./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/aws-c-common/aws_hash_table_swap_harness_negated.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version e2fb8bed Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/aws-c-common/aws_hash_table_swap_harness_negated.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 4327c1d0a3798141341f75fbfeacee6e434c9dfc309a1d3ed778376faac4823c --- Real Ultimate output --- This is Ultimate 0.3.0-?-e2fb8be-m [2025-03-08 18:07:39,830 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-03-08 18:07:39,898 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2025-03-08 18:07:39,904 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-03-08 18:07:39,905 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-03-08 18:07:39,923 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-03-08 18:07:39,924 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-03-08 18:07:39,924 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-03-08 18:07:39,924 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-03-08 18:07:39,924 INFO L153 SettingsManager]: * Use memory slicer=true [2025-03-08 18:07:39,924 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-03-08 18:07:39,925 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-03-08 18:07:39,925 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-03-08 18:07:39,925 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-03-08 18:07:39,925 INFO L153 SettingsManager]: * Use SBE=true [2025-03-08 18:07:39,925 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-03-08 18:07:39,925 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-03-08 18:07:39,925 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-03-08 18:07:39,925 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-03-08 18:07:39,925 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-03-08 18:07:39,925 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-03-08 18:07:39,925 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-03-08 18:07:39,925 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-03-08 18:07:39,925 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-03-08 18:07:39,925 INFO L153 SettingsManager]: * Use constant arrays=true [2025-03-08 18:07:39,925 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-03-08 18:07:39,926 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-03-08 18:07:39,926 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-03-08 18:07:39,926 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-03-08 18:07:39,926 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-08 18:07:39,926 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-03-08 18:07:39,926 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-03-08 18:07:39,926 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-03-08 18:07:39,926 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-03-08 18:07:39,926 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-03-08 18:07:39,926 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-03-08 18:07:39,926 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-03-08 18:07:39,926 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-03-08 18:07:39,926 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-03-08 18:07:39,926 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-03-08 18:07:39,926 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 -> 4327c1d0a3798141341f75fbfeacee6e434c9dfc309a1d3ed778376faac4823c [2025-03-08 18:07:40,179 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-03-08 18:07:40,186 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-03-08 18:07:40,189 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-03-08 18:07:40,190 INFO L270 PluginConnector]: Initializing CDTParser... [2025-03-08 18:07:40,190 INFO L274 PluginConnector]: CDTParser initialized [2025-03-08 18:07:40,191 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/aws-c-common/aws_hash_table_swap_harness_negated.i [2025-03-08 18:07:41,322 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ff650c3dd/18d1f4f1b5764013998b0c28d5e29f5b/FLAGd68c769aa [2025-03-08 18:07:41,833 INFO L384 CDTParser]: Found 1 translation units. [2025-03-08 18:07:41,834 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_hash_table_swap_harness_negated.i [2025-03-08 18:07:41,874 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ff650c3dd/18d1f4f1b5764013998b0c28d5e29f5b/FLAGd68c769aa [2025-03-08 18:07:41,930 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ff650c3dd/18d1f4f1b5764013998b0c28d5e29f5b [2025-03-08 18:07:41,933 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-03-08 18:07:41,934 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-03-08 18:07:41,935 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-03-08 18:07:41,935 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-03-08 18:07:41,942 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-03-08 18:07:41,943 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.03 06:07:41" (1/1) ... [2025-03-08 18:07:41,943 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3f3b5f5a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 06:07:41, skipping insertion in model container [2025-03-08 18:07:41,944 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.03 06:07:41" (1/1) ... [2025-03-08 18:07:42,024 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-03-08 18:07:42,306 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_hash_table_swap_harness_negated.i[4493,4506] [2025-03-08 18:07:42,317 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_hash_table_swap_harness_negated.i[4553,4566] [2025-03-08 18:07:43,025 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 18:07:43,026 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 18:07:43,027 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 18:07:43,027 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 18:07:43,028 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 18:07:43,036 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 18:07:43,037 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 18:07:43,038 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 18:07:43,038 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 18:07:43,039 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 18:07:43,040 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 18:07:43,040 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 18:07:43,041 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 18:07:43,747 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 18:07:43,748 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 18:07:43,781 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 18:07:43,782 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 18:07:43,790 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 18:07:43,792 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 18:07:43,810 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 18:07:43,811 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 18:07:43,812 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 18:07:43,813 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 18:07:43,813 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 18:07:43,813 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 18:07:43,814 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 18:07:43,852 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_hash_table_swap_harness_negated.i[228391,228404] [2025-03-08 18:07:43,854 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-08 18:07:43,882 INFO L200 MainTranslator]: Completed pre-run [2025-03-08 18:07:43,891 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_hash_table_swap_harness_negated.i[4493,4506] [2025-03-08 18:07:43,892 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_hash_table_swap_harness_negated.i[4553,4566] [2025-03-08 18:07:43,930 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 18:07:43,930 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 18:07:43,931 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 18:07:43,931 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 18:07:43,931 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 18:07:43,940 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 18:07:43,940 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 18:07:43,941 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 18:07:43,941 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 18:07:43,941 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 18:07:43,942 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 18:07:43,942 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 18:07:43,942 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 18:07:44,007 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" : : "r"(pBuf) : "memory"); [7526-7537] [2025-03-08 18:07:44,110 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 18:07:44,111 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 18:07:44,116 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 18:07:44,117 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 18:07:44,119 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 18:07:44,119 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 18:07:44,127 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 18:07:44,128 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 18:07:44,128 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 18:07:44,129 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 18:07:44,129 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 18:07:44,129 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 18:07:44,130 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 18:07:44,149 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_hash_table_swap_harness_negated.i[228391,228404] [2025-03-08 18:07:44,150 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-08 18:07:44,322 INFO L204 MainTranslator]: Completed translation [2025-03-08 18:07:44,323 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 06:07:44 WrapperNode [2025-03-08 18:07:44,323 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-03-08 18:07:44,324 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-03-08 18:07:44,324 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-03-08 18:07:44,324 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-03-08 18:07:44,329 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 06:07:44" (1/1) ... [2025-03-08 18:07:44,402 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 06:07:44" (1/1) ... [2025-03-08 18:07:44,468 INFO L138 Inliner]: procedures = 763, calls = 2436, calls flagged for inlining = 67, calls inlined = 9, statements flattened = 598 [2025-03-08 18:07:44,468 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-03-08 18:07:44,469 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-03-08 18:07:44,469 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-03-08 18:07:44,469 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-03-08 18:07:44,481 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 06:07:44" (1/1) ... [2025-03-08 18:07:44,481 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 06:07:44" (1/1) ... [2025-03-08 18:07:44,485 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 06:07:44" (1/1) ... [2025-03-08 18:07:44,556 INFO L175 MemorySlicer]: Split 284 memory accesses to 9 slices as follows [2, 238, 2, 9, 17, 6, 2, 3, 5]. 84 percent of accesses are in the largest equivalence class. The 14 initializations are split as follows [2, 6, 1, 0, 0, 0, 0, 0, 5]. The 240 writes are split as follows [0, 232, 0, 3, 1, 2, 1, 1, 0]. [2025-03-08 18:07:44,556 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 06:07:44" (1/1) ... [2025-03-08 18:07:44,557 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 06:07:44" (1/1) ... [2025-03-08 18:07:44,592 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 06:07:44" (1/1) ... [2025-03-08 18:07:44,599 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 06:07:44" (1/1) ... [2025-03-08 18:07:44,614 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 06:07:44" (1/1) ... [2025-03-08 18:07:44,621 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 06:07:44" (1/1) ... [2025-03-08 18:07:44,639 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-03-08 18:07:44,640 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-03-08 18:07:44,640 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-03-08 18:07:44,640 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-03-08 18:07:44,641 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 06:07:44" (1/1) ... [2025-03-08 18:07:44,648 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-08 18:07:44,661 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-08 18:07:44,678 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2025-03-08 18:07:44,685 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2025-03-08 18:07:44,702 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#0 [2025-03-08 18:07:44,702 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#1 [2025-03-08 18:07:44,702 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#2 [2025-03-08 18:07:44,702 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#3 [2025-03-08 18:07:44,702 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#4 [2025-03-08 18:07:44,702 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#5 [2025-03-08 18:07:44,702 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#6 [2025-03-08 18:07:44,702 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#7 [2025-03-08 18:07:44,702 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#8 [2025-03-08 18:07:44,702 INFO L130 BoogieDeclarations]: Found specification of procedure save_byte_from_hash_table [2025-03-08 18:07:44,702 INFO L138 BoogieDeclarations]: Found implementation of procedure save_byte_from_hash_table [2025-03-08 18:07:44,702 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2025-03-08 18:07:44,702 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#0 [2025-03-08 18:07:44,702 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#1 [2025-03-08 18:07:44,702 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#2 [2025-03-08 18:07:44,702 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#3 [2025-03-08 18:07:44,702 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#4 [2025-03-08 18:07:44,702 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#5 [2025-03-08 18:07:44,702 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#6 [2025-03-08 18:07:44,702 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#7 [2025-03-08 18:07:44,702 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#8 [2025-03-08 18:07:44,702 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2025-03-08 18:07:44,702 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2025-03-08 18:07:44,702 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2025-03-08 18:07:44,702 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2025-03-08 18:07:44,702 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2025-03-08 18:07:44,702 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2025-03-08 18:07:44,702 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#6 [2025-03-08 18:07:44,702 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#7 [2025-03-08 18:07:44,702 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#8 [2025-03-08 18:07:44,702 INFO L130 BoogieDeclarations]: Found specification of procedure aws_raise_error [2025-03-08 18:07:44,703 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_raise_error [2025-03-08 18:07:44,703 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2025-03-08 18:07:44,703 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2025-03-08 18:07:44,703 INFO L130 BoogieDeclarations]: Found specification of procedure hash_table_state_is_valid [2025-03-08 18:07:44,703 INFO L138 BoogieDeclarations]: Found implementation of procedure hash_table_state_is_valid [2025-03-08 18:07:44,703 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2025-03-08 18:07:44,703 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-03-08 18:07:44,703 INFO L130 BoogieDeclarations]: Found specification of procedure hash_table_state_required_bytes [2025-03-08 18:07:44,703 INFO L138 BoogieDeclarations]: Found implementation of procedure hash_table_state_required_bytes [2025-03-08 18:07:44,703 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2025-03-08 18:07:44,703 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2025-03-08 18:07:44,703 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2025-03-08 18:07:44,703 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2025-03-08 18:07:44,703 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#4 [2025-03-08 18:07:44,703 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#5 [2025-03-08 18:07:44,703 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#6 [2025-03-08 18:07:44,703 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#7 [2025-03-08 18:07:44,703 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#8 [2025-03-08 18:07:44,703 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-03-08 18:07:44,703 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-03-08 18:07:44,703 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2025-03-08 18:07:44,703 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2025-03-08 18:07:44,703 INFO L130 BoogieDeclarations]: Found specification of procedure aws_mul_size_checked [2025-03-08 18:07:44,703 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_mul_size_checked [2025-03-08 18:07:44,703 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#0 [2025-03-08 18:07:44,703 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#1 [2025-03-08 18:07:44,703 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#2 [2025-03-08 18:07:44,703 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#3 [2025-03-08 18:07:44,703 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#4 [2025-03-08 18:07:44,703 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#5 [2025-03-08 18:07:44,703 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#6 [2025-03-08 18:07:44,703 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#7 [2025-03-08 18:07:44,703 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#8 [2025-03-08 18:07:44,707 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2025-03-08 18:07:44,708 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2025-03-08 18:07:44,708 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2025-03-08 18:07:44,708 INFO L130 BoogieDeclarations]: Found specification of procedure __CPROVER_overflow_plus [2025-03-08 18:07:44,708 INFO L138 BoogieDeclarations]: Found implementation of procedure __CPROVER_overflow_plus [2025-03-08 18:07:44,708 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2025-03-08 18:07:44,708 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2025-03-08 18:07:44,708 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2025-03-08 18:07:44,708 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2025-03-08 18:07:44,708 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#4 [2025-03-08 18:07:44,708 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#5 [2025-03-08 18:07:44,708 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#6 [2025-03-08 18:07:44,708 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#7 [2025-03-08 18:07:44,708 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#8 [2025-03-08 18:07:44,708 INFO L130 BoogieDeclarations]: Found specification of procedure aws_hash_table_is_valid [2025-03-08 18:07:44,708 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_hash_table_is_valid [2025-03-08 18:07:44,708 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#0 [2025-03-08 18:07:44,708 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#1 [2025-03-08 18:07:44,708 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#2 [2025-03-08 18:07:44,708 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#3 [2025-03-08 18:07:44,708 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#4 [2025-03-08 18:07:44,708 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#5 [2025-03-08 18:07:44,708 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#6 [2025-03-08 18:07:44,708 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#7 [2025-03-08 18:07:44,708 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#8 [2025-03-08 18:07:44,708 INFO L130 BoogieDeclarations]: Found specification of procedure ensure_allocated_hash_table [2025-03-08 18:07:44,708 INFO L138 BoogieDeclarations]: Found implementation of procedure ensure_allocated_hash_table [2025-03-08 18:07:44,708 INFO L130 BoogieDeclarations]: Found specification of procedure __CPROVER_overflow_mult [2025-03-08 18:07:44,708 INFO L138 BoogieDeclarations]: Found implementation of procedure __CPROVER_overflow_mult [2025-03-08 18:07:44,708 INFO L130 BoogieDeclarations]: Found specification of procedure aws_add_size_checked [2025-03-08 18:07:44,708 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_add_size_checked [2025-03-08 18:07:44,708 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_uint64_t [2025-03-08 18:07:44,708 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_uint64_t [2025-03-08 18:07:44,708 INFO L130 BoogieDeclarations]: Found specification of procedure check_hash_table_unchanged [2025-03-08 18:07:44,708 INFO L138 BoogieDeclarations]: Found implementation of procedure check_hash_table_unchanged [2025-03-08 18:07:44,708 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2025-03-08 18:07:44,709 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2025-03-08 18:07:44,709 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2025-03-08 18:07:44,709 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2025-03-08 18:07:44,709 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2025-03-08 18:07:44,709 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2025-03-08 18:07:44,709 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#6 [2025-03-08 18:07:44,709 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#7 [2025-03-08 18:07:44,709 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#8 [2025-03-08 18:07:44,709 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-03-08 18:07:44,709 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2025-03-08 18:07:44,709 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2025-03-08 18:07:44,709 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2025-03-08 18:07:44,709 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2025-03-08 18:07:44,709 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2025-03-08 18:07:44,709 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#6 [2025-03-08 18:07:44,709 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#7 [2025-03-08 18:07:44,709 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#8 [2025-03-08 18:07:44,709 INFO L130 BoogieDeclarations]: Found specification of procedure aws_is_power_of_two [2025-03-08 18:07:44,709 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_is_power_of_two [2025-03-08 18:07:45,024 INFO L256 CfgBuilder]: Building ICFG [2025-03-08 18:07:45,026 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2025-03-08 18:07:45,062 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L6935: havoc #t~malloc588.base, #t~malloc588.offset; [2025-03-08 18:07:45,095 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L2590: havoc #t~ret57#1; [2025-03-08 18:07:45,097 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L266: havoc #t~nondet9; [2025-03-08 18:07:45,162 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L263: havoc nondet_size_t_#t~nondet6#1; [2025-03-08 18:07:45,264 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L10069: call ULTIMATE.dealloc(~#elemsize~0.base, ~#elemsize~0.offset);havoc ~#elemsize~0.base, ~#elemsize~0.offset; [2025-03-08 18:07:45,326 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L9956: havoc #t~mem1489.base, #t~mem1489.offset;havoc #t~short1490;havoc #t~mem1491.base, #t~mem1491.offset;havoc #t~ret1492;havoc #t~short1493; [2025-03-08 18:07:45,383 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L2630: havoc #t~bitwise60;havoc #t~short61; [2025-03-08 18:07:45,400 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L2617: havoc #t~ret59#1; [2025-03-08 18:07:50,547 INFO L? ?]: Removed 117 outVars from TransFormulas that were not future-live. [2025-03-08 18:07:50,547 INFO L307 CfgBuilder]: Performing block encoding [2025-03-08 18:07:50,561 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-03-08 18:07:50,562 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2025-03-08 18:07:50,562 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.03 06:07:50 BoogieIcfgContainer [2025-03-08 18:07:50,562 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-03-08 18:07:50,564 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-03-08 18:07:50,564 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-03-08 18:07:50,567 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-03-08 18:07:50,567 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.03 06:07:41" (1/3) ... [2025-03-08 18:07:50,568 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@76e18ba2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.03 06:07:50, skipping insertion in model container [2025-03-08 18:07:50,568 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 06:07:44" (2/3) ... [2025-03-08 18:07:50,568 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@76e18ba2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.03 06:07:50, skipping insertion in model container [2025-03-08 18:07:50,568 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.03 06:07:50" (3/3) ... [2025-03-08 18:07:50,570 INFO L128 eAbstractionObserver]: Analyzing ICFG aws_hash_table_swap_harness_negated.i [2025-03-08 18:07:50,580 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-03-08 18:07:50,582 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG aws_hash_table_swap_harness_negated.i that has 17 procedures, 142 locations, 1 initial locations, 0 loop locations, and 1 error locations. [2025-03-08 18:07:50,632 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-03-08 18:07:50,641 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;@7348750c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-03-08 18:07:50,642 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2025-03-08 18:07:50,646 INFO L276 IsEmpty]: Start isEmpty. Operand has 142 states, 89 states have (on average 1.202247191011236) internal successors, (107), 94 states have internal predecessors, (107), 35 states have call successors, (35), 16 states have call predecessors, (35), 16 states have return successors, (35), 35 states have call predecessors, (35), 35 states have call successors, (35) [2025-03-08 18:07:50,651 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2025-03-08 18:07:50,651 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 18:07:50,652 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-08 18:07:50,652 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-08 18:07:50,656 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 18:07:50,657 INFO L85 PathProgramCache]: Analyzing trace with hash -1081493422, now seen corresponding path program 1 times [2025-03-08 18:07:50,663 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 18:07:50,664 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [32050311] [2025-03-08 18:07:50,664 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 18:07:50,664 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 18:07:55,304 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 25 statements into 1 equivalence classes. [2025-03-08 18:07:55,642 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 25 of 25 statements. [2025-03-08 18:07:55,642 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 18:07:55,642 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 18:07:56,154 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-08 18:07:56,155 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 18:07:56,155 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [32050311] [2025-03-08 18:07:56,156 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [32050311] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 18:07:56,156 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 18:07:56,157 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-08 18:07:56,158 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1791322550] [2025-03-08 18:07:56,158 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 18:07:56,162 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2025-03-08 18:07:56,162 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 18:07:56,174 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2025-03-08 18:07:56,175 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-03-08 18:07:56,177 INFO L87 Difference]: Start difference. First operand has 142 states, 89 states have (on average 1.202247191011236) internal successors, (107), 94 states have internal predecessors, (107), 35 states have call successors, (35), 16 states have call predecessors, (35), 16 states have return successors, (35), 35 states have call predecessors, (35), 35 states have call successors, (35) Second operand has 2 states, 2 states have (on average 10.0) internal successors, (20), 2 states have internal predecessors, (20), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2025-03-08 18:07:56,219 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 18:07:56,221 INFO L93 Difference]: Finished difference Result 280 states and 374 transitions. [2025-03-08 18:07:56,226 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-03-08 18:07:56,227 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 10.0) internal successors, (20), 2 states have internal predecessors, (20), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) Word has length 25 [2025-03-08 18:07:56,228 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 18:07:56,233 INFO L225 Difference]: With dead ends: 280 [2025-03-08 18:07:56,234 INFO L226 Difference]: Without dead ends: 137 [2025-03-08 18:07:56,239 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-03-08 18:07:56,243 INFO L435 NwaCegarLoop]: 173 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 173 SdHoareTripleChecker+Invalid, 1 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-03-08 18:07:56,245 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 173 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-08 18:07:56,254 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 137 states. [2025-03-08 18:07:56,277 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 137 to 137. [2025-03-08 18:07:56,280 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 137 states, 85 states have (on average 1.1647058823529413) internal successors, (99), 89 states have internal predecessors, (99), 35 states have call successors, (35), 16 states have call predecessors, (35), 16 states have return successors, (34), 34 states have call predecessors, (34), 34 states have call successors, (34) [2025-03-08 18:07:56,284 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 137 states to 137 states and 168 transitions. [2025-03-08 18:07:56,287 INFO L78 Accepts]: Start accepts. Automaton has 137 states and 168 transitions. Word has length 25 [2025-03-08 18:07:56,287 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 18:07:56,287 INFO L471 AbstractCegarLoop]: Abstraction has 137 states and 168 transitions. [2025-03-08 18:07:56,287 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 10.0) internal successors, (20), 2 states have internal predecessors, (20), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2025-03-08 18:07:56,287 INFO L276 IsEmpty]: Start isEmpty. Operand 137 states and 168 transitions. [2025-03-08 18:07:56,290 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2025-03-08 18:07:56,290 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 18:07:56,290 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-08 18:07:56,290 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-03-08 18:07:56,290 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-08 18:07:56,291 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 18:07:56,291 INFO L85 PathProgramCache]: Analyzing trace with hash -2078565775, now seen corresponding path program 1 times [2025-03-08 18:07:56,291 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 18:07:56,292 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [482847646] [2025-03-08 18:07:56,292 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 18:07:56,292 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 18:08:00,616 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 25 statements into 1 equivalence classes. [2025-03-08 18:08:00,807 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 25 of 25 statements. [2025-03-08 18:08:00,807 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 18:08:00,807 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 18:08:01,280 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-08 18:08:01,280 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 18:08:01,280 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [482847646] [2025-03-08 18:08:01,280 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [482847646] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 18:08:01,280 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 18:08:01,281 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-08 18:08:01,281 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1855806847] [2025-03-08 18:08:01,281 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 18:08:01,281 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-08 18:08:01,282 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 18:08:01,282 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-08 18:08:01,282 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-08 18:08:01,282 INFO L87 Difference]: Start difference. First operand 137 states and 168 transitions. Second operand has 3 states, 3 states have (on average 6.666666666666667) internal successors, (20), 3 states have internal predecessors, (20), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2025-03-08 18:08:01,385 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 18:08:01,385 INFO L93 Difference]: Finished difference Result 192 states and 238 transitions. [2025-03-08 18:08:01,386 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-08 18:08:01,386 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 6.666666666666667) internal successors, (20), 3 states have internal predecessors, (20), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 25 [2025-03-08 18:08:01,386 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 18:08:01,388 INFO L225 Difference]: With dead ends: 192 [2025-03-08 18:08:01,388 INFO L226 Difference]: Without dead ends: 148 [2025-03-08 18:08:01,388 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-08 18:08:01,389 INFO L435 NwaCegarLoop]: 166 mSDtfsCounter, 2 mSDsluCounter, 162 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 328 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-03-08 18:08:01,389 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 328 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-08 18:08:01,390 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 148 states. [2025-03-08 18:08:01,398 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 148 to 148. [2025-03-08 18:08:01,399 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 148 states, 91 states have (on average 1.164835164835165) internal successors, (106), 95 states have internal predecessors, (106), 40 states have call successors, (40), 16 states have call predecessors, (40), 16 states have return successors, (39), 39 states have call predecessors, (39), 39 states have call successors, (39) [2025-03-08 18:08:01,400 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 148 states to 148 states and 185 transitions. [2025-03-08 18:08:01,400 INFO L78 Accepts]: Start accepts. Automaton has 148 states and 185 transitions. Word has length 25 [2025-03-08 18:08:01,401 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 18:08:01,401 INFO L471 AbstractCegarLoop]: Abstraction has 148 states and 185 transitions. [2025-03-08 18:08:01,401 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.666666666666667) internal successors, (20), 3 states have internal predecessors, (20), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2025-03-08 18:08:01,402 INFO L276 IsEmpty]: Start isEmpty. Operand 148 states and 185 transitions. [2025-03-08 18:08:01,402 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2025-03-08 18:08:01,402 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 18:08:01,402 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-08 18:08:01,403 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-03-08 18:08:01,403 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-08 18:08:01,403 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 18:08:01,403 INFO L85 PathProgramCache]: Analyzing trace with hash -1629139524, now seen corresponding path program 1 times [2025-03-08 18:08:01,403 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 18:08:01,403 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1200968041] [2025-03-08 18:08:01,403 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 18:08:01,404 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 18:08:05,319 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 26 statements into 1 equivalence classes. [2025-03-08 18:08:05,420 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 26 of 26 statements. [2025-03-08 18:08:05,421 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 18:08:05,421 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 18:08:05,848 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-08 18:08:05,848 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 18:08:05,848 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1200968041] [2025-03-08 18:08:05,848 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1200968041] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 18:08:05,848 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 18:08:05,848 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-08 18:08:05,848 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2106612701] [2025-03-08 18:08:05,848 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 18:08:05,849 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-08 18:08:05,850 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 18:08:05,850 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-08 18:08:05,850 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-08 18:08:05,850 INFO L87 Difference]: Start difference. First operand 148 states and 185 transitions. Second operand has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2025-03-08 18:08:05,927 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 18:08:05,927 INFO L93 Difference]: Finished difference Result 202 states and 250 transitions. [2025-03-08 18:08:05,930 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-08 18:08:05,931 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 26 [2025-03-08 18:08:05,931 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 18:08:05,932 INFO L225 Difference]: With dead ends: 202 [2025-03-08 18:08:05,932 INFO L226 Difference]: Without dead ends: 157 [2025-03-08 18:08:05,932 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-08 18:08:05,933 INFO L435 NwaCegarLoop]: 167 mSDtfsCounter, 2 mSDsluCounter, 163 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 330 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-03-08 18:08:05,933 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 330 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-08 18:08:05,935 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 157 states. [2025-03-08 18:08:05,949 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 157 to 157. [2025-03-08 18:08:05,952 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 157 states, 96 states have (on average 1.1458333333333333) internal successors, (110), 99 states have internal predecessors, (110), 44 states have call successors, (44), 16 states have call predecessors, (44), 16 states have return successors, (42), 42 states have call predecessors, (42), 42 states have call successors, (42) [2025-03-08 18:08:05,953 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 157 states to 157 states and 196 transitions. [2025-03-08 18:08:05,954 INFO L78 Accepts]: Start accepts. Automaton has 157 states and 196 transitions. Word has length 26 [2025-03-08 18:08:05,955 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 18:08:05,955 INFO L471 AbstractCegarLoop]: Abstraction has 157 states and 196 transitions. [2025-03-08 18:08:05,955 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2025-03-08 18:08:05,955 INFO L276 IsEmpty]: Start isEmpty. Operand 157 states and 196 transitions. [2025-03-08 18:08:05,958 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2025-03-08 18:08:05,960 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 18:08:05,960 INFO L218 NwaCegarLoop]: trace histogram [7, 7, 7, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-08 18:08:05,961 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2025-03-08 18:08:05,961 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-08 18:08:05,961 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 18:08:05,962 INFO L85 PathProgramCache]: Analyzing trace with hash -934386176, now seen corresponding path program 1 times [2025-03-08 18:08:05,962 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 18:08:05,962 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1162080513] [2025-03-08 18:08:05,962 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 18:08:05,962 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 18:08:09,908 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 128 statements into 1 equivalence classes. [2025-03-08 18:08:10,020 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 128 of 128 statements. [2025-03-08 18:08:10,020 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 18:08:10,020 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 18:08:11,070 INFO L134 CoverageAnalysis]: Checked inductivity of 106 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 99 trivial. 0 not checked. [2025-03-08 18:08:11,070 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 18:08:11,070 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1162080513] [2025-03-08 18:08:11,070 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1162080513] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-08 18:08:11,070 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [917791202] [2025-03-08 18:08:11,070 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 18:08:11,070 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-08 18:08:11,070 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-08 18:08:11,074 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-08 18:08:11,075 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2025-03-08 18:08:15,414 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 128 statements into 1 equivalence classes. [2025-03-08 18:08:15,936 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 128 of 128 statements. [2025-03-08 18:08:15,936 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 18:08:15,936 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 18:08:15,959 INFO L256 TraceCheckSpWp]: Trace formula consists of 4483 conjuncts, 7 conjuncts are in the unsatisfiable core [2025-03-08 18:08:15,970 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-08 18:08:16,097 INFO L134 CoverageAnalysis]: Checked inductivity of 106 backedges. 54 proven. 0 refuted. 0 times theorem prover too weak. 52 trivial. 0 not checked. [2025-03-08 18:08:16,097 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-08 18:08:16,098 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [917791202] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 18:08:16,098 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-03-08 18:08:16,098 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 5 [2025-03-08 18:08:16,098 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [573225386] [2025-03-08 18:08:16,098 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 18:08:16,098 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-03-08 18:08:16,098 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 18:08:16,099 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-03-08 18:08:16,099 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-03-08 18:08:16,099 INFO L87 Difference]: Start difference. First operand 157 states and 196 transitions. Second operand has 5 states, 5 states have (on average 13.6) internal successors, (68), 5 states have internal predecessors, (68), 2 states have call successors, (19), 2 states have call predecessors, (19), 3 states have return successors, (19), 3 states have call predecessors, (19), 2 states have call successors, (19) [2025-03-08 18:08:16,307 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 18:08:16,307 INFO L93 Difference]: Finished difference Result 313 states and 397 transitions. [2025-03-08 18:08:16,311 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-03-08 18:08:16,311 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.6) internal successors, (68), 5 states have internal predecessors, (68), 2 states have call successors, (19), 2 states have call predecessors, (19), 3 states have return successors, (19), 3 states have call predecessors, (19), 2 states have call successors, (19) Word has length 128 [2025-03-08 18:08:16,311 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 18:08:16,313 INFO L225 Difference]: With dead ends: 313 [2025-03-08 18:08:16,313 INFO L226 Difference]: Without dead ends: 162 [2025-03-08 18:08:16,314 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 132 GetRequests, 129 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-03-08 18:08:16,314 INFO L435 NwaCegarLoop]: 164 mSDtfsCounter, 0 mSDsluCounter, 488 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 652 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2025-03-08 18:08:16,314 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 652 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2025-03-08 18:08:16,317 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 162 states. [2025-03-08 18:08:16,329 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 162 to 162. [2025-03-08 18:08:16,330 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 162 states, 100 states have (on average 1.14) internal successors, (114), 103 states have internal predecessors, (114), 44 states have call successors, (44), 16 states have call predecessors, (44), 17 states have return successors, (43), 43 states have call predecessors, (43), 42 states have call successors, (43) [2025-03-08 18:08:16,331 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 162 states to 162 states and 201 transitions. [2025-03-08 18:08:16,334 INFO L78 Accepts]: Start accepts. Automaton has 162 states and 201 transitions. Word has length 128 [2025-03-08 18:08:16,335 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 18:08:16,337 INFO L471 AbstractCegarLoop]: Abstraction has 162 states and 201 transitions. [2025-03-08 18:08:16,338 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.6) internal successors, (68), 5 states have internal predecessors, (68), 2 states have call successors, (19), 2 states have call predecessors, (19), 3 states have return successors, (19), 3 states have call predecessors, (19), 2 states have call successors, (19) [2025-03-08 18:08:16,338 INFO L276 IsEmpty]: Start isEmpty. Operand 162 states and 201 transitions. [2025-03-08 18:08:16,343 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2025-03-08 18:08:16,344 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 18:08:16,344 INFO L218 NwaCegarLoop]: trace histogram [7, 7, 7, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-08 18:08:16,364 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2025-03-08 18:08:16,545 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-08 18:08:16,545 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-08 18:08:16,546 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 18:08:16,546 INFO L85 PathProgramCache]: Analyzing trace with hash 246150362, now seen corresponding path program 1 times [2025-03-08 18:08:16,546 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 18:08:16,546 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [296004638] [2025-03-08 18:08:16,546 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 18:08:16,546 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 18:08:20,150 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 140 statements into 1 equivalence classes. [2025-03-08 18:08:20,260 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 140 of 140 statements. [2025-03-08 18:08:20,260 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 18:08:20,260 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 18:08:24,042 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 106 trivial. 0 not checked. [2025-03-08 18:08:24,043 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 18:08:24,043 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [296004638] [2025-03-08 18:08:24,043 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [296004638] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-08 18:08:24,043 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [233975538] [2025-03-08 18:08:24,043 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 18:08:24,043 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-08 18:08:24,043 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-08 18:08:24,045 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-08 18:08:24,047 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2025-03-08 18:08:28,260 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 140 statements into 1 equivalence classes. [2025-03-08 18:08:28,720 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 140 of 140 statements. [2025-03-08 18:08:28,720 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 18:08:28,720 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 18:08:28,739 INFO L256 TraceCheckSpWp]: Trace formula consists of 4491 conjuncts, 58 conjuncts are in the unsatisfiable core [2025-03-08 18:08:28,746 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-08 18:08:29,237 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2025-03-08 18:08:31,906 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 52 treesize of output 58 [2025-03-08 18:08:31,926 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 21 [2025-03-08 18:08:31,945 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 14 [2025-03-08 18:08:31,968 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 13 [2025-03-08 18:08:31,987 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 1 [2025-03-08 18:08:32,031 INFO L349 Elim1Store]: treesize reduction 35, result has 2.8 percent of original size [2025-03-08 18:08:32,031 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 42 treesize of output 23 [2025-03-08 18:08:33,905 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 75 proven. 0 refuted. 0 times theorem prover too weak. 37 trivial. 0 not checked. [2025-03-08 18:08:33,905 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-08 18:08:33,906 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [233975538] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 18:08:33,906 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-03-08 18:08:33,906 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [11] total 18 [2025-03-08 18:08:33,906 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1015017113] [2025-03-08 18:08:33,906 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 18:08:33,907 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2025-03-08 18:08:33,907 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 18:08:33,907 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2025-03-08 18:08:33,908 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=254, Unknown=0, NotChecked=0, Total=306 [2025-03-08 18:08:33,908 INFO L87 Difference]: Start difference. First operand 162 states and 201 transitions. Second operand has 14 states, 14 states have (on average 5.714285714285714) internal successors, (80), 13 states have internal predecessors, (80), 7 states have call successors, (23), 3 states have call predecessors, (23), 5 states have return successors, (22), 7 states have call predecessors, (22), 6 states have call successors, (22) [2025-03-08 18:08:42,847 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 18:08:42,848 INFO L93 Difference]: Finished difference Result 398 states and 492 transitions. [2025-03-08 18:08:42,848 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2025-03-08 18:08:42,848 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 5.714285714285714) internal successors, (80), 13 states have internal predecessors, (80), 7 states have call successors, (23), 3 states have call predecessors, (23), 5 states have return successors, (22), 7 states have call predecessors, (22), 6 states have call successors, (22) Word has length 140 [2025-03-08 18:08:42,849 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 18:08:42,857 INFO L225 Difference]: With dead ends: 398 [2025-03-08 18:08:42,857 INFO L226 Difference]: Without dead ends: 244 [2025-03-08 18:08:42,859 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 157 GetRequests, 126 SyntacticMatches, 8 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 101 ImplicationChecksByTransitivity, 5.1s TimeCoverageRelationStatistics Valid=98, Invalid=502, Unknown=0, NotChecked=0, Total=600 [2025-03-08 18:08:42,859 INFO L435 NwaCegarLoop]: 220 mSDtfsCounter, 107 mSDsluCounter, 1671 mSDsCounter, 0 mSdLazyCounter, 803 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 119 SdHoareTripleChecker+Valid, 1891 SdHoareTripleChecker+Invalid, 823 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 803 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.7s IncrementalHoareTripleChecker+Time [2025-03-08 18:08:42,859 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [119 Valid, 1891 Invalid, 823 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 803 Invalid, 0 Unknown, 0 Unchecked, 7.7s Time] [2025-03-08 18:08:42,860 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 244 states. [2025-03-08 18:08:42,875 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 244 to 240. [2025-03-08 18:08:42,875 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 240 states, 152 states have (on average 1.138157894736842) internal successors, (173), 156 states have internal predecessors, (173), 58 states have call successors, (58), 27 states have call predecessors, (58), 29 states have return successors, (60), 57 states have call predecessors, (60), 56 states have call successors, (60) [2025-03-08 18:08:42,877 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 240 states to 240 states and 291 transitions. [2025-03-08 18:08:42,877 INFO L78 Accepts]: Start accepts. Automaton has 240 states and 291 transitions. Word has length 140 [2025-03-08 18:08:42,878 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 18:08:42,878 INFO L471 AbstractCegarLoop]: Abstraction has 240 states and 291 transitions. [2025-03-08 18:08:42,878 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 5.714285714285714) internal successors, (80), 13 states have internal predecessors, (80), 7 states have call successors, (23), 3 states have call predecessors, (23), 5 states have return successors, (22), 7 states have call predecessors, (22), 6 states have call successors, (22) [2025-03-08 18:08:42,878 INFO L276 IsEmpty]: Start isEmpty. Operand 240 states and 291 transitions. [2025-03-08 18:08:42,880 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2025-03-08 18:08:42,880 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 18:08:42,880 INFO L218 NwaCegarLoop]: trace histogram [7, 7, 7, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-08 18:08:42,901 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2025-03-08 18:08:43,080 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-08 18:08:43,081 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-08 18:08:43,081 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 18:08:43,081 INFO L85 PathProgramCache]: Analyzing trace with hash -339262463, now seen corresponding path program 1 times [2025-03-08 18:08:43,082 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 18:08:43,082 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1156581066] [2025-03-08 18:08:43,082 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 18:08:43,082 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 18:08:46,767 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 141 statements into 1 equivalence classes. [2025-03-08 18:08:46,852 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 141 of 141 statements. [2025-03-08 18:08:46,852 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 18:08:46,852 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 18:08:47,810 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 106 trivial. 0 not checked. [2025-03-08 18:08:47,810 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 18:08:47,810 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1156581066] [2025-03-08 18:08:47,810 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1156581066] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-08 18:08:47,810 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [12054876] [2025-03-08 18:08:47,810 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 18:08:47,810 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-08 18:08:47,811 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-08 18:08:47,812 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-08 18:08:47,815 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2025-03-08 18:08:52,148 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 141 statements into 1 equivalence classes. [2025-03-08 18:08:52,537 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 141 of 141 statements. [2025-03-08 18:08:52,537 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 18:08:52,537 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 18:08:52,557 INFO L256 TraceCheckSpWp]: Trace formula consists of 4488 conjuncts, 6 conjuncts are in the unsatisfiable core [2025-03-08 18:08:52,562 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-08 18:08:53,144 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 76 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2025-03-08 18:08:53,144 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-08 18:08:53,145 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [12054876] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 18:08:53,145 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-03-08 18:08:53,145 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [5] total 9 [2025-03-08 18:08:53,145 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [948019104] [2025-03-08 18:08:53,145 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 18:08:53,145 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-08 18:08:53,145 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 18:08:53,145 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-08 18:08:53,145 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2025-03-08 18:08:53,146 INFO L87 Difference]: Start difference. First operand 240 states and 291 transitions. Second operand has 6 states, 6 states have (on average 13.5) internal successors, (81), 6 states have internal predecessors, (81), 3 states have call successors, (23), 2 states have call predecessors, (23), 3 states have return successors, (22), 3 states have call predecessors, (22), 3 states have call successors, (22) [2025-03-08 18:08:54,163 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 18:08:54,163 INFO L93 Difference]: Finished difference Result 369 states and 450 transitions. [2025-03-08 18:08:54,164 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-08 18:08:54,164 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 13.5) internal successors, (81), 6 states have internal predecessors, (81), 3 states have call successors, (23), 2 states have call predecessors, (23), 3 states have return successors, (22), 3 states have call predecessors, (22), 3 states have call successors, (22) Word has length 141 [2025-03-08 18:08:54,164 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 18:08:54,166 INFO L225 Difference]: With dead ends: 369 [2025-03-08 18:08:54,166 INFO L226 Difference]: Without dead ends: 245 [2025-03-08 18:08:54,166 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 148 GetRequests, 138 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=36, Invalid=96, Unknown=0, NotChecked=0, Total=132 [2025-03-08 18:08:54,167 INFO L435 NwaCegarLoop]: 149 mSDtfsCounter, 168 mSDsluCounter, 415 mSDsCounter, 0 mSdLazyCounter, 93 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 168 SdHoareTripleChecker+Valid, 564 SdHoareTripleChecker+Invalid, 125 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 93 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2025-03-08 18:08:54,167 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [168 Valid, 564 Invalid, 125 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 93 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2025-03-08 18:08:54,167 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 245 states. [2025-03-08 18:08:54,177 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 245 to 245. [2025-03-08 18:08:54,178 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 245 states, 155 states have (on average 1.135483870967742) internal successors, (176), 160 states have internal predecessors, (176), 59 states have call successors, (59), 27 states have call predecessors, (59), 30 states have return successors, (63), 58 states have call predecessors, (63), 57 states have call successors, (63) [2025-03-08 18:08:54,179 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 245 states to 245 states and 298 transitions. [2025-03-08 18:08:54,179 INFO L78 Accepts]: Start accepts. Automaton has 245 states and 298 transitions. Word has length 141 [2025-03-08 18:08:54,181 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 18:08:54,181 INFO L471 AbstractCegarLoop]: Abstraction has 245 states and 298 transitions. [2025-03-08 18:08:54,181 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 13.5) internal successors, (81), 6 states have internal predecessors, (81), 3 states have call successors, (23), 2 states have call predecessors, (23), 3 states have return successors, (22), 3 states have call predecessors, (22), 3 states have call successors, (22) [2025-03-08 18:08:54,181 INFO L276 IsEmpty]: Start isEmpty. Operand 245 states and 298 transitions. [2025-03-08 18:08:54,182 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2025-03-08 18:08:54,184 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 18:08:54,184 INFO L218 NwaCegarLoop]: trace histogram [7, 7, 7, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-08 18:08:54,201 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2025-03-08 18:08:54,384 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-08 18:08:54,385 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-08 18:08:54,385 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 18:08:54,385 INFO L85 PathProgramCache]: Analyzing trace with hash -2135353903, now seen corresponding path program 1 times [2025-03-08 18:08:54,385 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 18:08:54,385 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [117894960] [2025-03-08 18:08:54,385 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 18:08:54,385 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 18:08:58,098 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 147 statements into 1 equivalence classes. [2025-03-08 18:08:58,181 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 147 of 147 statements. [2025-03-08 18:08:58,181 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 18:08:58,182 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 18:08:59,961 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 107 trivial. 0 not checked. [2025-03-08 18:08:59,961 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 18:08:59,961 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [117894960] [2025-03-08 18:08:59,961 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [117894960] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-08 18:08:59,961 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1569580474] [2025-03-08 18:08:59,961 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 18:08:59,961 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-08 18:08:59,962 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-08 18:08:59,963 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-08 18:08:59,964 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2025-03-08 18:09:04,380 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 147 statements into 1 equivalence classes. [2025-03-08 18:09:04,782 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 147 of 147 statements. [2025-03-08 18:09:04,782 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 18:09:04,782 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 18:09:04,804 INFO L256 TraceCheckSpWp]: Trace formula consists of 4517 conjuncts, 36 conjuncts are in the unsatisfiable core [2025-03-08 18:09:04,810 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-08 18:09:04,832 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 8 [2025-03-08 18:09:06,402 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 80 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2025-03-08 18:09:06,402 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-08 18:09:06,402 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1569580474] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 18:09:06,402 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-03-08 18:09:06,402 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [7] total 15 [2025-03-08 18:09:06,402 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [149952767] [2025-03-08 18:09:06,402 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 18:09:06,403 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2025-03-08 18:09:06,403 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 18:09:06,403 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2025-03-08 18:09:06,403 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=181, Unknown=0, NotChecked=0, Total=210 [2025-03-08 18:09:06,403 INFO L87 Difference]: Start difference. First operand 245 states and 298 transitions. Second operand has 10 states, 9 states have (on average 9.777777777777779) internal successors, (88), 8 states have internal predecessors, (88), 4 states have call successors, (24), 2 states have call predecessors, (24), 5 states have return successors, (23), 5 states have call predecessors, (23), 4 states have call successors, (23) [2025-03-08 18:09:07,763 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 18:09:07,764 INFO L93 Difference]: Finished difference Result 381 states and 465 transitions. [2025-03-08 18:09:07,764 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2025-03-08 18:09:07,764 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 9.777777777777779) internal successors, (88), 8 states have internal predecessors, (88), 4 states have call successors, (24), 2 states have call predecessors, (24), 5 states have return successors, (23), 5 states have call predecessors, (23), 4 states have call successors, (23) Word has length 147 [2025-03-08 18:09:07,766 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 18:09:07,768 INFO L225 Difference]: With dead ends: 381 [2025-03-08 18:09:07,768 INFO L226 Difference]: Without dead ends: 255 [2025-03-08 18:09:07,769 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 153 GetRequests, 140 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=29, Invalid=181, Unknown=0, NotChecked=0, Total=210 [2025-03-08 18:09:07,769 INFO L435 NwaCegarLoop]: 154 mSDtfsCounter, 12 mSDsluCounter, 1168 mSDsCounter, 0 mSdLazyCounter, 156 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 28 SdHoareTripleChecker+Valid, 1322 SdHoareTripleChecker+Invalid, 157 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 156 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2025-03-08 18:09:07,769 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [28 Valid, 1322 Invalid, 157 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 156 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2025-03-08 18:09:07,770 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 255 states. [2025-03-08 18:09:07,787 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 255 to 251. [2025-03-08 18:09:07,787 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 251 states, 159 states have (on average 1.1320754716981132) internal successors, (180), 165 states have internal predecessors, (180), 59 states have call successors, (59), 27 states have call predecessors, (59), 32 states have return successors, (69), 59 states have call predecessors, (69), 57 states have call successors, (69) [2025-03-08 18:09:07,790 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 251 states to 251 states and 308 transitions. [2025-03-08 18:09:07,791 INFO L78 Accepts]: Start accepts. Automaton has 251 states and 308 transitions. Word has length 147 [2025-03-08 18:09:07,792 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 18:09:07,792 INFO L471 AbstractCegarLoop]: Abstraction has 251 states and 308 transitions. [2025-03-08 18:09:07,792 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 9.777777777777779) internal successors, (88), 8 states have internal predecessors, (88), 4 states have call successors, (24), 2 states have call predecessors, (24), 5 states have return successors, (23), 5 states have call predecessors, (23), 4 states have call successors, (23) [2025-03-08 18:09:07,792 INFO L276 IsEmpty]: Start isEmpty. Operand 251 states and 308 transitions. [2025-03-08 18:09:07,793 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2025-03-08 18:09:07,795 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 18:09:07,795 INFO L218 NwaCegarLoop]: trace histogram [7, 7, 7, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-08 18:09:07,815 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2025-03-08 18:09:07,995 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-08 18:09:07,996 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-08 18:09:07,996 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 18:09:07,996 INFO L85 PathProgramCache]: Analyzing trace with hash 979526452, now seen corresponding path program 1 times [2025-03-08 18:09:07,996 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 18:09:07,996 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2109388422] [2025-03-08 18:09:07,996 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 18:09:07,996 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms