./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/aws-c-common/aws_hash_table_clear_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_clear_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 dd5e0a204807afb29e9a73f02b18d8e64fc0751466c350fae08f7d9700c18247 --- Real Ultimate output --- This is Ultimate 0.3.0-?-e2fb8be-m [2025-03-08 18:05:21,964 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-03-08 18:05:22,025 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2025-03-08 18:05:22,029 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-03-08 18:05:22,029 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-03-08 18:05:22,050 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-03-08 18:05:22,053 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-03-08 18:05:22,053 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-03-08 18:05:22,053 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-03-08 18:05:22,054 INFO L153 SettingsManager]: * Use memory slicer=true [2025-03-08 18:05:22,054 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-03-08 18:05:22,054 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-03-08 18:05:22,055 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-03-08 18:05:22,055 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-03-08 18:05:22,055 INFO L153 SettingsManager]: * Use SBE=true [2025-03-08 18:05:22,055 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-03-08 18:05:22,056 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-03-08 18:05:22,056 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-03-08 18:05:22,056 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-03-08 18:05:22,056 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-03-08 18:05:22,056 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-03-08 18:05:22,056 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-03-08 18:05:22,056 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-03-08 18:05:22,056 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-03-08 18:05:22,056 INFO L153 SettingsManager]: * Use constant arrays=true [2025-03-08 18:05:22,056 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-03-08 18:05:22,056 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-03-08 18:05:22,056 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-03-08 18:05:22,057 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-03-08 18:05:22,057 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-08 18:05:22,057 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-03-08 18:05:22,057 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-03-08 18:05:22,057 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-03-08 18:05:22,057 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-03-08 18:05:22,057 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-03-08 18:05:22,057 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-03-08 18:05:22,057 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-03-08 18:05:22,058 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-03-08 18:05:22,058 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-03-08 18:05:22,058 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-03-08 18:05:22,058 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 -> dd5e0a204807afb29e9a73f02b18d8e64fc0751466c350fae08f7d9700c18247 [2025-03-08 18:05:22,346 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-03-08 18:05:22,357 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-03-08 18:05:22,359 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-03-08 18:05:22,360 INFO L270 PluginConnector]: Initializing CDTParser... [2025-03-08 18:05:22,361 INFO L274 PluginConnector]: CDTParser initialized [2025-03-08 18:05:22,362 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/aws-c-common/aws_hash_table_clear_harness_negated.i [2025-03-08 18:05:23,671 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2fe57929e/c12df9dd1c734bf2928eda180c02c5d7/FLAG2138888c4 [2025-03-08 18:05:24,218 INFO L384 CDTParser]: Found 1 translation units. [2025-03-08 18:05:24,220 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_hash_table_clear_harness_negated.i [2025-03-08 18:05:24,261 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2fe57929e/c12df9dd1c734bf2928eda180c02c5d7/FLAG2138888c4 [2025-03-08 18:05:24,278 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2fe57929e/c12df9dd1c734bf2928eda180c02c5d7 [2025-03-08 18:05:24,280 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-03-08 18:05:24,281 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-03-08 18:05:24,282 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-03-08 18:05:24,282 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-03-08 18:05:24,289 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-03-08 18:05:24,290 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.03 06:05:24" (1/1) ... [2025-03-08 18:05:24,291 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6340505d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 06:05:24, skipping insertion in model container [2025-03-08 18:05:24,291 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.03 06:05:24" (1/1) ... [2025-03-08 18:05:24,401 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-03-08 18:05:24,693 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_clear_harness_negated.i[4494,4507] [2025-03-08 18:05:24,701 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_clear_harness_negated.i[4554,4567] [2025-03-08 18:05:25,654 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 18:05:25,655 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 18:05:25,655 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 18:05:25,656 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 18:05:25,657 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 18:05:25,667 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 18:05:25,667 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 18:05:25,671 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 18:05:25,673 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 18:05:25,675 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 18:05:25,676 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 18:05:25,676 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 18:05:25,677 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 18:05:26,670 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 18:05:26,671 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 18:05:26,703 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 18:05:26,704 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 18:05:26,713 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 18:05:26,713 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 18:05:26,731 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 18:05:26,732 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 18:05:26,732 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 18:05:26,732 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 18:05:26,733 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 18:05:26,733 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 18:05:26,733 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 18:05:26,770 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_clear_harness_negated.i[228400,228413] [2025-03-08 18:05:26,771 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-08 18:05:26,796 INFO L200 MainTranslator]: Completed pre-run [2025-03-08 18:05:26,807 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_clear_harness_negated.i[4494,4507] [2025-03-08 18:05:26,808 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_clear_harness_negated.i[4554,4567] [2025-03-08 18:05:26,842 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 18:05:26,843 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 18:05:26,843 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 18:05:26,843 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 18:05:26,844 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 18:05:26,849 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 18:05:26,850 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 18:05:26,850 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 18:05:26,851 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 18:05:26,852 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 18:05:26,852 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 18:05:26,852 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 18:05:26,853 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 18:05:26,972 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" : : "r"(pBuf) : "memory"); [7553-7564] [2025-03-08 18:05:27,032 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 18:05:27,032 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 18:05:27,038 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 18:05:27,038 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 18:05:27,040 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 18:05:27,041 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 18:05:27,046 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 18:05:27,047 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 18:05:27,048 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 18:05:27,048 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 18:05:27,048 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 18:05:27,048 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 18:05:27,049 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 18:05:27,063 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_clear_harness_negated.i[228400,228413] [2025-03-08 18:05:27,064 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-08 18:05:27,254 INFO L204 MainTranslator]: Completed translation [2025-03-08 18:05:27,254 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 06:05:27 WrapperNode [2025-03-08 18:05:27,255 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-03-08 18:05:27,256 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-03-08 18:05:27,256 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-03-08 18:05:27,256 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-03-08 18:05:27,262 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 06:05:27" (1/1) ... [2025-03-08 18:05:27,341 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 06:05:27" (1/1) ... [2025-03-08 18:05:27,393 INFO L138 Inliner]: procedures = 764, calls = 2435, calls flagged for inlining = 69, calls inlined = 13, statements flattened = 613 [2025-03-08 18:05:27,396 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-03-08 18:05:27,397 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-03-08 18:05:27,397 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-03-08 18:05:27,397 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-03-08 18:05:27,405 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 06:05:27" (1/1) ... [2025-03-08 18:05:27,405 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 06:05:27" (1/1) ... [2025-03-08 18:05:27,411 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 06:05:27" (1/1) ... [2025-03-08 18:05:27,475 INFO L175 MemorySlicer]: Split 292 memory accesses to 8 slices as follows [8, 238, 2, 2, 34, 1, 2, 5]. 82 percent of accesses are in the largest equivalence class. The 13 initializations are split as follows [0, 6, 2, 0, 0, 0, 0, 5]. The 241 writes are split as follows [1, 232, 0, 1, 5, 1, 1, 0]. [2025-03-08 18:05:27,480 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 06:05:27" (1/1) ... [2025-03-08 18:05:27,480 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 06:05:27" (1/1) ... [2025-03-08 18:05:27,504 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 06:05:27" (1/1) ... [2025-03-08 18:05:27,510 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 06:05:27" (1/1) ... [2025-03-08 18:05:27,518 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 06:05:27" (1/1) ... [2025-03-08 18:05:27,523 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 06:05:27" (1/1) ... [2025-03-08 18:05:27,540 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-03-08 18:05:27,542 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-03-08 18:05:27,542 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-03-08 18:05:27,542 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-03-08 18:05:27,543 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 06:05:27" (1/1) ... [2025-03-08 18:05:27,547 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-08 18:05:27,558 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-08 18:05:27,571 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 18:05:27,574 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 18:05:27,593 INFO L130 BoogieDeclarations]: Found specification of procedure memset_override_0_impl [2025-03-08 18:05:27,593 INFO L138 BoogieDeclarations]: Found implementation of procedure memset_override_0_impl [2025-03-08 18:05:27,593 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#0 [2025-03-08 18:05:27,593 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#1 [2025-03-08 18:05:27,593 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#2 [2025-03-08 18:05:27,593 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#3 [2025-03-08 18:05:27,594 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#4 [2025-03-08 18:05:27,594 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#5 [2025-03-08 18:05:27,594 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#6 [2025-03-08 18:05:27,594 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#7 [2025-03-08 18:05:27,594 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2025-03-08 18:05:27,594 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_bool [2025-03-08 18:05:27,594 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_bool [2025-03-08 18:05:27,594 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#0 [2025-03-08 18:05:27,595 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#1 [2025-03-08 18:05:27,595 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#2 [2025-03-08 18:05:27,595 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#3 [2025-03-08 18:05:27,595 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#4 [2025-03-08 18:05:27,595 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#5 [2025-03-08 18:05:27,595 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#6 [2025-03-08 18:05:27,595 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#7 [2025-03-08 18:05:27,595 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2025-03-08 18:05:27,595 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2025-03-08 18:05:27,596 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2025-03-08 18:05:27,596 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2025-03-08 18:05:27,596 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2025-03-08 18:05:27,596 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2025-03-08 18:05:27,596 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#6 [2025-03-08 18:05:27,596 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#7 [2025-03-08 18:05:27,596 INFO L130 BoogieDeclarations]: Found specification of procedure aws_raise_error [2025-03-08 18:05:27,596 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_raise_error [2025-03-08 18:05:27,596 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2025-03-08 18:05:27,596 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2025-03-08 18:05:27,596 INFO L130 BoogieDeclarations]: Found specification of procedure hash_table_state_is_valid [2025-03-08 18:05:27,596 INFO L138 BoogieDeclarations]: Found implementation of procedure hash_table_state_is_valid [2025-03-08 18:05:27,596 INFO L130 BoogieDeclarations]: Found specification of procedure aws_hash_table_clear [2025-03-08 18:05:27,597 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_hash_table_clear [2025-03-08 18:05:27,597 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2025-03-08 18:05:27,597 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-03-08 18:05:27,597 INFO L130 BoogieDeclarations]: Found specification of procedure hash_table_state_required_bytes [2025-03-08 18:05:27,597 INFO L138 BoogieDeclarations]: Found implementation of procedure hash_table_state_required_bytes [2025-03-08 18:05:27,597 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2025-03-08 18:05:27,597 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2025-03-08 18:05:27,597 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2025-03-08 18:05:27,597 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2025-03-08 18:05:27,597 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#4 [2025-03-08 18:05:27,597 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#5 [2025-03-08 18:05:27,597 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#6 [2025-03-08 18:05:27,597 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#7 [2025-03-08 18:05:27,597 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2025-03-08 18:05:27,597 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2025-03-08 18:05:27,597 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-03-08 18:05:27,597 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-03-08 18:05:27,598 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2025-03-08 18:05:27,598 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2025-03-08 18:05:27,598 INFO L130 BoogieDeclarations]: Found specification of procedure aws_mul_size_checked [2025-03-08 18:05:27,598 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_mul_size_checked [2025-03-08 18:05:27,598 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#0 [2025-03-08 18:05:27,598 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#1 [2025-03-08 18:05:27,598 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#2 [2025-03-08 18:05:27,598 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#3 [2025-03-08 18:05:27,598 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#4 [2025-03-08 18:05:27,598 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#5 [2025-03-08 18:05:27,598 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#6 [2025-03-08 18:05:27,598 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#7 [2025-03-08 18:05:27,598 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2025-03-08 18:05:27,598 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2025-03-08 18:05:27,598 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2025-03-08 18:05:27,598 INFO L130 BoogieDeclarations]: Found specification of procedure __CPROVER_overflow_plus [2025-03-08 18:05:27,598 INFO L138 BoogieDeclarations]: Found implementation of procedure __CPROVER_overflow_plus [2025-03-08 18:05:27,598 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2025-03-08 18:05:27,598 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2025-03-08 18:05:27,598 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2025-03-08 18:05:27,598 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2025-03-08 18:05:27,598 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#4 [2025-03-08 18:05:27,598 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#5 [2025-03-08 18:05:27,598 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#6 [2025-03-08 18:05:27,598 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#7 [2025-03-08 18:05:27,598 INFO L130 BoogieDeclarations]: Found specification of procedure aws_hash_table_is_valid [2025-03-08 18:05:27,598 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_hash_table_is_valid [2025-03-08 18:05:27,598 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#0 [2025-03-08 18:05:27,598 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#1 [2025-03-08 18:05:27,598 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#2 [2025-03-08 18:05:27,598 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#3 [2025-03-08 18:05:27,598 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#4 [2025-03-08 18:05:27,598 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#5 [2025-03-08 18:05:27,598 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#6 [2025-03-08 18:05:27,598 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#7 [2025-03-08 18:05:27,598 INFO L130 BoogieDeclarations]: Found specification of procedure __CPROVER_overflow_mult [2025-03-08 18:05:27,598 INFO L138 BoogieDeclarations]: Found implementation of procedure __CPROVER_overflow_mult [2025-03-08 18:05:27,598 INFO L130 BoogieDeclarations]: Found specification of procedure aws_add_size_checked [2025-03-08 18:05:27,599 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_add_size_checked [2025-03-08 18:05:27,599 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_uint64_t [2025-03-08 18:05:27,599 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_uint64_t [2025-03-08 18:05:27,599 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2025-03-08 18:05:27,599 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2025-03-08 18:05:27,599 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2025-03-08 18:05:27,599 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2025-03-08 18:05:27,599 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2025-03-08 18:05:27,599 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2025-03-08 18:05:27,599 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#6 [2025-03-08 18:05:27,599 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#7 [2025-03-08 18:05:27,599 INFO L130 BoogieDeclarations]: Found specification of procedure my_memset [2025-03-08 18:05:27,599 INFO L138 BoogieDeclarations]: Found implementation of procedure my_memset [2025-03-08 18:05:27,599 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-03-08 18:05:27,599 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2025-03-08 18:05:27,599 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2025-03-08 18:05:27,599 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2025-03-08 18:05:27,599 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2025-03-08 18:05:27,599 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2025-03-08 18:05:27,599 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#6 [2025-03-08 18:05:27,599 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#7 [2025-03-08 18:05:27,599 INFO L130 BoogieDeclarations]: Found specification of procedure aws_is_power_of_two [2025-03-08 18:05:27,599 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_is_power_of_two [2025-03-08 18:05:27,935 INFO L256 CfgBuilder]: Building ICFG [2025-03-08 18:05:27,937 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2025-03-08 18:05:27,978 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L6935: havoc #t~malloc588.base, #t~malloc588.offset; [2025-03-08 18:05:28,016 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L10096: call ULTIMATE.dealloc(~#elemsize~0.base, ~#elemsize~0.offset);havoc ~#elemsize~0.base, ~#elemsize~0.offset; [2025-03-08 18:05:28,087 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L2590: havoc #t~ret57#1; [2025-03-08 18:05:28,089 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L266: havoc #t~nondet9; [2025-03-08 18:05:28,097 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L7383: havoc #t~ret691.base, #t~ret691.offset; [2025-03-08 18:05:28,116 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L9983: havoc #t~mem1492.base, #t~mem1492.offset;havoc #t~short1493;havoc #t~mem1494.base, #t~mem1494.offset;havoc #t~ret1495;havoc #t~short1496; [2025-03-08 18:05:28,121 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L261: havoc #t~nondet4; [2025-03-08 18:05:28,223 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L2630: havoc #t~bitwise60;havoc #t~short61; [2025-03-08 18:05:28,240 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L2617: havoc #t~ret59#1; [2025-03-08 18:05:33,363 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L6821: havoc aws_hash_table_has_an_empty_slot_#t~mem566#1.base, aws_hash_table_has_an_empty_slot_#t~mem566#1.offset;havoc aws_hash_table_has_an_empty_slot_#t~ret567#1; [2025-03-08 18:05:33,364 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L6831: havoc hash_table_state_has_an_empty_slot_#t~mem571#1; [2025-03-08 18:05:33,437 INFO L? ?]: Removed 147 outVars from TransFormulas that were not future-live. [2025-03-08 18:05:33,437 INFO L307 CfgBuilder]: Performing block encoding [2025-03-08 18:05:33,456 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-03-08 18:05:33,456 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2025-03-08 18:05:33,456 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.03 06:05:33 BoogieIcfgContainer [2025-03-08 18:05:33,457 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-03-08 18:05:33,459 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-03-08 18:05:33,459 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-03-08 18:05:33,462 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-03-08 18:05:33,463 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.03 06:05:24" (1/3) ... [2025-03-08 18:05:33,463 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@50fa7181 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.03 06:05:33, skipping insertion in model container [2025-03-08 18:05:33,463 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 06:05:27" (2/3) ... [2025-03-08 18:05:33,464 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@50fa7181 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.03 06:05:33, skipping insertion in model container [2025-03-08 18:05:33,464 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.03 06:05:33" (3/3) ... [2025-03-08 18:05:33,465 INFO L128 eAbstractionObserver]: Analyzing ICFG aws_hash_table_clear_harness_negated.i [2025-03-08 18:05:33,476 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-03-08 18:05:33,478 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG aws_hash_table_clear_harness_negated.i that has 19 procedures, 175 locations, 1 initial locations, 2 loop locations, and 1 error locations. [2025-03-08 18:05:33,528 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-03-08 18:05:33,539 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;@5c3d01dd, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-03-08 18:05:33,540 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2025-03-08 18:05:33,544 INFO L276 IsEmpty]: Start isEmpty. Operand has 175 states, 114 states have (on average 1.1929824561403508) internal successors, (136), 115 states have internal predecessors, (136), 41 states have call successors, (41), 18 states have call predecessors, (41), 18 states have return successors, (41), 41 states have call predecessors, (41), 41 states have call successors, (41) [2025-03-08 18:05:33,552 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2025-03-08 18:05:33,553 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 18:05:33,553 INFO L218 NwaCegarLoop]: trace histogram [10, 10, 10, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-08 18:05:33,554 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-08 18:05:33,557 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 18:05:33,557 INFO L85 PathProgramCache]: Analyzing trace with hash 1591266050, now seen corresponding path program 1 times [2025-03-08 18:05:33,563 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 18:05:33,563 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1601587656] [2025-03-08 18:05:33,563 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 18:05:33,564 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 18:05:37,848 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 141 statements into 1 equivalence classes. [2025-03-08 18:05:38,126 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 141 of 141 statements. [2025-03-08 18:05:38,126 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 18:05:38,126 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 18:05:38,582 INFO L134 CoverageAnalysis]: Checked inductivity of 193 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 175 trivial. 0 not checked. [2025-03-08 18:05:38,584 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 18:05:38,584 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1601587656] [2025-03-08 18:05:38,584 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1601587656] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-08 18:05:38,584 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [669240309] [2025-03-08 18:05:38,584 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 18:05:38,585 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-08 18:05:38,585 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-08 18:05:38,587 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 18:05:38,589 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 18:05:43,029 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 141 statements into 1 equivalence classes. [2025-03-08 18:05:43,546 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 141 of 141 statements. [2025-03-08 18:05:43,547 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 18:05:43,547 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 18:05:43,575 INFO L256 TraceCheckSpWp]: Trace formula consists of 4363 conjuncts, 1 conjuncts are in the unsatisfiable core [2025-03-08 18:05:43,586 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-08 18:05:43,604 INFO L134 CoverageAnalysis]: Checked inductivity of 193 backedges. 21 proven. 0 refuted. 0 times theorem prover too weak. 172 trivial. 0 not checked. [2025-03-08 18:05:43,605 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-08 18:05:43,606 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [669240309] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 18:05:43,606 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-03-08 18:05:43,607 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2 [2025-03-08 18:05:43,608 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [981893144] [2025-03-08 18:05:43,609 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 18:05:43,612 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2025-03-08 18:05:43,612 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 18:05:43,630 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2025-03-08 18:05:43,631 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-03-08 18:05:43,633 INFO L87 Difference]: Start difference. First operand has 175 states, 114 states have (on average 1.1929824561403508) internal successors, (136), 115 states have internal predecessors, (136), 41 states have call successors, (41), 18 states have call predecessors, (41), 18 states have return successors, (41), 41 states have call predecessors, (41), 41 states have call successors, (41) Second operand has 2 states, 2 states have (on average 31.0) internal successors, (62), 2 states have internal predecessors, (62), 2 states have call successors, (25), 2 states have call predecessors, (25), 2 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2025-03-08 18:05:43,687 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 18:05:43,687 INFO L93 Difference]: Finished difference Result 345 states and 456 transitions. [2025-03-08 18:05:43,690 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-03-08 18:05:43,691 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 31.0) internal successors, (62), 2 states have internal predecessors, (62), 2 states have call successors, (25), 2 states have call predecessors, (25), 2 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) Word has length 141 [2025-03-08 18:05:43,691 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 18:05:43,699 INFO L225 Difference]: With dead ends: 345 [2025-03-08 18:05:43,699 INFO L226 Difference]: Without dead ends: 168 [2025-03-08 18:05:43,702 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 142 GetRequests, 142 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-03-08 18:05:43,705 INFO L435 NwaCegarLoop]: 213 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, 213 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 18:05:43,708 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 213 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-08 18:05:43,726 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 168 states. [2025-03-08 18:05:43,744 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 168 to 168. [2025-03-08 18:05:43,745 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 168 states, 108 states have (on average 1.1574074074074074) internal successors, (125), 109 states have internal predecessors, (125), 41 states have call successors, (41), 18 states have call predecessors, (41), 18 states have return successors, (40), 40 states have call predecessors, (40), 40 states have call successors, (40) [2025-03-08 18:05:43,749 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 168 states to 168 states and 206 transitions. [2025-03-08 18:05:43,751 INFO L78 Accepts]: Start accepts. Automaton has 168 states and 206 transitions. Word has length 141 [2025-03-08 18:05:43,752 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 18:05:43,752 INFO L471 AbstractCegarLoop]: Abstraction has 168 states and 206 transitions. [2025-03-08 18:05:43,752 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 31.0) internal successors, (62), 2 states have internal predecessors, (62), 2 states have call successors, (25), 2 states have call predecessors, (25), 2 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2025-03-08 18:05:43,752 INFO L276 IsEmpty]: Start isEmpty. Operand 168 states and 206 transitions. [2025-03-08 18:05:43,755 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2025-03-08 18:05:43,756 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 18:05:43,756 INFO L218 NwaCegarLoop]: trace histogram [10, 10, 10, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-08 18:05:43,778 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 18:05:43,957 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2025-03-08 18:05:43,957 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-08 18:05:43,961 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 18:05:43,961 INFO L85 PathProgramCache]: Analyzing trace with hash -193809122, now seen corresponding path program 1 times [2025-03-08 18:05:43,962 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 18:05:43,962 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1689009696] [2025-03-08 18:05:43,962 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 18:05:43,962 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 18:05:48,032 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 141 statements into 1 equivalence classes. [2025-03-08 18:05:48,195 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 141 of 141 statements. [2025-03-08 18:05:48,195 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 18:05:48,195 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 18:05:49,454 INFO L134 CoverageAnalysis]: Checked inductivity of 193 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 193 trivial. 0 not checked. [2025-03-08 18:05:49,455 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 18:05:49,455 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1689009696] [2025-03-08 18:05:49,455 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1689009696] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 18:05:49,456 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 18:05:49,456 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-03-08 18:05:49,456 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [223084741] [2025-03-08 18:05:49,456 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 18:05:49,459 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-03-08 18:05:49,460 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 18:05:49,461 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-03-08 18:05:49,461 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-03-08 18:05:49,461 INFO L87 Difference]: Start difference. First operand 168 states and 206 transitions. Second operand has 5 states, 5 states have (on average 11.6) internal successors, (58), 5 states have internal predecessors, (58), 2 states have call successors, (25), 2 states have call predecessors, (25), 3 states have return successors, (21), 3 states have call predecessors, (21), 2 states have call successors, (21) [2025-03-08 18:05:49,850 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 18:05:49,854 INFO L93 Difference]: Finished difference Result 299 states and 367 transitions. [2025-03-08 18:05:49,855 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-03-08 18:05:49,855 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.6) internal successors, (58), 5 states have internal predecessors, (58), 2 states have call successors, (25), 2 states have call predecessors, (25), 3 states have return successors, (21), 3 states have call predecessors, (21), 2 states have call successors, (21) Word has length 141 [2025-03-08 18:05:49,856 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 18:05:49,857 INFO L225 Difference]: With dead ends: 299 [2025-03-08 18:05:49,860 INFO L226 Difference]: Without dead ends: 173 [2025-03-08 18:05:49,861 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-03-08 18:05:49,861 INFO L435 NwaCegarLoop]: 202 mSDtfsCounter, 0 mSDsluCounter, 602 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 804 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2025-03-08 18:05:49,862 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 804 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2025-03-08 18:05:49,862 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 173 states. [2025-03-08 18:05:49,879 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 173 to 173. [2025-03-08 18:05:49,881 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 173 states, 112 states have (on average 1.1517857142857142) internal successors, (129), 113 states have internal predecessors, (129), 41 states have call successors, (41), 18 states have call predecessors, (41), 19 states have return successors, (41), 41 states have call predecessors, (41), 40 states have call successors, (41) [2025-03-08 18:05:49,883 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 173 states to 173 states and 211 transitions. [2025-03-08 18:05:49,884 INFO L78 Accepts]: Start accepts. Automaton has 173 states and 211 transitions. Word has length 141 [2025-03-08 18:05:49,884 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 18:05:49,884 INFO L471 AbstractCegarLoop]: Abstraction has 173 states and 211 transitions. [2025-03-08 18:05:49,885 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.6) internal successors, (58), 5 states have internal predecessors, (58), 2 states have call successors, (25), 2 states have call predecessors, (25), 3 states have return successors, (21), 3 states have call predecessors, (21), 2 states have call successors, (21) [2025-03-08 18:05:49,885 INFO L276 IsEmpty]: Start isEmpty. Operand 173 states and 211 transitions. [2025-03-08 18:05:49,888 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2025-03-08 18:05:49,889 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 18:05:49,889 INFO L218 NwaCegarLoop]: trace histogram [10, 10, 10, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-08 18:05:49,889 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-03-08 18:05:49,889 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-08 18:05:49,890 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 18:05:49,890 INFO L85 PathProgramCache]: Analyzing trace with hash -614702148, now seen corresponding path program 1 times [2025-03-08 18:05:49,890 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 18:05:49,890 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [274947973] [2025-03-08 18:05:49,890 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 18:05:49,891 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 18:05:54,099 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 147 statements into 1 equivalence classes. [2025-03-08 18:05:54,243 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 147 of 147 statements. [2025-03-08 18:05:54,244 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 18:05:54,244 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 18:05:58,630 INFO L134 CoverageAnalysis]: Checked inductivity of 193 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 187 trivial. 0 not checked. [2025-03-08 18:05:58,631 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 18:05:58,631 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [274947973] [2025-03-08 18:05:58,631 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [274947973] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-08 18:05:58,631 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [631333628] [2025-03-08 18:05:58,631 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 18:05:58,631 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-08 18:05:58,631 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-08 18:05:58,633 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 18:05:58,634 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 18:06:03,123 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 147 statements into 1 equivalence classes. [2025-03-08 18:06:03,630 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 147 of 147 statements. [2025-03-08 18:06:03,630 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 18:06:03,630 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 18:06:03,659 INFO L256 TraceCheckSpWp]: Trace formula consists of 4367 conjuncts, 42 conjuncts are in the unsatisfiable core [2025-03-08 18:06:03,671 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-08 18:06:04,449 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 18:06:12,109 INFO L134 CoverageAnalysis]: Checked inductivity of 193 backedges. 137 proven. 0 refuted. 0 times theorem prover too weak. 56 trivial. 0 not checked. [2025-03-08 18:06:12,109 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-08 18:06:12,109 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [631333628] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 18:06:12,109 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-03-08 18:06:12,109 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [10] total 17 [2025-03-08 18:06:12,109 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [178295787] [2025-03-08 18:06:12,112 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 18:06:12,113 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2025-03-08 18:06:12,113 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 18:06:12,114 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2025-03-08 18:06:12,114 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=223, Unknown=0, NotChecked=0, Total=272 [2025-03-08 18:06:12,114 INFO L87 Difference]: Start difference. First operand 173 states and 211 transitions. Second operand has 13 states, 12 states have (on average 6.333333333333333) internal successors, (76), 11 states have internal predecessors, (76), 5 states have call successors, (26), 4 states have call predecessors, (26), 5 states have return successors, (22), 5 states have call predecessors, (22), 5 states have call successors, (22) [2025-03-08 18:06:19,765 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 18:06:19,765 INFO L93 Difference]: Finished difference Result 309 states and 380 transitions. [2025-03-08 18:06:19,766 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2025-03-08 18:06:19,766 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 6.333333333333333) internal successors, (76), 11 states have internal predecessors, (76), 5 states have call successors, (26), 4 states have call predecessors, (26), 5 states have return successors, (22), 5 states have call predecessors, (22), 5 states have call successors, (22) Word has length 147 [2025-03-08 18:06:19,767 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 18:06:19,770 INFO L225 Difference]: With dead ends: 309 [2025-03-08 18:06:19,770 INFO L226 Difference]: Without dead ends: 194 [2025-03-08 18:06:19,771 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 160 GetRequests, 125 SyntacticMatches, 16 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 81 ImplicationChecksByTransitivity, 7.5s TimeCoverageRelationStatistics Valid=81, Invalid=339, Unknown=0, NotChecked=0, Total=420 [2025-03-08 18:06:19,772 INFO L435 NwaCegarLoop]: 190 mSDtfsCounter, 115 mSDsluCounter, 1308 mSDsCounter, 0 mSdLazyCounter, 474 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 119 SdHoareTripleChecker+Valid, 1498 SdHoareTripleChecker+Invalid, 503 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 474 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.6s IncrementalHoareTripleChecker+Time [2025-03-08 18:06:19,772 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [119 Valid, 1498 Invalid, 503 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 474 Invalid, 0 Unknown, 0 Unchecked, 6.6s Time] [2025-03-08 18:06:19,773 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 194 states. [2025-03-08 18:06:19,790 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 194 to 191. [2025-03-08 18:06:19,791 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 191 states, 127 states have (on average 1.1496062992125984) internal successors, (146), 128 states have internal predecessors, (146), 41 states have call successors, (41), 21 states have call predecessors, (41), 22 states have return successors, (41), 41 states have call predecessors, (41), 40 states have call successors, (41) [2025-03-08 18:06:19,792 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 191 states to 191 states and 228 transitions. [2025-03-08 18:06:19,792 INFO L78 Accepts]: Start accepts. Automaton has 191 states and 228 transitions. Word has length 147 [2025-03-08 18:06:19,793 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 18:06:19,793 INFO L471 AbstractCegarLoop]: Abstraction has 191 states and 228 transitions. [2025-03-08 18:06:19,793 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 6.333333333333333) internal successors, (76), 11 states have internal predecessors, (76), 5 states have call successors, (26), 4 states have call predecessors, (26), 5 states have return successors, (22), 5 states have call predecessors, (22), 5 states have call successors, (22) [2025-03-08 18:06:19,793 INFO L276 IsEmpty]: Start isEmpty. Operand 191 states and 228 transitions. [2025-03-08 18:06:19,795 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2025-03-08 18:06:19,795 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 18:06:19,795 INFO L218 NwaCegarLoop]: trace histogram [10, 10, 10, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-08 18:06:19,813 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 18:06:19,995 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable2 [2025-03-08 18:06:19,996 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-08 18:06:19,997 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 18:06:19,997 INFO L85 PathProgramCache]: Analyzing trace with hash -1440689926, now seen corresponding path program 1 times [2025-03-08 18:06:19,997 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 18:06:19,997 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [245251395] [2025-03-08 18:06:19,997 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 18:06:19,997 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 18:06:24,023 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 147 statements into 1 equivalence classes. [2025-03-08 18:06:24,184 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 147 of 147 statements. [2025-03-08 18:06:24,185 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 18:06:24,185 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 18:06:25,315 INFO L134 CoverageAnalysis]: Checked inductivity of 193 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 187 trivial. 0 not checked. [2025-03-08 18:06:25,316 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 18:06:25,316 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [245251395] [2025-03-08 18:06:25,316 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [245251395] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-08 18:06:25,316 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [998166757] [2025-03-08 18:06:25,316 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 18:06:25,316 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-08 18:06:25,316 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-08 18:06:25,318 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 18:06:25,320 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 18:06:29,754 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 147 statements into 1 equivalence classes. [2025-03-08 18:06:30,172 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 147 of 147 statements. [2025-03-08 18:06:30,172 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 18:06:30,173 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 18:06:30,198 INFO L256 TraceCheckSpWp]: Trace formula consists of 4357 conjuncts, 6 conjuncts are in the unsatisfiable core [2025-03-08 18:06:30,204 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-08 18:06:31,371 INFO L134 CoverageAnalysis]: Checked inductivity of 193 backedges. 106 proven. 0 refuted. 0 times theorem prover too weak. 87 trivial. 0 not checked. [2025-03-08 18:06:31,373 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-08 18:06:31,373 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [998166757] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 18:06:31,373 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-03-08 18:06:31,373 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [5] total 9 [2025-03-08 18:06:31,373 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1549492934] [2025-03-08 18:06:31,373 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 18:06:31,374 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-08 18:06:31,374 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 18:06:31,375 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-08 18:06:31,375 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2025-03-08 18:06:31,375 INFO L87 Difference]: Start difference. First operand 191 states and 228 transitions. Second operand has 6 states, 6 states have (on average 12.166666666666666) internal successors, (73), 6 states have internal predecessors, (73), 3 states have call successors, (26), 2 states have call predecessors, (26), 3 states have return successors, (22), 3 states have call predecessors, (22), 3 states have call successors, (22) [2025-03-08 18:06:33,377 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 18:06:33,377 INFO L93 Difference]: Finished difference Result 310 states and 377 transitions. [2025-03-08 18:06:33,378 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-08 18:06:33,378 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 12.166666666666666) internal successors, (73), 6 states have internal predecessors, (73), 3 states have call successors, (26), 2 states have call predecessors, (26), 3 states have return successors, (22), 3 states have call predecessors, (22), 3 states have call successors, (22) Word has length 147 [2025-03-08 18:06:33,378 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 18:06:33,380 INFO L225 Difference]: With dead ends: 310 [2025-03-08 18:06:33,380 INFO L226 Difference]: Without dead ends: 196 [2025-03-08 18:06:33,381 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 154 GetRequests, 144 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=36, Invalid=96, Unknown=0, NotChecked=0, Total=132 [2025-03-08 18:06:33,382 INFO L435 NwaCegarLoop]: 178 mSDtfsCounter, 202 mSDsluCounter, 498 mSDsCounter, 0 mSdLazyCounter, 114 mSolverCounterSat, 36 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 204 SdHoareTripleChecker+Valid, 676 SdHoareTripleChecker+Invalid, 150 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 36 IncrementalHoareTripleChecker+Valid, 114 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2025-03-08 18:06:33,382 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [204 Valid, 676 Invalid, 150 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [36 Valid, 114 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2025-03-08 18:06:33,383 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 196 states. [2025-03-08 18:06:33,394 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 196 to 196. [2025-03-08 18:06:33,394 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 196 states, 130 states have (on average 1.146153846153846) internal successors, (149), 132 states have internal predecessors, (149), 42 states have call successors, (42), 21 states have call predecessors, (42), 23 states have return successors, (44), 42 states have call predecessors, (44), 41 states have call successors, (44) [2025-03-08 18:06:33,396 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 196 states to 196 states and 235 transitions. [2025-03-08 18:06:33,396 INFO L78 Accepts]: Start accepts. Automaton has 196 states and 235 transitions. Word has length 147 [2025-03-08 18:06:33,396 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 18:06:33,396 INFO L471 AbstractCegarLoop]: Abstraction has 196 states and 235 transitions. [2025-03-08 18:06:33,397 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 12.166666666666666) internal successors, (73), 6 states have internal predecessors, (73), 3 states have call successors, (26), 2 states have call predecessors, (26), 3 states have return successors, (22), 3 states have call predecessors, (22), 3 states have call successors, (22) [2025-03-08 18:06:33,397 INFO L276 IsEmpty]: Start isEmpty. Operand 196 states and 235 transitions. [2025-03-08 18:06:33,398 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2025-03-08 18:06:33,399 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 18:06:33,399 INFO L218 NwaCegarLoop]: trace histogram [10, 10, 10, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 18:06:33,422 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 18:06:33,599 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-08 18:06:33,600 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-08 18:06:33,600 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 18:06:33,600 INFO L85 PathProgramCache]: Analyzing trace with hash -721029043, now seen corresponding path program 1 times [2025-03-08 18:06:33,600 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 18:06:33,600 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [703751299] [2025-03-08 18:06:33,600 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 18:06:33,600 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 18:06:37,384 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 153 statements into 1 equivalence classes. [2025-03-08 18:06:37,539 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 153 of 153 statements. [2025-03-08 18:06:37,539 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 18:06:37,539 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 18:06:40,354 INFO L134 CoverageAnalysis]: Checked inductivity of 193 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 188 trivial. 0 not checked. [2025-03-08 18:06:40,354 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 18:06:40,354 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [703751299] [2025-03-08 18:06:40,354 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [703751299] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-08 18:06:40,354 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1363210626] [2025-03-08 18:06:40,354 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 18:06:40,354 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-08 18:06:40,354 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-08 18:06:40,356 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 18:06:40,357 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 18:06:44,857 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 153 statements into 1 equivalence classes. [2025-03-08 18:06:45,278 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 153 of 153 statements. [2025-03-08 18:06:45,278 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 18:06:45,278 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 18:06:45,306 INFO L256 TraceCheckSpWp]: Trace formula consists of 4386 conjuncts, 8 conjuncts are in the unsatisfiable core [2025-03-08 18:06:45,311 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-08 18:06:47,855 INFO L134 CoverageAnalysis]: Checked inductivity of 193 backedges. 70 proven. 0 refuted. 0 times theorem prover too weak. 123 trivial. 0 not checked. [2025-03-08 18:06:47,856 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-08 18:06:47,856 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1363210626] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 18:06:47,856 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-03-08 18:06:47,856 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [7] total 13 [2025-03-08 18:06:47,856 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1906329900] [2025-03-08 18:06:47,856 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 18:06:47,856 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2025-03-08 18:06:47,856 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 18:06:47,857 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2025-03-08 18:06:47,857 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=132, Unknown=0, NotChecked=0, Total=156 [2025-03-08 18:06:47,857 INFO L87 Difference]: Start difference. First operand 196 states and 235 transitions. Second operand has 8 states, 7 states have (on average 10.714285714285714) internal successors, (75), 7 states have internal predecessors, (75), 4 states have call successors, (27), 3 states have call predecessors, (27), 3 states have return successors, (23), 3 states have call predecessors, (23), 4 states have call successors, (23) [2025-03-08 18:06:51,490 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 18:06:51,490 INFO L93 Difference]: Finished difference Result 292 states and 351 transitions. [2025-03-08 18:06:51,491 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-03-08 18:06:51,491 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 10.714285714285714) internal successors, (75), 7 states have internal predecessors, (75), 4 states have call successors, (27), 3 states have call predecessors, (27), 3 states have return successors, (23), 3 states have call predecessors, (23), 4 states have call successors, (23) Word has length 153 [2025-03-08 18:06:51,492 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 18:06:51,493 INFO L225 Difference]: With dead ends: 292 [2025-03-08 18:06:51,493 INFO L226 Difference]: Without dead ends: 189 [2025-03-08 18:06:51,494 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 165 GetRequests, 149 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 3.1s TimeCoverageRelationStatistics Valid=48, Invalid=258, Unknown=0, NotChecked=0, Total=306 [2025-03-08 18:06:51,494 INFO L435 NwaCegarLoop]: 171 mSDtfsCounter, 233 mSDsluCounter, 772 mSDsCounter, 0 mSdLazyCounter, 204 mSolverCounterSat, 50 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 233 SdHoareTripleChecker+Valid, 943 SdHoareTripleChecker+Invalid, 254 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 50 IncrementalHoareTripleChecker+Valid, 204 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2025-03-08 18:06:51,495 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [233 Valid, 943 Invalid, 254 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [50 Valid, 204 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time] [2025-03-08 18:06:51,495 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 189 states. [2025-03-08 18:06:51,506 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 189 to 189. [2025-03-08 18:06:51,506 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 189 states, 125 states have (on average 1.136) internal successors, (142), 126 states have internal predecessors, (142), 41 states have call successors, (41), 21 states have call predecessors, (41), 22 states have return successors, (41), 41 states have call predecessors, (41), 40 states have call successors, (41) [2025-03-08 18:06:51,508 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 189 states to 189 states and 224 transitions. [2025-03-08 18:06:51,508 INFO L78 Accepts]: Start accepts. Automaton has 189 states and 224 transitions. Word has length 153 [2025-03-08 18:06:51,509 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 18:06:51,509 INFO L471 AbstractCegarLoop]: Abstraction has 189 states and 224 transitions. [2025-03-08 18:06:51,509 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 10.714285714285714) internal successors, (75), 7 states have internal predecessors, (75), 4 states have call successors, (27), 3 states have call predecessors, (27), 3 states have return successors, (23), 3 states have call predecessors, (23), 4 states have call successors, (23) [2025-03-08 18:06:51,509 INFO L276 IsEmpty]: Start isEmpty. Operand 189 states and 224 transitions. [2025-03-08 18:06:51,510 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2025-03-08 18:06:51,510 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 18:06:51,510 INFO L218 NwaCegarLoop]: trace histogram [10, 10, 10, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-08 18:06:51,536 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 18:06:51,712 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-08 18:06:51,713 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-08 18:06:51,713 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 18:06:51,713 INFO L85 PathProgramCache]: Analyzing trace with hash 894257696, now seen corresponding path program 1 times [2025-03-08 18:06:51,713 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 18:06:51,713 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [322683725] [2025-03-08 18:06:51,713 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 18:06:51,713 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms