./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount500_file-81.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version d790fecc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b14b0c39-03bc-489e-afd0-b44ae09ba5e4/bin/uautomizer-verify-aQ6SnzHsRB/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b14b0c39-03bc-489e-afd0-b44ae09ba5e4/bin/uautomizer-verify-aQ6SnzHsRB/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b14b0c39-03bc-489e-afd0-b44ae09ba5e4/bin/uautomizer-verify-aQ6SnzHsRB/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b14b0c39-03bc-489e-afd0-b44ae09ba5e4/bin/uautomizer-verify-aQ6SnzHsRB/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount500_file-81.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b14b0c39-03bc-489e-afd0-b44ae09ba5e4/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b14b0c39-03bc-489e-afd0-b44ae09ba5e4/bin/uautomizer-verify-aQ6SnzHsRB --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 32bit --witnessprinter.graph.data.programhash 8e61ad20a36349f4673d22f97854260433b62fc5e4079b00e6a93a15c6138c2d --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-11-28 03:55:26,910 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-28 03:55:27,016 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b14b0c39-03bc-489e-afd0-b44ae09ba5e4/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-28 03:55:27,027 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-28 03:55:27,027 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-28 03:55:27,072 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-28 03:55:27,073 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-28 03:55:27,073 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-28 03:55:27,075 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-28 03:55:27,075 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-28 03:55:27,076 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-28 03:55:27,077 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-28 03:55:27,077 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-28 03:55:27,077 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-28 03:55:27,078 INFO L153 SettingsManager]: * Use SBE=true [2024-11-28 03:55:27,078 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-28 03:55:27,078 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-28 03:55:27,079 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-28 03:55:27,079 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-28 03:55:27,079 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-28 03:55:27,079 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-28 03:55:27,079 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-28 03:55:27,079 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-28 03:55:27,079 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-28 03:55:27,079 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-28 03:55:27,079 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-28 03:55:27,080 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-28 03:55:27,080 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-28 03:55:27,080 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-28 03:55:27,080 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 03:55:27,081 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-28 03:55:27,081 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 03:55:27,081 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 03:55:27,081 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-28 03:55:27,081 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 03:55:27,081 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-28 03:55:27,081 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 03:55:27,082 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 03:55:27,082 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-28 03:55:27,082 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-28 03:55:27,082 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-28 03:55:27,082 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-28 03:55:27,082 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-28 03:55:27,082 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-28 03:55:27,082 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-28 03:55:27,082 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-28 03:55:27,083 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-28 03:55:27,083 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-28 03:55:27,083 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_b14b0c39-03bc-489e-afd0-b44ae09ba5e4/bin/uautomizer-verify-aQ6SnzHsRB 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 -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8e61ad20a36349f4673d22f97854260433b62fc5e4079b00e6a93a15c6138c2d [2024-11-28 03:55:27,451 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-28 03:55:27,468 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-28 03:55:27,471 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-28 03:55:27,473 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-28 03:55:27,473 INFO L274 PluginConnector]: CDTParser initialized [2024-11-28 03:55:27,476 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b14b0c39-03bc-489e-afd0-b44ae09ba5e4/bin/uautomizer-verify-aQ6SnzHsRB/../../sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount500_file-81.i [2024-11-28 03:55:31,215 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b14b0c39-03bc-489e-afd0-b44ae09ba5e4/bin/uautomizer-verify-aQ6SnzHsRB/data/e0a2e7920/daf1ce95ba9c464c970b4730a2bbe1ae/FLAGe9dbea616 [2024-11-28 03:55:31,627 INFO L384 CDTParser]: Found 1 translation units. [2024-11-28 03:55:31,627 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b14b0c39-03bc-489e-afd0-b44ae09ba5e4/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount500_file-81.i [2024-11-28 03:55:31,655 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b14b0c39-03bc-489e-afd0-b44ae09ba5e4/bin/uautomizer-verify-aQ6SnzHsRB/data/e0a2e7920/daf1ce95ba9c464c970b4730a2bbe1ae/FLAGe9dbea616 [2024-11-28 03:55:31,688 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b14b0c39-03bc-489e-afd0-b44ae09ba5e4/bin/uautomizer-verify-aQ6SnzHsRB/data/e0a2e7920/daf1ce95ba9c464c970b4730a2bbe1ae [2024-11-28 03:55:31,690 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-28 03:55:31,694 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-28 03:55:31,696 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-28 03:55:31,696 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-28 03:55:31,710 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-28 03:55:31,711 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 03:55:31" (1/1) ... [2024-11-28 03:55:31,712 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1f4df9af and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:55:31, skipping insertion in model container [2024-11-28 03:55:31,712 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 03:55:31" (1/1) ... [2024-11-28 03:55:31,795 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-28 03:55:32,041 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_b14b0c39-03bc-489e-afd0-b44ae09ba5e4/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount500_file-81.i[916,929] [2024-11-28 03:55:32,468 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 03:55:32,506 INFO L200 MainTranslator]: Completed pre-run [2024-11-28 03:55:32,527 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_b14b0c39-03bc-489e-afd0-b44ae09ba5e4/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount500_file-81.i[916,929] [2024-11-28 03:55:32,791 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 03:55:32,816 INFO L204 MainTranslator]: Completed translation [2024-11-28 03:55:32,817 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:55:32 WrapperNode [2024-11-28 03:55:32,817 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-28 03:55:32,818 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-28 03:55:32,819 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-28 03:55:32,819 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-28 03:55:32,828 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:55:32" (1/1) ... [2024-11-28 03:55:32,861 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:55:32" (1/1) ... [2024-11-28 03:55:33,117 INFO L138 Inliner]: procedures = 26, calls = 89, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 813 [2024-11-28 03:55:33,120 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-28 03:55:33,120 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-28 03:55:33,121 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-28 03:55:33,121 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-28 03:55:33,133 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:55:32" (1/1) ... [2024-11-28 03:55:33,134 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:55:32" (1/1) ... [2024-11-28 03:55:33,174 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:55:32" (1/1) ... [2024-11-28 03:55:33,292 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-11-28 03:55:33,294 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:55:32" (1/1) ... [2024-11-28 03:55:33,294 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:55:32" (1/1) ... [2024-11-28 03:55:33,364 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:55:32" (1/1) ... [2024-11-28 03:55:33,371 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:55:32" (1/1) ... [2024-11-28 03:55:33,383 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:55:32" (1/1) ... [2024-11-28 03:55:33,408 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:55:32" (1/1) ... [2024-11-28 03:55:33,422 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:55:32" (1/1) ... [2024-11-28 03:55:33,457 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-28 03:55:33,459 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-28 03:55:33,460 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-28 03:55:33,460 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-28 03:55:33,462 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:55:32" (1/1) ... [2024-11-28 03:55:33,470 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 03:55:33,488 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b14b0c39-03bc-489e-afd0-b44ae09ba5e4/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:55:33,506 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b14b0c39-03bc-489e-afd0-b44ae09ba5e4/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-28 03:55:33,510 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b14b0c39-03bc-489e-afd0-b44ae09ba5e4/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-28 03:55:33,548 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-28 03:55:33,549 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-28 03:55:33,549 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-28 03:55:33,550 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-28 03:55:33,550 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-28 03:55:33,550 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-28 03:55:33,805 INFO L234 CfgBuilder]: Building ICFG [2024-11-28 03:55:33,808 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-28 03:55:36,466 INFO L? ?]: Removed 111 outVars from TransFormulas that were not future-live. [2024-11-28 03:55:36,466 INFO L283 CfgBuilder]: Performing block encoding [2024-11-28 03:55:36,503 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-28 03:55:36,503 INFO L312 CfgBuilder]: Removed 2 assume(true) statements. [2024-11-28 03:55:36,503 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:55:36 BoogieIcfgContainer [2024-11-28 03:55:36,508 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-28 03:55:36,511 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-28 03:55:36,511 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-28 03:55:36,521 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-28 03:55:36,521 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 03:55:31" (1/3) ... [2024-11-28 03:55:36,523 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@191693f2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 03:55:36, skipping insertion in model container [2024-11-28 03:55:36,523 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:55:32" (2/3) ... [2024-11-28 03:55:36,523 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@191693f2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 03:55:36, skipping insertion in model container [2024-11-28 03:55:36,524 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:55:36" (3/3) ... [2024-11-28 03:55:36,527 INFO L128 eAbstractionObserver]: Analyzing ICFG hardness_operatoramount_amount500_file-81.i [2024-11-28 03:55:36,553 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-28 03:55:36,559 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG hardness_operatoramount_amount500_file-81.i that has 2 procedures, 331 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2024-11-28 03:55:36,663 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-28 03:55:36,681 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;@e2dba9f, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-28 03:55:36,681 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-28 03:55:36,690 INFO L276 IsEmpty]: Start isEmpty. Operand has 331 states, 252 states have (on average 1.5476190476190477) internal successors, (390), 253 states have internal predecessors, (390), 76 states have call successors, (76), 1 states have call predecessors, (76), 1 states have return successors, (76), 76 states have call predecessors, (76), 76 states have call successors, (76) [2024-11-28 03:55:36,746 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 529 [2024-11-28 03:55:36,747 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:55:36,748 INFO L218 NwaCegarLoop]: trace histogram [76, 76, 76, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:55:36,749 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:55:36,758 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:55:36,759 INFO L85 PathProgramCache]: Analyzing trace with hash -4373028, now seen corresponding path program 1 times [2024-11-28 03:55:36,770 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:55:36,771 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1074479052] [2024-11-28 03:55:36,772 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:55:36,773 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:55:37,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:55:38,088 INFO L134 CoverageAnalysis]: Checked inductivity of 11400 backedges. 0 proven. 150 refuted. 0 times theorem prover too weak. 11250 trivial. 0 not checked. [2024-11-28 03:55:38,089 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:55:38,089 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1074479052] [2024-11-28 03:55:38,093 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1074479052] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 03:55:38,094 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [806478309] [2024-11-28 03:55:38,094 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:55:38,094 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:55:38,094 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b14b0c39-03bc-489e-afd0-b44ae09ba5e4/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:55:38,098 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b14b0c39-03bc-489e-afd0-b44ae09ba5e4/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 03:55:38,101 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b14b0c39-03bc-489e-afd0-b44ae09ba5e4/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-28 03:55:38,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:55:38,790 INFO L256 TraceCheckSpWp]: Trace formula consists of 1304 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-28 03:55:38,825 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:55:38,935 INFO L134 CoverageAnalysis]: Checked inductivity of 11400 backedges. 150 proven. 0 refuted. 0 times theorem prover too weak. 11250 trivial. 0 not checked. [2024-11-28 03:55:38,935 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 03:55:38,935 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [806478309] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:55:38,936 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-28 03:55:38,936 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2 [2024-11-28 03:55:38,940 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [89540144] [2024-11-28 03:55:38,940 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:55:38,949 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-28 03:55:38,949 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:55:38,980 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-28 03:55:38,981 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-28 03:55:38,985 INFO L87 Difference]: Start difference. First operand has 331 states, 252 states have (on average 1.5476190476190477) internal successors, (390), 253 states have internal predecessors, (390), 76 states have call successors, (76), 1 states have call predecessors, (76), 1 states have return successors, (76), 76 states have call predecessors, (76), 76 states have call successors, (76) Second operand has 2 states, 2 states have (on average 76.5) internal successors, (153), 2 states have internal predecessors, (153), 2 states have call successors, (76), 2 states have call predecessors, (76), 1 states have return successors, (76), 1 states have call predecessors, (76), 2 states have call successors, (76) [2024-11-28 03:55:39,122 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:55:39,123 INFO L93 Difference]: Finished difference Result 653 states and 1150 transitions. [2024-11-28 03:55:39,128 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-28 03:55:39,130 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 76.5) internal successors, (153), 2 states have internal predecessors, (153), 2 states have call successors, (76), 2 states have call predecessors, (76), 1 states have return successors, (76), 1 states have call predecessors, (76), 2 states have call successors, (76) Word has length 528 [2024-11-28 03:55:39,130 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:55:39,150 INFO L225 Difference]: With dead ends: 653 [2024-11-28 03:55:39,150 INFO L226 Difference]: Without dead ends: 325 [2024-11-28 03:55:39,160 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 529 GetRequests, 529 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-28 03:55:39,167 INFO L435 NwaCegarLoop]: 529 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 529 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-28 03:55:39,168 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 529 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 03:55:39,183 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 325 states. [2024-11-28 03:55:39,271 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 325 to 325. [2024-11-28 03:55:39,274 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 325 states, 247 states have (on average 1.5263157894736843) internal successors, (377), 247 states have internal predecessors, (377), 76 states have call successors, (76), 1 states have call predecessors, (76), 1 states have return successors, (76), 76 states have call predecessors, (76), 76 states have call successors, (76) [2024-11-28 03:55:39,286 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 325 states to 325 states and 529 transitions. [2024-11-28 03:55:39,291 INFO L78 Accepts]: Start accepts. Automaton has 325 states and 529 transitions. Word has length 528 [2024-11-28 03:55:39,293 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:55:39,293 INFO L471 AbstractCegarLoop]: Abstraction has 325 states and 529 transitions. [2024-11-28 03:55:39,294 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 76.5) internal successors, (153), 2 states have internal predecessors, (153), 2 states have call successors, (76), 2 states have call predecessors, (76), 1 states have return successors, (76), 1 states have call predecessors, (76), 2 states have call successors, (76) [2024-11-28 03:55:39,296 INFO L276 IsEmpty]: Start isEmpty. Operand 325 states and 529 transitions. [2024-11-28 03:55:39,320 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 529 [2024-11-28 03:55:39,320 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:55:39,321 INFO L218 NwaCegarLoop]: trace histogram [76, 76, 76, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:55:39,337 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b14b0c39-03bc-489e-afd0-b44ae09ba5e4/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-28 03:55:39,525 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b14b0c39-03bc-489e-afd0-b44ae09ba5e4/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2024-11-28 03:55:39,526 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:55:39,526 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:55:39,527 INFO L85 PathProgramCache]: Analyzing trace with hash 1272163240, now seen corresponding path program 1 times [2024-11-28 03:55:39,527 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:55:39,527 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [852665531] [2024-11-28 03:55:39,527 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:55:39,527 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:55:39,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:55:41,261 INFO L134 CoverageAnalysis]: Checked inductivity of 11400 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 11400 trivial. 0 not checked. [2024-11-28 03:55:41,262 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:55:41,262 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [852665531] [2024-11-28 03:55:41,263 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [852665531] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:55:41,263 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:55:41,263 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-28 03:55:41,263 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [506713729] [2024-11-28 03:55:41,263 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:55:41,265 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 03:55:41,265 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:55:41,271 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 03:55:41,271 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-28 03:55:41,272 INFO L87 Difference]: Start difference. First operand 325 states and 529 transitions. Second operand has 4 states, 4 states have (on average 37.75) internal successors, (151), 4 states have internal predecessors, (151), 1 states have call successors, (76), 1 states have call predecessors, (76), 1 states have return successors, (76), 1 states have call predecessors, (76), 1 states have call successors, (76) [2024-11-28 03:55:42,085 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:55:42,085 INFO L93 Difference]: Finished difference Result 1040 states and 1689 transitions. [2024-11-28 03:55:42,086 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 03:55:42,086 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 37.75) internal successors, (151), 4 states have internal predecessors, (151), 1 states have call successors, (76), 1 states have call predecessors, (76), 1 states have return successors, (76), 1 states have call predecessors, (76), 1 states have call successors, (76) Word has length 528 [2024-11-28 03:55:42,091 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:55:42,105 INFO L225 Difference]: With dead ends: 1040 [2024-11-28 03:55:42,105 INFO L226 Difference]: Without dead ends: 718 [2024-11-28 03:55:42,108 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-28 03:55:42,110 INFO L435 NwaCegarLoop]: 614 mSDtfsCounter, 695 mSDsluCounter, 1027 mSDsCounter, 0 mSdLazyCounter, 46 mSolverCounterSat, 230 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 695 SdHoareTripleChecker+Valid, 1641 SdHoareTripleChecker+Invalid, 276 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 230 IncrementalHoareTripleChecker+Valid, 46 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-28 03:55:42,110 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [695 Valid, 1641 Invalid, 276 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [230 Valid, 46 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-28 03:55:42,115 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 718 states. [2024-11-28 03:55:42,286 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 718 to 663. [2024-11-28 03:55:42,288 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 663 states, 508 states have (on average 1.531496062992126) internal successors, (778), 508 states have internal predecessors, (778), 152 states have call successors, (152), 2 states have call predecessors, (152), 2 states have return successors, (152), 152 states have call predecessors, (152), 152 states have call successors, (152) [2024-11-28 03:55:42,298 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 663 states to 663 states and 1082 transitions. [2024-11-28 03:55:42,303 INFO L78 Accepts]: Start accepts. Automaton has 663 states and 1082 transitions. Word has length 528 [2024-11-28 03:55:42,305 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:55:42,305 INFO L471 AbstractCegarLoop]: Abstraction has 663 states and 1082 transitions. [2024-11-28 03:55:42,306 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 37.75) internal successors, (151), 4 states have internal predecessors, (151), 1 states have call successors, (76), 1 states have call predecessors, (76), 1 states have return successors, (76), 1 states have call predecessors, (76), 1 states have call successors, (76) [2024-11-28 03:55:42,306 INFO L276 IsEmpty]: Start isEmpty. Operand 663 states and 1082 transitions. [2024-11-28 03:55:42,329 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 530 [2024-11-28 03:55:42,330 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:55:42,330 INFO L218 NwaCegarLoop]: trace histogram [76, 76, 76, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:55:42,330 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-28 03:55:42,331 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:55:42,331 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:55:42,333 INFO L85 PathProgramCache]: Analyzing trace with hash -595285902, now seen corresponding path program 1 times [2024-11-28 03:55:42,333 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:55:42,334 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [498017855] [2024-11-28 03:55:42,334 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:55:42,334 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:55:42,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:55:43,258 INFO L134 CoverageAnalysis]: Checked inductivity of 11400 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 11400 trivial. 0 not checked. [2024-11-28 03:55:43,258 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:55:43,259 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [498017855] [2024-11-28 03:55:43,260 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [498017855] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:55:43,260 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:55:43,260 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 03:55:43,260 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [204653189] [2024-11-28 03:55:43,261 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:55:43,263 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 03:55:43,264 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:55:43,265 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 03:55:43,267 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 03:55:43,267 INFO L87 Difference]: Start difference. First operand 663 states and 1082 transitions. Second operand has 3 states, 3 states have (on average 50.666666666666664) internal successors, (152), 3 states have internal predecessors, (152), 1 states have call successors, (76), 1 states have call predecessors, (76), 1 states have return successors, (76), 1 states have call predecessors, (76), 1 states have call successors, (76) [2024-11-28 03:55:43,417 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:55:43,417 INFO L93 Difference]: Finished difference Result 1727 states and 2828 transitions. [2024-11-28 03:55:43,418 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 03:55:43,418 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 50.666666666666664) internal successors, (152), 3 states have internal predecessors, (152), 1 states have call successors, (76), 1 states have call predecessors, (76), 1 states have return successors, (76), 1 states have call predecessors, (76), 1 states have call successors, (76) Word has length 529 [2024-11-28 03:55:43,422 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:55:43,434 INFO L225 Difference]: With dead ends: 1727 [2024-11-28 03:55:43,434 INFO L226 Difference]: Without dead ends: 1067 [2024-11-28 03:55:43,436 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 03:55:43,441 INFO L435 NwaCegarLoop]: 525 mSDtfsCounter, 304 mSDsluCounter, 519 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 304 SdHoareTripleChecker+Valid, 1044 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-28 03:55:43,441 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [304 Valid, 1044 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-28 03:55:43,443 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1067 states. [2024-11-28 03:55:43,573 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1067 to 715. [2024-11-28 03:55:43,575 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 715 states, 560 states have (on average 1.5446428571428572) internal successors, (865), 560 states have internal predecessors, (865), 152 states have call successors, (152), 2 states have call predecessors, (152), 2 states have return successors, (152), 152 states have call predecessors, (152), 152 states have call successors, (152) [2024-11-28 03:55:43,588 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 715 states to 715 states and 1169 transitions. [2024-11-28 03:55:43,589 INFO L78 Accepts]: Start accepts. Automaton has 715 states and 1169 transitions. Word has length 529 [2024-11-28 03:55:43,591 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:55:43,591 INFO L471 AbstractCegarLoop]: Abstraction has 715 states and 1169 transitions. [2024-11-28 03:55:43,591 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 50.666666666666664) internal successors, (152), 3 states have internal predecessors, (152), 1 states have call successors, (76), 1 states have call predecessors, (76), 1 states have return successors, (76), 1 states have call predecessors, (76), 1 states have call successors, (76) [2024-11-28 03:55:43,592 INFO L276 IsEmpty]: Start isEmpty. Operand 715 states and 1169 transitions. [2024-11-28 03:55:43,605 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 530 [2024-11-28 03:55:43,605 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:55:43,605 INFO L218 NwaCegarLoop]: trace histogram [76, 76, 76, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:55:43,606 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-28 03:55:43,606 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:55:43,606 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:55:43,607 INFO L85 PathProgramCache]: Analyzing trace with hash 1281196916, now seen corresponding path program 1 times [2024-11-28 03:55:43,607 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:55:43,607 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [139547501] [2024-11-28 03:55:43,607 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:55:43,607 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:55:43,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:55:44,245 INFO L134 CoverageAnalysis]: Checked inductivity of 11400 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 11400 trivial. 0 not checked. [2024-11-28 03:55:44,245 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:55:44,246 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [139547501] [2024-11-28 03:55:44,246 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [139547501] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:55:44,246 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:55:44,246 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 03:55:44,246 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1829305734] [2024-11-28 03:55:44,247 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:55:44,248 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 03:55:44,249 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:55:44,251 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 03:55:44,251 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 03:55:44,252 INFO L87 Difference]: Start difference. First operand 715 states and 1169 transitions. Second operand has 3 states, 3 states have (on average 50.666666666666664) internal successors, (152), 3 states have internal predecessors, (152), 1 states have call successors, (76), 1 states have call predecessors, (76), 1 states have return successors, (76), 1 states have call predecessors, (76), 1 states have call successors, (76) [2024-11-28 03:55:44,481 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:55:44,481 INFO L93 Difference]: Finished difference Result 1939 states and 3165 transitions. [2024-11-28 03:55:44,482 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 03:55:44,482 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 50.666666666666664) internal successors, (152), 3 states have internal predecessors, (152), 1 states have call successors, (76), 1 states have call predecessors, (76), 1 states have return successors, (76), 1 states have call predecessors, (76), 1 states have call successors, (76) Word has length 529 [2024-11-28 03:55:44,484 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:55:44,494 INFO L225 Difference]: With dead ends: 1939 [2024-11-28 03:55:44,494 INFO L226 Difference]: Without dead ends: 1227 [2024-11-28 03:55:44,498 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 03:55:44,499 INFO L435 NwaCegarLoop]: 764 mSDtfsCounter, 398 mSDsluCounter, 505 mSDsCounter, 0 mSdLazyCounter, 33 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 398 SdHoareTripleChecker+Valid, 1269 SdHoareTripleChecker+Invalid, 37 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 33 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-28 03:55:44,499 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [398 Valid, 1269 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 33 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-28 03:55:44,502 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1227 states. [2024-11-28 03:55:44,712 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1227 to 1223. [2024-11-28 03:55:44,716 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1223 states, 950 states have (on average 1.5326315789473683) internal successors, (1456), 952 states have internal predecessors, (1456), 268 states have call successors, (268), 4 states have call predecessors, (268), 4 states have return successors, (268), 266 states have call predecessors, (268), 268 states have call successors, (268) [2024-11-28 03:55:44,729 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1223 states to 1223 states and 1992 transitions. [2024-11-28 03:55:44,731 INFO L78 Accepts]: Start accepts. Automaton has 1223 states and 1992 transitions. Word has length 529 [2024-11-28 03:55:44,732 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:55:44,732 INFO L471 AbstractCegarLoop]: Abstraction has 1223 states and 1992 transitions. [2024-11-28 03:55:44,733 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 50.666666666666664) internal successors, (152), 3 states have internal predecessors, (152), 1 states have call successors, (76), 1 states have call predecessors, (76), 1 states have return successors, (76), 1 states have call predecessors, (76), 1 states have call successors, (76) [2024-11-28 03:55:44,733 INFO L276 IsEmpty]: Start isEmpty. Operand 1223 states and 1992 transitions. [2024-11-28 03:55:44,750 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 530 [2024-11-28 03:55:44,750 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:55:44,751 INFO L218 NwaCegarLoop]: trace histogram [76, 76, 76, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:55:44,751 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-28 03:55:44,751 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:55:44,752 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:55:44,752 INFO L85 PathProgramCache]: Analyzing trace with hash 1358097714, now seen corresponding path program 1 times [2024-11-28 03:55:44,752 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:55:44,752 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [873168770] [2024-11-28 03:55:44,753 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:55:44,753 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:55:44,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:55:45,356 INFO L134 CoverageAnalysis]: Checked inductivity of 11400 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 11400 trivial. 0 not checked. [2024-11-28 03:55:45,356 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:55:45,356 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [873168770] [2024-11-28 03:55:45,356 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [873168770] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:55:45,357 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:55:45,357 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 03:55:45,357 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1536280741] [2024-11-28 03:55:45,357 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:55:45,358 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 03:55:45,358 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:55:45,359 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 03:55:45,359 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 03:55:45,359 INFO L87 Difference]: Start difference. First operand 1223 states and 1992 transitions. Second operand has 3 states, 3 states have (on average 50.666666666666664) internal successors, (152), 3 states have internal predecessors, (152), 1 states have call successors, (76), 1 states have call predecessors, (76), 1 states have return successors, (76), 1 states have call predecessors, (76), 1 states have call successors, (76) [2024-11-28 03:55:45,593 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:55:45,593 INFO L93 Difference]: Finished difference Result 2455 states and 3990 transitions. [2024-11-28 03:55:45,594 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 03:55:45,595 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 50.666666666666664) internal successors, (152), 3 states have internal predecessors, (152), 1 states have call successors, (76), 1 states have call predecessors, (76), 1 states have return successors, (76), 1 states have call predecessors, (76), 1 states have call successors, (76) Word has length 529 [2024-11-28 03:55:45,596 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:55:45,610 INFO L225 Difference]: With dead ends: 2455 [2024-11-28 03:55:45,610 INFO L226 Difference]: Without dead ends: 1235 [2024-11-28 03:55:45,615 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 03:55:45,618 INFO L435 NwaCegarLoop]: 638 mSDtfsCounter, 367 mSDsluCounter, 505 mSDsCounter, 0 mSdLazyCounter, 31 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 367 SdHoareTripleChecker+Valid, 1143 SdHoareTripleChecker+Invalid, 34 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 31 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-28 03:55:45,618 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [367 Valid, 1143 Invalid, 34 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 31 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-28 03:55:45,621 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1235 states. [2024-11-28 03:55:45,722 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1235 to 857. [2024-11-28 03:55:45,724 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 857 states, 700 states have (on average 1.5585714285714285) internal successors, (1091), 700 states have internal predecessors, (1091), 152 states have call successors, (152), 4 states have call predecessors, (152), 4 states have return successors, (152), 152 states have call predecessors, (152), 152 states have call successors, (152) [2024-11-28 03:55:45,731 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 857 states to 857 states and 1395 transitions. [2024-11-28 03:55:45,734 INFO L78 Accepts]: Start accepts. Automaton has 857 states and 1395 transitions. Word has length 529 [2024-11-28 03:55:45,736 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:55:45,736 INFO L471 AbstractCegarLoop]: Abstraction has 857 states and 1395 transitions. [2024-11-28 03:55:45,736 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 50.666666666666664) internal successors, (152), 3 states have internal predecessors, (152), 1 states have call successors, (76), 1 states have call predecessors, (76), 1 states have return successors, (76), 1 states have call predecessors, (76), 1 states have call successors, (76) [2024-11-28 03:55:45,737 INFO L276 IsEmpty]: Start isEmpty. Operand 857 states and 1395 transitions. [2024-11-28 03:55:45,743 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 531 [2024-11-28 03:55:45,744 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:55:45,744 INFO L218 NwaCegarLoop]: trace histogram [76, 76, 76, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:55:45,745 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-28 03:55:45,745 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:55:45,745 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:55:45,746 INFO L85 PathProgramCache]: Analyzing trace with hash 579547727, now seen corresponding path program 1 times [2024-11-28 03:55:45,746 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:55:45,746 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1907879968] [2024-11-28 03:55:45,746 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:55:45,746 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:55:46,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:55:47,403 INFO L134 CoverageAnalysis]: Checked inductivity of 11400 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 11400 trivial. 0 not checked. [2024-11-28 03:55:47,404 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:55:47,404 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1907879968] [2024-11-28 03:55:47,404 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1907879968] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:55:47,404 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:55:47,405 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-28 03:55:47,405 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [394139600] [2024-11-28 03:55:47,405 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:55:47,406 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 03:55:47,406 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:55:47,407 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 03:55:47,407 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-28 03:55:47,408 INFO L87 Difference]: Start difference. First operand 857 states and 1395 transitions. Second operand has 4 states, 4 states have (on average 38.25) internal successors, (153), 4 states have internal predecessors, (153), 1 states have call successors, (76), 1 states have call predecessors, (76), 1 states have return successors, (76), 1 states have call predecessors, (76), 1 states have call successors, (76) [2024-11-28 03:55:48,135 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:55:48,136 INFO L93 Difference]: Finished difference Result 2715 states and 4416 transitions. [2024-11-28 03:55:48,137 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 03:55:48,138 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 38.25) internal successors, (153), 4 states have internal predecessors, (153), 1 states have call successors, (76), 1 states have call predecessors, (76), 1 states have return successors, (76), 1 states have call predecessors, (76), 1 states have call successors, (76) Word has length 530 [2024-11-28 03:55:48,139 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:55:48,155 INFO L225 Difference]: With dead ends: 2715 [2024-11-28 03:55:48,155 INFO L226 Difference]: Without dead ends: 1861 [2024-11-28 03:55:48,158 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-28 03:55:48,160 INFO L435 NwaCegarLoop]: 639 mSDtfsCounter, 720 mSDsluCounter, 1033 mSDsCounter, 0 mSdLazyCounter, 33 mSolverCounterSat, 231 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 720 SdHoareTripleChecker+Valid, 1672 SdHoareTripleChecker+Invalid, 264 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 231 IncrementalHoareTripleChecker+Valid, 33 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-28 03:55:48,160 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [720 Valid, 1672 Invalid, 264 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [231 Valid, 33 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-28 03:55:48,164 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1861 states. [2024-11-28 03:55:48,352 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1861 to 1519. [2024-11-28 03:55:48,356 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1519 states, 1206 states have (on average 1.5348258706467661) internal successors, (1851), 1206 states have internal predecessors, (1851), 304 states have call successors, (304), 8 states have call predecessors, (304), 8 states have return successors, (304), 304 states have call predecessors, (304), 304 states have call successors, (304) [2024-11-28 03:55:48,369 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1519 states to 1519 states and 2459 transitions. [2024-11-28 03:55:48,372 INFO L78 Accepts]: Start accepts. Automaton has 1519 states and 2459 transitions. Word has length 530 [2024-11-28 03:55:48,374 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:55:48,374 INFO L471 AbstractCegarLoop]: Abstraction has 1519 states and 2459 transitions. [2024-11-28 03:55:48,374 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 38.25) internal successors, (153), 4 states have internal predecessors, (153), 1 states have call successors, (76), 1 states have call predecessors, (76), 1 states have return successors, (76), 1 states have call predecessors, (76), 1 states have call successors, (76) [2024-11-28 03:55:48,376 INFO L276 IsEmpty]: Start isEmpty. Operand 1519 states and 2459 transitions. [2024-11-28 03:55:48,386 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 532 [2024-11-28 03:55:48,386 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:55:48,386 INFO L218 NwaCegarLoop]: trace histogram [76, 76, 76, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:55:48,387 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-28 03:55:48,387 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:55:48,388 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:55:48,388 INFO L85 PathProgramCache]: Analyzing trace with hash 654589622, now seen corresponding path program 1 times [2024-11-28 03:55:48,388 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:55:48,388 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1776639579] [2024-11-28 03:55:48,389 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:55:48,389 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:55:48,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:55:49,685 INFO L134 CoverageAnalysis]: Checked inductivity of 11400 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 11400 trivial. 0 not checked. [2024-11-28 03:55:49,685 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:55:49,685 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1776639579] [2024-11-28 03:55:49,685 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1776639579] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:55:49,686 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:55:49,686 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-28 03:55:49,686 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [150456876] [2024-11-28 03:55:49,686 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:55:49,687 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 03:55:49,687 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:55:49,688 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 03:55:49,689 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-28 03:55:49,689 INFO L87 Difference]: Start difference. First operand 1519 states and 2459 transitions. Second operand has 4 states, 4 states have (on average 38.5) internal successors, (154), 4 states have internal predecessors, (154), 1 states have call successors, (76), 1 states have call predecessors, (76), 1 states have return successors, (76), 1 states have call predecessors, (76), 1 states have call successors, (76) [2024-11-28 03:55:50,553 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:55:50,553 INFO L93 Difference]: Finished difference Result 3658 states and 5908 transitions. [2024-11-28 03:55:50,554 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 03:55:50,554 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 38.5) internal successors, (154), 4 states have internal predecessors, (154), 1 states have call successors, (76), 1 states have call predecessors, (76), 1 states have return successors, (76), 1 states have call predecessors, (76), 1 states have call successors, (76) Word has length 531 [2024-11-28 03:55:50,555 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:55:50,572 INFO L225 Difference]: With dead ends: 3658 [2024-11-28 03:55:50,572 INFO L226 Difference]: Without dead ends: 2142 [2024-11-28 03:55:50,578 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-28 03:55:50,579 INFO L435 NwaCegarLoop]: 518 mSDtfsCounter, 429 mSDsluCounter, 1012 mSDsCounter, 0 mSdLazyCounter, 51 mSolverCounterSat, 230 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 429 SdHoareTripleChecker+Valid, 1530 SdHoareTripleChecker+Invalid, 281 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 230 IncrementalHoareTripleChecker+Valid, 51 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-28 03:55:50,579 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [429 Valid, 1530 Invalid, 281 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [230 Valid, 51 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-28 03:55:50,583 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2142 states. [2024-11-28 03:55:50,797 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2142 to 2028. [2024-11-28 03:55:50,803 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2028 states, 1637 states have (on average 1.5430665852168601) internal successors, (2526), 1637 states have internal predecessors, (2526), 380 states have call successors, (380), 10 states have call predecessors, (380), 10 states have return successors, (380), 380 states have call predecessors, (380), 380 states have call successors, (380) [2024-11-28 03:55:50,825 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2028 states to 2028 states and 3286 transitions. [2024-11-28 03:55:50,827 INFO L78 Accepts]: Start accepts. Automaton has 2028 states and 3286 transitions. Word has length 531 [2024-11-28 03:55:50,833 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:55:50,834 INFO L471 AbstractCegarLoop]: Abstraction has 2028 states and 3286 transitions. [2024-11-28 03:55:50,834 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 38.5) internal successors, (154), 4 states have internal predecessors, (154), 1 states have call successors, (76), 1 states have call predecessors, (76), 1 states have return successors, (76), 1 states have call predecessors, (76), 1 states have call successors, (76) [2024-11-28 03:55:50,834 INFO L276 IsEmpty]: Start isEmpty. Operand 2028 states and 3286 transitions. [2024-11-28 03:55:50,840 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 533 [2024-11-28 03:55:50,840 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:55:50,840 INFO L218 NwaCegarLoop]: trace histogram [76, 76, 76, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:55:50,841 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-28 03:55:50,841 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:55:50,842 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:55:50,842 INFO L85 PathProgramCache]: Analyzing trace with hash -1105242953, now seen corresponding path program 1 times [2024-11-28 03:55:50,842 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:55:50,843 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1853907024] [2024-11-28 03:55:50,843 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:55:50,843 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:55:51,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:55:51,887 INFO L134 CoverageAnalysis]: Checked inductivity of 11400 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 11400 trivial. 0 not checked. [2024-11-28 03:55:51,888 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:55:51,888 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1853907024] [2024-11-28 03:55:51,888 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1853907024] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:55:51,888 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:55:51,888 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-28 03:55:51,888 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [337025212] [2024-11-28 03:55:51,889 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:55:51,890 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 03:55:51,890 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:55:51,891 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 03:55:51,891 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-28 03:55:51,891 INFO L87 Difference]: Start difference. First operand 2028 states and 3286 transitions. Second operand has 4 states, 4 states have (on average 38.75) internal successors, (155), 4 states have internal predecessors, (155), 1 states have call successors, (76), 1 states have call predecessors, (76), 1 states have return successors, (76), 1 states have call predecessors, (76), 1 states have call successors, (76) [2024-11-28 03:55:52,745 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:55:52,746 INFO L93 Difference]: Finished difference Result 4014 states and 6489 transitions. [2024-11-28 03:55:52,746 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 03:55:52,747 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 38.75) internal successors, (155), 4 states have internal predecessors, (155), 1 states have call successors, (76), 1 states have call predecessors, (76), 1 states have return successors, (76), 1 states have call predecessors, (76), 1 states have call successors, (76) Word has length 532 [2024-11-28 03:55:52,748 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:55:52,765 INFO L225 Difference]: With dead ends: 4014 [2024-11-28 03:55:52,765 INFO L226 Difference]: Without dead ends: 2142 [2024-11-28 03:55:52,771 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-28 03:55:52,772 INFO L435 NwaCegarLoop]: 520 mSDtfsCounter, 425 mSDsluCounter, 1013 mSDsCounter, 0 mSdLazyCounter, 48 mSolverCounterSat, 230 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 425 SdHoareTripleChecker+Valid, 1533 SdHoareTripleChecker+Invalid, 278 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 230 IncrementalHoareTripleChecker+Valid, 48 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-28 03:55:52,772 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [425 Valid, 1533 Invalid, 278 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [230 Valid, 48 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-28 03:55:52,776 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2142 states. [2024-11-28 03:55:53,006 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2142 to 2032. [2024-11-28 03:55:53,011 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2032 states, 1641 states have (on average 1.5411334552102376) internal successors, (2529), 1641 states have internal predecessors, (2529), 380 states have call successors, (380), 10 states have call predecessors, (380), 10 states have return successors, (380), 380 states have call predecessors, (380), 380 states have call successors, (380) [2024-11-28 03:55:53,026 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2032 states to 2032 states and 3289 transitions. [2024-11-28 03:55:53,029 INFO L78 Accepts]: Start accepts. Automaton has 2032 states and 3289 transitions. Word has length 532 [2024-11-28 03:55:53,031 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:55:53,031 INFO L471 AbstractCegarLoop]: Abstraction has 2032 states and 3289 transitions. [2024-11-28 03:55:53,031 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 38.75) internal successors, (155), 4 states have internal predecessors, (155), 1 states have call successors, (76), 1 states have call predecessors, (76), 1 states have return successors, (76), 1 states have call predecessors, (76), 1 states have call successors, (76) [2024-11-28 03:55:53,032 INFO L276 IsEmpty]: Start isEmpty. Operand 2032 states and 3289 transitions. [2024-11-28 03:55:53,037 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 534 [2024-11-28 03:55:53,038 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:55:53,038 INFO L218 NwaCegarLoop]: trace histogram [76, 76, 76, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:55:53,038 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-28 03:55:53,039 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:55:53,039 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:55:53,040 INFO L85 PathProgramCache]: Analyzing trace with hash 1558616345, now seen corresponding path program 1 times [2024-11-28 03:55:53,040 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:55:53,040 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1718556764] [2024-11-28 03:55:53,040 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:55:53,040 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:55:53,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:55:54,372 INFO L134 CoverageAnalysis]: Checked inductivity of 11400 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 11400 trivial. 0 not checked. [2024-11-28 03:55:54,372 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:55:54,372 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1718556764] [2024-11-28 03:55:54,373 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1718556764] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:55:54,373 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:55:54,373 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-28 03:55:54,373 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [165620290] [2024-11-28 03:55:54,373 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:55:54,374 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 03:55:54,374 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:55:54,375 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 03:55:54,375 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-28 03:55:54,376 INFO L87 Difference]: Start difference. First operand 2032 states and 3289 transitions. Second operand has 4 states, 4 states have (on average 39.0) internal successors, (156), 4 states have internal predecessors, (156), 1 states have call successors, (76), 1 states have call predecessors, (76), 1 states have return successors, (76), 1 states have call predecessors, (76), 1 states have call successors, (76) [2024-11-28 03:55:55,348 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:55:55,349 INFO L93 Difference]: Finished difference Result 5963 states and 9639 transitions. [2024-11-28 03:55:55,349 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 03:55:55,350 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 39.0) internal successors, (156), 4 states have internal predecessors, (156), 1 states have call successors, (76), 1 states have call predecessors, (76), 1 states have return successors, (76), 1 states have call predecessors, (76), 1 states have call successors, (76) Word has length 533 [2024-11-28 03:55:55,351 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:55:55,383 INFO L225 Difference]: With dead ends: 5963 [2024-11-28 03:55:55,383 INFO L226 Difference]: Without dead ends: 4078 [2024-11-28 03:55:55,390 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-28 03:55:55,391 INFO L435 NwaCegarLoop]: 632 mSDtfsCounter, 687 mSDsluCounter, 1020 mSDsCounter, 0 mSdLazyCounter, 60 mSolverCounterSat, 230 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 687 SdHoareTripleChecker+Valid, 1652 SdHoareTripleChecker+Invalid, 290 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 230 IncrementalHoareTripleChecker+Valid, 60 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-28 03:55:55,392 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [687 Valid, 1652 Invalid, 290 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [230 Valid, 60 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-28 03:55:55,399 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4078 states. [2024-11-28 03:55:55,806 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4078 to 3874. [2024-11-28 03:55:55,819 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3874 states, 3171 states have (on average 1.54241564175339) internal successors, (4891), 3171 states have internal predecessors, (4891), 684 states have call successors, (684), 18 states have call predecessors, (684), 18 states have return successors, (684), 684 states have call predecessors, (684), 684 states have call successors, (684) [2024-11-28 03:55:55,854 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3874 states to 3874 states and 6259 transitions. [2024-11-28 03:55:55,859 INFO L78 Accepts]: Start accepts. Automaton has 3874 states and 6259 transitions. Word has length 533 [2024-11-28 03:55:55,860 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:55:55,861 INFO L471 AbstractCegarLoop]: Abstraction has 3874 states and 6259 transitions. [2024-11-28 03:55:55,861 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 39.0) internal successors, (156), 4 states have internal predecessors, (156), 1 states have call successors, (76), 1 states have call predecessors, (76), 1 states have return successors, (76), 1 states have call predecessors, (76), 1 states have call successors, (76) [2024-11-28 03:55:55,861 INFO L276 IsEmpty]: Start isEmpty. Operand 3874 states and 6259 transitions. [2024-11-28 03:55:55,871 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 535 [2024-11-28 03:55:55,876 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:55:55,876 INFO L218 NwaCegarLoop]: trace histogram [76, 76, 76, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:55:55,876 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-28 03:55:55,876 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:55:55,877 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:55:55,877 INFO L85 PathProgramCache]: Analyzing trace with hash -1455378092, now seen corresponding path program 1 times [2024-11-28 03:55:55,877 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:55:55,877 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [132550102] [2024-11-28 03:55:55,878 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:55:55,878 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:55:56,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:55:57,203 INFO L134 CoverageAnalysis]: Checked inductivity of 11400 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 11400 trivial. 0 not checked. [2024-11-28 03:55:57,204 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:55:57,204 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [132550102] [2024-11-28 03:55:57,204 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [132550102] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:55:57,204 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:55:57,204 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-28 03:55:57,205 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1997458284] [2024-11-28 03:55:57,205 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:55:57,206 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 03:55:57,206 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:55:57,207 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 03:55:57,207 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-28 03:55:57,208 INFO L87 Difference]: Start difference. First operand 3874 states and 6259 transitions. Second operand has 5 states, 5 states have (on average 31.4) internal successors, (157), 5 states have internal predecessors, (157), 1 states have call successors, (76), 1 states have call predecessors, (76), 1 states have return successors, (76), 1 states have call predecessors, (76), 1 states have call successors, (76) [2024-11-28 03:55:58,339 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:55:58,339 INFO L93 Difference]: Finished difference Result 7909 states and 12739 transitions. [2024-11-28 03:55:58,340 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 03:55:58,341 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 31.4) internal successors, (157), 5 states have internal predecessors, (157), 1 states have call successors, (76), 1 states have call predecessors, (76), 1 states have return successors, (76), 1 states have call predecessors, (76), 1 states have call successors, (76) Word has length 534 [2024-11-28 03:55:58,342 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:55:58,386 INFO L225 Difference]: With dead ends: 7909 [2024-11-28 03:55:58,386 INFO L226 Difference]: Without dead ends: 4182 [2024-11-28 03:55:58,398 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-28 03:55:58,399 INFO L435 NwaCegarLoop]: 628 mSDtfsCounter, 678 mSDsluCounter, 1519 mSDsCounter, 0 mSdLazyCounter, 87 mSolverCounterSat, 230 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 678 SdHoareTripleChecker+Valid, 2147 SdHoareTripleChecker+Invalid, 317 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 230 IncrementalHoareTripleChecker+Valid, 87 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-28 03:55:58,400 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [678 Valid, 2147 Invalid, 317 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [230 Valid, 87 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-28 03:55:58,408 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4182 states. [2024-11-28 03:55:58,904 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4182 to 3884. [2024-11-28 03:55:58,913 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3884 states, 3181 states have (on average 1.5363093366865765) internal successors, (4887), 3181 states have internal predecessors, (4887), 684 states have call successors, (684), 18 states have call predecessors, (684), 18 states have return successors, (684), 684 states have call predecessors, (684), 684 states have call successors, (684) [2024-11-28 03:55:58,941 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3884 states to 3884 states and 6255 transitions. [2024-11-28 03:55:58,947 INFO L78 Accepts]: Start accepts. Automaton has 3884 states and 6255 transitions. Word has length 534 [2024-11-28 03:55:58,948 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:55:58,949 INFO L471 AbstractCegarLoop]: Abstraction has 3884 states and 6255 transitions. [2024-11-28 03:55:58,949 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 31.4) internal successors, (157), 5 states have internal predecessors, (157), 1 states have call successors, (76), 1 states have call predecessors, (76), 1 states have return successors, (76), 1 states have call predecessors, (76), 1 states have call successors, (76) [2024-11-28 03:55:58,949 INFO L276 IsEmpty]: Start isEmpty. Operand 3884 states and 6255 transitions. [2024-11-28 03:55:58,960 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 536 [2024-11-28 03:55:58,960 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:55:58,961 INFO L218 NwaCegarLoop]: trace histogram [76, 76, 76, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:55:58,961 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-28 03:55:58,962 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:55:58,963 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:55:58,963 INFO L85 PathProgramCache]: Analyzing trace with hash 1035437270, now seen corresponding path program 1 times [2024-11-28 03:55:58,964 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:55:58,964 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1727175184] [2024-11-28 03:55:58,964 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:55:58,964 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:56:00,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:56:03,447 INFO L134 CoverageAnalysis]: Checked inductivity of 11400 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 11400 trivial. 0 not checked. [2024-11-28 03:56:03,447 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:56:03,447 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1727175184] [2024-11-28 03:56:03,447 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1727175184] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:56:03,448 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:56:03,448 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2024-11-28 03:56:03,448 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [233779135] [2024-11-28 03:56:03,448 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:56:03,449 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-11-28 03:56:03,449 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:56:03,450 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-11-28 03:56:03,451 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=208, Unknown=0, NotChecked=0, Total=240 [2024-11-28 03:56:03,452 INFO L87 Difference]: Start difference. First operand 3884 states and 6255 transitions. Second operand has 16 states, 16 states have (on average 9.875) internal successors, (158), 16 states have internal predecessors, (158), 1 states have call successors, (76), 1 states have call predecessors, (76), 1 states have return successors, (76), 1 states have call predecessors, (76), 1 states have call successors, (76) [2024-11-28 03:56:15,174 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:56:15,174 INFO L93 Difference]: Finished difference Result 21910 states and 35146 transitions. [2024-11-28 03:56:15,175 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2024-11-28 03:56:15,176 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 9.875) internal successors, (158), 16 states have internal predecessors, (158), 1 states have call successors, (76), 1 states have call predecessors, (76), 1 states have return successors, (76), 1 states have call predecessors, (76), 1 states have call successors, (76) Word has length 535 [2024-11-28 03:56:15,177 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:56:15,271 INFO L225 Difference]: With dead ends: 21910 [2024-11-28 03:56:15,271 INFO L226 Difference]: Without dead ends: 18531 [2024-11-28 03:56:15,290 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 403 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=317, Invalid=1575, Unknown=0, NotChecked=0, Total=1892 [2024-11-28 03:56:15,291 INFO L435 NwaCegarLoop]: 960 mSDtfsCounter, 4609 mSDsluCounter, 8153 mSDsCounter, 0 mSdLazyCounter, 4861 mSolverCounterSat, 932 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4609 SdHoareTripleChecker+Valid, 9113 SdHoareTripleChecker+Invalid, 5793 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 932 IncrementalHoareTripleChecker+Valid, 4861 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.8s IncrementalHoareTripleChecker+Time [2024-11-28 03:56:15,291 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [4609 Valid, 9113 Invalid, 5793 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [932 Valid, 4861 Invalid, 0 Unknown, 0 Unchecked, 8.8s Time] [2024-11-28 03:56:15,313 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18531 states. [2024-11-28 03:56:16,862 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18531 to 16335. [2024-11-28 03:56:16,887 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16335 states, 14180 states have (on average 1.5579689703808182) internal successors, (22092), 14208 states have internal predecessors, (22092), 2064 states have call successors, (2064), 90 states have call predecessors, (2064), 90 states have return successors, (2064), 2036 states have call predecessors, (2064), 2064 states have call successors, (2064) [2024-11-28 03:56:16,943 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16335 states to 16335 states and 26220 transitions. [2024-11-28 03:56:16,959 INFO L78 Accepts]: Start accepts. Automaton has 16335 states and 26220 transitions. Word has length 535 [2024-11-28 03:56:16,960 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:56:16,960 INFO L471 AbstractCegarLoop]: Abstraction has 16335 states and 26220 transitions. [2024-11-28 03:56:16,961 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 9.875) internal successors, (158), 16 states have internal predecessors, (158), 1 states have call successors, (76), 1 states have call predecessors, (76), 1 states have return successors, (76), 1 states have call predecessors, (76), 1 states have call successors, (76) [2024-11-28 03:56:16,961 INFO L276 IsEmpty]: Start isEmpty. Operand 16335 states and 26220 transitions. [2024-11-28 03:56:16,975 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 536 [2024-11-28 03:56:16,975 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:56:16,976 INFO L218 NwaCegarLoop]: trace histogram [76, 76, 76, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:56:16,976 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-28 03:56:16,976 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:56:16,976 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:56:16,977 INFO L85 PathProgramCache]: Analyzing trace with hash 375599613, now seen corresponding path program 1 times [2024-11-28 03:56:16,977 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:56:16,977 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [708103789] [2024-11-28 03:56:16,977 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:56:16,977 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:56:17,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:56:18,395 INFO L134 CoverageAnalysis]: Checked inductivity of 11400 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 11400 trivial. 0 not checked. [2024-11-28 03:56:18,395 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:56:18,395 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [708103789] [2024-11-28 03:56:18,396 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [708103789] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:56:18,396 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:56:18,396 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-28 03:56:18,396 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [623181684] [2024-11-28 03:56:18,396 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:56:18,397 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 03:56:18,397 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:56:18,398 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 03:56:18,398 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-28 03:56:18,399 INFO L87 Difference]: Start difference. First operand 16335 states and 26220 transitions. Second operand has 5 states, 5 states have (on average 31.6) internal successors, (158), 5 states have internal predecessors, (158), 1 states have call successors, (76), 1 states have call predecessors, (76), 1 states have return successors, (76), 1 states have call predecessors, (76), 1 states have call successors, (76) [2024-11-28 03:56:21,950 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:56:21,950 INFO L93 Difference]: Finished difference Result 41422 states and 66436 transitions. [2024-11-28 03:56:21,951 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-28 03:56:21,952 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 31.6) internal successors, (158), 5 states have internal predecessors, (158), 1 states have call successors, (76), 1 states have call predecessors, (76), 1 states have return successors, (76), 1 states have call predecessors, (76), 1 states have call successors, (76) Word has length 535 [2024-11-28 03:56:21,953 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:56:22,096 INFO L225 Difference]: With dead ends: 41422 [2024-11-28 03:56:22,096 INFO L226 Difference]: Without dead ends: 26257 [2024-11-28 03:56:22,134 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2024-11-28 03:56:22,135 INFO L435 NwaCegarLoop]: 851 mSDtfsCounter, 1290 mSDsluCounter, 1631 mSDsCounter, 0 mSdLazyCounter, 699 mSolverCounterSat, 230 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1290 SdHoareTripleChecker+Valid, 2482 SdHoareTripleChecker+Invalid, 929 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 230 IncrementalHoareTripleChecker+Valid, 699 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2024-11-28 03:56:22,136 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1290 Valid, 2482 Invalid, 929 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [230 Valid, 699 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2024-11-28 03:56:22,172 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26257 states. [2024-11-28 03:56:24,674 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26257 to 25361. [2024-11-28 03:56:24,716 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25361 states, 21830 states have (on average 1.5514887769125056) internal successors, (33869), 21878 states have internal predecessors, (33869), 3384 states have call successors, (3384), 146 states have call predecessors, (3384), 146 states have return successors, (3384), 3336 states have call predecessors, (3384), 3384 states have call successors, (3384) [2024-11-28 03:56:24,793 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25361 states to 25361 states and 40637 transitions. [2024-11-28 03:56:24,810 INFO L78 Accepts]: Start accepts. Automaton has 25361 states and 40637 transitions. Word has length 535 [2024-11-28 03:56:24,811 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:56:24,811 INFO L471 AbstractCegarLoop]: Abstraction has 25361 states and 40637 transitions. [2024-11-28 03:56:24,812 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 31.6) internal successors, (158), 5 states have internal predecessors, (158), 1 states have call successors, (76), 1 states have call predecessors, (76), 1 states have return successors, (76), 1 states have call predecessors, (76), 1 states have call successors, (76) [2024-11-28 03:56:24,812 INFO L276 IsEmpty]: Start isEmpty. Operand 25361 states and 40637 transitions. [2024-11-28 03:56:24,826 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 536 [2024-11-28 03:56:24,826 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:56:24,827 INFO L218 NwaCegarLoop]: trace histogram [76, 76, 76, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:56:24,827 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-28 03:56:24,827 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:56:24,829 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:56:24,829 INFO L85 PathProgramCache]: Analyzing trace with hash -1382466796, now seen corresponding path program 1 times [2024-11-28 03:56:24,829 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:56:24,829 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [407070596] [2024-11-28 03:56:24,829 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:56:24,830 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:56:25,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:56:26,908 INFO L134 CoverageAnalysis]: Checked inductivity of 11400 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 11400 trivial. 0 not checked. [2024-11-28 03:56:26,908 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:56:26,908 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [407070596] [2024-11-28 03:56:26,909 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [407070596] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:56:26,909 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:56:26,909 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-28 03:56:26,909 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [729584011] [2024-11-28 03:56:26,909 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:56:26,910 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-28 03:56:26,910 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:56:26,911 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-28 03:56:26,911 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2024-11-28 03:56:26,912 INFO L87 Difference]: Start difference. First operand 25361 states and 40637 transitions. Second operand has 8 states, 8 states have (on average 19.75) internal successors, (158), 8 states have internal predecessors, (158), 2 states have call successors, (76), 1 states have call predecessors, (76), 1 states have return successors, (76), 2 states have call predecessors, (76), 2 states have call successors, (76) [2024-11-28 03:56:33,994 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:56:33,994 INFO L93 Difference]: Finished difference Result 44486 states and 71212 transitions. [2024-11-28 03:56:33,994 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-28 03:56:33,995 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 19.75) internal successors, (158), 8 states have internal predecessors, (158), 2 states have call successors, (76), 1 states have call predecessors, (76), 1 states have return successors, (76), 2 states have call predecessors, (76), 2 states have call successors, (76) Word has length 535 [2024-11-28 03:56:33,996 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:56:34,167 INFO L225 Difference]: With dead ends: 44486 [2024-11-28 03:56:34,167 INFO L226 Difference]: Without dead ends: 34520 [2024-11-28 03:56:34,201 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=50, Invalid=106, Unknown=0, NotChecked=0, Total=156 [2024-11-28 03:56:34,202 INFO L435 NwaCegarLoop]: 785 mSDtfsCounter, 2874 mSDsluCounter, 2097 mSDsCounter, 0 mSdLazyCounter, 1907 mSolverCounterSat, 550 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2874 SdHoareTripleChecker+Valid, 2882 SdHoareTripleChecker+Invalid, 2457 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 550 IncrementalHoareTripleChecker+Valid, 1907 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.5s IncrementalHoareTripleChecker+Time [2024-11-28 03:56:34,203 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2874 Valid, 2882 Invalid, 2457 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [550 Valid, 1907 Invalid, 0 Unknown, 0 Unchecked, 4.5s Time] [2024-11-28 03:56:34,231 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34520 states. [2024-11-28 03:56:36,985 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34520 to 29501. [2024-11-28 03:56:37,024 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29501 states, 25505 states have (on average 1.5547931778082729) internal successors, (39655), 25565 states have internal predecessors, (39655), 3812 states have call successors, (3812), 183 states have call predecessors, (3812), 183 states have return successors, (3812), 3752 states have call predecessors, (3812), 3812 states have call successors, (3812) [2024-11-28 03:56:37,122 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29501 states to 29501 states and 47279 transitions. [2024-11-28 03:56:37,144 INFO L78 Accepts]: Start accepts. Automaton has 29501 states and 47279 transitions. Word has length 535 [2024-11-28 03:56:37,145 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:56:37,145 INFO L471 AbstractCegarLoop]: Abstraction has 29501 states and 47279 transitions. [2024-11-28 03:56:37,146 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 19.75) internal successors, (158), 8 states have internal predecessors, (158), 2 states have call successors, (76), 1 states have call predecessors, (76), 1 states have return successors, (76), 2 states have call predecessors, (76), 2 states have call successors, (76) [2024-11-28 03:56:37,146 INFO L276 IsEmpty]: Start isEmpty. Operand 29501 states and 47279 transitions. [2024-11-28 03:56:37,161 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 537 [2024-11-28 03:56:37,161 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:56:37,162 INFO L218 NwaCegarLoop]: trace histogram [76, 76, 76, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:56:37,162 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-28 03:56:37,162 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:56:37,163 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:56:37,163 INFO L85 PathProgramCache]: Analyzing trace with hash -844340419, now seen corresponding path program 1 times [2024-11-28 03:56:37,163 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:56:37,164 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1819024446] [2024-11-28 03:56:37,164 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:56:37,164 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:56:39,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:56:40,711 INFO L134 CoverageAnalysis]: Checked inductivity of 11400 backedges. 33 proven. 192 refuted. 0 times theorem prover too weak. 11175 trivial. 0 not checked. [2024-11-28 03:56:40,712 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:56:40,712 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1819024446] [2024-11-28 03:56:40,713 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1819024446] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 03:56:40,713 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [788490356] [2024-11-28 03:56:40,713 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:56:40,713 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:56:40,713 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b14b0c39-03bc-489e-afd0-b44ae09ba5e4/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:56:40,717 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b14b0c39-03bc-489e-afd0-b44ae09ba5e4/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 03:56:40,720 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b14b0c39-03bc-489e-afd0-b44ae09ba5e4/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-28 03:56:41,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:56:41,397 INFO L256 TraceCheckSpWp]: Trace formula consists of 1318 conjuncts, 33 conjuncts are in the unsatisfiable core [2024-11-28 03:56:41,427 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:56:45,230 INFO L134 CoverageAnalysis]: Checked inductivity of 11400 backedges. 7511 proven. 399 refuted. 0 times theorem prover too weak. 3490 trivial. 0 not checked. [2024-11-28 03:56:45,230 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 03:56:47,676 INFO L134 CoverageAnalysis]: Checked inductivity of 11400 backedges. 162 proven. 285 refuted. 0 times theorem prover too weak. 10953 trivial. 0 not checked. [2024-11-28 03:56:47,677 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [788490356] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 03:56:47,677 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 03:56:47,677 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 18, 17] total 34 [2024-11-28 03:56:47,679 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1140431041] [2024-11-28 03:56:47,679 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 03:56:47,681 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 34 states [2024-11-28 03:56:47,682 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:56:47,684 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2024-11-28 03:56:47,684 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=262, Invalid=860, Unknown=0, NotChecked=0, Total=1122 [2024-11-28 03:56:47,685 INFO L87 Difference]: Start difference. First operand 29501 states and 47279 transitions. Second operand has 34 states, 34 states have (on average 11.058823529411764) internal successors, (376), 34 states have internal predecessors, (376), 8 states have call successors, (200), 4 states have call predecessors, (200), 9 states have return successors, (202), 8 states have call predecessors, (202), 8 states have call successors, (202) [2024-11-28 03:57:14,119 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:57:14,119 INFO L93 Difference]: Finished difference Result 136679 states and 215424 transitions. [2024-11-28 03:57:14,120 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 203 states. [2024-11-28 03:57:14,120 INFO L78 Accepts]: Start accepts. Automaton has has 34 states, 34 states have (on average 11.058823529411764) internal successors, (376), 34 states have internal predecessors, (376), 8 states have call successors, (200), 4 states have call predecessors, (200), 9 states have return successors, (202), 8 states have call predecessors, (202), 8 states have call successors, (202) Word has length 536 [2024-11-28 03:57:14,120 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:57:14,548 INFO L225 Difference]: With dead ends: 136679 [2024-11-28 03:57:14,548 INFO L226 Difference]: Without dead ends: 107632 [2024-11-28 03:57:14,642 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 1302 GetRequests, 1074 SyntacticMatches, 0 SemanticMatches, 228 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21650 ImplicationChecksByTransitivity, 7.9s TimeCoverageRelationStatistics Valid=7717, Invalid=44953, Unknown=0, NotChecked=0, Total=52670 [2024-11-28 03:57:14,643 INFO L435 NwaCegarLoop]: 964 mSDtfsCounter, 11365 mSDsluCounter, 8722 mSDsCounter, 0 mSdLazyCounter, 7962 mSolverCounterSat, 1639 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11369 SdHoareTripleChecker+Valid, 9686 SdHoareTripleChecker+Invalid, 9601 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1639 IncrementalHoareTripleChecker+Valid, 7962 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.1s IncrementalHoareTripleChecker+Time [2024-11-28 03:57:14,644 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [11369 Valid, 9686 Invalid, 9601 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1639 Valid, 7962 Invalid, 0 Unknown, 0 Unchecked, 10.1s Time] [2024-11-28 03:57:14,724 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 107632 states. [2024-11-28 03:57:18,618 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 107632 to 51497. [2024-11-28 03:57:18,668 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 51497 states, 46872 states have (on average 1.5651348352961256) internal successors, (73361), 46948 states have internal predecessors, (73361), 4064 states have call successors, (4064), 560 states have call predecessors, (4064), 560 states have return successors, (4064), 3988 states have call predecessors, (4064), 4064 states have call successors, (4064) [2024-11-28 03:57:18,904 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51497 states to 51497 states and 81489 transitions. [2024-11-28 03:57:18,940 INFO L78 Accepts]: Start accepts. Automaton has 51497 states and 81489 transitions. Word has length 536 [2024-11-28 03:57:18,941 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:57:18,941 INFO L471 AbstractCegarLoop]: Abstraction has 51497 states and 81489 transitions. [2024-11-28 03:57:18,943 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 34 states, 34 states have (on average 11.058823529411764) internal successors, (376), 34 states have internal predecessors, (376), 8 states have call successors, (200), 4 states have call predecessors, (200), 9 states have return successors, (202), 8 states have call predecessors, (202), 8 states have call successors, (202) [2024-11-28 03:57:18,944 INFO L276 IsEmpty]: Start isEmpty. Operand 51497 states and 81489 transitions. [2024-11-28 03:57:18,966 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 538 [2024-11-28 03:57:18,967 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:57:18,967 INFO L218 NwaCegarLoop]: trace histogram [76, 76, 76, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:57:18,980 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b14b0c39-03bc-489e-afd0-b44ae09ba5e4/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-28 03:57:19,171 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b14b0c39-03bc-489e-afd0-b44ae09ba5e4/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2024-11-28 03:57:19,171 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:57:19,172 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:57:19,172 INFO L85 PathProgramCache]: Analyzing trace with hash -972234197, now seen corresponding path program 1 times [2024-11-28 03:57:19,172 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:57:19,172 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1921353116] [2024-11-28 03:57:19,173 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:57:19,173 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:57:19,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:57:21,347 INFO L134 CoverageAnalysis]: Checked inductivity of 11400 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 11400 trivial. 0 not checked. [2024-11-28 03:57:21,347 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:57:21,347 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1921353116] [2024-11-28 03:57:21,347 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1921353116] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:57:21,347 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:57:21,348 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-28 03:57:21,348 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [232791297] [2024-11-28 03:57:21,348 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:57:21,349 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-28 03:57:21,349 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:57:21,349 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-28 03:57:21,349 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2024-11-28 03:57:21,350 INFO L87 Difference]: Start difference. First operand 51497 states and 81489 transitions. Second operand has 10 states, 10 states have (on average 16.0) internal successors, (160), 10 states have internal predecessors, (160), 1 states have call successors, (76), 1 states have call predecessors, (76), 1 states have return successors, (76), 1 states have call predecessors, (76), 1 states have call successors, (76) [2024-11-28 03:57:30,532 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:57:30,532 INFO L93 Difference]: Finished difference Result 164449 states and 259105 transitions. [2024-11-28 03:57:30,532 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-28 03:57:30,533 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 16.0) internal successors, (160), 10 states have internal predecessors, (160), 1 states have call successors, (76), 1 states have call predecessors, (76), 1 states have return successors, (76), 1 states have call predecessors, (76), 1 states have call successors, (76) Word has length 537 [2024-11-28 03:57:30,533 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:57:30,805 INFO L225 Difference]: With dead ends: 164449 [2024-11-28 03:57:30,805 INFO L226 Difference]: Without dead ends: 114627 [2024-11-28 03:57:30,893 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=75, Invalid=165, Unknown=0, NotChecked=0, Total=240 [2024-11-28 03:57:30,894 INFO L435 NwaCegarLoop]: 733 mSDtfsCounter, 1658 mSDsluCounter, 3844 mSDsCounter, 0 mSdLazyCounter, 1207 mSolverCounterSat, 549 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1658 SdHoareTripleChecker+Valid, 4577 SdHoareTripleChecker+Invalid, 1756 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 549 IncrementalHoareTripleChecker+Valid, 1207 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2024-11-28 03:57:30,894 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1658 Valid, 4577 Invalid, 1756 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [549 Valid, 1207 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2024-11-28 03:57:30,975 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 114627 states. [2024-11-28 03:57:36,399 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 114627 to 84827. [2024-11-28 03:57:36,454 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 84827 states, 78926 states have (on average 1.5732331551073158) internal successors, (124169), 79066 states have internal predecessors, (124169), 5136 states have call successors, (5136), 764 states have call predecessors, (5136), 764 states have return successors, (5136), 4996 states have call predecessors, (5136), 5136 states have call successors, (5136) [2024-11-28 03:57:36,853 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 84827 states to 84827 states and 134441 transitions. [2024-11-28 03:57:36,892 INFO L78 Accepts]: Start accepts. Automaton has 84827 states and 134441 transitions. Word has length 537 [2024-11-28 03:57:36,893 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:57:36,893 INFO L471 AbstractCegarLoop]: Abstraction has 84827 states and 134441 transitions. [2024-11-28 03:57:36,894 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 16.0) internal successors, (160), 10 states have internal predecessors, (160), 1 states have call successors, (76), 1 states have call predecessors, (76), 1 states have return successors, (76), 1 states have call predecessors, (76), 1 states have call successors, (76) [2024-11-28 03:57:36,894 INFO L276 IsEmpty]: Start isEmpty. Operand 84827 states and 134441 transitions. [2024-11-28 03:57:36,940 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 538 [2024-11-28 03:57:36,941 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:57:36,941 INFO L218 NwaCegarLoop]: trace histogram [76, 76, 76, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:57:36,941 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-28 03:57:36,942 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:57:36,946 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:57:36,946 INFO L85 PathProgramCache]: Analyzing trace with hash 966927849, now seen corresponding path program 1 times [2024-11-28 03:57:36,946 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:57:36,946 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [15985791] [2024-11-28 03:57:36,946 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:57:36,947 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:57:37,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:57:39,466 INFO L134 CoverageAnalysis]: Checked inductivity of 11400 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 11400 trivial. 0 not checked. [2024-11-28 03:57:39,467 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:57:39,467 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [15985791] [2024-11-28 03:57:39,467 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [15985791] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:57:39,467 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:57:39,467 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-28 03:57:39,467 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1263490352] [2024-11-28 03:57:39,468 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:57:39,468 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-28 03:57:39,468 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:57:39,469 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-28 03:57:39,469 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-28 03:57:39,470 INFO L87 Difference]: Start difference. First operand 84827 states and 134441 transitions. Second operand has 6 states, 6 states have (on average 26.666666666666668) internal successors, (160), 6 states have internal predecessors, (160), 1 states have call successors, (76), 1 states have call predecessors, (76), 1 states have return successors, (76), 1 states have call predecessors, (76), 1 states have call successors, (76)