-17 06:51:43,623 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-03-17 06:51:43,625 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-03-17 06:51:43,626 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-03-17 06:51:43,626 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-03-17 06:51:43,629 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-03-17 06:51:43,630 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.03 06:51:43" (1/1) ... [2025-03-17 06:51:43,631 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@24f8b392 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 06:51:43, skipping insertion in model container [2025-03-17 06:51:43,632 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.03 06:51:43" (1/1) ... [2025-03-17 06:51:43,712 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-03-17 06:51:43,912 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_array_list_ensure_capacity_harness.i[4504,4517] [2025-03-17 06:51:43,918 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_array_list_ensure_capacity_harness.i[4564,4577] [2025-03-17 06:51:44,413 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 06:51:44,414 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 06:51:44,414 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 06:51:44,414 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 06:51:44,415 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 06:51:44,425 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 06:51:44,426 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 06:51:44,427 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 06:51:44,427 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 06:51:44,428 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 06:51:44,429 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 06:51:44,429 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 06:51:44,429 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 06:51:44,739 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 06:51:44,743 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 06:51:44,751 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 06:51:44,761 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 06:51:44,812 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 06:51:44,816 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-17 06:51:44,837 INFO L200 MainTranslator]: Completed pre-run [2025-03-17 06:51:44,848 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_array_list_ensure_capacity_harness.i[4504,4517] [2025-03-17 06:51:44,848 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_array_list_ensure_capacity_harness.i[4564,4577] [2025-03-17 06:51:44,891 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 06:51:44,892 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 06:51:44,892 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 06:51:44,894 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 06:51:44,895 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 06:51:44,902 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 06:51:44,902 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 06:51:44,903 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 06:51:44,904 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 06:51:44,904 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 06:51:44,905 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 06:51:44,905 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 06:51:44,905 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 06:51:45,001 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 06:51:45,001 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 06:51:45,002 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 06:51:45,010 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 06:51:45,015 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" : : "r"(pBuf) : "memory"); [7775-7786] [2025-03-17 06:51:45,032 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 06:51:45,033 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-17 06:51:45,174 INFO L204 MainTranslator]: Completed translation [2025-03-17 06:51:45,174 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 06:51:45 WrapperNode [2025-03-17 06:51:45,174 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-03-17 06:51:45,175 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-03-17 06:51:45,175 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-03-17 06:51:45,175 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-03-17 06:51:45,179 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 06:51:45" (1/1) ... [2025-03-17 06:51:45,232 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 06:51:45" (1/1) ... [2025-03-17 06:51:45,287 INFO L138 Inliner]: procedures = 680, calls = 1679, calls flagged for inlining = 52, calls inlined = 11, statements flattened = 812 [2025-03-17 06:51:45,287 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-03-17 06:51:45,288 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-03-17 06:51:45,288 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-03-17 06:51:45,288 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-03-17 06:51:45,297 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 06:51:45" (1/1) ... [2025-03-17 06:51:45,297 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 06:51:45" (1/1) ... [2025-03-17 06:51:45,303 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 06:51:45" (1/1) ... [2025-03-17 06:51:45,361 INFO L175 MemorySlicer]: Split 328 memory accesses to 7 slices as follows [238, 2, 9, 65, 6, 6, 2]. 73 percent of accesses are in the largest equivalence class. The 24 initializations are split as follows [6, 2, 5, 10, 1, 0, 0]. The 242 writes are split as follows [232, 0, 1, 5, 1, 2, 1]. [2025-03-17 06:51:45,362 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 06:51:45" (1/1) ... [2025-03-17 06:51:45,362 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 06:51:45" (1/1) ... [2025-03-17 06:51:45,402 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 06:51:45" (1/1) ... [2025-03-17 06:51:45,404 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 06:51:45" (1/1) ... [2025-03-17 06:51:45,411 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 06:51:45" (1/1) ... [2025-03-17 06:51:45,420 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 06:51:45" (1/1) ... [2025-03-17 06:51:45,432 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-03-17 06:51:45,436 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-03-17 06:51:45,436 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-03-17 06:51:45,436 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-03-17 06:51:45,437 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 06:51:45" (1/1) ... [2025-03-17 06:51:45,443 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-17 06:51:45,454 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 06:51:45,475 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 06:51:45,478 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 06:51:45,496 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2025-03-17 06:51:45,496 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_is_bounded [2025-03-17 06:51:45,496 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_is_bounded [2025-03-17 06:51:45,497 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_is_valid [2025-03-17 06:51:45,497 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_is_valid [2025-03-17 06:51:45,497 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_bool [2025-03-17 06:51:45,497 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_bool [2025-03-17 06:51:45,498 INFO L130 BoogieDeclarations]: Found specification of procedure aws_allocator_is_valid [2025-03-17 06:51:45,498 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_allocator_is_valid [2025-03-17 06:51:45,498 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#0 [2025-03-17 06:51:45,498 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#1 [2025-03-17 06:51:45,498 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#2 [2025-03-17 06:51:45,498 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#3 [2025-03-17 06:51:45,498 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#4 [2025-03-17 06:51:45,498 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#5 [2025-03-17 06:51:45,498 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#6 [2025-03-17 06:51:45,498 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2025-03-17 06:51:45,499 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2025-03-17 06:51:45,499 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2025-03-17 06:51:45,499 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2025-03-17 06:51:45,499 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2025-03-17 06:51:45,499 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2025-03-17 06:51:45,499 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#6 [2025-03-17 06:51:45,500 INFO L130 BoogieDeclarations]: Found specification of procedure aws_raise_error [2025-03-17 06:51:45,500 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_raise_error [2025-03-17 06:51:45,500 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2025-03-17 06:51:45,501 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2025-03-17 06:51:45,501 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2025-03-17 06:51:45,501 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-03-17 06:51:45,501 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2025-03-17 06:51:45,501 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2025-03-17 06:51:45,501 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2025-03-17 06:51:45,501 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2025-03-17 06:51:45,501 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#4 [2025-03-17 06:51:45,501 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#5 [2025-03-17 06:51:45,501 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#6 [2025-03-17 06:51:45,501 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy_impl [2025-03-17 06:51:45,501 INFO L138 BoogieDeclarations]: Found implementation of procedure memcpy_impl [2025-03-17 06:51:45,501 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-03-17 06:51:45,501 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-03-17 06:51:45,501 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2025-03-17 06:51:45,501 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2025-03-17 06:51:45,501 INFO L130 BoogieDeclarations]: Found specification of procedure assert_byte_from_buffer_matches [2025-03-17 06:51:45,501 INFO L138 BoogieDeclarations]: Found implementation of procedure assert_byte_from_buffer_matches [2025-03-17 06:51:45,501 INFO L130 BoogieDeclarations]: Found specification of procedure aws_mul_size_checked [2025-03-17 06:51:45,501 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_mul_size_checked [2025-03-17 06:51:45,501 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#0 [2025-03-17 06:51:45,501 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#1 [2025-03-17 06:51:45,501 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#2 [2025-03-17 06:51:45,502 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#3 [2025-03-17 06:51:45,502 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#4 [2025-03-17 06:51:45,502 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#5 [2025-03-17 06:51:45,502 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#6 [2025-03-17 06:51:45,502 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_malloc [2025-03-17 06:51:45,502 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_malloc [2025-03-17 06:51:45,502 INFO L130 BoogieDeclarations]: Found specification of procedure aws_mem_release [2025-03-17 06:51:45,502 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_mem_release [2025-03-17 06:51:45,502 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2025-03-17 06:51:45,502 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2025-03-17 06:51:45,502 INFO L130 BoogieDeclarations]: Found specification of procedure my_memcpy [2025-03-17 06:51:45,502 INFO L138 BoogieDeclarations]: Found implementation of procedure my_memcpy [2025-03-17 06:51:45,502 INFO L130 BoogieDeclarations]: Found specification of procedure aws_mem_acquire [2025-03-17 06:51:45,502 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_mem_acquire [2025-03-17 06:51:45,502 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2025-03-17 06:51:45,502 INFO L130 BoogieDeclarations]: Found specification of procedure __CPROVER_overflow_plus [2025-03-17 06:51:45,502 INFO L138 BoogieDeclarations]: Found implementation of procedure __CPROVER_overflow_plus [2025-03-17 06:51:45,502 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2025-03-17 06:51:45,502 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2025-03-17 06:51:45,502 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2025-03-17 06:51:45,502 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2025-03-17 06:51:45,502 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#4 [2025-03-17 06:51:45,502 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#5 [2025-03-17 06:51:45,502 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#6 [2025-03-17 06:51:45,502 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#0 [2025-03-17 06:51:45,502 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#1 [2025-03-17 06:51:45,502 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#2 [2025-03-17 06:51:45,502 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#3 [2025-03-17 06:51:45,502 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#4 [2025-03-17 06:51:45,502 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#5 [2025-03-17 06:51:45,502 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#6 [2025-03-17 06:51:45,502 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_allocator [2025-03-17 06:51:45,502 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_allocator [2025-03-17 06:51:45,502 INFO L130 BoogieDeclarations]: Found specification of procedure __CPROVER_overflow_mult [2025-03-17 06:51:45,502 INFO L138 BoogieDeclarations]: Found implementation of procedure __CPROVER_overflow_mult [2025-03-17 06:51:45,502 INFO L130 BoogieDeclarations]: Found specification of procedure aws_add_size_checked [2025-03-17 06:51:45,502 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_add_size_checked [2025-03-17 06:51:45,502 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_ensure_capacity [2025-03-17 06:51:45,502 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_ensure_capacity [2025-03-17 06:51:45,502 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2025-03-17 06:51:45,502 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2025-03-17 06:51:45,502 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2025-03-17 06:51:45,503 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2025-03-17 06:51:45,503 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2025-03-17 06:51:45,503 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2025-03-17 06:51:45,503 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#6 [2025-03-17 06:51:45,503 INFO L130 BoogieDeclarations]: Found specification of procedure ensure_array_list_has_allocated_data_member [2025-03-17 06:51:45,503 INFO L138 BoogieDeclarations]: Found implementation of procedure ensure_array_list_has_allocated_data_member [2025-03-17 06:51:45,503 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-03-17 06:51:45,503 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2025-03-17 06:51:45,503 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2025-03-17 06:51:45,503 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2025-03-17 06:51:45,503 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2025-03-17 06:51:45,503 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2025-03-17 06:51:45,503 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#6 [2025-03-17 06:51:45,806 INFO L256 CfgBuilder]: Building ICFG [2025-03-17 06:51:45,808 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2025-03-17 06:51:45,858 INFO L1322 $ProcedureCfgBuilder]: dead code at ProgramPoint L2782: havoc #t~malloc77.base, #t~malloc77.offset; [2025-03-17 06:51:45,924 INFO L1322 $ProcedureCfgBuilder]: dead code at ProgramPoint L2588: havoc #t~ret57#1; [2025-03-17 06:51:45,943 INFO L1322 $ProcedureCfgBuilder]: dead code at ProgramPoint L267: havoc nondet_uint8_t_#t~nondet10#1; [2025-03-17 06:51:46,047 INFO L1322 $ProcedureCfgBuilder]: dead code at ProgramPoint L7518: call ULTIMATE.dealloc(~#necessary_size~0#1.base, ~#necessary_size~0#1.offset);havoc ~#necessary_size~0#1.base, ~#necessary_size~0#1.offset; [2025-03-17 06:51:46,047 INFO L1322 $ProcedureCfgBuilder]: dead code at ProgramPoint L7527: havoc #t~ret758#1; [2025-03-17 06:51:46,047 INFO L1322 $ProcedureCfgBuilder]: dead code at ProgramPoint L7540: havoc #t~ret765#1; [2025-03-17 06:51:46,047 INFO L1322 $ProcedureCfgBuilder]: dead code at ProgramPoint L7417: call ULTIMATE.dealloc(aws_array_list_calc_necessary_size_~#index_inc~0#1.base, aws_array_list_calc_necessary_size_~#index_inc~0#1.offset);havoc aws_array_list_calc_necessary_size_~#index_inc~0#1.base, aws_array_list_calc_necessary_size_~#index_inc~0#1.offset; [2025-03-17 06:51:46,053 INFO L1322 $ProcedureCfgBuilder]: dead code at ProgramPoint L2796: havoc #t~ret81;havoc #t~ite83.base, #t~ite83.offset;havoc #t~ret82.base, #t~ret82.offset; [2025-03-17 06:51:46,132 INFO L1322 $ProcedureCfgBuilder]: dead code at ProgramPoint L3268: call ULTIMATE.dealloc(~#required_size~0.base, ~#required_size~0.offset);havoc ~#required_size~0.base, ~#required_size~0.offset; [2025-03-17 06:51:46,136 INFO L1322 $ProcedureCfgBuilder]: dead code at ProgramPoint L261: havoc #t~nondet4; [2025-03-17 06:51:46,152 INFO L1322 $ProcedureCfgBuilder]: dead code at ProgramPoint L2821: havoc #t~ret89.base, #t~ret89.offset; [2025-03-17 06:51:46,159 INFO L1322 $ProcedureCfgBuilder]: dead code at ProgramPoint L7396: havoc #t~ret682.base, #t~ret682.offset; [2025-03-17 06:51:46,184 INFO L1322 $ProcedureCfgBuilder]: dead code at ProgramPoint L2615: havoc #t~ret59#1; [2025-03-17 06:51:51,776 INFO L1322 $ProcedureCfgBuilder]: dead code at ProgramPoint L263: havoc nondet_size_t_#t~nondet6#1; [2025-03-17 06:51:51,841 INFO L? ?]: Removed 156 outVars from TransFormulas that were not future-live. [2025-03-17 06:51:51,842 INFO L307 CfgBuilder]: Performing block encoding [2025-03-17 06:51:51,855 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-03-17 06:51:51,855 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2025-03-17 06:51:51,856 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 17.03 06:51:51 BoogieIcfgContainer [2025-03-17 06:51:51,856 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-03-17 06:51:51,858 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-03-17 06:51:51,858 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-03-17 06:51:51,862 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-03-17 06:51:51,863 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.03 06:51:43" (1/3) ... [2025-03-17 06:51:51,864 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3a089405 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.03 06:51:51, skipping insertion in model container [2025-03-17 06:51:51,864 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 06:51:45" (2/3) ... [2025-03-17 06:51:51,864 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3a089405 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.03 06:51:51, skipping insertion in model container [2025-03-17 06:51:51,865 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 17.03 06:51:51" (3/3) ... [2025-03-17 06:51:51,866 INFO L128 eAbstractionObserver]: Analyzing ICFG aws_array_list_ensure_capacity_harness.i [2025-03-17 06:51:51,882 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-03-17 06:51:51,883 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG aws_array_list_ensure_capacity_harness.i that has 22 procedures, 239 locations, 1 initial locations, 0 loop locations, and 1 error locations. [2025-03-17 06:51:51,947 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-03-17 06:51:51,957 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;@3820bd18, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-03-17 06:51:51,957 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2025-03-17 06:51:51,963 INFO L276 IsEmpty]: Start isEmpty. Operand has 239 states, 143 states have (on average 1.2097902097902098) internal successors, (173), 144 states have internal predecessors, (173), 73 states have call successors, (73), 21 states have call predecessors, (73), 21 states have return successors, (73), 73 states have call predecessors, (73), 73 states have call successors, (73) [2025-03-17 06:51:51,971 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2025-03-17 06:51:51,971 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 06:51:51,972 INFO L218 NwaCegarLoop]: trace histogram [5, 5, 5, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 06:51:51,972 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-17 06:51:51,976 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 06:51:51,976 INFO L85 PathProgramCache]: Analyzing trace with hash 1582710469, now seen corresponding path program 1 times [2025-03-17 06:51:51,981 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 06:51:51,982 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1929892105] [2025-03-17 06:51:51,982 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 06:51:51,983 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 06:51:56,596 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 86 statements into 1 equivalence classes. [2025-03-17 06:51:56,987 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 86 of 86 statements. [2025-03-17 06:51:56,988 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 06:51:56,988 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 06:51:57,441 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 56 trivial. 0 not checked. [2025-03-17 06:51:57,441 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 06:51:57,442 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1929892105] [2025-03-17 06:51:57,442 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1929892105] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-17 06:51:57,443 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1159723440] [2025-03-17 06:51:57,443 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 06:51:57,443 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 06:51:57,444 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 06:51:57,446 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 06:51:57,448 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 06:52:01,812 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 86 statements into 1 equivalence classes. [2025-03-17 06:52:02,294 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 86 of 86 statements. [2025-03-17 06:52:02,294 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 06:52:02,294 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 06:52:02,318 INFO L256 TraceCheckSpWp]: Trace formula consists of 4265 conjuncts, 1 conjuncts are in the unsatisfiable core [2025-03-17 06:52:02,328 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 06:52:02,339 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 56 trivial. 0 not checked. [2025-03-17 06:52:02,339 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-17 06:52:02,339 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1159723440] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 06:52:02,339 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-03-17 06:52:02,340 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2 [2025-03-17 06:52:02,344 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [549236084] [2025-03-17 06:52:02,344 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 06:52:02,346 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2025-03-17 06:52:02,347 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 06:52:02,362 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2025-03-17 06:52:02,362 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-03-17 06:52:02,366 INFO L87 Difference]: Start difference. First operand has 239 states, 143 states have (on average 1.2097902097902098) internal successors, (173), 144 states have internal predecessors, (173), 73 states have call successors, (73), 21 states have call predecessors, (73), 21 states have return successors, (73), 73 states have call predecessors, (73), 73 states have call successors, (73) Second operand has 2 states, 2 states have (on average 18.5) internal successors, (37), 2 states have internal predecessors, (37), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2025-03-17 06:52:02,412 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 06:52:02,414 INFO L93 Difference]: Finished difference Result 472 states and 675 transitions. [2025-03-17 06:52:02,415 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-03-17 06:52:02,416 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 18.5) internal successors, (37), 2 states have internal predecessors, (37), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 86 [2025-03-17 06:52:02,416 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 06:52:02,422 INFO L225 Difference]: With dead ends: 472 [2025-03-17 06:52:02,423 INFO L226 Difference]: Without dead ends: 230 [2025-03-17 06:52:02,426 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 87 GetRequests, 87 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 06:52:02,430 INFO L435 NwaCegarLoop]: 317 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 317 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-03-17 06:52:02,431 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 317 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-17 06:52:02,443 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 230 states. [2025-03-17 06:52:02,469 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 230 to 230. [2025-03-17 06:52:02,470 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 230 states, 136 states have (on average 1.1838235294117647) internal successors, (161), 138 states have internal predecessors, (161), 73 states have call successors, (73), 21 states have call predecessors, (73), 20 states have return successors, (70), 70 states have call predecessors, (70), 70 states have call successors, (70) [2025-03-17 06:52:02,474 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 230 states to 230 states and 304 transitions. [2025-03-17 06:52:02,476 INFO L78 Accepts]: Start accepts. Automaton has 230 states and 304 transitions. Word has length 86 [2025-03-17 06:52:02,477 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 06:52:02,477 INFO L471 AbstractCegarLoop]: Abstraction has 230 states and 304 transitions. [2025-03-17 06:52:02,477 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 18.5) internal successors, (37), 2 states have internal predecessors, (37), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2025-03-17 06:52:02,477 INFO L276 IsEmpty]: Start isEmpty. Operand 230 states and 304 transitions. [2025-03-17 06:52:02,479 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2025-03-17 06:52:02,479 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 06:52:02,480 INFO L218 NwaCegarLoop]: trace histogram [5, 5, 5, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 06:52:02,497 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2025-03-17 06:52:02,680 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 06:52:02,681 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-17 06:52:02,682 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 06:52:02,682 INFO L85 PathProgramCache]: Analyzing trace with hash -1832168536, now seen corresponding path program 1 times [2025-03-17 06:52:02,683 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 06:52:02,683 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2027645749] [2025-03-17 06:52:02,683 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 06:52:02,683 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 06:52:06,514 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 86 statements into 1 equivalence classes. [2025-03-17 06:52:06,635 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 86 of 86 statements. [2025-03-17 06:52:06,636 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 06:52:06,636 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 06:52:07,781 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2025-03-17 06:52:07,782 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 06:52:07,782 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2027645749] [2025-03-17 06:52:07,782 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2027645749] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-17 06:52:07,782 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [348090686] [2025-03-17 06:52:07,782 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 06:52:07,782 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 06:52:07,782 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 06:52:07,784 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 06:52:07,786 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 06:52:12,098 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 86 statements into 1 equivalence classes. [2025-03-17 06:52:12,582 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 86 of 86 statements. [2025-03-17 06:52:12,583 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 06:52:12,583 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 06:52:12,604 INFO L256 TraceCheckSpWp]: Trace formula consists of 4265 conjuncts, 5 conjuncts are in the unsatisfiable core [2025-03-17 06:52:12,611 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 06:52:13,119 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 36 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2025-03-17 06:52:13,122 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-17 06:52:13,123 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [348090686] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 06:52:13,123 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-03-17 06:52:13,123 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 8 [2025-03-17 06:52:13,123 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1485888923] [2025-03-17 06:52:13,123 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 06:52:13,124 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-03-17 06:52:13,124 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 06:52:13,124 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-03-17 06:52:13,125 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2025-03-17 06:52:13,126 INFO L87 Difference]: Start difference. First operand 230 states and 304 transitions. Second operand has 5 states, 5 states have (on average 8.2) internal successors, (41), 5 states have internal predecessors, (41), 3 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2025-03-17 06:52:14,258 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 06:52:14,258 INFO L93 Difference]: Finished difference Result 437 states and 586 transitions. [2025-03-17 06:52:14,258 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-03-17 06:52:14,259 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.2) internal successors, (41), 5 states have internal predecessors, (41), 3 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) Word has length 86 [2025-03-17 06:52:14,259 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 06:52:14,262 INFO L225 Difference]: With dead ends: 437 [2025-03-17 06:52:14,262 INFO L226 Difference]: Without dead ends: 232 [2025-03-17 06:52:14,264 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 90 GetRequests, 84 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2025-03-17 06:52:14,264 INFO L435 NwaCegarLoop]: 281 mSDtfsCounter, 30 mSDsluCounter, 777 mSDsCounter, 0 mSdLazyCounter, 106 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 45 SdHoareTripleChecker+Valid, 1058 SdHoareTripleChecker+Invalid, 107 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 106 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2025-03-17 06:52:14,264 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [45 Valid, 1058 Invalid, 107 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 106 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2025-03-17 06:52:14,265 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 232 states. [2025-03-17 06:52:14,286 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 232 to 232. [2025-03-17 06:52:14,288 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 232 states, 137 states have (on average 1.1824817518248176) internal successors, (162), 140 states have internal predecessors, (162), 73 states have call successors, (73), 21 states have call predecessors, (73), 21 states have return successors, (80), 70 states have call predecessors, (80), 70 states have call successors, (80) [2025-03-17 06:52:14,290 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 232 states to 232 states and 315 transitions. [2025-03-17 06:52:14,292 INFO L78 Accepts]: Start accepts. Automaton has 232 states and 315 transitions. Word has length 86 [2025-03-17 06:52:14,292 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 06:52:14,292 INFO L471 AbstractCegarLoop]: Abstraction has 232 states and 315 transitions. [2025-03-17 06:52:14,292 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.2) internal successors, (41), 5 states have internal predecessors, (41), 3 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2025-03-17 06:52:14,292 INFO L276 IsEmpty]: Start isEmpty. Operand 232 states and 315 transitions. [2025-03-17 06:52:14,294 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2025-03-17 06:52:14,295 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 06:52:14,295 INFO L218 NwaCegarLoop]: trace histogram [5, 5, 5, 4, 4, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 06:52:14,311 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2025-03-17 06:52:14,496 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 06:52:14,496 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-17 06:52:14,497 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 06:52:14,497 INFO L85 PathProgramCache]: Analyzing trace with hash -507752351, now seen corresponding path program 1 times [2025-03-17 06:52:14,497 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 06:52:14,497 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2017705922] [2025-03-17 06:52:14,497 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 06:52:14,497 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 06:52:18,144 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 101 statements into 1 equivalence classes. [2025-03-17 06:52:18,272 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 101 of 101 statements. [2025-03-17 06:52:18,272 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 06:52:18,272 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 06:52:19,572 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 3 proven. 6 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2025-03-17 06:52:19,573 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 06:52:19,573 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2017705922] [2025-03-17 06:52:19,573 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2017705922] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-17 06:52:19,573 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1142361308] [2025-03-17 06:52:19,573 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 06:52:19,573 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 06:52:19,573 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 06:52:19,575 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 06:52:19,576 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 06:52:23,838 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 101 statements into 1 equivalence classes. [2025-03-17 06:52:24,235 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 101 of 101 statements. [2025-03-17 06:52:24,236 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 06:52:24,236 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 06:52:24,257 INFO L256 TraceCheckSpWp]: Trace formula consists of 4392 conjuncts, 7 conjuncts are in the unsatisfiable core [2025-03-17 06:52:24,261 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 06:52:25,280 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 43 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2025-03-17 06:52:25,281 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-17 06:52:25,281 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1142361308] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 06:52:25,281 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-03-17 06:52:25,281 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [7] total 12 [2025-03-17 06:52:25,281 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1388678772] [2025-03-17 06:52:25,281 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 06:52:25,282 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2025-03-17 06:52:25,282 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 06:52:25,282 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2025-03-17 06:52:25,282 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=106, Unknown=0, NotChecked=0, Total=132 [2025-03-17 06:52:25,283 INFO L87 Difference]: Start difference. First operand 232 states and 315 transitions. Second operand has 7 states, 6 states have (on average 9.166666666666666) internal successors, (55), 6 states have internal predecessors, (55), 4 states have call successors, (18), 3 states have call predecessors, (18), 3 states have return successors, (16), 3 states have call predecessors, (16), 4 states have call successors, (16) [2025-03-17 06:52:27,256 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 06:52:27,256 INFO L93 Difference]: Finished difference Result 429 states and 580 transitions. [2025-03-17 06:52:27,256 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2025-03-17 06:52:27,257 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 9.166666666666666) internal successors, (55), 6 states have internal predecessors, (55), 4 states have call successors, (18), 3 states have call predecessors, (18), 3 states have return successors, (16), 3 states have call predecessors, (16), 4 states have call successors, (16) Word has length 101 [2025-03-17 06:52:27,257 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 06:52:27,259 INFO L225 Difference]: With dead ends: 429 [2025-03-17 06:52:27,259 INFO L226 Difference]: Without dead ends: 232 [2025-03-17 06:52:27,260 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 108 GetRequests, 97 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=32, Invalid=124, Unknown=0, NotChecked=0, Total=156 [2025-03-17 06:52:27,261 INFO L435 NwaCegarLoop]: 275 mSDtfsCounter, 110 mSDsluCounter, 1201 mSDsCounter, 0 mSdLazyCounter, 157 mSolverCounterSat, 67 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 123 SdHoareTripleChecker+Valid, 1476 SdHoareTripleChecker+Invalid, 224 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 67 IncrementalHoareTripleChecker+Valid, 157 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2025-03-17 06:52:27,261 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [123 Valid, 1476 Invalid, 224 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [67 Valid, 157 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2025-03-17 06:52:27,262 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 232 states. [2025-03-17 06:52:27,271 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 232 to 232. [2025-03-17 06:52:27,272 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 232 states, 137 states have (on average 1.1824817518248176) internal successors, (162), 140 states have internal predecessors, (162), 73 states have call successors, (73), 21 states have call predecessors, (73), 21 states have return successors, (74), 70 states have call predecessors, (74), 70 states have call successors, (74) [2025-03-17 06:52:27,273 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 232 states to 232 states and 309 transitions. [2025-03-17 06:52:27,274 INFO L78 Accepts]: Start accepts. Automaton has 232 states and 309 transitions. Word has length 101 [2025-03-17 06:52:27,274 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 06:52:27,274 INFO L471 AbstractCegarLoop]: Abstraction has 232 states and 309 transitions. [2025-03-17 06:52:27,275 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 9.166666666666666) internal successors, (55), 6 states have internal predecessors, (55), 4 states have call successors, (18), 3 states have call predecessors, (18), 3 states have return successors, (16), 3 states have call predecessors, (16), 4 states have call successors, (16) [2025-03-17 06:52:27,275 INFO L276 IsEmpty]: Start isEmpty. Operand 232 states and 309 transitions. [2025-03-17 06:52:27,276 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2025-03-17 06:52:27,276 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 06:52:27,276 INFO L218 NwaCegarLoop]: trace histogram [5, 5, 5, 4, 4, 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 06:52:27,294 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2025-03-17 06:52:27,477 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 [2025-03-17 06:52:27,477 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-17 06:52:27,477 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 06:52:27,477 INFO L85 PathProgramCache]: Analyzing trace with hash -808550830, now seen corresponding path program 2 times [2025-03-17 06:52:27,477 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 06:52:27,477 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1542702907] [2025-03-17 06:52:27,478 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-17 06:52:27,478 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 06:52:31,297 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 116 statements into 2 equivalence classes. [2025-03-17 06:52:31,393 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 32 of 116 statements. [2025-03-17 06:52:31,394 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-03-17 06:52:31,394 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 06:52:32,179 INFO L134 CoverageAnalysis]: Checked inductivity of 79 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 79 trivial. 0 not checked. [2025-03-17 06:52:32,180 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 06:52:32,180 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1542702907] [2025-03-17 06:52:32,180 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1542702907] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 06:52:32,180 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 06:52:32,180 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-03-17 06:52:32,180 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [654704853] [2025-03-17 06:52:32,180 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 06:52:32,180 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-03-17 06:52:32,180 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 06:52:32,181 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-03-17 06:52:32,181 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-03-17 06:52:32,181 INFO L87 Difference]: Start difference. First operand 232 states and 309 transitions. Second operand has 5 states, 5 states have (on average 9.4) internal successors, (47), 5 states have internal predecessors, (47), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (16), 3 states have call predecessors, (16), 2 states have call successors, (16) [2025-03-17 06:52:32,372 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 06:52:32,373 INFO L93 Difference]: Finished difference Result 406 states and 532 transitions. [2025-03-17 06:52:32,375 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-03-17 06:52:32,375 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.4) internal successors, (47), 5 states have internal predecessors, (47), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (16), 3 states have call predecessors, (16), 2 states have call successors, (16) Word has length 116 [2025-03-17 06:52:32,375 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 06:52:32,377 INFO L225 Difference]: With dead ends: 406 [2025-03-17 06:52:32,377 INFO L226 Difference]: Without dead ends: 237 [2025-03-17 06:52:32,378 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-03-17 06:52:32,378 INFO L435 NwaCegarLoop]: 301 mSDtfsCounter, 0 mSDsluCounter, 897 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 1198 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2025-03-17 06:52:32,381 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 1198 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2025-03-17 06:52:32,383 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 237 states. [2025-03-17 06:52:32,406 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 237 to 237. [2025-03-17 06:52:32,407 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 237 states, 141 states have (on average 1.177304964539007) internal successors, (166), 144 states have internal predecessors, (166), 73 states have call successors, (73), 21 states have call predecessors, (73), 22 states have return successors, (75), 71 states have call predecessors, (75), 70 states have call successors, (75) [2025-03-17 06:52:32,410 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 237 states to 237 states and 314 transitions. [2025-03-17 06:52:32,413 INFO L78 Accepts]: Start accepts. Automaton has 237 states and 314 transitions. Word has length 116 [2025-03-17 06:52:32,414 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 06:52:32,414 INFO L471 AbstractCegarLoop]: Abstraction has 237 states and 314 transitions. [2025-03-17 06:52:32,414 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.4) internal successors, (47), 5 states have internal predecessors, (47), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (16), 3 states have call predecessors, (16), 2 states have call successors, (16) [2025-03-17 06:52:32,414 INFO L276 IsEmpty]: Start isEmpty. Operand 237 states and 314 transitions. [2025-03-17 06:52:32,415 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2025-03-17 06:52:32,415 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 06:52:32,417 INFO L218 NwaCegarLoop]: trace histogram [5, 5, 5, 4, 4, 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 06:52:32,417 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2025-03-17 06:52:32,417 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-17 06:52:32,418 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 06:52:32,418 INFO L85 PathProgramCache]: Analyzing trace with hash 501284597, now seen corresponding path program 1 times [2025-03-17 06:52:32,418 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 06:52:32,418 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [837552386] [2025-03-17 06:52:32,418 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 06:52:32,418 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 06:52:35,933 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 121 statements into 1 equivalence classes. [2025-03-17 06:52:36,031 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 121 of 121 statements. [2025-03-17 06:52:36,031 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 06:52:36,031 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 06:52:37,582 INFO L134 CoverageAnalysis]: Checked inductivity of 79 backedges. 6 proven. 3 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2025-03-17 06:52:37,582 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 06:52:37,582 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [837552386] [2025-03-17 06:52:37,583 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [837552386] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-17 06:52:37,583 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1616868257] [2025-03-17 06:52:37,583 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 06:52:37,583 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 06:52:37,583 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 06:52:37,585 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) [2025-03-17 06:52:37,586 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2025-03-17 06:52:41,868 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 121 statements into 1 equivalence classes. [2025-03-17 06:52:42,262 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 121 of 121 statements. [2025-03-17 06:52:42,262 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 06:52:42,262 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 06:52:42,284 INFO L256 TraceCheckSpWp]: Trace formula consists of 4519 conjuncts, 9 conjuncts are in the unsatisfiable core [2025-03-17 06:52:42,290 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 06:52:43,655 INFO L134 CoverageAnalysis]: Checked inductivity of 79 backedges. 34 proven. 0 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2025-03-17 06:52:43,655 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-17 06:52:43,655 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1616868257] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 06:52:43,655 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-03-17 06:52:43,655 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [8] total 14 [2025-03-17 06:52:43,655 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1781465006] [2025-03-17 06:52:43,655 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 06:52:43,655 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2025-03-17 06:52:43,655 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 06:52:43,656 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2025-03-17 06:52:43,656 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=151, Unknown=0, NotChecked=0, Total=182 [2025-03-17 06:52:43,656 INFO L87 Difference]: Start difference. First operand 237 states and 314 transitions. Second operand has 8 states, 7 states have (on average 8.285714285714286) internal successors, (58), 7 states have internal predecessors, (58), 5 states have call successors, (19), 3 states have call predecessors, (19), 3 states have return successors, (17), 4 states have call predecessors, (17), 5 states have call successors, (17) [2025-03-17 06:52:45,673 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 06:52:45,673 INFO L93 Difference]: Finished difference Result 436 states and 573 transitions. [2025-03-17 06:52:45,674 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-03-17 06:52:45,674 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 8.285714285714286) internal successors, (58), 7 states have internal predecessors, (58), 5 states have call successors, (19), 3 states have call predecessors, (19), 3 states have return successors, (17), 4 states have call predecessors, (17), 5 states have call successors, (17) Word has length 121 [2025-03-17 06:52:45,674 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 06:52:45,676 INFO L225 Difference]: With dead ends: 436 [2025-03-17 06:52:45,676 INFO L226 Difference]: Without dead ends: 235 [2025-03-17 06:52:45,677 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 130 GetRequests, 116 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=46, Invalid=194, Unknown=0, NotChecked=0, Total=240 [2025-03-17 06:52:45,677 INFO L435 NwaCegarLoop]: 278 mSDtfsCounter, 120 mSDsluCounter, 1468 mSDsCounter, 0 mSdLazyCounter, 170 mSolverCounterSat, 65 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 133 SdHoareTripleChecker+Valid, 1746 SdHoareTripleChecker+Invalid, 235 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 65 IncrementalHoareTripleChecker+Valid, 170 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2025-03-17 06:52:45,677 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [133 Valid, 1746 Invalid, 235 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [65 Valid, 170 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2025-03-17 06:52:45,678 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 235 states. [2025-03-17 06:52:45,685 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 235 to 235. [2025-03-17 06:52:45,685 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 235 states, 140 states have (on average 1.1714285714285715) internal successors, (164), 142 states have internal predecessors, (164), 73 states have call successors, (73), 21 states have call predecessors, (73), 21 states have return successors, (71), 71 states have call predecessors, (71), 70 states have call successors, (71) [2025-03-17 06:52:45,687 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 235 states to 235 states and 308 transitions. [2025-03-17 06:52:45,687 INFO L78 Accepts]: Start accepts. Automaton has 235 states and 308 transitions. Word has length 121 [2025-03-17 06:52:45,687 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 06:52:45,688 INFO L471 AbstractCegarLoop]: Abstraction has 235 states and 308 transitions. [2025-03-17 06:52:45,688 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 8.285714285714286) internal successors, (58), 7 states have internal predecessors, (58), 5 states have call successors, (19), 3 states have call predecessors, (19), 3 states have return successors, (17), 4 states have call predecessors, (17), 5 states have call successors, (17) [2025-03-17 06:52:45,688 INFO L276 IsEmpty]: Start isEmpty. Operand 235 states and 308 transitions. [2025-03-17 06:52:45,689 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2025-03-17 06:52:45,689 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 06:52:45,689 INFO L218 NwaCegarLoop]: trace histogram [5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 06:52:45,708 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2025-03-17 06:52:45,889 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 06:52:45,890 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-17 06:52:45,890 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 06:52:45,890 INFO L85 PathProgramCache]: Analyzing trace with hash -1336461351, now seen corresponding path program 1 times [2025-03-17 06:52:45,890 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 06:52:45,890 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [91865754] [2025-03-17 06:52:45,890 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 06:52:45,891 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 06:52:49,452 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 151 statements into 1 equivalence classes. [2025-03-17 06:52:51,316 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 151 of 151 statements. [2025-03-17 06:52:51,317 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 06:52:51,317 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unknown [2025-03-17 06:52:51,351 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [367288054] [2025-03-17 06:52:51,351 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 06:52:51,351 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 06:52:51,351 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 06:52:51,354 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) [2025-03-17 06:52:51,355 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2025-03-17 06:52:55,840 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 151 statements into 1 equivalence classes.