./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/aws-c-common/aws_hash_iter_done_harness.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 826ab2ba Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc9b47a5-bb84-4ede-afd0-1b6741adaeee/bin/uautomizer-verify-qhAvR1uOyd/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc9b47a5-bb84-4ede-afd0-1b6741adaeee/bin/uautomizer-verify-qhAvR1uOyd/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc9b47a5-bb84-4ede-afd0-1b6741adaeee/bin/uautomizer-verify-qhAvR1uOyd/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc9b47a5-bb84-4ede-afd0-1b6741adaeee/bin/uautomizer-verify-qhAvR1uOyd/config/AutomizerReach.xml -i ../../sv-benchmarks/c/aws-c-common/aws_hash_iter_done_harness.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc9b47a5-bb84-4ede-afd0-1b6741adaeee/bin/uautomizer-verify-qhAvR1uOyd/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc9b47a5-bb84-4ede-afd0-1b6741adaeee/bin/uautomizer-verify-qhAvR1uOyd --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 6d54635a45b4bea3ce8bb2da849d6298e1094d0c6d7d45bb3baae6f41da1bbe7 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-826ab2b [2024-11-13 13:00:26,072 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-13 13:00:26,163 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc9b47a5-bb84-4ede-afd0-1b6741adaeee/bin/uautomizer-verify-qhAvR1uOyd/config/svcomp-Reach-64bit-Automizer_Default.epf [2024-11-13 13:00:26,174 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-13 13:00:26,177 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-13 13:00:26,214 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-13 13:00:26,219 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-13 13:00:26,219 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-13 13:00:26,220 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-13 13:00:26,220 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-13 13:00:26,220 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-13 13:00:26,221 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-13 13:00:26,221 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-13 13:00:26,221 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-13 13:00:26,222 INFO L153 SettingsManager]: * Use SBE=true [2024-11-13 13:00:26,222 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-13 13:00:26,223 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-13 13:00:26,223 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-13 13:00:26,223 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-13 13:00:26,223 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-13 13:00:26,223 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-13 13:00:26,223 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-13 13:00:26,223 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-13 13:00:26,223 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-13 13:00:26,223 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-13 13:00:26,223 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-13 13:00:26,224 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-13 13:00:26,224 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-13 13:00:26,224 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-13 13:00:26,224 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-13 13:00:26,224 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-13 13:00:26,224 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-13 13:00:26,224 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-13 13:00:26,224 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-13 13:00:26,224 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-13 13:00:26,224 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-13 13:00:26,224 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-13 13:00:26,226 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-13 13:00:26,226 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-13 13:00:26,226 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 -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc9b47a5-bb84-4ede-afd0-1b6741adaeee/bin/uautomizer-verify-qhAvR1uOyd 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 -> 6d54635a45b4bea3ce8bb2da849d6298e1094d0c6d7d45bb3baae6f41da1bbe7 [2024-11-13 13:00:26,545 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-13 13:00:26,552 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-13 13:00:26,558 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-13 13:00:26,560 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-13 13:00:26,560 INFO L274 PluginConnector]: CDTParser initialized [2024-11-13 13:00:26,563 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc9b47a5-bb84-4ede-afd0-1b6741adaeee/bin/uautomizer-verify-qhAvR1uOyd/../../sv-benchmarks/c/aws-c-common/aws_hash_iter_done_harness.i Unable to find full path for "g++" [2024-11-13 13:00:28,437 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-13 13:00:29,051 INFO L384 CDTParser]: Found 1 translation units. [2024-11-13 13:00:29,052 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc9b47a5-bb84-4ede-afd0-1b6741adaeee/sv-benchmarks/c/aws-c-common/aws_hash_iter_done_harness.i [2024-11-13 13:00:29,100 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc9b47a5-bb84-4ede-afd0-1b6741adaeee/bin/uautomizer-verify-qhAvR1uOyd/data/0e28df610/347f28e53a544385b3373c7e5eb87817/FLAG241dcce5f [2024-11-13 13:00:29,120 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc9b47a5-bb84-4ede-afd0-1b6741adaeee/bin/uautomizer-verify-qhAvR1uOyd/data/0e28df610/347f28e53a544385b3373c7e5eb87817 [2024-11-13 13:00:29,123 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-13 13:00:29,127 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-13 13:00:29,128 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-13 13:00:29,128 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-13 13:00:29,133 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-13 13:00:29,134 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 01:00:29" (1/1) ... [2024-11-13 13:00:29,137 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1f495eb2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:00:29, skipping insertion in model container [2024-11-13 13:00:29,137 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 01:00:29" (1/1) ... [2024-11-13 13:00:29,264 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-13 13:00:29,629 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc9b47a5-bb84-4ede-afd0-1b6741adaeee/sv-benchmarks/c/aws-c-common/aws_hash_iter_done_harness.i[4492,4505] [2024-11-13 13:00:29,642 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc9b47a5-bb84-4ede-afd0-1b6741adaeee/sv-benchmarks/c/aws-c-common/aws_hash_iter_done_harness.i[4552,4565] [2024-11-13 13:00:31,019 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-13 13:00:31,020 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-13 13:00:31,021 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-13 13:00:31,022 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-13 13:00:31,023 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-13 13:00:31,041 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-13 13:00:31,042 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-13 13:00:31,048 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-13 13:00:31,048 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-13 13:00:31,051 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-13 13:00:31,052 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-13 13:00:31,053 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-13 13:00:31,054 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-13 13:00:32,303 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-13 13:00:32,304 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-13 13:00:32,335 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-13 13:00:32,336 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-13 13:00:32,342 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-13 13:00:32,342 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-13 13:00:32,365 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-13 13:00:32,366 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-13 13:00:32,366 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-13 13:00:32,367 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-13 13:00:32,367 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-13 13:00:32,367 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-13 13:00:32,369 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-13 13:00:32,424 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc9b47a5-bb84-4ede-afd0-1b6741adaeee/sv-benchmarks/c/aws-c-common/aws_hash_iter_done_harness.i[228041,228054] [2024-11-13 13:00:32,426 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 13:00:32,474 INFO L200 MainTranslator]: Completed pre-run [2024-11-13 13:00:32,489 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc9b47a5-bb84-4ede-afd0-1b6741adaeee/sv-benchmarks/c/aws-c-common/aws_hash_iter_done_harness.i[4492,4505] [2024-11-13 13:00:32,489 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc9b47a5-bb84-4ede-afd0-1b6741adaeee/sv-benchmarks/c/aws-c-common/aws_hash_iter_done_harness.i[4552,4565] [2024-11-13 13:00:32,557 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-13 13:00:32,558 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-13 13:00:32,558 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-13 13:00:32,558 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-13 13:00:32,559 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-13 13:00:32,570 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-13 13:00:32,571 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-13 13:00:32,573 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-13 13:00:32,575 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-13 13:00:32,576 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-13 13:00:32,577 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-13 13:00:32,577 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-13 13:00:32,578 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-13 13:00:32,746 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" : : "r"(pBuf) : "memory"); [7558-7569] [2024-11-13 13:00:32,867 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-13 13:00:32,867 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-13 13:00:32,879 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-13 13:00:32,880 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-13 13:00:32,883 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-13 13:00:32,884 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-13 13:00:32,899 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-13 13:00:32,901 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-13 13:00:32,902 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-13 13:00:32,902 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-13 13:00:32,903 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-13 13:00:32,904 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-13 13:00:32,905 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-13 13:00:32,934 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc9b47a5-bb84-4ede-afd0-1b6741adaeee/sv-benchmarks/c/aws-c-common/aws_hash_iter_done_harness.i[228041,228054] [2024-11-13 13:00:32,934 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 13:00:33,404 INFO L204 MainTranslator]: Completed translation [2024-11-13 13:00:33,405 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:00:33 WrapperNode [2024-11-13 13:00:33,405 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-13 13:00:33,406 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-13 13:00:33,406 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-13 13:00:33,406 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-13 13:00:33,411 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:00:33" (1/1) ... [2024-11-13 13:00:33,487 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:00:33" (1/1) ... [2024-11-13 13:00:33,566 INFO L138 Inliner]: procedures = 763, calls = 2449, calls flagged for inlining = 68, calls inlined = 11, statements flattened = 644 [2024-11-13 13:00:33,567 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-13 13:00:33,567 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-13 13:00:33,567 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-13 13:00:33,567 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-13 13:00:33,578 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:00:33" (1/1) ... [2024-11-13 13:00:33,578 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:00:33" (1/1) ... [2024-11-13 13:00:33,584 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:00:33" (1/1) ... [2024-11-13 13:00:33,691 INFO L175 MemorySlicer]: Split 318 memory accesses to 9 slices as follows [238, 2, 19, 6, 36, 2, 3, 7, 5]. 75 percent of accesses are in the largest equivalence class. The 22 initializations are split as follows [6, 2, 0, 0, 9, 0, 0, 0, 5]. The 239 writes are split as follows [232, 0, 1, 2, 1, 1, 1, 1, 0]. [2024-11-13 13:00:33,691 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:00:33" (1/1) ... [2024-11-13 13:00:33,691 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:00:33" (1/1) ... [2024-11-13 13:00:33,757 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:00:33" (1/1) ... [2024-11-13 13:00:33,762 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:00:33" (1/1) ... [2024-11-13 13:00:33,785 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:00:33" (1/1) ... [2024-11-13 13:00:33,793 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:00:33" (1/1) ... [2024-11-13 13:00:33,817 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-13 13:00:33,817 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-13 13:00:33,818 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-13 13:00:33,818 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-13 13:00:33,819 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:00:33" (1/1) ... [2024-11-13 13:00:33,830 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-13 13:00:33,850 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc9b47a5-bb84-4ede-afd0-1b6741adaeee/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 13:00:33,862 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc9b47a5-bb84-4ede-afd0-1b6741adaeee/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-13 13:00:33,871 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc9b47a5-bb84-4ede-afd0-1b6741adaeee/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-13 13:00:33,895 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#0 [2024-11-13 13:00:33,896 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#1 [2024-11-13 13:00:33,896 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#2 [2024-11-13 13:00:33,896 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#3 [2024-11-13 13:00:33,896 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#4 [2024-11-13 13:00:33,896 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#5 [2024-11-13 13:00:33,896 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#6 [2024-11-13 13:00:33,897 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#7 [2024-11-13 13:00:33,897 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#8 [2024-11-13 13:00:33,897 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-13 13:00:33,897 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#0 [2024-11-13 13:00:33,897 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#1 [2024-11-13 13:00:33,897 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#2 [2024-11-13 13:00:33,897 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#3 [2024-11-13 13:00:33,898 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#4 [2024-11-13 13:00:33,898 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#5 [2024-11-13 13:00:33,898 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#6 [2024-11-13 13:00:33,898 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#7 [2024-11-13 13:00:33,899 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#8 [2024-11-13 13:00:33,899 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-13 13:00:33,899 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-13 13:00:33,899 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-11-13 13:00:33,899 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-11-13 13:00:33,899 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2024-11-13 13:00:33,899 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2024-11-13 13:00:33,899 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#6 [2024-11-13 13:00:33,899 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#7 [2024-11-13 13:00:33,899 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#8 [2024-11-13 13:00:33,900 INFO L130 BoogieDeclarations]: Found specification of procedure aws_hash_iter_done [2024-11-13 13:00:33,900 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_hash_iter_done [2024-11-13 13:00:33,900 INFO L130 BoogieDeclarations]: Found specification of procedure aws_raise_error [2024-11-13 13:00:33,900 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_raise_error [2024-11-13 13:00:33,901 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-11-13 13:00:33,901 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-11-13 13:00:33,901 INFO L130 BoogieDeclarations]: Found specification of procedure hash_table_state_is_valid [2024-11-13 13:00:33,901 INFO L138 BoogieDeclarations]: Found implementation of procedure hash_table_state_is_valid [2024-11-13 13:00:33,902 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-13 13:00:33,902 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-13 13:00:33,902 INFO L130 BoogieDeclarations]: Found specification of procedure hash_table_state_required_bytes [2024-11-13 13:00:33,902 INFO L138 BoogieDeclarations]: Found implementation of procedure hash_table_state_required_bytes [2024-11-13 13:00:33,902 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2024-11-13 13:00:33,902 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2024-11-13 13:00:33,902 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2024-11-13 13:00:33,902 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2024-11-13 13:00:33,902 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#4 [2024-11-13 13:00:33,903 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#5 [2024-11-13 13:00:33,903 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#6 [2024-11-13 13:00:33,903 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#7 [2024-11-13 13:00:33,903 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#8 [2024-11-13 13:00:33,903 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-13 13:00:33,903 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-13 13:00:33,903 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2024-11-13 13:00:33,903 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2024-11-13 13:00:33,903 INFO L130 BoogieDeclarations]: Found specification of procedure aws_mul_size_checked [2024-11-13 13:00:33,903 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_mul_size_checked [2024-11-13 13:00:33,903 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#0 [2024-11-13 13:00:33,903 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#1 [2024-11-13 13:00:33,903 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#2 [2024-11-13 13:00:33,903 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#3 [2024-11-13 13:00:33,903 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#4 [2024-11-13 13:00:33,903 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#5 [2024-11-13 13:00:33,903 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#6 [2024-11-13 13:00:33,903 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#7 [2024-11-13 13:00:33,903 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#8 [2024-11-13 13:00:33,903 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-13 13:00:33,903 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-13 13:00:33,903 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-13 13:00:33,904 INFO L130 BoogieDeclarations]: Found specification of procedure aws_hash_iter_is_valid [2024-11-13 13:00:33,904 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_hash_iter_is_valid [2024-11-13 13:00:33,904 INFO L130 BoogieDeclarations]: Found specification of procedure __CPROVER_overflow_plus [2024-11-13 13:00:33,904 INFO L138 BoogieDeclarations]: Found implementation of procedure __CPROVER_overflow_plus [2024-11-13 13:00:33,904 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2024-11-13 13:00:33,904 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2024-11-13 13:00:33,904 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2024-11-13 13:00:33,904 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2024-11-13 13:00:33,904 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#4 [2024-11-13 13:00:33,904 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#5 [2024-11-13 13:00:33,904 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#6 [2024-11-13 13:00:33,904 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#7 [2024-11-13 13:00:33,904 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#8 [2024-11-13 13:00:33,904 INFO L130 BoogieDeclarations]: Found specification of procedure aws_hash_table_is_valid [2024-11-13 13:00:33,904 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_hash_table_is_valid [2024-11-13 13:00:33,904 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#0 [2024-11-13 13:00:33,904 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#1 [2024-11-13 13:00:33,904 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#2 [2024-11-13 13:00:33,904 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#3 [2024-11-13 13:00:33,904 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#4 [2024-11-13 13:00:33,908 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#5 [2024-11-13 13:00:33,908 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#6 [2024-11-13 13:00:33,908 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#7 [2024-11-13 13:00:33,908 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#8 [2024-11-13 13:00:33,908 INFO L130 BoogieDeclarations]: Found specification of procedure __CPROVER_overflow_mult [2024-11-13 13:00:33,908 INFO L138 BoogieDeclarations]: Found implementation of procedure __CPROVER_overflow_mult [2024-11-13 13:00:33,908 INFO L130 BoogieDeclarations]: Found specification of procedure aws_add_size_checked [2024-11-13 13:00:33,909 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_add_size_checked [2024-11-13 13:00:33,909 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_uint64_t [2024-11-13 13:00:33,909 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_uint64_t [2024-11-13 13:00:33,909 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-13 13:00:33,909 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-13 13:00:33,909 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-11-13 13:00:33,909 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-11-13 13:00:33,909 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2024-11-13 13:00:33,909 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2024-11-13 13:00:33,909 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#6 [2024-11-13 13:00:33,909 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#7 [2024-11-13 13:00:33,909 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#8 [2024-11-13 13:00:33,909 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-13 13:00:33,909 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-13 13:00:33,909 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-11-13 13:00:33,909 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-11-13 13:00:33,909 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2024-11-13 13:00:33,909 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2024-11-13 13:00:33,909 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#6 [2024-11-13 13:00:33,909 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#7 [2024-11-13 13:00:33,910 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#8 [2024-11-13 13:00:33,910 INFO L130 BoogieDeclarations]: Found specification of procedure aws_is_power_of_two [2024-11-13 13:00:33,910 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_is_power_of_two [2024-11-13 13:00:34,382 INFO L238 CfgBuilder]: Building ICFG [2024-11-13 13:00:34,385 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-13 13:00:41,020 INFO L? ?]: Removed 154 outVars from TransFormulas that were not future-live. [2024-11-13 13:00:41,021 INFO L287 CfgBuilder]: Performing block encoding [2024-11-13 13:00:41,036 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-13 13:00:41,038 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-13 13:00:41,038 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 01:00:41 BoogieIcfgContainer [2024-11-13 13:00:41,038 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-13 13:00:41,041 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-13 13:00:41,041 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-13 13:00:41,046 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-13 13:00:41,046 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.11 01:00:29" (1/3) ... [2024-11-13 13:00:41,047 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2650cf97 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 01:00:41, skipping insertion in model container [2024-11-13 13:00:41,047 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:00:33" (2/3) ... [2024-11-13 13:00:41,048 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2650cf97 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 01:00:41, skipping insertion in model container [2024-11-13 13:00:41,048 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 01:00:41" (3/3) ... [2024-11-13 13:00:41,049 INFO L112 eAbstractionObserver]: Analyzing ICFG aws_hash_iter_done_harness.i [2024-11-13 13:00:41,067 INFO L217 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-13 13:00:41,070 INFO L154 ceAbstractionStarter]: Applying trace abstraction to ICFG aws_hash_iter_done_harness.i that has 16 procedures, 163 locations, 1 initial locations, 0 loop locations, and 1 error locations. [2024-11-13 13:00:41,138 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-13 13:00:41,151 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;@70b3a722, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-13 13:00:41,151 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-13 13:00:41,156 INFO L276 IsEmpty]: Start isEmpty. Operand has 163 states, 106 states have (on average 1.2452830188679245) internal successors, (132), 107 states have internal predecessors, (132), 40 states have call successors, (40), 15 states have call predecessors, (40), 15 states have return successors, (40), 40 states have call predecessors, (40), 40 states have call successors, (40) [2024-11-13 13:00:41,171 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2024-11-13 13:00:41,172 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 13:00:41,173 INFO L215 NwaCegarLoop]: trace histogram [10, 10, 10, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 13:00:41,173 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 13:00:41,177 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:00:41,179 INFO L85 PathProgramCache]: Analyzing trace with hash 989145246, now seen corresponding path program 1 times [2024-11-13 13:00:41,187 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 13:00:41,189 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [43946707] [2024-11-13 13:00:41,190 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:00:41,191 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 13:00:48,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:00:48,760 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-13 13:00:48,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:00:48,786 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-11-13 13:00:48,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:00:48,813 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-13 13:00:48,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:00:48,844 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-13 13:00:48,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:00:49,099 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-11-13 13:00:49,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:00:49,291 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-13 13:00:49,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:00:49,332 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-13 13:00:49,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:00:49,360 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-11-13 13:00:49,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:00:49,459 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-13 13:00:49,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:00:49,481 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-13 13:00:49,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:00:49,497 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-13 13:00:49,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:00:49,523 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2024-11-13 13:00:49,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:00:49,538 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-11-13 13:00:49,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:00:49,553 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-11-13 13:00:49,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:00:49,576 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2024-11-13 13:00:49,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:00:49,591 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2024-11-13 13:00:49,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:00:49,639 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-13 13:00:49,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:00:49,674 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-13 13:00:49,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:00:49,693 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2024-11-13 13:00:49,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:00:49,710 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2024-11-13 13:00:49,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:00:49,728 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2024-11-13 13:00:49,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:00:49,741 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2024-11-13 13:00:49,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:00:49,763 INFO L134 CoverageAnalysis]: Checked inductivity of 199 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 199 trivial. 0 not checked. [2024-11-13 13:00:49,764 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 13:00:49,765 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [43946707] [2024-11-13 13:00:49,765 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [43946707] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 13:00:49,765 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 13:00:49,766 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-13 13:00:49,767 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1223998123] [2024-11-13 13:00:49,768 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 13:00:49,772 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-13 13:00:49,773 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 13:00:49,796 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-13 13:00:49,796 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-13 13:00:49,799 INFO L87 Difference]: Start difference. First operand has 163 states, 106 states have (on average 1.2452830188679245) internal successors, (132), 107 states have internal predecessors, (132), 40 states have call successors, (40), 15 states have call predecessors, (40), 15 states have return successors, (40), 40 states have call predecessors, (40), 40 states have call successors, (40) Second operand has 5 states, 5 states have (on average 11.2) internal successors, (56), 2 states have internal predecessors, (56), 2 states have call successors, (22), 5 states have call predecessors, (22), 2 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2024-11-13 13:00:53,915 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.10s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-13 13:00:58,254 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.34s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-13 13:01:02,592 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.34s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-13 13:01:06,147 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 13:01:06,147 INFO L93 Difference]: Finished difference Result 321 states and 449 transitions. [2024-11-13 13:01:06,148 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-13 13:01:06,150 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.2) internal successors, (56), 2 states have internal predecessors, (56), 2 states have call successors, (22), 5 states have call predecessors, (22), 2 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) Word has length 142 [2024-11-13 13:01:06,150 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 13:01:06,162 INFO L225 Difference]: With dead ends: 321 [2024-11-13 13:01:06,163 INFO L226 Difference]: Without dead ends: 160 [2024-11-13 13:01:06,169 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 54 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2024-11-13 13:01:06,175 INFO L432 NwaCegarLoop]: 88 mSDtfsCounter, 183 mSDsluCounter, 67 mSDsCounter, 0 mSdLazyCounter, 199 mSolverCounterSat, 84 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 14.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 196 SdHoareTripleChecker+Valid, 155 SdHoareTripleChecker+Invalid, 286 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 84 IncrementalHoareTripleChecker+Valid, 199 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 16.0s IncrementalHoareTripleChecker+Time [2024-11-13 13:01:06,177 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [196 Valid, 155 Invalid, 286 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [84 Valid, 199 Invalid, 3 Unknown, 0 Unchecked, 16.0s Time] [2024-11-13 13:01:06,194 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 160 states. [2024-11-13 13:01:06,243 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 160 to 157. [2024-11-13 13:01:06,246 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 157 states, 101 states have (on average 1.2277227722772277) internal successors, (124), 102 states have internal predecessors, (124), 40 states have call successors, (40), 15 states have call predecessors, (40), 15 states have return successors, (39), 39 states have call predecessors, (39), 39 states have call successors, (39) [2024-11-13 13:01:06,254 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 157 states to 157 states and 203 transitions. [2024-11-13 13:01:06,259 INFO L78 Accepts]: Start accepts. Automaton has 157 states and 203 transitions. Word has length 142 [2024-11-13 13:01:06,259 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 13:01:06,259 INFO L471 AbstractCegarLoop]: Abstraction has 157 states and 203 transitions. [2024-11-13 13:01:06,259 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.2) internal successors, (56), 2 states have internal predecessors, (56), 2 states have call successors, (22), 5 states have call predecessors, (22), 2 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2024-11-13 13:01:06,261 INFO L276 IsEmpty]: Start isEmpty. Operand 157 states and 203 transitions. [2024-11-13 13:01:06,264 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2024-11-13 13:01:06,267 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 13:01:06,267 INFO L215 NwaCegarLoop]: trace histogram [10, 10, 10, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 13:01:06,268 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-13 13:01:06,268 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 13:01:06,269 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:01:06,269 INFO L85 PathProgramCache]: Analyzing trace with hash 1365154082, now seen corresponding path program 1 times [2024-11-13 13:01:06,269 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 13:01:06,269 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1691448871] [2024-11-13 13:01:06,269 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:01:06,269 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 13:01:11,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:01:12,998 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-13 13:01:13,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:01:13,013 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-11-13 13:01:13,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:01:13,028 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-13 13:01:13,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:01:13,042 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-13 13:01:13,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:01:13,403 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-11-13 13:01:13,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:01:13,847 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-13 13:01:13,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:01:14,283 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-13 13:01:14,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:01:14,299 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-11-13 13:01:14,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:01:14,524 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-13 13:01:14,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:01:14,542 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-13 13:01:14,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:01:14,554 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-13 13:01:14,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:01:14,569 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2024-11-13 13:01:14,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:01:14,581 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-11-13 13:01:14,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:01:14,592 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-11-13 13:01:14,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:01:14,602 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2024-11-13 13:01:14,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:01:14,614 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2024-11-13 13:01:14,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:01:14,643 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-13 13:01:14,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:01:14,665 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-13 13:01:14,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:01:14,681 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2024-11-13 13:01:14,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:01:14,694 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2024-11-13 13:01:14,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:01:14,705 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2024-11-13 13:01:14,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:01:14,719 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2024-11-13 13:01:14,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:01:14,735 INFO L134 CoverageAnalysis]: Checked inductivity of 199 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 192 trivial. 0 not checked. [2024-11-13 13:01:14,736 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 13:01:14,736 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1691448871] [2024-11-13 13:01:14,737 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1691448871] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 13:01:14,737 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [691226301] [2024-11-13 13:01:14,737 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:01:14,737 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 13:01:14,737 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc9b47a5-bb84-4ede-afd0-1b6741adaeee/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 13:01:14,739 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc9b47a5-bb84-4ede-afd0-1b6741adaeee/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 13:01:14,742 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc9b47a5-bb84-4ede-afd0-1b6741adaeee/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-13 13:01:21,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:01:21,333 INFO L255 TraceCheckSpWp]: Trace formula consists of 4443 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-13 13:01:21,344 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 13:01:24,078 INFO L134 CoverageAnalysis]: Checked inductivity of 199 backedges. 115 proven. 20 refuted. 0 times theorem prover too weak. 64 trivial. 0 not checked. [2024-11-13 13:01:24,078 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 13:01:27,217 INFO L134 CoverageAnalysis]: Checked inductivity of 199 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 196 trivial. 0 not checked. [2024-11-13 13:01:27,218 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [691226301] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-13 13:01:27,218 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-13 13:01:27,218 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 6, 6] total 15 [2024-11-13 13:01:27,219 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1335423056] [2024-11-13 13:01:27,219 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-13 13:01:27,220 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-11-13 13:01:27,221 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 13:01:27,222 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-11-13 13:01:27,222 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=177, Unknown=0, NotChecked=0, Total=210 [2024-11-13 13:01:27,222 INFO L87 Difference]: Start difference. First operand 157 states and 203 transitions. Second operand has 15 states, 15 states have (on average 9.0) internal successors, (135), 12 states have internal predecessors, (135), 6 states have call successors, (57), 6 states have call predecessors, (57), 5 states have return successors, (54), 7 states have call predecessors, (54), 6 states have call successors, (54) [2024-11-13 13:01:31,290 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.07s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-13 13:01:35,652 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.36s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-13 13:01:40,085 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.43s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-13 13:01:59,545 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 13:01:59,546 INFO L93 Difference]: Finished difference Result 316 states and 413 transitions. [2024-11-13 13:01:59,546 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-13 13:01:59,547 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 9.0) internal successors, (135), 12 states have internal predecessors, (135), 6 states have call successors, (57), 6 states have call predecessors, (57), 5 states have return successors, (54), 7 states have call predecessors, (54), 6 states have call successors, (54) Word has length 142 [2024-11-13 13:01:59,547 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 13:01:59,552 INFO L225 Difference]: With dead ends: 316 [2024-11-13 13:01:59,552 INFO L226 Difference]: Without dead ends: 171 [2024-11-13 13:01:59,557 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 345 GetRequests, 321 SyntacticMatches, 1 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 63 ImplicationChecksByTransitivity, 5.9s TimeCoverageRelationStatistics Valid=112, Invalid=488, Unknown=0, NotChecked=0, Total=600 [2024-11-13 13:01:59,558 INFO L432 NwaCegarLoop]: 59 mSDtfsCounter, 507 mSDsluCounter, 362 mSDsCounter, 0 mSdLazyCounter, 1275 mSolverCounterSat, 306 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 27.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 509 SdHoareTripleChecker+Valid, 421 SdHoareTripleChecker+Invalid, 1584 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 306 IncrementalHoareTripleChecker+Valid, 1275 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 29.3s IncrementalHoareTripleChecker+Time [2024-11-13 13:01:59,558 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [509 Valid, 421 Invalid, 1584 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [306 Valid, 1275 Invalid, 3 Unknown, 0 Unchecked, 29.3s Time] [2024-11-13 13:01:59,559 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 171 states. [2024-11-13 13:01:59,596 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 171 to 164. [2024-11-13 13:01:59,597 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 164 states, 106 states have (on average 1.2169811320754718) internal successors, (129), 108 states have internal predecessors, (129), 40 states have call successors, (40), 15 states have call predecessors, (40), 17 states have return successors, (42), 40 states have call predecessors, (42), 39 states have call successors, (42) [2024-11-13 13:01:59,601 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 164 states to 164 states and 211 transitions. [2024-11-13 13:01:59,602 INFO L78 Accepts]: Start accepts. Automaton has 164 states and 211 transitions. Word has length 142 [2024-11-13 13:01:59,602 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 13:01:59,604 INFO L471 AbstractCegarLoop]: Abstraction has 164 states and 211 transitions. [2024-11-13 13:01:59,604 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 9.0) internal successors, (135), 12 states have internal predecessors, (135), 6 states have call successors, (57), 6 states have call predecessors, (57), 5 states have return successors, (54), 7 states have call predecessors, (54), 6 states have call successors, (54) [2024-11-13 13:01:59,605 INFO L276 IsEmpty]: Start isEmpty. Operand 164 states and 211 transitions. [2024-11-13 13:01:59,611 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2024-11-13 13:01:59,611 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 13:01:59,611 INFO L215 NwaCegarLoop]: trace histogram [10, 10, 10, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 13:01:59,646 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc9b47a5-bb84-4ede-afd0-1b6741adaeee/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-13 13:01:59,812 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc9b47a5-bb84-4ede-afd0-1b6741adaeee/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable1 [2024-11-13 13:01:59,812 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 13:01:59,813 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:01:59,813 INFO L85 PathProgramCache]: Analyzing trace with hash 1821105164, now seen corresponding path program 1 times [2024-11-13 13:01:59,813 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 13:01:59,813 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [628485805] [2024-11-13 13:01:59,814 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:01:59,814 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 13:02:04,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:02:08,773 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-13 13:02:08,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:02:08,788 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-11-13 13:02:08,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:02:08,808 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-13 13:02:08,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:02:08,823 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-13 13:02:08,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:02:09,197 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-11-13 13:02:09,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:02:09,545 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-13 13:02:09,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:02:09,564 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-13 13:02:09,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:02:09,770 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-13 13:02:09,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:02:09,780 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-13 13:02:09,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:02:10,041 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-11-13 13:02:10,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:02:10,372 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-13 13:02:10,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:02:10,390 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-13 13:02:10,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:02:11,615 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-11-13 13:02:11,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:02:11,625 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-11-13 13:02:11,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:02:11,636 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-11-13 13:02:11,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:02:11,646 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-11-13 13:02:11,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:02:11,657 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-11-13 13:02:11,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:02:11,679 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-13 13:02:11,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:02:11,692 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-13 13:02:11,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:02:11,702 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-13 13:02:11,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:02:11,710 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2024-11-13 13:02:11,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:02:11,718 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2024-11-13 13:02:11,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:02:11,725 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2024-11-13 13:02:11,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:02:11,735 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2024-11-13 13:02:11,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:02:11,744 INFO L134 CoverageAnalysis]: Checked inductivity of 205 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 205 trivial. 0 not checked. [2024-11-13 13:02:11,744 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 13:02:11,744 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [628485805] [2024-11-13 13:02:11,744 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [628485805] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 13:02:11,744 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 13:02:11,744 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2024-11-13 13:02:11,744 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [686826980] [2024-11-13 13:02:11,745 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 13:02:11,745 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-13 13:02:11,745 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 13:02:11,746 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-13 13:02:11,746 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=150, Unknown=0, NotChecked=0, Total=182 [2024-11-13 13:02:11,747 INFO L87 Difference]: Start difference. First operand 164 states and 211 transitions. Second operand has 14 states, 14 states have (on average 4.428571428571429) internal successors, (62), 9 states have internal predecessors, (62), 4 states have call successors, (23), 6 states have call predecessors, (23), 3 states have return successors, (21), 4 states have call predecessors, (21), 4 states have call successors, (21) [2024-11-13 13:02:15,833 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.09s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-13 13:02:20,175 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.34s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-13 13:02:24,522 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.35s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-13 13:02:28,870 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.35s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-13 13:02:46,769 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 13:02:46,769 INFO L93 Difference]: Finished difference Result 320 states and 416 transitions. [2024-11-13 13:02:46,770 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-11-13 13:02:46,770 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 4.428571428571429) internal successors, (62), 9 states have internal predecessors, (62), 4 states have call successors, (23), 6 states have call predecessors, (23), 3 states have return successors, (21), 4 states have call predecessors, (21), 4 states have call successors, (21) Word has length 155 [2024-11-13 13:02:46,771 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 13:02:46,773 INFO L225 Difference]: With dead ends: 320 [2024-11-13 13:02:46,773 INFO L226 Difference]: Without dead ends: 180 [2024-11-13 13:02:46,775 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 46 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 5.2s TimeCoverageRelationStatistics Valid=95, Invalid=325, Unknown=0, NotChecked=0, Total=420 [2024-11-13 13:02:46,775 INFO L432 NwaCegarLoop]: 77 mSDtfsCounter, 157 mSDsluCounter, 360 mSDsCounter, 0 mSdLazyCounter, 1180 mSolverCounterSat, 35 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 30.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 189 SdHoareTripleChecker+Valid, 437 SdHoareTripleChecker+Invalid, 1219 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 35 IncrementalHoareTripleChecker+Valid, 1180 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 32.4s IncrementalHoareTripleChecker+Time [2024-11-13 13:02:46,776 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [189 Valid, 437 Invalid, 1219 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [35 Valid, 1180 Invalid, 4 Unknown, 0 Unchecked, 32.4s Time] [2024-11-13 13:02:46,777 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 180 states. [2024-11-13 13:02:46,804 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 180 to 169. [2024-11-13 13:02:46,804 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 169 states, 110 states have (on average 1.2181818181818183) internal successors, (134), 113 states have internal predecessors, (134), 40 states have call successors, (40), 15 states have call predecessors, (40), 18 states have return successors, (43), 40 states have call predecessors, (43), 39 states have call successors, (43) [2024-11-13 13:02:46,806 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 169 states to 169 states and 217 transitions. [2024-11-13 13:02:46,808 INFO L78 Accepts]: Start accepts. Automaton has 169 states and 217 transitions. Word has length 155 [2024-11-13 13:02:46,808 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 13:02:46,809 INFO L471 AbstractCegarLoop]: Abstraction has 169 states and 217 transitions. [2024-11-13 13:02:46,809 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 4.428571428571429) internal successors, (62), 9 states have internal predecessors, (62), 4 states have call successors, (23), 6 states have call predecessors, (23), 3 states have return successors, (21), 4 states have call predecessors, (21), 4 states have call successors, (21) [2024-11-13 13:02:46,809 INFO L276 IsEmpty]: Start isEmpty. Operand 169 states and 217 transitions. [2024-11-13 13:02:46,814 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2024-11-13 13:02:46,815 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 13:02:46,816 INFO L215 NwaCegarLoop]: trace histogram [10, 10, 10, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 13:02:46,816 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-13 13:02:46,816 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 13:02:46,816 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:02:46,816 INFO L85 PathProgramCache]: Analyzing trace with hash 826411466, now seen corresponding path program 1 times [2024-11-13 13:02:46,817 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 13:02:46,817 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1058498074] [2024-11-13 13:02:46,817 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:02:46,817 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 13:02:51,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:02:52,620 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-13 13:02:52,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:02:52,630 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-11-13 13:02:52,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:02:52,644 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-13 13:02:52,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:02:52,654 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-13 13:02:52,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:02:53,104 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-11-13 13:02:53,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:02:53,345 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-13 13:02:53,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:02:53,360 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-13 13:02:53,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:02:53,503 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-13 13:02:53,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:02:53,510 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-13 13:02:53,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:02:53,717 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-11-13 13:02:53,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:02:53,734 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-13 13:02:53,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:02:53,741 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-13 13:02:53,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:02:54,278 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-11-13 13:02:54,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:02:54,286 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-11-13 13:02:54,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:02:54,297 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-11-13 13:02:54,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:02:54,306 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-11-13 13:02:54,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:02:54,313 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-11-13 13:02:54,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:02:54,329 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-13 13:02:54,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:02:54,339 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-13 13:02:54,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:02:54,347 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-13 13:02:54,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:02:54,353 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2024-11-13 13:02:54,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:02:54,361 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2024-11-13 13:02:54,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:02:54,367 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2024-11-13 13:02:54,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:02:54,374 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2024-11-13 13:02:54,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:02:54,381 INFO L134 CoverageAnalysis]: Checked inductivity of 205 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 205 trivial. 0 not checked. [2024-11-13 13:02:54,381 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 13:02:54,381 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1058498074] [2024-11-13 13:02:54,381 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1058498074] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 13:02:54,381 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 13:02:54,381 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-13 13:02:54,382 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1846290080] [2024-11-13 13:02:54,382 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 13:02:54,382 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-13 13:02:54,382 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 13:02:54,383 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-13 13:02:54,383 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2024-11-13 13:02:54,383 INFO L87 Difference]: Start difference. First operand 169 states and 217 transitions. Second operand has 9 states, 9 states have (on average 6.888888888888889) internal successors, (62), 5 states have internal predecessors, (62), 3 states have call successors, (23), 6 states have call predecessors, (23), 2 states have return successors, (21), 3 states have call predecessors, (21), 3 states have call successors, (21) [2024-11-13 13:02:58,475 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.09s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-13 13:03:02,821 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.34s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-13 13:03:07,156 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.33s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-13 13:03:11,502 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.34s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-13 13:03:21,368 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 13:03:21,368 INFO L93 Difference]: Finished difference Result 327 states and 423 transitions. [2024-11-13 13:03:21,368 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-13 13:03:21,368 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 6.888888888888889) internal successors, (62), 5 states have internal predecessors, (62), 3 states have call successors, (23), 6 states have call predecessors, (23), 2 states have return successors, (21), 3 states have call predecessors, (21), 3 states have call successors, (21) Word has length 155 [2024-11-13 13:03:21,369 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 13:03:21,372 INFO L225 Difference]: With dead ends: 327 [2024-11-13 13:03:21,372 INFO L226 Difference]: Without dead ends: 182 [2024-11-13 13:03:21,373 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 46 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 2.7s TimeCoverageRelationStatistics Valid=52, Invalid=104, Unknown=0, NotChecked=0, Total=156 [2024-11-13 13:03:21,373 INFO L432 NwaCegarLoop]: 80 mSDtfsCounter, 140 mSDsluCounter, 203 mSDsCounter, 0 mSdLazyCounter, 579 mSolverCounterSat, 38 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 24.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 168 SdHoareTripleChecker+Valid, 283 SdHoareTripleChecker+Invalid, 621 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 38 IncrementalHoareTripleChecker+Valid, 579 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 25.7s IncrementalHoareTripleChecker+Time [2024-11-13 13:03:21,374 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [168 Valid, 283 Invalid, 621 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [38 Valid, 579 Invalid, 4 Unknown, 0 Unchecked, 25.7s Time] [2024-11-13 13:03:21,375 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 182 states. [2024-11-13 13:03:21,409 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 182 to 171. [2024-11-13 13:03:21,410 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 171 states, 111 states have (on average 1.2162162162162162) internal successors, (135), 114 states have internal predecessors, (135), 41 states have call successors, (41), 15 states have call predecessors, (41), 18 states have return successors, (44), 41 states have call predecessors, (44), 40 states have call successors, (44) [2024-11-13 13:03:21,411 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 171 states to 171 states and 220 transitions. [2024-11-13 13:03:21,412 INFO L78 Accepts]: Start accepts. Automaton has 171 states and 220 transitions. Word has length 155 [2024-11-13 13:03:21,412 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 13:03:21,413 INFO L471 AbstractCegarLoop]: Abstraction has 171 states and 220 transitions. [2024-11-13 13:03:21,413 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 6.888888888888889) internal successors, (62), 5 states have internal predecessors, (62), 3 states have call successors, (23), 6 states have call predecessors, (23), 2 states have return successors, (21), 3 states have call predecessors, (21), 3 states have call successors, (21) [2024-11-13 13:03:21,413 INFO L276 IsEmpty]: Start isEmpty. Operand 171 states and 220 transitions. [2024-11-13 13:03:21,415 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2024-11-13 13:03:21,415 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 13:03:21,415 INFO L215 NwaCegarLoop]: trace histogram [10, 10, 10, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 13:03:21,415 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-13 13:03:21,416 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 13:03:21,416 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:03:21,416 INFO L85 PathProgramCache]: Analyzing trace with hash -1083815810, now seen corresponding path program 1 times [2024-11-13 13:03:21,416 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 13:03:21,416 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1146855962] [2024-11-13 13:03:21,416 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:03:21,416 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 13:03:25,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:03:27,863 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-13 13:03:27,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:03:27,870 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-11-13 13:03:27,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:03:27,878 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-13 13:03:27,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:03:27,886 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-13 13:03:27,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:03:28,328 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-11-13 13:03:28,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:03:28,573 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-13 13:03:28,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:03:28,583 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-13 13:03:28,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:03:28,684 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-13 13:03:28,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:03:28,689 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-13 13:03:28,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:03:28,817 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-11-13 13:03:28,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:03:28,824 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-13 13:03:28,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:03:28,831 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-13 13:03:28,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:03:29,721 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-13 13:03:29,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:03:30,290 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2024-11-13 13:03:30,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:03:30,296 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-11-13 13:03:30,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:03:30,303 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-11-13 13:03:30,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:03:30,312 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-11-13 13:03:30,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:03:30,320 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-11-13 13:03:30,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:03:30,337 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-13 13:03:30,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:03:30,349 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-13 13:03:30,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:03:30,357 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-13 13:03:30,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:03:30,363 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2024-11-13 13:03:30,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:03:30,370 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2024-11-13 13:03:30,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:03:30,377 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2024-11-13 13:03:30,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:03:30,384 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2024-11-13 13:03:30,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:03:30,391 INFO L134 CoverageAnalysis]: Checked inductivity of 205 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 205 trivial. 0 not checked. [2024-11-13 13:03:30,392 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 13:03:30,392 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1146855962] [2024-11-13 13:03:30,392 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1146855962] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 13:03:30,392 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 13:03:30,392 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-11-13 13:03:30,392 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1273831711] [2024-11-13 13:03:30,392 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 13:03:30,393 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-13 13:03:30,393 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 13:03:30,393 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-13 13:03:30,394 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2024-11-13 13:03:30,394 INFO L87 Difference]: Start difference. First operand 171 states and 220 transitions. Second operand has 11 states, 10 states have (on average 6.6) internal successors, (66), 7 states have internal predecessors, (66), 3 states have call successors, (24), 6 states have call predecessors, (24), 3 states have return successors, (22), 2 states have call predecessors, (22), 3 states have call successors, (22) [2024-11-13 13:03:34,479 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.08s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-13 13:03:38,837 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.36s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-13 13:03:43,181 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.34s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-13 13:03:47,606 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.42s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-13 13:04:02,324 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 13:04:02,324 INFO L93 Difference]: Finished difference Result 329 states and 434 transitions. [2024-11-13 13:04:02,325 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-13 13:04:02,325 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 6.6) internal successors, (66), 7 states have internal predecessors, (66), 3 states have call successors, (24), 6 states have call predecessors, (24), 3 states have return successors, (22), 2 states have call predecessors, (22), 3 states have call successors, (22) Word has length 161 [2024-11-13 13:04:02,325 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 13:04:02,328 INFO L225 Difference]: With dead ends: 329 [2024-11-13 13:04:02,328 INFO L226 Difference]: Without dead ends: 180 [2024-11-13 13:04:02,329 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 49 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 4.5s TimeCoverageRelationStatistics Valid=80, Invalid=226, Unknown=0, NotChecked=0, Total=306 [2024-11-13 13:04:02,330 INFO L432 NwaCegarLoop]: 83 mSDtfsCounter, 363 mSDsluCounter, 376 mSDsCounter, 0 mSdLazyCounter, 918 mSolverCounterSat, 196 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 27.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 374 SdHoareTripleChecker+Valid, 459 SdHoareTripleChecker+Invalid, 1118 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 196 IncrementalHoareTripleChecker+Valid, 918 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 29.3s IncrementalHoareTripleChecker+Time [2024-11-13 13:04:02,330 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [374 Valid, 459 Invalid, 1118 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [196 Valid, 918 Invalid, 4 Unknown, 0 Unchecked, 29.3s Time] [2024-11-13 13:04:02,331 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 180 states. [2024-11-13 13:04:02,350 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 180 to 171. [2024-11-13 13:04:02,350 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 171 states, 111 states have (on average 1.2072072072072073) internal successors, (134), 114 states have internal predecessors, (134), 41 states have call successors, (41), 15 states have call predecessors, (41), 18 states have return successors, (44), 41 states have call predecessors, (44), 40 states have call successors, (44) [2024-11-13 13:04:02,352 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 171 states to 171 states and 219 transitions. [2024-11-13 13:04:02,353 INFO L78 Accepts]: Start accepts. Automaton has 171 states and 219 transitions. Word has length 161 [2024-11-13 13:04:02,353 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 13:04:02,353 INFO L471 AbstractCegarLoop]: Abstraction has 171 states and 219 transitions. [2024-11-13 13:04:02,353 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 6.6) internal successors, (66), 7 states have internal predecessors, (66), 3 states have call successors, (24), 6 states have call predecessors, (24), 3 states have return successors, (22), 2 states have call predecessors, (22), 3 states have call successors, (22) [2024-11-13 13:04:02,354 INFO L276 IsEmpty]: Start isEmpty. Operand 171 states and 219 transitions. [2024-11-13 13:04:02,356 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 169 [2024-11-13 13:04:02,356 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 13:04:02,356 INFO L215 NwaCegarLoop]: trace histogram [10, 10, 10, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 13:04:02,356 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-13 13:04:02,356 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 13:04:02,357 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:04:02,357 INFO L85 PathProgramCache]: Analyzing trace with hash -1014195863, now seen corresponding path program 1 times [2024-11-13 13:04:02,357 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 13:04:02,357 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [669836040] [2024-11-13 13:04:02,357 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:04:02,357 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 13:04:07,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:04:08,399 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-13 13:04:08,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:04:08,411 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-11-13 13:04:08,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:04:08,419 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-13 13:04:08,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:04:08,426 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-13 13:04:08,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:04:08,874 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-11-13 13:04:08,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:04:09,129 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-13 13:04:09,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:04:09,140 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-13 13:04:09,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:04:09,313 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-13 13:04:09,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:04:09,318 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-13 13:04:09,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:04:09,523 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-11-13 13:04:09,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:04:09,530 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-13 13:04:09,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:04:09,535 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-13 13:04:09,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:04:09,551 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-13 13:04:09,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:04:09,567 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-13 13:04:09,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:04:09,574 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-11-13 13:04:09,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:04:09,580 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2024-11-13 13:04:09,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:04:09,588 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2024-11-13 13:04:09,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:04:09,594 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2024-11-13 13:04:09,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:04:09,603 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2024-11-13 13:04:09,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:04:09,624 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-13 13:04:09,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:04:09,636 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-13 13:04:09,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:04:09,643 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-13 13:04:09,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:04:09,650 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2024-11-13 13:04:09,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:04:09,659 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2024-11-13 13:04:09,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:04:10,314 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2024-11-13 13:04:10,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:04:10,321 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2024-11-13 13:04:10,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:04:10,328 INFO L134 CoverageAnalysis]: Checked inductivity of 210 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 207 trivial. 0 not checked. [2024-11-13 13:04:10,329 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 13:04:10,329 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [669836040] [2024-11-13 13:04:10,329 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [669836040] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 13:04:10,329 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 13:04:10,329 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-11-13 13:04:10,329 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [439383104] [2024-11-13 13:04:10,329 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 13:04:10,331 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-13 13:04:10,331 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 13:04:10,331 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-13 13:04:10,332 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2024-11-13 13:04:10,332 INFO L87 Difference]: Start difference. First operand 171 states and 219 transitions. Second operand has 11 states, 10 states have (on average 6.9) internal successors, (69), 6 states have internal predecessors, (69), 4 states have call successors, (25), 7 states have call predecessors, (25), 2 states have return successors, (23), 3 states have call predecessors, (23), 4 states have call successors, (23) [2024-11-13 13:04:14,414 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.08s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-13 13:04:18,747 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.33s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-13 13:04:23,092 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.34s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-13 13:04:27,442 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.35s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-13 13:04:42,521 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 13:04:42,522 INFO L93 Difference]: Finished difference Result 269 states and 350 transitions. [2024-11-13 13:04:42,522 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-13 13:04:42,522 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 6.9) internal successors, (69), 6 states have internal predecessors, (69), 4 states have call successors, (25), 7 states have call predecessors, (25), 2 states have return successors, (23), 3 states have call predecessors, (23), 4 states have call successors, (23) Word has length 168 [2024-11-13 13:04:42,523 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 13:04:42,525 INFO L225 Difference]: With dead ends: 269 [2024-11-13 13:04:42,525 INFO L226 Difference]: Without dead ends: 181 [2024-11-13 13:04:42,525 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 52 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 4.1s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2024-11-13 13:04:42,526 INFO L432 NwaCegarLoop]: 76 mSDtfsCounter, 166 mSDsluCounter, 353 mSDsCounter, 0 mSdLazyCounter, 936 mSolverCounterSat, 71 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 28.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 180 SdHoareTripleChecker+Valid, 429 SdHoareTripleChecker+Invalid, 1011 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 71 IncrementalHoareTripleChecker+Valid, 936 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 30.0s IncrementalHoareTripleChecker+Time [2024-11-13 13:04:42,526 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [180 Valid, 429 Invalid, 1011 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [71 Valid, 936 Invalid, 4 Unknown, 0 Unchecked, 30.0s Time] [2024-11-13 13:04:42,527 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 181 states. [2024-11-13 13:04:42,547 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 181 to 169. [2024-11-13 13:04:42,548 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 169 states, 110 states have (on average 1.2) internal successors, (132), 112 states have internal predecessors, (132), 41 states have call successors, (41), 15 states have call predecessors, (41), 17 states have return successors, (42), 41 states have call predecessors, (42), 40 states have call successors, (42) [2024-11-13 13:04:42,550 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 169 states to 169 states and 215 transitions. [2024-11-13 13:04:42,550 INFO L78 Accepts]: Start accepts. Automaton has 169 states and 215 transitions. Word has length 168 [2024-11-13 13:04:42,551 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 13:04:42,551 INFO L471 AbstractCegarLoop]: Abstraction has 169 states and 215 transitions. [2024-11-13 13:04:42,551 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 6.9) internal successors, (69), 6 states have internal predecessors, (69), 4 states have call successors, (25), 7 states have call predecessors, (25), 2 states have return successors, (23), 3 states have call predecessors, (23), 4 states have call successors, (23) [2024-11-13 13:04:42,552 INFO L276 IsEmpty]: Start isEmpty. Operand 169 states and 215 transitions. [2024-11-13 13:04:42,554 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 170 [2024-11-13 13:04:42,554 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 13:04:42,555 INFO L215 NwaCegarLoop]: trace histogram [10, 10, 10, 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, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 13:04:42,555 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-13 13:04:42,555 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 13:04:42,555 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:04:42,555 INFO L85 PathProgramCache]: Analyzing trace with hash 194666249, now seen corresponding path program 1 times [2024-11-13 13:04:42,556 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 13:04:42,556 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1958977658] [2024-11-13 13:04:42,556 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:04:42,556 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 13:04:47,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:04:49,650 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-13 13:04:49,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:04:49,658 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-11-13 13:04:49,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:04:49,669 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-13 13:04:49,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:04:49,679 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-13 13:04:49,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:04:50,132 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-11-13 13:04:50,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:04:50,438 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-13 13:04:50,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:04:50,453 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-13 13:04:50,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:04:50,680 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-13 13:04:50,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:04:50,688 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-13 13:04:50,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:04:50,921 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-11-13 13:04:50,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:04:50,931 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-13 13:04:50,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:04:50,940 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-13 13:04:51,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:04:51,871 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-13 13:04:51,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:04:51,905 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-13 13:04:51,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:04:51,912 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-11-13 13:04:51,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:04:51,922 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2024-11-13 13:04:51,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:04:51,932 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2024-11-13 13:04:51,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:04:53,066 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2024-11-13 13:04:53,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:04:53,072 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2024-11-13 13:04:53,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:04:53,088 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-13 13:04:53,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:04:53,100 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-13 13:04:53,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:04:53,108 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-13 13:04:53,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:04:53,113 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2024-11-13 13:04:53,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:04:53,118 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2024-11-13 13:04:53,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:04:53,124 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2024-11-13 13:04:53,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:04:53,129 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2024-11-13 13:04:53,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:04:53,133 INFO L134 CoverageAnalysis]: Checked inductivity of 211 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 207 trivial. 0 not checked. [2024-11-13 13:04:53,133 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 13:04:53,134 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1958977658] [2024-11-13 13:04:53,134 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1958977658] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 13:04:53,134 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2023718562] [2024-11-13 13:04:53,134 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:04:53,134 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 13:04:53,134 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc9b47a5-bb84-4ede-afd0-1b6741adaeee/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 13:04:53,137 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc9b47a5-bb84-4ede-afd0-1b6741adaeee/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 13:04:53,138 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc9b47a5-bb84-4ede-afd0-1b6741adaeee/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-13 13:05:00,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:05:00,215 INFO L255 TraceCheckSpWp]: Trace formula consists of 4517 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-11-13 13:05:00,222 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 13:05:02,782 INFO L134 CoverageAnalysis]: Checked inductivity of 211 backedges. 15 proven. 12 refuted. 0 times theorem prover too weak. 184 trivial. 0 not checked. [2024-11-13 13:05:02,783 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 13:05:06,176 INFO L134 CoverageAnalysis]: Checked inductivity of 211 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 211 trivial. 0 not checked. [2024-11-13 13:05:06,179 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2023718562] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-13 13:05:06,180 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2024-11-13 13:05:06,180 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [14, 8] total 22 [2024-11-13 13:05:06,180 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1122239408] [2024-11-13 13:05:06,180 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 13:05:06,181 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-13 13:05:06,181 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 13:05:06,181 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-13 13:05:06,182 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=414, Unknown=0, NotChecked=0, Total=462 [2024-11-13 13:05:06,182 INFO L87 Difference]: Start difference. First operand 169 states and 215 transitions. Second operand has 5 states, 4 states have (on average 16.5) internal successors, (66), 4 states have internal predecessors, (66), 2 states have call successors, (25), 2 states have call predecessors, (25), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) [2024-11-13 13:05:06,924 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 13:05:06,924 INFO L93 Difference]: Finished difference Result 177 states and 223 transitions. [2024-11-13 13:05:06,924 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-13 13:05:06,925 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 16.5) internal successors, (66), 4 states have internal predecessors, (66), 2 states have call successors, (25), 2 states have call predecessors, (25), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) Word has length 169 [2024-11-13 13:05:06,925 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 13:05:06,927 INFO L225 Difference]: With dead ends: 177 [2024-11-13 13:05:06,927 INFO L226 Difference]: Without dead ends: 175 [2024-11-13 13:05:06,928 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 397 GetRequests, 376 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 53 ImplicationChecksByTransitivity, 6.5s TimeCoverageRelationStatistics Valid=52, Invalid=454, Unknown=0, NotChecked=0, Total=506 [2024-11-13 13:05:06,929 INFO L432 NwaCegarLoop]: 198 mSDtfsCounter, 3 mSDsluCounter, 583 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 781 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-13 13:05:06,929 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 781 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-13 13:05:06,930 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 175 states. [2024-11-13 13:05:06,956 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 175 to 174. [2024-11-13 13:05:06,957 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 174 states, 113 states have (on average 1.1946902654867257) internal successors, (135), 116 states have internal predecessors, (135), 42 states have call successors, (42), 16 states have call predecessors, (42), 18 states have return successors, (43), 41 states have call predecessors, (43), 41 states have call successors, (43) [2024-11-13 13:05:06,959 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 174 states to 174 states and 220 transitions. [2024-11-13 13:05:06,960 INFO L78 Accepts]: Start accepts. Automaton has 174 states and 220 transitions. Word has length 169 [2024-11-13 13:05:06,960 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 13:05:06,960 INFO L471 AbstractCegarLoop]: Abstraction has 174 states and 220 transitions. [2024-11-13 13:05:06,961 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 16.5) internal successors, (66), 4 states have internal predecessors, (66), 2 states have call successors, (25), 2 states have call predecessors, (25), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) [2024-11-13 13:05:06,961 INFO L276 IsEmpty]: Start isEmpty. Operand 174 states and 220 transitions. [2024-11-13 13:05:06,964 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 170 [2024-11-13 13:05:06,964 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 13:05:06,964 INFO L215 NwaCegarLoop]: trace histogram [10, 10, 10, 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, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 13:05:06,991 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc9b47a5-bb84-4ede-afd0-1b6741adaeee/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-13 13:05:07,164 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc9b47a5-bb84-4ede-afd0-1b6741adaeee/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2024-11-13 13:05:07,165 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 13:05:07,165 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:05:07,165 INFO L85 PathProgramCache]: Analyzing trace with hash 196513291, now seen corresponding path program 1 times [2024-11-13 13:05:07,165 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 13:05:07,165 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1660398297] [2024-11-13 13:05:07,165 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:05:07,166 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 13:05:12,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:05:13,556 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-13 13:05:13,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:05:13,561 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-11-13 13:05:13,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:05:13,566 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-13 13:05:13,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:05:13,572 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-13 13:05:13,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:05:13,948 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-11-13 13:05:13,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:05:14,188 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-13 13:05:14,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:05:14,200 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-13 13:05:14,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:05:14,360 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-13 13:05:14,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:05:14,365 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-13 13:05:14,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:05:14,564 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-11-13 13:05:14,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:05:14,571 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-13 13:05:14,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:05:14,579 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-13 13:05:14,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:05:14,597 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-13 13:05:14,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:05:14,607 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-13 13:05:14,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:05:14,611 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-11-13 13:05:14,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:05:14,616 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2024-11-13 13:05:14,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:05:14,620 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2024-11-13 13:05:14,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:05:14,625 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2024-11-13 13:05:14,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:05:14,629 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2024-11-13 13:05:14,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:05:14,642 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-13 13:05:14,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:05:14,654 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-13 13:05:14,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:05:14,659 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-13 13:05:14,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:05:14,664 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2024-11-13 13:05:14,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:05:14,670 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2024-11-13 13:05:14,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:05:14,677 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2024-11-13 13:05:14,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:05:14,683 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2024-11-13 13:05:14,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:05:14,692 INFO L134 CoverageAnalysis]: Checked inductivity of 211 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 211 trivial. 0 not checked. [2024-11-13 13:05:14,693 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 13:05:14,693 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1660398297] [2024-11-13 13:05:14,693 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1660398297] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 13:05:14,693 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 13:05:14,693 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-13 13:05:14,693 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1056064040] [2024-11-13 13:05:14,693 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 13:05:14,694 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-13 13:05:14,694 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 13:05:14,694 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-13 13:05:14,694 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2024-11-13 13:05:14,695 INFO L87 Difference]: Start difference. First operand 174 states and 220 transitions. Second operand has 9 states, 9 states have (on average 7.333333333333333) internal successors, (66), 5 states have internal predecessors, (66), 3 states have call successors, (25), 6 states have call predecessors, (25), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2024-11-13 13:05:18,748 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-13 13:05:23,166 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.42s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-13 13:05:27,538 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.37s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-13 13:05:31,917 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.38s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-13 13:05:41,797 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 13:05:41,797 INFO L93 Difference]: Finished difference Result 269 states and 347 transitions. [2024-11-13 13:05:41,798 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-13 13:05:41,798 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 7.333333333333333) internal successors, (66), 5 states have internal predecessors, (66), 3 states have call successors, (25), 6 states have call predecessors, (25), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) Word has length 169 [2024-11-13 13:05:41,799 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 13:05:41,801 INFO L225 Difference]: With dead ends: 269 [2024-11-13 13:05:41,801 INFO L226 Difference]: Without dead ends: 195 [2024-11-13 13:05:41,802 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 51 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 3.1s TimeCoverageRelationStatistics Valid=75, Invalid=135, Unknown=0, NotChecked=0, Total=210 [2024-11-13 13:05:41,802 INFO L432 NwaCegarLoop]: 83 mSDtfsCounter, 215 mSDsluCounter, 217 mSDsCounter, 0 mSdLazyCounter, 532 mSolverCounterSat, 114 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 23.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 228 SdHoareTripleChecker+Valid, 300 SdHoareTripleChecker+Invalid, 650 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 114 IncrementalHoareTripleChecker+Valid, 532 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 25.1s IncrementalHoareTripleChecker+Time [2024-11-13 13:05:41,802 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [228 Valid, 300 Invalid, 650 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [114 Valid, 532 Invalid, 4 Unknown, 0 Unchecked, 25.1s Time] [2024-11-13 13:05:41,803 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 195 states. [2024-11-13 13:05:41,819 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 195 to 177. [2024-11-13 13:05:41,819 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 177 states, 115 states have (on average 1.191304347826087) internal successors, (137), 118 states have internal predecessors, (137), 43 states have call successors, (43), 16 states have call predecessors, (43), 18 states have return successors, (44), 42 states have call predecessors, (44), 42 states have call successors, (44) [2024-11-13 13:05:41,821 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 177 states to 177 states and 224 transitions. [2024-11-13 13:05:41,821 INFO L78 Accepts]: Start accepts. Automaton has 177 states and 224 transitions. Word has length 169 [2024-11-13 13:05:41,822 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 13:05:41,822 INFO L471 AbstractCegarLoop]: Abstraction has 177 states and 224 transitions. [2024-11-13 13:05:41,822 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 7.333333333333333) internal successors, (66), 5 states have internal predecessors, (66), 3 states have call successors, (25), 6 states have call predecessors, (25), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2024-11-13 13:05:41,822 INFO L276 IsEmpty]: Start isEmpty. Operand 177 states and 224 transitions. [2024-11-13 13:05:41,824 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 170 [2024-11-13 13:05:41,824 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 13:05:41,825 INFO L215 NwaCegarLoop]: trace histogram [10, 10, 10, 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, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 13:05:41,825 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-13 13:05:41,825 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 13:05:41,825 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:05:41,825 INFO L85 PathProgramCache]: Analyzing trace with hash 454678729, now seen corresponding path program 1 times [2024-11-13 13:05:41,825 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 13:05:41,826 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [672065073] [2024-11-13 13:05:41,826 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:05:41,826 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 13:05:46,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:05:48,897 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-13 13:05:48,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:05:48,906 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-11-13 13:05:48,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:05:48,916 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-13 13:05:48,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:05:48,926 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-13 13:05:48,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:05:49,395 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-11-13 13:05:49,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:05:49,709 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-13 13:05:49,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:05:49,722 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-13 13:05:49,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:05:49,881 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-13 13:05:49,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:05:49,887 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-13 13:05:49,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:05:50,094 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-11-13 13:05:50,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:05:50,110 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-13 13:05:50,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:05:50,115 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-13 13:05:50,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:05:50,936 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-13 13:05:50,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:05:50,956 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-13 13:05:50,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:05:50,964 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-11-13 13:05:50,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:05:50,974 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2024-11-13 13:05:50,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:05:50,983 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2024-11-13 13:05:50,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:05:51,859 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2024-11-13 13:05:51,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:05:51,867 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2024-11-13 13:05:51,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:05:51,879 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-13 13:05:51,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:05:51,887 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-13 13:05:51,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:05:51,894 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-13 13:05:51,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:05:51,899 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2024-11-13 13:05:51,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:05:51,904 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2024-11-13 13:05:51,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:05:51,908 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2024-11-13 13:05:51,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:05:51,914 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2024-11-13 13:05:51,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:05:51,921 INFO L134 CoverageAnalysis]: Checked inductivity of 211 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 207 trivial. 0 not checked. [2024-11-13 13:05:51,922 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 13:05:51,922 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [672065073] [2024-11-13 13:05:51,922 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [672065073] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 13:05:51,922 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2138774680] [2024-11-13 13:05:51,922 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:05:51,922 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 13:05:51,922 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc9b47a5-bb84-4ede-afd0-1b6741adaeee/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 13:05:51,924 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc9b47a5-bb84-4ede-afd0-1b6741adaeee/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 13:05:51,926 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc9b47a5-bb84-4ede-afd0-1b6741adaeee/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-13 13:05:58,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:05:58,862 INFO L255 TraceCheckSpWp]: Trace formula consists of 4523 conjuncts, 24 conjuncts are in the unsatisfiable core [2024-11-13 13:05:58,869 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 13:06:03,101 INFO L134 CoverageAnalysis]: Checked inductivity of 211 backedges. 39 proven. 9 refuted. 0 times theorem prover too weak. 163 trivial. 0 not checked. [2024-11-13 13:06:03,102 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 13:06:08,812 INFO L134 CoverageAnalysis]: Checked inductivity of 211 backedges. 27 proven. 0 refuted. 0 times theorem prover too weak. 184 trivial. 0 not checked. [2024-11-13 13:06:08,812 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2138774680] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-13 13:06:08,812 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2024-11-13 13:06:08,813 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [14, 10] total 27 [2024-11-13 13:06:08,813 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1075790381] [2024-11-13 13:06:08,813 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 13:06:08,813 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-13 13:06:08,813 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 13:06:08,814 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-13 13:06:08,815 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=64, Invalid=638, Unknown=0, NotChecked=0, Total=702 [2024-11-13 13:06:08,815 INFO L87 Difference]: Start difference. First operand 177 states and 224 transitions. Second operand has 9 states, 7 states have (on average 9.857142857142858) internal successors, (69), 8 states have internal predecessors, (69), 3 states have call successors, (25), 2 states have call predecessors, (25), 2 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2024-11-13 13:06:12,531 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 13:06:12,531 INFO L93 Difference]: Finished difference Result 192 states and 242 transitions. [2024-11-13 13:06:12,532 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-13 13:06:12,532 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 7 states have (on average 9.857142857142858) internal successors, (69), 8 states have internal predecessors, (69), 3 states have call successors, (25), 2 states have call predecessors, (25), 2 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) Word has length 169 [2024-11-13 13:06:12,533 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 13:06:12,535 INFO L225 Difference]: With dead ends: 192 [2024-11-13 13:06:12,535 INFO L226 Difference]: Without dead ends: 190 [2024-11-13 13:06:12,536 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 398 GetRequests, 370 SyntacticMatches, 1 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 83 ImplicationChecksByTransitivity, 9.7s TimeCoverageRelationStatistics Valid=73, Invalid=739, Unknown=0, NotChecked=0, Total=812 [2024-11-13 13:06:12,537 INFO L432 NwaCegarLoop]: 194 mSDtfsCounter, 15 mSDsluCounter, 889 mSDsCounter, 0 mSdLazyCounter, 183 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 19 SdHoareTripleChecker+Valid, 1083 SdHoareTripleChecker+Invalid, 189 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 183 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.9s IncrementalHoareTripleChecker+Time [2024-11-13 13:06:12,537 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [19 Valid, 1083 Invalid, 189 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 183 Invalid, 0 Unknown, 0 Unchecked, 2.9s Time] [2024-11-13 13:06:12,539 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 190 states. [2024-11-13 13:06:12,566 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 190 to 176. [2024-11-13 13:06:12,567 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 176 states, 115 states have (on average 1.191304347826087) internal successors, (137), 117 states have internal predecessors, (137), 42 states have call successors, (42), 16 states have call predecessors, (42), 18 states have return successors, (43), 42 states have call predecessors, (43), 41 states have call successors, (43) [2024-11-13 13:06:12,569 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 176 states to 176 states and 222 transitions. [2024-11-13 13:06:12,570 INFO L78 Accepts]: Start accepts. Automaton has 176 states and 222 transitions. Word has length 169 [2024-11-13 13:06:12,570 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 13:06:12,570 INFO L471 AbstractCegarLoop]: Abstraction has 176 states and 222 transitions. [2024-11-13 13:06:12,571 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 7 states have (on average 9.857142857142858) internal successors, (69), 8 states have internal predecessors, (69), 3 states have call successors, (25), 2 states have call predecessors, (25), 2 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2024-11-13 13:06:12,571 INFO L276 IsEmpty]: Start isEmpty. Operand 176 states and 222 transitions. [2024-11-13 13:06:12,577 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 176 [2024-11-13 13:06:12,577 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 13:06:12,578 INFO L215 NwaCegarLoop]: trace histogram [10, 10, 10, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 13:06:12,621 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc9b47a5-bb84-4ede-afd0-1b6741adaeee/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-13 13:06:12,778 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc9b47a5-bb84-4ede-afd0-1b6741adaeee/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 13:06:12,778 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 13:06:12,778 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:06:12,779 INFO L85 PathProgramCache]: Analyzing trace with hash 949272445, now seen corresponding path program 1 times [2024-11-13 13:06:12,779 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 13:06:12,779 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1492671250] [2024-11-13 13:06:12,779 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:06:12,779 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 13:06:18,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:06:20,773 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-13 13:06:20,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:06:20,782 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-11-13 13:06:20,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:06:20,794 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-13 13:06:20,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:06:20,801 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-13 13:06:20,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:06:21,214 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-11-13 13:06:21,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:06:21,476 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-13 13:06:21,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:06:21,487 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-13 13:06:21,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:06:21,666 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-13 13:06:21,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:06:21,671 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-13 13:06:21,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:06:21,884 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-11-13 13:06:21,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:06:21,899 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-13 13:06:21,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:06:21,905 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-13 13:06:21,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:06:22,650 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-13 13:06:22,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:06:22,669 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-13 13:06:22,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:06:22,673 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-11-13 13:06:22,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:06:22,681 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2024-11-13 13:06:22,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:06:22,688 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2024-11-13 13:06:22,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:06:23,604 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2024-11-13 13:06:23,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:06:23,609 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2024-11-13 13:06:23,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:06:23,623 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-13 13:06:23,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:06:23,632 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-13 13:06:23,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:06:23,638 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-13 13:06:23,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:06:23,644 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2024-11-13 13:06:23,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:06:23,649 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2024-11-13 13:06:23,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:06:23,656 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2024-11-13 13:06:23,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:06:23,662 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2024-11-13 13:06:23,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:06:23,669 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 165 [2024-11-13 13:06:23,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:06:23,675 INFO L134 CoverageAnalysis]: Checked inductivity of 213 backedges. 2 proven. 4 refuted. 0 times theorem prover too weak. 207 trivial. 0 not checked. [2024-11-13 13:06:23,675 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 13:06:23,676 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1492671250] [2024-11-13 13:06:23,676 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1492671250] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 13:06:23,676 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1216795019] [2024-11-13 13:06:23,676 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:06:23,676 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 13:06:23,676 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc9b47a5-bb84-4ede-afd0-1b6741adaeee/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 13:06:23,678 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc9b47a5-bb84-4ede-afd0-1b6741adaeee/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 13:06:23,682 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc9b47a5-bb84-4ede-afd0-1b6741adaeee/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-13 13:06:31,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:06:31,338 INFO L255 TraceCheckSpWp]: Trace formula consists of 4528 conjuncts, 25 conjuncts are in the unsatisfiable core [2024-11-13 13:06:31,344 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 13:06:32,501 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 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 [2024-11-13 13:06:42,322 INFO L134 CoverageAnalysis]: Checked inductivity of 213 backedges. 149 proven. 0 refuted. 0 times theorem prover too weak. 64 trivial. 0 not checked. [2024-11-13 13:06:42,322 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-13 13:06:42,322 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1216795019] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 13:06:42,322 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-13 13:06:42,322 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [14] total 23 [2024-11-13 13:06:42,323 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1596354320] [2024-11-13 13:06:42,323 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 13:06:42,323 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-13 13:06:42,323 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 13:06:42,324 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-13 13:06:42,324 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=449, Unknown=0, NotChecked=0, Total=506 [2024-11-13 13:06:42,324 INFO L87 Difference]: Start difference. First operand 176 states and 222 transitions. Second operand has 11 states, 10 states have (on average 9.3) internal successors, (93), 10 states have internal predecessors, (93), 6 states have call successors, (29), 4 states have call predecessors, (29), 4 states have return successors, (27), 5 states have call predecessors, (27), 6 states have call successors, (27) [2024-11-13 13:06:46,398 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-13 13:06:51,147 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-13 13:06:55,269 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-13 13:06:59,710 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-13 13:07:10,408 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 13:07:10,408 INFO L93 Difference]: Finished difference Result 403 states and 498 transitions. [2024-11-13 13:07:10,409 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-13 13:07:10,409 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 9.3) internal successors, (93), 10 states have internal predecessors, (93), 6 states have call successors, (29), 4 states have call predecessors, (29), 4 states have return successors, (27), 5 states have call predecessors, (27), 6 states have call successors, (27) Word has length 175 [2024-11-13 13:07:10,409 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 13:07:10,411 INFO L225 Difference]: With dead ends: 403 [2024-11-13 13:07:10,411 INFO L226 Difference]: Without dead ends: 248 [2024-11-13 13:07:10,413 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 246 GetRequests, 206 SyntacticMatches, 10 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 195 ImplicationChecksByTransitivity, 13.4s TimeCoverageRelationStatistics Valid=124, Invalid=868, Unknown=0, NotChecked=0, Total=992 [2024-11-13 13:07:10,414 INFO L432 NwaCegarLoop]: 213 mSDtfsCounter, 265 mSDsluCounter, 1125 mSDsCounter, 0 mSdLazyCounter, 596 mSolverCounterSat, 127 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 25.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 265 SdHoareTripleChecker+Valid, 1338 SdHoareTripleChecker+Invalid, 727 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 127 IncrementalHoareTripleChecker+Valid, 596 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 25.2s IncrementalHoareTripleChecker+Time [2024-11-13 13:07:10,414 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [265 Valid, 1338 Invalid, 727 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [127 Valid, 596 Invalid, 4 Unknown, 0 Unchecked, 25.2s Time] [2024-11-13 13:07:10,415 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 248 states. [2024-11-13 13:07:10,448 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 248 to 244. [2024-11-13 13:07:10,449 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 244 states, 164 states have (on average 1.1646341463414633) internal successors, (191), 166 states have internal predecessors, (191), 50 states have call successors, (50), 26 states have call predecessors, (50), 29 states have return successors, (52), 51 states have call predecessors, (52), 49 states have call successors, (52) [2024-11-13 13:07:10,450 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 244 states to 244 states and 293 transitions. [2024-11-13 13:07:10,451 INFO L78 Accepts]: Start accepts. Automaton has 244 states and 293 transitions. Word has length 175 [2024-11-13 13:07:10,452 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 13:07:10,452 INFO L471 AbstractCegarLoop]: Abstraction has 244 states and 293 transitions. [2024-11-13 13:07:10,452 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 9.3) internal successors, (93), 10 states have internal predecessors, (93), 6 states have call successors, (29), 4 states have call predecessors, (29), 4 states have return successors, (27), 5 states have call predecessors, (27), 6 states have call successors, (27) [2024-11-13 13:07:10,452 INFO L276 IsEmpty]: Start isEmpty. Operand 244 states and 293 transitions. [2024-11-13 13:07:10,454 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 194 [2024-11-13 13:07:10,454 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 13:07:10,454 INFO L215 NwaCegarLoop]: trace histogram [10, 10, 10, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2024-11-13 13:07:10,483 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc9b47a5-bb84-4ede-afd0-1b6741adaeee/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-11-13 13:07:10,655 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc9b47a5-bb84-4ede-afd0-1b6741adaeee/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2024-11-13 13:07:10,655 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 13:07:10,655 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:07:10,656 INFO L85 PathProgramCache]: Analyzing trace with hash -1783631367, now seen corresponding path program 1 times [2024-11-13 13:07:10,656 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 13:07:10,656 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1906713225] [2024-11-13 13:07:10,656 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:07:10,656 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 13:07:15,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:07:21,599 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-13 13:07:21,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:07:21,606 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-11-13 13:07:21,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:07:21,614 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-13 13:07:21,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:07:21,621 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-13 13:07:21,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:07:22,102 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-11-13 13:07:22,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:07:22,442 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-13 13:07:22,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:07:22,452 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-13 13:07:22,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:07:22,688 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-13 13:07:22,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:07:22,694 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-13 13:07:22,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:07:22,977 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-11-13 13:07:22,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:07:23,291 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-13 13:07:23,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:07:23,295 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-13 13:07:23,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:07:23,318 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-13 13:07:23,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:07:23,333 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-13 13:07:23,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:07:23,341 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-11-13 13:07:23,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:07:23,351 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2024-11-13 13:07:23,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:07:23,358 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2024-11-13 13:07:23,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:07:23,371 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-13 13:07:23,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:07:23,381 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2024-11-13 13:07:23,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:07:23,389 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2024-11-13 13:07:23,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:07:23,408 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-13 13:07:23,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:07:23,417 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-13 13:07:23,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:07:23,423 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-13 13:07:23,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:07:23,430 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2024-11-13 13:07:23,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:07:23,438 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2024-11-13 13:07:23,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:07:24,613 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-13 13:07:24,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:07:26,458 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2024-11-13 13:07:26,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:07:26,463 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 176 [2024-11-13 13:07:26,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:07:26,468 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2024-11-13 13:07:26,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:07:26,473 INFO L134 CoverageAnalysis]: Checked inductivity of 236 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 216 trivial. 0 not checked. [2024-11-13 13:07:26,473 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 13:07:26,473 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1906713225] [2024-11-13 13:07:26,473 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1906713225] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 13:07:26,473 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 13:07:26,473 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [] total 20 [2024-11-13 13:07:26,473 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [181705423] [2024-11-13 13:07:26,474 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 13:07:26,474 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2024-11-13 13:07:26,474 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 13:07:26,475 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2024-11-13 13:07:26,475 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=336, Unknown=0, NotChecked=0, Total=380 [2024-11-13 13:07:26,475 INFO L87 Difference]: Start difference. First operand 244 states and 293 transitions. Second operand has 20 states, 18 states have (on average 4.611111111111111) internal successors, (83), 14 states have internal predecessors, (83), 7 states have call successors, (28), 7 states have call predecessors, (28), 4 states have return successors, (26), 7 states have call predecessors, (26), 7 states have call successors, (26) [2024-11-13 13:07:30,544 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-13 13:07:34,992 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.45s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-13 13:07:39,370 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.38s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-13 13:07:43,835 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.46s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-13 13:08:23,851 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 13:08:23,851 INFO L93 Difference]: Finished difference Result 432 states and 538 transitions. [2024-11-13 13:08:23,852 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2024-11-13 13:08:23,852 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 18 states have (on average 4.611111111111111) internal successors, (83), 14 states have internal predecessors, (83), 7 states have call successors, (28), 7 states have call predecessors, (28), 4 states have return successors, (26), 7 states have call predecessors, (26), 7 states have call successors, (26) Word has length 193 [2024-11-13 13:08:23,853 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 13:08:23,855 INFO L225 Difference]: With dead ends: 432 [2024-11-13 13:08:23,855 INFO L226 Difference]: Without dead ends: 267 [2024-11-13 13:08:23,856 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 92 GetRequests, 59 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 142 ImplicationChecksByTransitivity, 12.7s TimeCoverageRelationStatistics Valid=187, Invalid=1003, Unknown=0, NotChecked=0, Total=1190 [2024-11-13 13:08:23,857 INFO L432 NwaCegarLoop]: 73 mSDtfsCounter, 337 mSDsluCounter, 627 mSDsCounter, 0 mSdLazyCounter, 2241 mSolverCounterSat, 156 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 47.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 345 SdHoareTripleChecker+Valid, 700 SdHoareTripleChecker+Invalid, 2401 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 156 IncrementalHoareTripleChecker+Valid, 2241 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 49.4s IncrementalHoareTripleChecker+Time [2024-11-13 13:08:23,857 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [345 Valid, 700 Invalid, 2401 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [156 Valid, 2241 Invalid, 4 Unknown, 0 Unchecked, 49.4s Time] [2024-11-13 13:08:23,858 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 267 states. [2024-11-13 13:08:23,891 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 267 to 244. [2024-11-13 13:08:23,891 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 244 states, 164 states have (on average 1.1585365853658536) internal successors, (190), 166 states have internal predecessors, (190), 50 states have call successors, (50), 26 states have call predecessors, (50), 29 states have return successors, (52), 51 states have call predecessors, (52), 49 states have call successors, (52) [2024-11-13 13:08:23,892 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 244 states to 244 states and 292 transitions. [2024-11-13 13:08:23,893 INFO L78 Accepts]: Start accepts. Automaton has 244 states and 292 transitions. Word has length 193 [2024-11-13 13:08:23,894 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 13:08:23,894 INFO L471 AbstractCegarLoop]: Abstraction has 244 states and 292 transitions. [2024-11-13 13:08:23,894 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 18 states have (on average 4.611111111111111) internal successors, (83), 14 states have internal predecessors, (83), 7 states have call successors, (28), 7 states have call predecessors, (28), 4 states have return successors, (26), 7 states have call predecessors, (26), 7 states have call successors, (26) [2024-11-13 13:08:23,894 INFO L276 IsEmpty]: Start isEmpty. Operand 244 states and 292 transitions. [2024-11-13 13:08:23,895 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 194 [2024-11-13 13:08:23,895 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 13:08:23,896 INFO L215 NwaCegarLoop]: trace histogram [10, 10, 10, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2024-11-13 13:08:23,896 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-13 13:08:23,896 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 13:08:23,896 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:08:23,896 INFO L85 PathProgramCache]: Analyzing trace with hash 1444255673, now seen corresponding path program 1 times [2024-11-13 13:08:23,896 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 13:08:23,897 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2056200264] [2024-11-13 13:08:23,897 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:08:23,897 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 13:08:28,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:08:30,318 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-13 13:08:30,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:08:30,322 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-11-13 13:08:30,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:08:30,327 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-13 13:08:30,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:08:30,333 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-13 13:08:30,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:08:30,698 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-11-13 13:08:30,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:08:30,903 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-13 13:08:30,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:08:30,915 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-13 13:08:30,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:08:31,012 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-13 13:08:31,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:08:31,018 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-13 13:08:31,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:08:31,172 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-11-13 13:08:31,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:08:31,180 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-13 13:08:31,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:08:31,185 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-13 13:08:31,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:08:31,207 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-13 13:08:31,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:08:31,226 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-13 13:08:31,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:08:31,234 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-11-13 13:08:31,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:08:31,241 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2024-11-13 13:08:31,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:08:31,248 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2024-11-13 13:08:31,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:08:31,735 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-13 13:08:31,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:08:32,403 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2024-11-13 13:08:32,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:08:32,413 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2024-11-13 13:08:32,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:08:32,429 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-13 13:08:32,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:08:32,439 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-13 13:08:32,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:08:32,446 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-13 13:08:32,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:08:32,451 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2024-11-13 13:08:32,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:08:32,457 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2024-11-13 13:08:32,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:08:32,464 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-13 13:08:32,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:08:32,469 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2024-11-13 13:08:32,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:08:32,476 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 176 [2024-11-13 13:08:32,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:08:32,481 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2024-11-13 13:08:32,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:08:32,486 INFO L134 CoverageAnalysis]: Checked inductivity of 236 backedges. 8 proven. 11 refuted. 0 times theorem prover too weak. 217 trivial. 0 not checked. [2024-11-13 13:08:32,486 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 13:08:32,486 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2056200264] [2024-11-13 13:08:32,487 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2056200264] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 13:08:32,487 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [717112092] [2024-11-13 13:08:32,487 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:08:32,487 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 13:08:32,487 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc9b47a5-bb84-4ede-afd0-1b6741adaeee/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 13:08:32,490 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc9b47a5-bb84-4ede-afd0-1b6741adaeee/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 13:08:32,493 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc9b47a5-bb84-4ede-afd0-1b6741adaeee/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-13 13:08:40,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:08:40,598 INFO L255 TraceCheckSpWp]: Trace formula consists of 4572 conjuncts, 19 conjuncts are in the unsatisfiable core [2024-11-13 13:08:40,607 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 13:08:45,497 WARN L873 $PredicateComparison]: unable to prove that (or (exists ((aws_hash_iter_is_valid_~iter.offset Int) (aws_hash_iter_is_valid_~iter.base Int)) (not (= (select (select |c_#memory_$Pointer$#4.offset| aws_hash_iter_is_valid_~iter.base) aws_hash_iter_is_valid_~iter.offset) 0))) (exists ((aws_hash_iter_is_valid_~iter.offset Int) (aws_hash_iter_is_valid_~iter.base Int)) (not (= (select (select |c_#memory_$Pointer$#4.base| aws_hash_iter_is_valid_~iter.base) aws_hash_iter_is_valid_~iter.offset) 0)))) is different from true [2024-11-13 13:08:51,486 INFO L134 CoverageAnalysis]: Checked inductivity of 236 backedges. 83 proven. 0 refuted. 0 times theorem prover too weak. 153 trivial. 0 not checked. [2024-11-13 13:08:51,486 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-13 13:08:51,486 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [717112092] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 13:08:51,486 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-13 13:08:51,486 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [10] total 14 [2024-11-13 13:08:51,487 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1804682490] [2024-11-13 13:08:51,487 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 13:08:51,487 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-13 13:08:51,487 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 13:08:51,488 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-13 13:08:51,488 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=124, Unknown=2, NotChecked=22, Total=182 [2024-11-13 13:08:51,488 INFO L87 Difference]: Start difference. First operand 244 states and 292 transitions. Second operand has 7 states, 6 states have (on average 14.166666666666666) internal successors, (85), 6 states have internal predecessors, (85), 3 states have call successors, (28), 3 states have call predecessors, (28), 3 states have return successors, (26), 2 states have call predecessors, (26), 3 states have call successors, (26) [2024-11-13 13:08:55,607 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-13 13:08:59,610 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-13 13:09:01,163 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 13:09:01,164 INFO L93 Difference]: Finished difference Result 399 states and 487 transitions. [2024-11-13 13:09:01,164 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-13 13:09:01,164 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 14.166666666666666) internal successors, (85), 6 states have internal predecessors, (85), 3 states have call successors, (28), 3 states have call predecessors, (28), 3 states have return successors, (26), 2 states have call predecessors, (26), 3 states have call successors, (26) Word has length 193 [2024-11-13 13:09:01,165 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 13:09:01,166 INFO L225 Difference]: With dead ends: 399 [2024-11-13 13:09:01,166 INFO L226 Difference]: Without dead ends: 239 [2024-11-13 13:09:01,167 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 257 GetRequests, 244 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 11.5s TimeCoverageRelationStatistics Valid=40, Invalid=144, Unknown=2, NotChecked=24, Total=210 [2024-11-13 13:09:01,168 INFO L432 NwaCegarLoop]: 204 mSDtfsCounter, 3 mSDsluCounter, 764 mSDsCounter, 0 mSdLazyCounter, 62 mSolverCounterSat, 0 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 968 SdHoareTripleChecker+Invalid, 277 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 62 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 213 IncrementalHoareTripleChecker+Unchecked, 9.3s IncrementalHoareTripleChecker+Time [2024-11-13 13:09:01,168 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 968 Invalid, 277 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 62 Invalid, 2 Unknown, 213 Unchecked, 9.3s Time] [2024-11-13 13:09:01,169 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 239 states. [2024-11-13 13:09:01,249 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 239 to 237. [2024-11-13 13:09:01,250 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 237 states, 159 states have (on average 1.150943396226415) internal successors, (183), 160 states have internal predecessors, (183), 49 states have call successors, (49), 26 states have call predecessors, (49), 28 states have return successors, (50), 50 states have call predecessors, (50), 48 states have call successors, (50) [2024-11-13 13:09:01,251 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 237 states to 237 states and 282 transitions. [2024-11-13 13:09:01,252 INFO L78 Accepts]: Start accepts. Automaton has 237 states and 282 transitions. Word has length 193 [2024-11-13 13:09:01,252 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 13:09:01,253 INFO L471 AbstractCegarLoop]: Abstraction has 237 states and 282 transitions. [2024-11-13 13:09:01,253 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 14.166666666666666) internal successors, (85), 6 states have internal predecessors, (85), 3 states have call successors, (28), 3 states have call predecessors, (28), 3 states have return successors, (26), 2 states have call predecessors, (26), 3 states have call successors, (26) [2024-11-13 13:09:01,253 INFO L276 IsEmpty]: Start isEmpty. Operand 237 states and 282 transitions. [2024-11-13 13:09:01,255 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 220 [2024-11-13 13:09:01,255 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 13:09:01,255 INFO L215 NwaCegarLoop]: trace histogram [10, 10, 10, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2024-11-13 13:09:01,293 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc9b47a5-bb84-4ede-afd0-1b6741adaeee/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-11-13 13:09:01,455 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc9b47a5-bb84-4ede-afd0-1b6741adaeee/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2024-11-13 13:09:01,456 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 13:09:01,456 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:09:01,456 INFO L85 PathProgramCache]: Analyzing trace with hash 648120209, now seen corresponding path program 1 times [2024-11-13 13:09:01,456 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 13:09:01,456 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1214761834] [2024-11-13 13:09:01,456 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:09:01,456 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 13:09:06,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:09:09,335 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-13 13:09:09,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:09:09,340 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-11-13 13:09:09,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:09:09,346 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-13 13:09:09,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:09:09,356 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-13 13:09:09,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:09:09,753 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-11-13 13:09:09,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:09:09,976 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-13 13:09:09,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:09:09,990 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-13 13:09:09,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:09:10,149 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-13 13:09:10,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:09:10,159 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-13 13:09:10,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:09:10,386 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-11-13 13:09:10,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:09:10,396 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-13 13:09:10,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:09:10,403 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-13 13:09:10,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:09:10,421 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-13 13:09:10,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:09:10,431 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-13 13:09:10,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:09:10,435 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-11-13 13:09:10,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:09:10,439 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2024-11-13 13:09:10,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:09:10,443 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2024-11-13 13:09:10,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:09:10,665 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-13 13:09:10,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:09:10,679 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-13 13:09:10,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:09:10,691 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-13 13:09:10,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:09:10,696 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2024-11-13 13:09:10,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:09:11,175 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2024-11-13 13:09:11,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:09:11,206 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-13 13:09:11,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:09:11,226 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-13 13:09:11,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:09:11,238 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-13 13:09:11,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:09:11,243 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2024-11-13 13:09:11,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:09:11,248 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2024-11-13 13:09:11,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:09:11,262 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-13 13:09:11,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:09:11,273 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-13 13:09:11,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:09:11,287 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-13 13:09:11,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:09:11,294 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 195 [2024-11-13 13:09:11,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:09:11,301 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 202 [2024-11-13 13:09:11,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:09:11,307 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 209 [2024-11-13 13:09:11,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:09:11,315 INFO L134 CoverageAnalysis]: Checked inductivity of 285 backedges. 20 proven. 11 refuted. 0 times theorem prover too weak. 254 trivial. 0 not checked. [2024-11-13 13:09:11,315 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 13:09:11,316 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1214761834] [2024-11-13 13:09:11,316 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1214761834] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 13:09:11,316 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1199074365] [2024-11-13 13:09:11,316 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:09:11,316 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 13:09:11,316 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc9b47a5-bb84-4ede-afd0-1b6741adaeee/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 13:09:11,318 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc9b47a5-bb84-4ede-afd0-1b6741adaeee/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 13:09:11,322 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc9b47a5-bb84-4ede-afd0-1b6741adaeee/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-13 13:09:18,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:09:18,849 INFO L255 TraceCheckSpWp]: Trace formula consists of 4694 conjuncts, 126 conjuncts are in the unsatisfiable core [2024-11-13 13:09:18,860 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 13:09:20,478 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2024-11-13 13:09:20,532 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 1 [2024-11-13 13:09:20,559 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 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 [2024-11-13 13:09:31,081 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 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 [2024-11-13 13:09:31,162 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 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 [2024-11-13 13:10:13,075 INFO L134 CoverageAnalysis]: Checked inductivity of 285 backedges. 212 proven. 33 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2024-11-13 13:10:13,076 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 13:10:27,748 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1199074365] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 13:10:27,748 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-13 13:10:27,748 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 36] total 44 [2024-11-13 13:10:27,748 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1244568886] [2024-11-13 13:10:27,749 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-13 13:10:27,750 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 44 states [2024-11-13 13:10:27,750 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 13:10:27,751 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 44 interpolants. [2024-11-13 13:10:27,752 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=173, Invalid=2377, Unknown=0, NotChecked=0, Total=2550 [2024-11-13 13:10:27,752 INFO L87 Difference]: Start difference. First operand 237 states and 282 transitions. Second operand has 44 states, 36 states have (on average 5.055555555555555) internal successors, (182), 34 states have internal predecessors, (182), 15 states have call successors, (59), 9 states have call predecessors, (59), 15 states have return successors, (54), 14 states have call predecessors, (54), 15 states have call successors, (54) [2024-11-13 13:10:31,825 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.07s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-13 13:10:36,208 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.38s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-13 13:10:40,663 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.45s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-13 13:10:45,125 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.46s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-13 13:13:24,531 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 13:13:24,531 INFO L93 Difference]: Finished difference Result 446 states and 553 transitions. [2024-11-13 13:13:24,532 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 67 states. [2024-11-13 13:13:24,532 INFO L78 Accepts]: Start accepts. Automaton has has 44 states, 36 states have (on average 5.055555555555555) internal successors, (182), 34 states have internal predecessors, (182), 15 states have call successors, (59), 9 states have call predecessors, (59), 15 states have return successors, (54), 14 states have call predecessors, (54), 15 states have call successors, (54) Word has length 219 [2024-11-13 13:13:24,533 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 13:13:24,536 INFO L225 Difference]: With dead ends: 446 [2024-11-13 13:13:24,536 INFO L226 Difference]: Without dead ends: 278 [2024-11-13 13:13:24,541 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 391 GetRequests, 275 SyntacticMatches, 11 SemanticMatches, 105 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2992 ImplicationChecksByTransitivity, 100.7s TimeCoverageRelationStatistics Valid=1079, Invalid=10263, Unknown=0, NotChecked=0, Total=11342 [2024-11-13 13:13:24,542 INFO L432 NwaCegarLoop]: 66 mSDtfsCounter, 532 mSDsluCounter, 983 mSDsCounter, 0 mSdLazyCounter, 5554 mSolverCounterSat, 295 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 115.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 537 SdHoareTripleChecker+Valid, 1049 SdHoareTripleChecker+Invalid, 5853 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 295 IncrementalHoareTripleChecker+Valid, 5554 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 118.2s IncrementalHoareTripleChecker+Time [2024-11-13 13:13:24,543 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [537 Valid, 1049 Invalid, 5853 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [295 Valid, 5554 Invalid, 4 Unknown, 0 Unchecked, 118.2s Time] [2024-11-13 13:13:24,544 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 278 states. [2024-11-13 13:13:24,599 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 278 to 252. [2024-11-13 13:13:24,600 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 252 states, 171 states have (on average 1.1461988304093567) internal successors, (196), 173 states have internal predecessors, (196), 49 states have call successors, (49), 28 states have call predecessors, (49), 31 states have return successors, (53), 50 states have call predecessors, (53), 48 states have call successors, (53) [2024-11-13 13:13:24,601 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 252 states to 252 states and 298 transitions. [2024-11-13 13:13:24,602 INFO L78 Accepts]: Start accepts. Automaton has 252 states and 298 transitions. Word has length 219 [2024-11-13 13:13:24,603 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 13:13:24,603 INFO L471 AbstractCegarLoop]: Abstraction has 252 states and 298 transitions. [2024-11-13 13:13:24,604 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 44 states, 36 states have (on average 5.055555555555555) internal successors, (182), 34 states have internal predecessors, (182), 15 states have call successors, (59), 9 states have call predecessors, (59), 15 states have return successors, (54), 14 states have call predecessors, (54), 15 states have call successors, (54) [2024-11-13 13:13:24,604 INFO L276 IsEmpty]: Start isEmpty. Operand 252 states and 298 transitions. [2024-11-13 13:13:24,606 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 226 [2024-11-13 13:13:24,606 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 13:13:24,607 INFO L215 NwaCegarLoop]: trace histogram [10, 10, 10, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2024-11-13 13:13:24,643 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc9b47a5-bb84-4ede-afd0-1b6741adaeee/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-11-13 13:13:24,811 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc9b47a5-bb84-4ede-afd0-1b6741adaeee/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 13:13:24,811 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 13:13:24,811 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:13:24,811 INFO L85 PathProgramCache]: Analyzing trace with hash -2009787841, now seen corresponding path program 1 times [2024-11-13 13:13:24,811 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 13:13:24,812 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2053049106] [2024-11-13 13:13:24,812 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:13:24,812 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 13:13:30,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:13:33,898 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-13 13:13:33,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:13:33,905 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-11-13 13:13:33,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:13:33,910 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-13 13:13:33,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:13:33,917 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-13 13:13:33,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:13:34,374 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-11-13 13:13:34,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:13:34,627 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-13 13:13:34,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:13:34,638 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-13 13:13:34,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:13:34,768 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-13 13:13:34,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:13:34,774 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-13 13:13:34,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:13:34,985 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-11-13 13:13:34,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:13:34,993 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-13 13:13:34,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:13:34,999 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-13 13:13:35,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:13:35,014 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-13 13:13:35,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:13:35,026 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-13 13:13:35,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:13:35,031 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-11-13 13:13:35,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:13:35,037 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2024-11-13 13:13:35,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:13:35,042 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2024-11-13 13:13:35,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:13:35,061 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-13 13:13:35,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:13:35,076 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-13 13:13:35,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:13:35,088 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-13 13:13:35,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:13:35,094 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2024-11-13 13:13:35,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:13:35,102 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2024-11-13 13:13:35,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:13:35,116 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-13 13:13:35,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:13:35,126 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-13 13:13:35,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:13:35,134 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-13 13:13:35,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:13:35,142 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2024-11-13 13:13:35,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:13:35,149 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 171 [2024-11-13 13:13:35,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:13:35,387 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-13 13:13:35,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:13:35,403 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-13 13:13:35,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:13:35,415 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-13 13:13:35,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:13:35,422 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 201 [2024-11-13 13:13:35,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:13:35,942 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 208 [2024-11-13 13:13:35,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:13:35,948 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 215 [2024-11-13 13:13:35,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:13:35,954 INFO L134 CoverageAnalysis]: Checked inductivity of 287 backedges. 28 proven. 3 refuted. 0 times theorem prover too weak. 256 trivial. 0 not checked. [2024-11-13 13:13:35,954 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 13:13:35,954 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2053049106] [2024-11-13 13:13:35,954 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2053049106] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 13:13:35,954 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1138596792] [2024-11-13 13:13:35,954 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:13:35,955 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 13:13:35,955 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc9b47a5-bb84-4ede-afd0-1b6741adaeee/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 13:13:35,957 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc9b47a5-bb84-4ede-afd0-1b6741adaeee/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 13:13:35,958 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc9b47a5-bb84-4ede-afd0-1b6741adaeee/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-11-13 13:13:46,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:13:46,123 INFO L255 TraceCheckSpWp]: Trace formula consists of 4718 conjuncts, 86 conjuncts are in the unsatisfiable core [2024-11-13 13:13:46,135 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 13:13:49,517 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 1 [2024-11-13 13:13:49,562 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 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 [2024-11-13 13:13:49,668 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 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 [2024-11-13 13:13:53,354 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 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 [2024-11-13 13:13:53,390 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 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 [2024-11-13 13:14:17,817 INFO L134 CoverageAnalysis]: Checked inductivity of 287 backedges. 230 proven. 11 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2024-11-13 13:14:17,818 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 13:14:30,378 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1138596792] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 13:14:30,378 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-13 13:14:30,378 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 23] total 31 [2024-11-13 13:14:30,379 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [93444236] [2024-11-13 13:14:30,379 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-13 13:14:30,379 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 31 states [2024-11-13 13:14:30,380 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 13:14:30,381 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2024-11-13 13:14:30,382 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=115, Invalid=1145, Unknown=0, NotChecked=0, Total=1260 [2024-11-13 13:14:30,382 INFO L87 Difference]: Start difference. First operand 252 states and 298 transitions. Second operand has 31 states, 26 states have (on average 7.384615384615385) internal successors, (192), 25 states have internal predecessors, (192), 13 states have call successors, (59), 9 states have call predecessors, (59), 11 states have return successors, (54), 12 states have call predecessors, (54), 13 states have call successors, (54) [2024-11-13 13:14:34,471 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.09s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-13 13:14:38,822 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.35s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-13 13:14:43,234 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.41s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-13 13:14:47,684 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.45s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers []